diff --git a/bin/java-petstore-all.sh b/bin/java-petstore-all.sh
index 11148e31c9f..8b1dbc57f59 100755
--- a/bin/java-petstore-all.sh
+++ b/bin/java-petstore-all.sh
@@ -11,3 +11,4 @@
 ./bin/java8-petstore-jersey2.sh
 ./bin/java-petstore-retrofit2-play24.sh
 ./bin/java-petstore-jersey2-java6.sh
+./bin/java-petstore-resttemplate.sh
diff --git a/bin/java-petstore-resttemplate.json b/bin/java-petstore-resttemplate.json
new file mode 100644
index 00000000000..b285b107bc4
--- /dev/null
+++ b/bin/java-petstore-resttemplate.json
@@ -0,0 +1,4 @@
+{
+    "library": "resttemplate",
+    "artifactId": "swagger-petstore-resttemplate"
+}
\ No newline at end of file
diff --git a/bin/java-petstore-resttemplate.sh b/bin/java-petstore-resttemplate.sh
new file mode 100755
index 00000000000..aa9f9778a30
--- /dev/null
+++ b/bin/java-petstore-resttemplate.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+SCRIPT="$0"
+
+while [ -h "$SCRIPT" ] ; do
+  ls=`ls -ld "$SCRIPT"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    SCRIPT="$link"
+  else
+    SCRIPT=`dirname "$SCRIPT"`/"$link"
+  fi
+done
+
+if [ ! -d "${APP_DIR}" ]; then
+  APP_DIR=`dirname "$SCRIPT"`/..
+  APP_DIR=`cd "${APP_DIR}"; pwd`
+fi
+
+executable="./modules/swagger-codegen-cli/target/swagger-codegen-cli.jar"
+
+if [ ! -f "$executable" ]
+then
+  mvn clean package
+fi
+
+# if you've executed sbt assembly previously it will use that instead.
+export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
+ags="$@ generate -i modules/swagger-codegen/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml -l java -c bin/java-petstore-resttemplate.json -o samples/client/petstore/java/resttemplate -DhideGenerationTimestamp=true"
+
+echo "Removing files and folders under samples/client/petstore/java/resttemplate/src/main"
+rm -rf samples/client/petstore/java/resttemplate/src/main
+find samples/client/petstore/java/resttemplate -maxdepth 1 -type f ! -name "README.md" -exec rm {} +
+java $JAVA_OPTS -jar $executable $ags
diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
index 324f5be2d89..ef89daa6cf8 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavaClientCodegen.java
@@ -68,6 +68,7 @@ public class JavaClientCodegen extends AbstractJavaCodegen
         supportedLibraries.put("okhttp-gson", "HTTP client: OkHttp 2.7.5. JSON processing: Gson 2.6.2. Enable Parcelable modles on Android using '-DparcelableModel=true'. Enable gzip request encoding using '-DuseGzipFeature=true'.");
         supportedLibraries.put(RETROFIT_1, "HTTP client: OkHttp 2.7.5. JSON processing: Gson 2.3.1 (Retrofit 1.9.0). IMPORTANT NOTE: retrofit1.x is no longer actively maintained so please upgrade to 'retrofit2' instead.");
         supportedLibraries.put(RETROFIT_2, "HTTP client: OkHttp 3.2.0. JSON processing: Gson 2.6.1 (Retrofit 2.0.2). Enable the RxJava adapter using '-DuseRxJava[2]=true'. (RxJava 1.x or 2.x)");
+        supportedLibraries.put("resttemplate", "HTTP client: Spring RestTemplate 4.3.7-RELEASE. JSON processing: Jackson 2.8.8");
 
         CliOption libraryOption = new CliOption(CodegenConstants.LIBRARY, "library template (sub-template) to use");
         libraryOption.setEnum(supportedLibraries);
@@ -148,7 +149,10 @@ public class JavaClientCodegen extends AbstractJavaCodegen
         writeOptional(outputFolder, new SupportingFile("manifest.mustache", projectFolder, "AndroidManifest.xml"));
         supportingFiles.add(new SupportingFile("travis.mustache", "", ".travis.yml"));
         supportingFiles.add(new SupportingFile("ApiClient.mustache", invokerFolder, "ApiClient.java"));
-        supportingFiles.add(new SupportingFile("StringUtil.mustache", invokerFolder, "StringUtil.java"));
+        if(!"resttemplate".equals(getLibrary())) {
+            supportingFiles.add(new SupportingFile("StringUtil.mustache", invokerFolder, "StringUtil.java"));
+        }
+
         supportingFiles.add(new SupportingFile("auth/HttpBasicAuth.mustache", authFolder, "HttpBasicAuth.java"));
         supportingFiles.add(new SupportingFile("auth/ApiKeyAuth.mustache", authFolder, "ApiKeyAuth.java"));
         supportingFiles.add(new SupportingFile("auth/OAuth.mustache", authFolder, "OAuth.java"));
@@ -173,7 +177,7 @@ public class JavaClientCodegen extends AbstractJavaCodegen
             apiDocTemplateFiles.remove("api_doc.mustache");
         }
 
-        if (!("feign".equals(getLibrary()) || usesAnyRetrofitLibrary())) {
+        if (!("feign".equals(getLibrary()) || "resttemplate".equals(getLibrary()) || usesAnyRetrofitLibrary())) {
             supportingFiles.add(new SupportingFile("apiException.mustache", invokerFolder, "ApiException.java"));
             supportingFiles.add(new SupportingFile("Configuration.mustache", invokerFolder, "Configuration.java"));
             supportingFiles.add(new SupportingFile("Pair.mustache", invokerFolder, "Pair.java"));
@@ -202,6 +206,9 @@ public class JavaClientCodegen extends AbstractJavaCodegen
             additionalProperties.put("jackson", "true");
         } else if("jersey1".equals(getLibrary())) {
             additionalProperties.put("jackson", "true");
+        } else if("resttemplate".equals(getLibrary())) {
+            additionalProperties.put("jackson", "true");
+            supportingFiles.add(new SupportingFile("auth/Authentication.mustache", authFolder, "Authentication.java"));
         } else {
             LOGGER.error("Unknown library option (-l/--library): " + getLibrary());
         }
@@ -351,6 +358,7 @@ public class JavaClientCodegen extends AbstractJavaCodegen
             //Needed imports for Jackson based libraries
             if(additionalProperties.containsKey("jackson")) {
                 model.imports.add("JsonProperty");
+                model.imports.add("JsonValue");
             }
             if(additionalProperties.containsKey("gson")) {
                 model.imports.add("SerializedName");
@@ -358,6 +366,7 @@ public class JavaClientCodegen extends AbstractJavaCodegen
         } else { // enum class
             //Needed imports for Jackson's JsonCreator
             if(additionalProperties.containsKey("jackson")) {
+                model.imports.add("JsonValue");
                 model.imports.add("JsonCreator");
             }
         }
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/ApiClient.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/ApiClient.mustache
new file mode 100644
index 00000000000..d119fba36b1
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/ApiClient.mustache
@@ -0,0 +1,627 @@
+package {{invokerPackage}};
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpRequest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.InvalidMediaTypeException;
+import org.springframework.http.MediaType;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.RequestEntity.BodyBuilder;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.BufferingClientHttpRequestFactory;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.util.StringUtils;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.TimeZone;
+
+import {{invokerPackage}}.auth.Authentication;
+import {{invokerPackage}}.auth.HttpBasicAuth;
+import {{invokerPackage}}.auth.ApiKeyAuth;
+import {{invokerPackage}}.auth.OAuth;
+
+{{>generatedAnnotation}}
+@Component("{{invokerPackage}}.ApiClient")
+public class ApiClient {
+    public enum CollectionFormat {
+        CSV(","), TSV("\t"), SSV(" "), PIPES("|"), MULTI(null);
+
+        private final String separator;
+        private CollectionFormat(String separator) {
+            this.separator = separator;
+        }
+
+        private String collectionToString(Collection<? extends CharSequence> collection) {
+            return StringUtils.collectionToDelimitedString(collection, separator);
+        }
+    }
+    
+    private boolean debugging = false;
+    
+    private HttpHeaders defaultHeaders = new HttpHeaders();
+    
+    private String basePath = "{{basePath}}";
+
+    private RestTemplate restTemplate;
+
+    private Map<String, Authentication> authentications;
+
+    private HttpStatus statusCode;
+    private MultiValueMap<String, String> responseHeaders;
+    
+    private DateFormat dateFormat;
+
+    public ApiClient() {
+        this.restTemplate = buildRestTemplate();
+        init();
+    }
+    
+    @Autowired
+    public ApiClient(RestTemplate restTemplate) {
+        this.restTemplate = restTemplate;
+        init();
+    }
+    
+    protected void init() {
+        // Use RFC3339 format for date and datetime.
+        // See http://xml2rfc.ietf.org/public/rfc/html/rfc3339.html#anchor14
+        this.dateFormat = new RFC3339DateFormat();
+
+        // Use UTC as the default time zone.
+        this.dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+        // Set default User-Agent.
+        setUserAgent("Java-SDK");
+
+        // Setup authentications (key: authentication name, value: authentication).
+        authentications = new HashMap<String, Authentication>();{{#authMethods}}{{#isBasic}}
+        authentications.put("{{name}}", new HttpBasicAuth());{{/isBasic}}{{#isApiKey}}
+        authentications.put("{{name}}", new ApiKeyAuth({{#isKeyInHeader}}"header"{{/isKeyInHeader}}{{^isKeyInHeader}}"query"{{/isKeyInHeader}}, "{{keyParamName}}"));{{/isApiKey}}{{#isOAuth}}
+        authentications.put("{{name}}", new OAuth());{{/isOAuth}}{{/authMethods}}
+        // Prevent the authentications from being modified.
+        authentications = Collections.unmodifiableMap(authentications);
+    }
+    
+    /**
+     * Get the current base path
+     * @return String the base path
+     */
+    public String getBasePath() {
+        return basePath;
+    }
+
+    /**
+     * Set the base path, which should include the host
+     * @param basePath the base path
+     * @return ApiClient this client
+     */
+    public ApiClient setBasePath(String basePath) {
+        this.basePath = basePath;
+        return this;
+    }
+
+    /**
+     * Gets the status code of the previous request
+     * @return HttpStatus the status code
+     */
+    public HttpStatus getStatusCode() {
+        return statusCode;
+    }
+
+    /**
+     * Gets the response headers of the previous request
+     * @return MultiValueMap a map of response headers
+     */
+    public MultiValueMap<String, String> getResponseHeaders() {
+        return responseHeaders;
+    }
+
+    /**
+     * Get authentications (key: authentication name, value: authentication).
+     * @return Map the currently configured authentication types
+     */
+    public Map<String, Authentication> getAuthentications() {
+        return authentications;
+    }
+
+    /**
+     * Get authentication for the given name.
+     *
+     * @param authName The authentication name
+     * @return The authentication, null if not found
+     */
+    public Authentication getAuthentication(String authName) {
+        return authentications.get(authName);
+    }
+
+    /**
+     * Helper method to set username for the first HTTP basic authentication.
+     * @param username the username
+     */
+    public void setUsername(String username) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof HttpBasicAuth) {
+                ((HttpBasicAuth) auth).setUsername(username);
+                return;
+            }
+        }
+        throw new RuntimeException("No HTTP basic authentication configured!");
+    }
+
+    /**
+     * Helper method to set password for the first HTTP basic authentication.
+     * @param password the password
+     */
+    public void setPassword(String password) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof HttpBasicAuth) {
+                ((HttpBasicAuth) auth).setPassword(password);
+                return;
+            }
+        }
+        throw new RuntimeException("No HTTP basic authentication configured!");
+    }
+
+    /**
+     * Helper method to set API key value for the first API key authentication.
+     * @param apiKey the API key
+     */
+    public void setApiKey(String apiKey) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof ApiKeyAuth) {
+                ((ApiKeyAuth) auth).setApiKey(apiKey);
+                return;
+            }
+        }
+        throw new RuntimeException("No API key authentication configured!");
+    }
+
+    /**
+     * Helper method to set API key prefix for the first API key authentication.
+     * @param apiKeyPrefix the API key prefix
+     */
+    public void setApiKeyPrefix(String apiKeyPrefix) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof ApiKeyAuth) {
+                ((ApiKeyAuth) auth).setApiKeyPrefix(apiKeyPrefix);
+                return;
+            }
+        }
+        throw new RuntimeException("No API key authentication configured!");
+    }
+
+    /**
+     * Helper method to set access token for the first OAuth2 authentication.
+     * @param accessToken the access token
+     */
+    public void setAccessToken(String accessToken) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof OAuth) {
+                ((OAuth) auth).setAccessToken(accessToken);
+                return;
+            }
+        }
+        throw new RuntimeException("No OAuth2 authentication configured!");
+    }
+
+    /**
+     * Set the User-Agent header's value (by adding to the default header map).
+     * @param userAgent the user agent string
+     * @return ApiClient this client
+     */
+    public ApiClient setUserAgent(String userAgent) {
+        addDefaultHeader("User-Agent", userAgent);
+        return this;
+    }
+
+    /**
+     * Add a default header.
+     *
+     * @param name The header's name
+     * @param value The header's value
+     * @return ApiClient this client
+     */
+    public ApiClient addDefaultHeader(String name, String value) {
+        defaultHeaders.add(name, value);
+        return this;
+    }
+    
+    public void setDebugging(boolean debugging) {
+        List<ClientHttpRequestInterceptor> currentInterceptors = this.restTemplate.getInterceptors();
+        if(debugging) {
+            if (currentInterceptors == null) {
+                currentInterceptors = new ArrayList<ClientHttpRequestInterceptor>();
+            }
+            ClientHttpRequestInterceptor interceptor = new ApiClientHttpRequestInterceptor();
+            currentInterceptors.add(interceptor);
+            this.restTemplate.setInterceptors(currentInterceptors);
+        } else {
+            if (currentInterceptors != null && !currentInterceptors.isEmpty()) {
+                Iterator<ClientHttpRequestInterceptor> iter = currentInterceptors.iterator();
+                while (iter.hasNext()) {
+                    ClientHttpRequestInterceptor interceptor = iter.next();
+                    if (interceptor instanceof ApiClientHttpRequestInterceptor) {
+                        iter.remove();
+                    }
+                }
+                this.restTemplate.setInterceptors(currentInterceptors);
+            }
+        }
+        this.debugging = debugging;
+    }
+
+    /**
+     * Check that whether debugging is enabled for this API client.
+     * @return boolean true if this client is enabled for debugging, false otherwise
+     */
+    public boolean isDebugging() {
+        return debugging;
+    }
+
+    /**
+     * Get the date format used to parse/format date parameters.
+     * @return DateFormat format
+     */
+    public DateFormat getDateFormat() {
+        return dateFormat;
+    }
+
+    /**
+     * Set the date format used to parse/format date parameters.
+     * @param dateFormat Date format
+     * @return API client
+     */
+    public ApiClient setDateFormat(DateFormat dateFormat) {
+        this.dateFormat = dateFormat;
+        return this;
+    }
+    
+    /**
+     * Parse the given string into Date object.
+     */
+    public Date parseDate(String str) {
+        try {
+            return dateFormat.parse(str);
+        } catch (ParseException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Format the given Date object into string.
+     */
+    public String formatDate(Date date) {
+        return dateFormat.format(date);
+    }
+
+    /**
+     * Format the given parameter object into string.
+     * @param param the object to convert
+     * @return String the parameter represented as a String
+     */
+    public String parameterToString(Object param) {
+        if (param == null) {
+            return "";
+        } else if (param instanceof Date) {
+            return formatDate( (Date) param);
+        } else if (param instanceof Collection) {
+            StringBuilder b = new StringBuilder();
+            for(Object o : (Collection<?>) param) {
+                if(b.length() > 0) {
+                    b.append(",");
+                }
+                b.append(String.valueOf(o));
+            }
+            return b.toString();
+        } else {
+            return String.valueOf(param);
+        }
+    }
+
+    /**
+     * Converts a parameter to a {@link MultiValueMap} for use in REST requests
+     * @param collectionFormat The format to convert to
+     * @param name The name of the parameter
+     * @param value The parameter's value
+     * @return a Map containing the String value(s) of the input parameter
+     */
+    public MultiValueMap<String, String> parameterToMultiValueMap(CollectionFormat collectionFormat, String name, Object value) {
+        final MultiValueMap<String, String> params = new LinkedMultiValueMap<String, String>();
+
+        if (name == null || name.isEmpty() || value == null) {
+            return params;
+        }
+
+        if(collectionFormat == null) {
+            collectionFormat = CollectionFormat.CSV;
+        }
+
+        Collection<?> valueCollection = null;
+        if (value instanceof Collection) {
+            valueCollection = (Collection<?>) value;
+        } else {
+            params.add(name, parameterToString(value));
+            return params;
+        }
+
+        if (valueCollection.isEmpty()){
+            return params;
+        }
+
+        if (collectionFormat.equals(CollectionFormat.MULTI)) {
+            for (Object item : valueCollection) {
+                params.add(name, parameterToString(item));
+            }
+            return params;
+        }
+
+        List<String> values = new ArrayList<String>();
+        for(Object o : valueCollection) {
+            values.add(parameterToString(o));
+        }
+        params.add(name, collectionFormat.collectionToString(values));
+
+        return params;
+    }
+
+    /**
+    * Check if the given {@code String} is a JSON MIME.
+    * @param mediaType the input MediaType
+    * @return boolean true if the MediaType represents JSON, false otherwise
+    */
+    public boolean isJsonMime(String mediaType) {
+        try {
+            return isJsonMime(MediaType.parseMediaType(mediaType));
+        } catch (InvalidMediaTypeException e) {
+        }
+        return false;
+    }
+
+    /**
+     * Check if the given MIME is a JSON MIME.
+     * JSON MIME examples:
+     *     application/json
+     *     application/json; charset=UTF8
+     *     APPLICATION/JSON
+     * @param mediaType the input MediaType
+     * @return boolean true if the MediaType represents JSON, false otherwise
+     */
+    public boolean isJsonMime(MediaType mediaType) {
+        return mediaType != null && (MediaType.APPLICATION_JSON.isCompatibleWith(mediaType) || mediaType.getSubtype().matches("^.*\\+json[;]?\\s*$"));
+    }
+
+    /**
+     * Select the Accept header's value from the given accepts array:
+     *     if JSON exists in the given array, use it;
+     *     otherwise use all of them (joining into a string)
+     *
+     * @param accepts The accepts array to select from
+     * @return List The list of MediaTypes to use for the Accept header
+     */
+    public List<MediaType> selectHeaderAccept(String[] accepts) {
+        if (accepts.length == 0) {
+            return null;
+        }
+        for (String accept : accepts) {
+            MediaType mediaType = MediaType.parseMediaType(accept);
+            if (isJsonMime(mediaType)) {
+                return Collections.singletonList(mediaType);
+            }
+        }
+        return MediaType.parseMediaTypes(StringUtils.arrayToCommaDelimitedString(accepts));
+    }
+
+    /**
+     * Select the Content-Type header's value from the given array:
+     *     if JSON exists in the given array, use it;
+     *     otherwise use the first one of the array.
+     *
+     * @param contentTypes The Content-Type array to select from
+     * @return MediaType The Content-Type header to use. If the given array is empty, JSON will be used.
+     */
+    public MediaType selectHeaderContentType(String[] contentTypes) {
+        if (contentTypes.length == 0) {
+            return MediaType.APPLICATION_JSON;
+        }
+        for (String contentType : contentTypes) {
+            MediaType mediaType = MediaType.parseMediaType(contentType);
+            if (isJsonMime(mediaType)) {
+                return mediaType;
+            }
+        }
+        return MediaType.parseMediaType(contentTypes[0]);
+    }
+
+    /**
+     * Select the body to use for the request
+     * @param obj the body object
+     * @param formParams the form parameters
+     * @param contentType the content type of the request
+     * @return Object the selected body
+     */
+    protected Object selectBody(Object obj, MultiValueMap<String, Object> formParams, MediaType contentType) {
+        boolean isForm = MediaType.MULTIPART_FORM_DATA.isCompatibleWith(contentType) || MediaType.APPLICATION_FORM_URLENCODED.isCompatibleWith(contentType);
+        return isForm ? formParams : obj;
+    }
+
+    /**
+     * Invoke API by sending HTTP request with the given options.
+     *
+     * @param <T> the return type to use
+     * @param path The sub-path of the HTTP URL
+     * @param method The request method
+     * @param queryParams The query parameters
+     * @param body The request body object
+     * @param headerParams The header parameters
+     * @param formParams The form parameters
+     * @param accept The request's Accept header
+     * @param contentType The request's Content-Type header
+     * @param authNames The authentications to apply
+     * @param returnType The return type into which to deserialize the response
+     * @return The response body in chosen type
+     */
+    public <T> T invokeAPI(String path, HttpMethod method, MultiValueMap<String, String> queryParams, Object body, HttpHeaders headerParams, MultiValueMap<String, Object> formParams, List<MediaType> accept, MediaType contentType, String[] authNames, ParameterizedTypeReference<T> returnType) throws RestClientException {
+        updateParamsForAuth(authNames, queryParams, headerParams);
+        
+        final UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(basePath).path(path);
+        if (queryParams != null) {
+            builder.queryParams(queryParams);
+        }
+        
+        final BodyBuilder requestBuilder = RequestEntity.method(method, builder.build().toUri());
+        if(accept != null) {
+            requestBuilder.accept(accept.toArray(new MediaType[accept.size()]));
+        }
+        if(contentType != null) {
+            requestBuilder.contentType(contentType);
+        }
+        
+        addHeadersToRequest(headerParams, requestBuilder);
+        addHeadersToRequest(defaultHeaders, requestBuilder);
+        
+        RequestEntity<Object> requestEntity = requestBuilder.body(selectBody(body, formParams, contentType));
+
+        ResponseEntity<T> responseEntity = restTemplate.exchange(requestEntity, returnType);
+        
+        statusCode = responseEntity.getStatusCode();
+        responseHeaders = responseEntity.getHeaders();
+
+        if (responseEntity.getStatusCode() == HttpStatus.NO_CONTENT) {
+            return null;
+        } else if (responseEntity.getStatusCode().is2xxSuccessful()) {
+            if (returnType == null) {
+                return null;
+            }
+            return responseEntity.getBody();
+        } else {
+            // The error handler built into the RestTemplate should handle 400 and 500 series errors.
+            throw new RestClientException("API returned " + statusCode + " and it wasn't handled by the RestTemplate error handler");
+        }
+    }
+    
+    /**
+     * Add headers to the request that is being built
+     * @param headers The headers to add
+     * @param requestBuilder The current request
+     */
+    protected void addHeadersToRequest(HttpHeaders headers, BodyBuilder requestBuilder) {
+        for (Entry<String, List<String>> entry : headers.entrySet()) {
+            List<String> values = entry.getValue();
+            for(String value : values) {
+                if (value != null) {
+                    requestBuilder.header(entry.getKey(), value);
+                }
+            }
+        }
+    }
+
+    /**
+     * Build the RestTemplate used to make HTTP requests.
+     * @return RestTemplate
+     */
+    protected RestTemplate buildRestTemplate() {
+        RestTemplate restTemplate = new RestTemplate();
+        // This allows us to read the response more than once - Necessary for debugging.
+        restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(restTemplate.getRequestFactory()));
+        return restTemplate;
+    }
+
+    /**
+     * Update query and header parameters based on authentication settings.
+     *
+     * @param authNames The authentications to apply
+     * @param queryParams The query parameters
+     * @param headerParams The header parameters
+     */
+    private void updateParamsForAuth(String[] authNames, MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        for (String authName : authNames) {
+            Authentication auth = authentications.get(authName);
+            if (auth == null) {
+                throw new RestClientException("Authentication undefined: " + authName);
+            }
+            auth.applyToParams(queryParams, headerParams);
+        }
+    }
+    
+    private class ApiClientHttpRequestInterceptor implements ClientHttpRequestInterceptor {
+        private final Log log = LogFactory.getLog(ApiClientHttpRequestInterceptor.class);
+
+        @Override
+        public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+            logRequest(request, body);
+            ClientHttpResponse response = execution.execute(request, body);
+            logResponse(response);
+            return response;
+        }
+
+        private void logRequest(HttpRequest request, byte[] body) throws UnsupportedEncodingException {
+            log.info("URI: " + request.getURI());
+            log.info("HTTP Method: " + request.getMethod());
+            log.info("HTTP Headers: " + headersToString(request.getHeaders()));
+            log.info("Request Body: " + new String(body, StandardCharsets.UTF_8));
+        }
+
+        private void logResponse(ClientHttpResponse response) throws IOException {
+            log.info("HTTP Status Code: " + response.getRawStatusCode());
+            log.info("Status Text: " + response.getStatusText());
+            log.info("HTTP Headers: " + headersToString(response.getHeaders()));
+            log.info("Response Body: " + bodyToString(response.getBody()));
+        }
+
+        private String headersToString(HttpHeaders headers) {
+            StringBuilder builder = new StringBuilder();
+            for(Entry<String, List<String>> entry : headers.entrySet()) {
+                builder.append(entry.getKey()).append("=[");
+                for(String value : entry.getValue()) {
+                    builder.append(value).append(",");
+                }
+                builder.setLength(builder.length() - 1); // Get rid of trailing comma
+                builder.append("],");
+            }
+            builder.setLength(builder.length() - 1); // Get rid of trailing comma
+            return builder.toString();
+        }
+        
+        private String bodyToString(InputStream body) throws IOException {
+            StringBuilder builder = new StringBuilder();
+            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(body, StandardCharsets.UTF_8));
+            String line = bufferedReader.readLine();
+            while (line != null) {
+                builder.append(line).append(System.lineSeparator());
+                line = bufferedReader.readLine();
+            }
+            bufferedReader.close();
+            return builder.toString();
+        }
+    }
+}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api.mustache
new file mode 100644
index 00000000000..0bcd442edff
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api.mustache
@@ -0,0 +1,103 @@
+package {{package}};
+
+import {{invokerPackage}}.ApiClient;
+
+{{#imports}}import {{import}};
+{{/imports}}
+
+{{^fullJavaUtil}}import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;{{/fullJavaUtil}}
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+{{>generatedAnnotation}}
+@Component("{{package}}.{{classname}}")
+{{#operations}}
+public class {{classname}} {
+    private ApiClient {{localVariablePrefix}}apiClient;
+
+    public {{classname}}() {
+        this(new ApiClient());
+    }
+
+    @Autowired
+    public {{classname}}(ApiClient apiClient) {
+        this.{{localVariablePrefix}}apiClient = apiClient;
+    }
+
+    public ApiClient getApiClient() {
+        return {{localVariablePrefix}}apiClient;
+    }
+
+    public void setApiClient(ApiClient apiClient) {
+        this.{{localVariablePrefix}}apiClient = apiClient;
+    }
+
+    {{#operation}}
+    /**
+     * {{summary}}
+     * {{notes}}
+{{#responses}}     * <p><b>{{code}}</b>{{#message}} - {{message}}{{/message}}
+{{/responses}}{{#allParams}}     * @param {{paramName}} {{description}}{{^description}}The {{paramName}} parameter{{/description}}
+{{/allParams}}{{#returnType}}     * @return {{returnType}}
+{{/returnType}}     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public {{#returnType}}{{{returnType}}} {{/returnType}}{{^returnType}}void {{/returnType}}{{operationId}}({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) throws RestClientException {
+        Object {{localVariablePrefix}}postBody = {{#bodyParam}}{{paramName}}{{/bodyParam}}{{^bodyParam}}null{{/bodyParam}};
+        {{#allParams}}{{#required}}
+        // verify the required parameter '{{paramName}}' is set
+        if ({{paramName}} == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter '{{paramName}}' when calling {{operationId}}");
+        }
+        {{/required}}{{/allParams}}{{#hasPathParams}}
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();{{#pathParams}}
+        uriVariables.put("{{baseName}}", {{{paramName}}});{{/pathParams}}{{/hasPathParams}}
+        String {{localVariablePrefix}}path = UriComponentsBuilder.fromPath("{{{path}}}"){{#hasPathParams}}.buildAndExpand(uriVariables){{/hasPathParams}}{{^hasPathParams}}.build(){{/hasPathParams}}.toUriString();
+        
+        final MultiValueMap<String, String> {{localVariablePrefix}}queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders {{localVariablePrefix}}headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> {{localVariablePrefix}}formParams = new LinkedMultiValueMap<String, Object>();{{#hasQueryParams}}
+        
+        {{#queryParams}}{{localVariablePrefix}}queryParams.putAll({{localVariablePrefix}}apiClient.parameterToMultiValueMap({{#collectionFormat}}ApiClient.CollectionFormat.valueOf("{{{collectionFormat}}}".toUpperCase()){{/collectionFormat}}{{^collectionFormat}}null{{/collectionFormat}}, "{{baseName}}", {{paramName}}));{{#hasMore}}
+        {{/hasMore}}{{/queryParams}}{{/hasQueryParams}}{{#hasHeaderParams}}
+        
+        {{#headerParams}}if ({{paramName}} != null)
+        {{localVariablePrefix}}headerParams.add("{{baseName}}", {{localVariablePrefix}}apiClient.parameterToString({{paramName}}));{{#hasMore}}
+        {{/hasMore}}{{/headerParams}}{{/hasHeaderParams}}{{#hasFormParams}}
+        
+        {{#formParams}}if ({{paramName}} != null)
+            {{localVariablePrefix}}formParams.add("{{baseName}}", {{#isFile}}new FileSystemResource({{paramName}}){{/isFile}}{{^isFile}}{{paramName}}{{/isFile}});{{#hasMore}}
+        {{/hasMore}}{{/formParams}}{{/hasFormParams}}
+
+        final String[] {{localVariablePrefix}}accepts = { {{#hasProduces}}
+            {{#produces}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/produces}}
+        {{/hasProduces}}};
+        final List<MediaType> {{localVariablePrefix}}accept = {{localVariablePrefix}}apiClient.selectHeaderAccept({{localVariablePrefix}}accepts);
+        final String[] {{localVariablePrefix}}contentTypes = { {{#hasConsumes}}
+            {{#consumes}}"{{mediaType}}"{{#hasMore}}, {{/hasMore}}{{/consumes}}
+        {{/hasConsumes}}};
+        final MediaType {{localVariablePrefix}}contentType = {{localVariablePrefix}}apiClient.selectHeaderContentType({{localVariablePrefix}}contentTypes);
+
+        String[] {{localVariablePrefix}}authNames = new String[] { {{#authMethods}}"{{name}}"{{#hasMore}}, {{/hasMore}}{{/authMethods}} };
+
+        {{#returnType}}ParameterizedTypeReference<{{{returnType}}}> {{localVariablePrefix}}returnType = new ParameterizedTypeReference<{{{returnType}}}>() {};{{/returnType}}{{^returnType}}ParameterizedTypeReference<Void> {{localVariablePrefix}}returnType = new ParameterizedTypeReference<Void>() {};{{/returnType}}
+        {{#returnType}}return {{/returnType}}{{localVariablePrefix}}apiClient.invokeAPI({{localVariablePrefix}}path, HttpMethod.{{httpMethod}}, {{localVariablePrefix}}queryParams, {{localVariablePrefix}}postBody, {{localVariablePrefix}}headerParams, {{localVariablePrefix}}formParams, {{localVariablePrefix}}accept, {{localVariablePrefix}}contentType, {{localVariablePrefix}}authNames, {{localVariablePrefix}}returnType);
+    }
+    {{/operation}}
+}
+{{/operations}}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api_test.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api_test.mustache
new file mode 100644
index 00000000000..127ac2defc5
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/api_test.mustache
@@ -0,0 +1,44 @@
+{{>licenseInfo}}
+
+package {{package}};
+
+{{#imports}}import {{import}};
+{{/imports}}
+import org.junit.Test;
+import org.junit.Ignore;
+
+{{^fullJavaUtil}}
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+{{/fullJavaUtil}}
+
+/**
+ * API tests for {{classname}}
+ */
+@Ignore
+public class {{classname}}Test {
+
+    private final {{classname}} api = new {{classname}}();
+
+    {{#operations}}{{#operation}}
+    /**
+     * {{summary}}
+     *
+     * {{notes}}
+     *
+     * @throws ApiException
+     *          if the Api call fails
+     */
+    @Test
+    public void {{operationId}}Test() {
+        {{#allParams}}
+        {{{dataType}}} {{paramName}} = null;
+        {{/allParams}}
+        {{#returnType}}{{{returnType}}} response = {{/returnType}}api.{{operationId}}({{#allParams}}{{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
+
+        // TODO: test validations
+    }
+    {{/operation}}{{/operations}}
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/ApiKeyAuth.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/ApiKeyAuth.mustache
new file mode 100644
index 00000000000..8b8c40fde75
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/ApiKeyAuth.mustache
@@ -0,0 +1,60 @@
+package {{invokerPackage}}.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+{{>generatedAnnotation}}
+public class ApiKeyAuth implements Authentication {
+    private final String location;
+    private final String paramName;
+
+    private String apiKey;
+    private String apiKeyPrefix;
+
+    public ApiKeyAuth(String location, String paramName) {
+        this.location = location;
+        this.paramName = paramName;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public String getParamName() {
+        return paramName;
+    }
+
+    public String getApiKey() {
+        return apiKey;
+    }
+
+    public void setApiKey(String apiKey) {
+        this.apiKey = apiKey;
+    }
+
+    public String getApiKeyPrefix() {
+        return apiKeyPrefix;
+    }
+
+    public void setApiKeyPrefix(String apiKeyPrefix) {
+        this.apiKeyPrefix = apiKeyPrefix;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (apiKey == null) {
+            return;
+        }
+        String value;
+        if (apiKeyPrefix != null) {
+            value = apiKeyPrefix + " " + apiKey;
+        } else {
+            value = apiKey;
+        }
+        if (location.equals("query")) {
+            queryParams.add(paramName, value);
+        } else if (location.equals("header")) {
+            headerParams.add(paramName, value);
+       }
+    }
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/Authentication.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/Authentication.mustache
new file mode 100644
index 00000000000..586de70836a
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/Authentication.mustache
@@ -0,0 +1,13 @@
+package {{invokerPackage}}.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+public interface Authentication {
+    /** 
+     * Apply authentication settings to header and / or query parameters.
+     * @param queryParams The query parameters for the request 
+     * @param headerParams The header parameters for the request
+     */
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams);
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/HttpBasicAuth.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/HttpBasicAuth.mustache
new file mode 100644
index 00000000000..5f535b3698a
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/HttpBasicAuth.mustache
@@ -0,0 +1,39 @@
+package {{invokerPackage}}.auth;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.Base64Utils;
+import org.springframework.util.MultiValueMap;
+
+{{>generatedAnnotation}}
+public class HttpBasicAuth implements Authentication {
+    private String username;
+    private String password;
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (username == null && password == null) {
+            return;
+        }
+        String str = (username == null ? "" : username) + ":" + (password == null ? "" : password);
+        headerParams.add(HttpHeaders.AUTHORIZATION, "Basic " + Base64Utils.encodeToString(str.getBytes(StandardCharsets.UTF_8)));
+    }
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuth.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuth.mustache
new file mode 100644
index 00000000000..fbb2f7f9c72
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuth.mustache
@@ -0,0 +1,24 @@
+package {{invokerPackage}}.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+{{>generatedAnnotation}}
+public class OAuth implements Authentication {
+    private String accessToken;
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (accessToken != null) {
+            headerParams.add(HttpHeaders.AUTHORIZATION, "Bearer " + accessToken);
+        }
+    }
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuthFlow.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuthFlow.mustache
new file mode 100644
index 00000000000..7ab35f6d890
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/auth/OAuthFlow.mustache
@@ -0,0 +1,5 @@
+package {{invokerPackage}}.auth;
+
+public enum OAuthFlow {
+    accessCode, implicit, password, application
+}
\ No newline at end of file
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/build.gradle.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/build.gradle.mustache
new file mode 100644
index 00000000000..687b83ff58f
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/build.gradle.mustache
@@ -0,0 +1,131 @@
+apply plugin: 'idea'
+apply plugin: 'eclipse'
+
+group = '{{groupId}}'
+version = '{{artifactVersion}}'
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.+'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
+    }
+}
+
+repositories {
+    jcenter()
+}
+
+
+if(hasProperty('target') && target == 'android') {
+
+    apply plugin: 'com.android.library'
+    apply plugin: 'com.github.dcendents.android-maven'
+    
+    android {
+        compileSdkVersion 23
+        buildToolsVersion '23.0.2'
+        defaultConfig {
+            minSdkVersion 14
+            targetSdkVersion 22
+        }
+        compileOptions {
+            {{#java8}}
+            sourceCompatibility JavaVersion.VERSION_1_8
+            targetCompatibility JavaVersion.VERSION_1_8
+            {{/java8}}
+            {{^java8}}
+            sourceCompatibility JavaVersion.VERSION_1_7
+            targetCompatibility JavaVersion.VERSION_1_7
+            {{/java8}}
+        }
+    
+        // Rename the aar correctly
+        libraryVariants.all { variant ->
+            variant.outputs.each { output ->
+                def outputFile = output.outputFile
+                if (outputFile != null && outputFile.name.endsWith('.aar')) {
+                    def fileName = "${project.name}-${variant.baseName}-${version}.aar"
+                    output.outputFile = new File(outputFile.parent, fileName)
+                }
+            }
+        }
+
+        dependencies {
+            provided 'javax.annotation:jsr250-api:1.0'
+        }
+    }
+    
+    afterEvaluate {
+        android.libraryVariants.all { variant ->
+            def task = project.tasks.create "jar${variant.name.capitalize()}", Jar
+            task.description = "Create jar artifact for ${variant.name}"
+            task.dependsOn variant.javaCompile
+            task.from variant.javaCompile.destinationDir
+            task.destinationDir = project.file("${project.buildDir}/outputs/jar")
+            task.archiveName = "${project.name}-${variant.baseName}-${version}.jar"
+            artifacts.add('archives', task);
+        }
+    }
+    
+    task sourcesJar(type: Jar) {
+        from android.sourceSets.main.java.srcDirs
+        classifier = 'sources'
+    }
+    
+    artifacts {
+        archives sourcesJar
+    }
+
+} else {
+
+    apply plugin: 'java'
+    apply plugin: 'maven'
+
+    {{#java8}}
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+    {{/java8}}
+    {{^java8}}
+    sourceCompatibility = JavaVersion.VERSION_1_7
+    targetCompatibility = JavaVersion.VERSION_1_7
+    {{/java8}}
+
+    install {
+        repositories.mavenInstaller {
+            pom.artifactId = '{{artifactId}}'
+        }
+    }
+    
+    task execute(type:JavaExec) {
+       main = System.getProperty('mainClass')
+       classpath = sourceSets.main.runtimeClasspath
+    }
+}
+
+ext {
+    swagger_annotations_version = "1.5.8"
+    jackson_version = "2.8.8"
+    spring_web_version = "4.3.7.RELEASE"
+    jodatime_version = "2.9.4"
+    junit_version = "4.12"
+}
+
+dependencies {
+    compile "io.swagger:swagger-annotations:$swagger_annotations_version"
+    compile "org.springframework:spring-web:$spring_web_version"
+    compile "com.fasterxml.jackson.core:jackson-core:$jackson_version"
+    compile "com.fasterxml.jackson.core:jackson-annotations:$jackson_version"
+    compile "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
+    compile "com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:$jackson_version"
+    {{#java8}}
+    compile "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version"
+    {{/java8}}
+    {{^java8}}
+    compile "com.fasterxml.jackson.datatype:jackson-datatype-joda:$jackson_version"
+    compile "joda-time:joda-time:$jodatime_version"
+    {{/java8}}
+    testCompile "junit:junit:$junit_version"
+}
diff --git a/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/pom.mustache b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/pom.mustache
new file mode 100644
index 00000000000..0122c5c9008
--- /dev/null
+++ b/modules/swagger-codegen/src/main/resources/Java/libraries/resttemplate/pom.mustache
@@ -0,0 +1,260 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>{{groupId}}</groupId>
+  <artifactId>{{artifactId}}</artifactId>
+  <packaging>jar</packaging>
+  <name>{{artifactId}}</name>
+  <version>{{artifactVersion}}</version>
+  <url>{{artifactUrl}}</url>
+  <description>{{artifactDescription}}</description>
+  <scm>
+    <connection>{{scmConnection}}</connection>
+    <developerConnection>{{scmDeveloperConnection}}</developerConnection>
+    <url>{{scmUrl}}</url>
+  </scm>
+  <prerequisites>
+    <maven>2.2.0</maven>
+  </prerequisites>
+
+  <licenses>
+    <license>
+      <name>{{licenseName}}</name>
+      <url>{{licenseUrl}}</url>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+
+  <developers>
+    <developer>
+      <name>{{developerName}}</name>
+      <email>{{developerEmail}}</email>
+      <organization>{{developerOrganization}}</organization>
+      <organizationUrl>{{developerOrganizationUrl}}</organizationUrl>
+    </developer>
+  </developers>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>2.12</version>
+        <configuration>
+          <systemProperties>
+            <property>
+              <name>loggerPath</name>
+              <value>conf/log4j.properties</value>
+            </property>
+          </systemProperties>
+          <argLine>-Xms512m -Xmx1500m</argLine>
+          <parallel>methods</parallel>
+          <forkMode>pertest</forkMode>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>copy-dependencies</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>${project.build.directory}/lib</outputDirectory>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <!-- attach test jar -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.2</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+              <goal>test-jar</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <version>1.10</version>
+        <executions>
+          <execution>
+            <id>add_sources</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/main/java</source>
+              </sources>
+            </configuration>
+          </execution>
+          <execution>
+            <id>add_test_sources</id>
+            <phase>generate-test-sources</phase>
+            <goals>
+              <goal>add-test-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/test/java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.6.1</version>
+        <configuration>
+          {{#java8}}
+          <source>1.8</source>
+          <target>1.8</target>
+          {{/java8}}
+          {{^java8}}
+          <source>1.7</source>
+          <target>1.7</target>
+          {{/java8}}
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>2.10.4</version>
+        <executions>
+          <execution>
+            <id>attach-javadocs</id>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <version>2.2.1</version>
+        <executions>
+          <execution>
+            <id>attach-sources</id>
+            <goals>
+              <goal>jar-no-fork</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+  <profiles>
+    <profile>
+      <id>sign-artifacts</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-gpg-plugin</artifactId>
+            <version>1.5</version>
+            <executions>
+              <execution>
+                <id>sign-artifacts</id>
+                <phase>verify</phase>
+                <goals>
+                  <goal>sign</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
+  <dependencies>
+    <dependency>
+      <groupId>io.swagger</groupId>
+      <artifactId>swagger-annotations</artifactId>
+      <version>${swagger-annotations-version}</version>
+    </dependency>
+
+    <!-- HTTP client: Spring RestTemplate -->
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-web</artifactId>
+      <version>${spring-web-version}</version>
+    </dependency>
+    
+    <!-- JSON processing: jackson -->
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-core</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-annotations</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.jaxrs</groupId>
+      <artifactId>jackson-jaxrs-json-provider</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    {{#java8}}
+    <dependency>
+      <groupId>com.fasterxml.jackson.datatype</groupId>
+      <artifactId>jackson-datatype-jsr310</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    {{/java8}}
+    {{^java8}}
+    <dependency>
+      <groupId>com.fasterxml.jackson.datatype</groupId>
+      <artifactId>jackson-datatype-joda</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>joda-time</groupId>
+      <artifactId>joda-time</artifactId>
+      <version>${jodatime-version}</version>
+    </dependency>
+    {{/java8}}
+
+    <!-- test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>${junit-version}</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <swagger-annotations-version>1.5.8</swagger-annotations-version>
+    <spring-web-version>4.3.7.RELEASE</spring-web-version>
+    <jackson-version>2.8.8</jackson-version>
+    {{^java8}}
+    <jodatime-version>2.9.4</jodatime-version>
+    {{/java8}}
+    <maven-plugin-version>1.0.0</maven-plugin-version>
+    <junit-version>4.12</junit-version>
+  </properties>
+</project>
diff --git a/modules/swagger-codegen/src/main/resources/Java/modelEnum.mustache b/modules/swagger-codegen/src/main/resources/Java/modelEnum.mustache
index baddbae19be..dcb5f4ef32a 100644
--- a/modules/swagger-codegen/src/main/resources/Java/modelEnum.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/modelEnum.mustache
@@ -1,5 +1,6 @@
 {{#jackson}}
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 {{/jackson}}
 
 /**
@@ -25,6 +26,9 @@ public enum {{#datatypeWithEnum}}{{{.}}}{{/datatypeWithEnum}}{{^datatypeWithEnum
   }
 
   @Override
+{{#jackson}}
+  @JsonValue
+{{/jackson}}
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/modules/swagger-codegen/src/main/resources/Java/modelInnerEnum.mustache b/modules/swagger-codegen/src/main/resources/Java/modelInnerEnum.mustache
index 160dfc09259..07c97d6e3d7 100644
--- a/modules/swagger-codegen/src/main/resources/Java/modelInnerEnum.mustache
+++ b/modules/swagger-codegen/src/main/resources/Java/modelInnerEnum.mustache
@@ -27,6 +27,9 @@
     }
 
     @Override
+{{#jackson}}
+    @JsonValue
+{{/jackson}}
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/pom.xml b/pom.xml
index 620cfa52d80..7f1438b9fe8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -806,6 +806,7 @@
                 <module>samples/client/petstore/java/retrofit2</module>
                 <module>samples/client/petstore/java/retrofit2rx</module>
                 <module>samples/client/petstore/jaxrs-cxf-client</module>
+                <module>samples/client/petstore/java/resttemplate</module>
                 <module>samples/client/petstore/javascript</module>
                 <module>samples/client/petstore/python</module>
                 <module>samples/client/petstore/scala</module>
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index d35dfb34b90..88490c60da1 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
index 3e7ac59fb6f..639ae9868b1 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index 01c8634bf47..bb07ca990bf 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index a5ce7de4b62..45567259b11 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayTest.java
index 5ddd9d6bd48..7f4e90a8e5f 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Capitalization.java
index 240e9e6f74c..50363d32e7b 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
index d753d3cbf94..6113e3deb23 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
index d562cf32dee..94a415b5337 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ClassModel.java
index bec4fd5fd99..91f7b71c7ee 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Client.java
index fd0108836b0..322f094f066 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
index 3dafad9e905..82ff0bf28bf 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumArrays.java
index 1adf4531029..737e133e408 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -41,6 +42,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -74,6 +76,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumClass.java
index c59531d4df0..5766e2d3e98 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -35,6 +36,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumTest.java
index ea3ee497177..d8b6c89e189 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -42,6 +43,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -108,6 +111,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
index 81e63c352ee..c2aa5f35fed 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index 96810b2da2a..5f340931766 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MapTest.java
index 52431108203..9a3ad6264a9 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 05749b4f3d0..9cd0ca678b8 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
index 4d183d4877d..c7437cd4bd5 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
index 9638574c47c..3dc02cbefe6 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
index 500ce3f5fc3..5d7ae14f6c4 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
index 1ebeccb2e01..368dc4d6d89 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/NumberOnly.java
index 6a340dcd08b..ab790ac11e0 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
index 7f89c63b447..584904beb71 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.joda.time.DateTime;
@@ -54,6 +55,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/OuterEnum.java
index d71d45686a8..c10da3dc438 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -35,6 +36,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
index c99528a28c1..27861fcd13f 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -60,6 +61,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 9e60d1fec2a..2bea40f1c2e 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
index 96baa57047b..561e8bd9a96 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
index 03036de0700..205eb6fef17 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
index 8839299f45c..b739854d867 100644
--- a/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/feign/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index d35dfb34b90..88490c60da1 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Animal.java
index 3e7ac59fb6f..639ae9868b1 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index 01c8634bf47..bb07ca990bf 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index a5ce7de4b62..45567259b11 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayTest.java
index 5ddd9d6bd48..7f4e90a8e5f 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Capitalization.java
index 240e9e6f74c..50363d32e7b 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Cat.java
index d753d3cbf94..6113e3deb23 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Category.java
index d562cf32dee..94a415b5337 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ClassModel.java
index bec4fd5fd99..91f7b71c7ee 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Client.java
index fd0108836b0..322f094f066 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Dog.java
index 3dafad9e905..82ff0bf28bf 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumArrays.java
index 1adf4531029..737e133e408 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -41,6 +42,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -74,6 +76,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumClass.java
index c59531d4df0..5766e2d3e98 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -35,6 +36,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumTest.java
index ea3ee497177..d8b6c89e189 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -42,6 +43,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -108,6 +111,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/FormatTest.java
index 81e63c352ee..c2aa5f35fed 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index 96810b2da2a..5f340931766 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MapTest.java
index 52431108203..9a3ad6264a9 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 05749b4f3d0..9cd0ca678b8 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Model200Response.java
index 4d183d4877d..c7437cd4bd5 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelApiResponse.java
index 9638574c47c..3dc02cbefe6 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelReturn.java
index 500ce3f5fc3..5d7ae14f6c4 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Name.java
index 1ebeccb2e01..368dc4d6d89 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/NumberOnly.java
index 6a340dcd08b..ab790ac11e0 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Order.java
index 7f89c63b447..584904beb71 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.joda.time.DateTime;
@@ -54,6 +55,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/OuterEnum.java
index d71d45686a8..c10da3dc438 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -35,6 +36,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Pet.java
index c99528a28c1..27861fcd13f 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -60,6 +61,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 9e60d1fec2a..2bea40f1c2e 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/SpecialModelName.java
index 96baa57047b..561e8bd9a96 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Tag.java
index 03036de0700..205eb6fef17 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/User.java
index 8839299f45c..b739854d867 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index be2c11fff74..7c0587d3882 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Animal.java
index 094faff9a33..8600ef9ed80 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index c07ad8757e1..a95f356f6aa 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index 48671f1134a..efbf7672c53 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayTest.java
index 3077818d0c4..83f997503f5 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Capitalization.java
index 5f21318820d..36436805be6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Cat.java
index 9810941ab3c..ea4a0e3e8d6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Category.java
index bab0deb78a6..301e2e03460 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ClassModel.java
index e83dfe06b54..5e62322e020 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Client.java
index 94b55364ae1..010409d01c6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Dog.java
index 86f53267ca4..9289e985bdc 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumArrays.java
index d28912b212c..70e3eef3bea 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -41,6 +42,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -74,6 +76,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumClass.java
index 1732c2f241d..f6752b251fa 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -35,6 +36,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumTest.java
index d1e298d6625..657f533b585 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -42,6 +43,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -108,6 +111,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/FormatTest.java
index e530b8360c8..78b6cd6b0f2 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index 85a2b788ef0..e80ea1c7a79 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MapTest.java
index cd9da863ad3..338033b5bc6 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 888178fc6a3..6965728b56b 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Model200Response.java
index 03dc410f058..357df5d3b97 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelApiResponse.java
index daa1f75b5c7..3dbb49b4160 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelReturn.java
index 299742d50f2..0ad6febfb6d 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Name.java
index ff901a298a6..169565dc2b9 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/NumberOnly.java
index 75b2331d52b..8a440a83cda 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Order.java
index 30648dbb7ff..6cb192a6bea 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.joda.time.DateTime;
@@ -54,6 +55,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/OuterEnum.java
index 75577d61434..4e92b038566 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -35,6 +36,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Pet.java
index d48d60ddef3..b1193cad6ec 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -60,6 +61,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 5aa0e9275a2..b9c02c94328 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/SpecialModelName.java
index 527fc647eaf..d193875218c 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Tag.java
index 94764acde85..8dde6195eb4 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/User.java
index 5bedd26f272..8b75cbc6363 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import org.apache.commons.lang3.ObjectUtils;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index d35dfb34b90..88490c60da1 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Animal.java
index 3e7ac59fb6f..639ae9868b1 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index 01c8634bf47..bb07ca990bf 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index a5ce7de4b62..45567259b11 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayTest.java
index 5ddd9d6bd48..7f4e90a8e5f 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Capitalization.java
index 240e9e6f74c..50363d32e7b 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Cat.java
index d753d3cbf94..6113e3deb23 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Category.java
index d562cf32dee..94a415b5337 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ClassModel.java
index bec4fd5fd99..91f7b71c7ee 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Client.java
index fd0108836b0..322f094f066 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Dog.java
index 3dafad9e905..82ff0bf28bf 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumArrays.java
index 1adf4531029..737e133e408 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -41,6 +42,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -74,6 +76,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumClass.java
index c59531d4df0..5766e2d3e98 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -35,6 +36,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumTest.java
index ea3ee497177..d8b6c89e189 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -42,6 +43,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -108,6 +111,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/FormatTest.java
index cac28a9d336..ca0e256bd4a 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index 96810b2da2a..5f340931766 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MapTest.java
index 52431108203..9a3ad6264a9 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index c6488007e18..7552863e525 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Model200Response.java
index 4d183d4877d..c7437cd4bd5 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelApiResponse.java
index 9638574c47c..3dc02cbefe6 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelReturn.java
index 500ce3f5fc3..5d7ae14f6c4 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Name.java
index 1ebeccb2e01..368dc4d6d89 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/NumberOnly.java
index 6a340dcd08b..ab790ac11e0 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Order.java
index 296fddfe10d..0746717bdf4 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.time.OffsetDateTime;
@@ -54,6 +55,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/OuterEnum.java
index d71d45686a8..c10da3dc438 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -35,6 +36,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Pet.java
index c99528a28c1..27861fcd13f 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -60,6 +61,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 9e60d1fec2a..2bea40f1c2e 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/SpecialModelName.java
index 96baa57047b..561e8bd9a96 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Tag.java
index 03036de0700..205eb6fef17 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/User.java
index 8839299f45c..b739854d867 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index d35dfb34b90..88490c60da1 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
index 3e7ac59fb6f..639ae9868b1 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index 01c8634bf47..bb07ca990bf 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index a5ce7de4b62..45567259b11 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayTest.java
index 5ddd9d6bd48..7f4e90a8e5f 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Capitalization.java
index 240e9e6f74c..50363d32e7b 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
index d753d3cbf94..6113e3deb23 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
index d562cf32dee..94a415b5337 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ClassModel.java
index bec4fd5fd99..91f7b71c7ee 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Client.java
index fd0108836b0..322f094f066 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
index 3dafad9e905..82ff0bf28bf 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumArrays.java
index 1adf4531029..737e133e408 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -41,6 +42,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -74,6 +76,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumClass.java
index c59531d4df0..5766e2d3e98 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -35,6 +36,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumTest.java
index ea3ee497177..d8b6c89e189 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -42,6 +43,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -108,6 +111,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
index 81e63c352ee..c2aa5f35fed 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index 96810b2da2a..5f340931766 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MapTest.java
index 52431108203..9a3ad6264a9 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -45,6 +46,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 05749b4f3d0..9cd0ca678b8 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
index 4d183d4877d..c7437cd4bd5 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
index 9638574c47c..3dc02cbefe6 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
index 500ce3f5fc3..5d7ae14f6c4 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
index 1ebeccb2e01..368dc4d6d89 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/NumberOnly.java
index 6a340dcd08b..ab790ac11e0 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
index 7f89c63b447..584904beb71 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.joda.time.DateTime;
@@ -54,6 +55,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/OuterEnum.java
index d71d45686a8..c10da3dc438 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -35,6 +36,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
index c99528a28c1..27861fcd13f 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -60,6 +61,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 9e60d1fec2a..2bea40f1c2e 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
index 96baa57047b..561e8bd9a96 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
index 03036de0700..205eb6fef17 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
index 8839299f45c..b739854d867 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
diff --git a/samples/client/petstore/java/resttemplate/.gitignore b/samples/client/petstore/java/resttemplate/.gitignore
new file mode 100644
index 00000000000..a530464afa1
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/.gitignore
@@ -0,0 +1,21 @@
+*.class
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# exclude jar for gradle wrapper
+!gradle/wrapper/*.jar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# build files
+**/target
+target
+.gradle
+build
diff --git a/samples/client/petstore/java/resttemplate/.swagger-codegen-ignore b/samples/client/petstore/java/resttemplate/.swagger-codegen-ignore
new file mode 100644
index 00000000000..c5fa491b4c5
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/.swagger-codegen-ignore
@@ -0,0 +1,23 @@
+# Swagger Codegen Ignore
+# Generated by swagger-codegen https://github.com/swagger-api/swagger-codegen
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell Swagger Codgen to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
diff --git a/samples/client/petstore/java/resttemplate/.travis.yml b/samples/client/petstore/java/resttemplate/.travis.yml
new file mode 100644
index 00000000000..70cb81a67c2
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/.travis.yml
@@ -0,0 +1,17 @@
+#
+# Generated by: https://github.com/swagger-api/swagger-codegen.git
+#
+language: java
+jdk:
+  - oraclejdk8
+  - oraclejdk7
+before_install:
+  # ensure gradlew has proper permission
+  - chmod a+x ./gradlew
+script:
+  # test using maven
+  - mvn test
+  # uncomment below to test using gradle
+  # - gradle test
+  # uncomment below to test using sbt 
+  # - sbt test
diff --git a/samples/client/petstore/java/resttemplate/README.md b/samples/client/petstore/java/resttemplate/README.md
new file mode 100644
index 00000000000..7edbcde179b
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/README.md
@@ -0,0 +1,154 @@
+# swagger-petstore-resttemplate
+
+## Requirements
+
+Building the API client library requires [Maven](https://maven.apache.org/) to be installed.
+
+## Installation
+
+To install the API client library to your local Maven repository, simply execute:
+
+```shell
+mvn install
+```
+
+To deploy it to a remote Maven repository instead, configure the settings of the repository and execute:
+
+```shell
+mvn deploy
+```
+
+Refer to the [official documentation](https://maven.apache.org/plugins/maven-deploy-plugin/usage.html) for more information.
+
+### Maven users
+
+Add this dependency to your project's POM:
+
+```xml
+<dependency>
+    <groupId>io.swagger</groupId>
+    <artifactId>swagger-petstore-resttemplate</artifactId>
+    <version>1.0.0</version>
+    <scope>compile</scope>
+</dependency>
+```
+
+### Gradle users
+
+Add this dependency to your project's build file:
+
+```groovy
+compile "io.swagger:swagger-petstore-resttemplate:1.0.0"
+```
+
+### Others
+
+At first generate the JAR by executing:
+
+    mvn package
+
+Then manually install the following JARs:
+
+* target/swagger-petstore-resttemplate-1.0.0.jar
+* target/lib/*.jar
+
+## Getting Started
+
+Please follow the [installation](#installation) instruction and execute the following Java code:
+
+```java
+
+import io.swagger.client.*;
+import io.swagger.client.auth.*;
+import io.swagger.client.model.*;
+import io.swagger.client.api.PetApi;
+
+import java.io.File;
+import java.util.*;
+
+public class PetApiExample {
+
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi();
+        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        try {
+            apiInstance.addPet(body);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#addPet");
+            e.printStackTrace();
+        }
+    }
+}
+
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://petstore.swagger.io/v2*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*PetApi* | [**addPet**](docs/PetApi.md#addPet) | **POST** /pet | Add a new pet to the store
+*PetApi* | [**deletePet**](docs/PetApi.md#deletePet) | **DELETE** /pet/{petId} | Deletes a pet
+*PetApi* | [**findPetsByStatus**](docs/PetApi.md#findPetsByStatus) | **GET** /pet/findByStatus | Finds Pets by status
+*PetApi* | [**findPetsByTags**](docs/PetApi.md#findPetsByTags) | **GET** /pet/findByTags | Finds Pets by tags
+*PetApi* | [**getPetById**](docs/PetApi.md#getPetById) | **GET** /pet/{petId} | Find pet by ID
+*PetApi* | [**updatePet**](docs/PetApi.md#updatePet) | **PUT** /pet | Update an existing pet
+*PetApi* | [**updatePetWithForm**](docs/PetApi.md#updatePetWithForm) | **POST** /pet/{petId} | Updates a pet in the store with form data
+*PetApi* | [**uploadFile**](docs/PetApi.md#uploadFile) | **POST** /pet/{petId}/uploadImage | uploads an image
+*StoreApi* | [**deleteOrder**](docs/StoreApi.md#deleteOrder) | **DELETE** /store/order/{orderId} | Delete purchase order by ID
+*StoreApi* | [**getInventory**](docs/StoreApi.md#getInventory) | **GET** /store/inventory | Returns pet inventories by status
+*StoreApi* | [**getOrderById**](docs/StoreApi.md#getOrderById) | **GET** /store/order/{orderId} | Find purchase order by ID
+*StoreApi* | [**placeOrder**](docs/StoreApi.md#placeOrder) | **POST** /store/order | Place an order for a pet
+*UserApi* | [**createUser**](docs/UserApi.md#createUser) | **POST** /user | Create user
+*UserApi* | [**createUsersWithArrayInput**](docs/UserApi.md#createUsersWithArrayInput) | **POST** /user/createWithArray | Creates list of users with given input array
+*UserApi* | [**createUsersWithListInput**](docs/UserApi.md#createUsersWithListInput) | **POST** /user/createWithList | Creates list of users with given input array
+*UserApi* | [**deleteUser**](docs/UserApi.md#deleteUser) | **DELETE** /user/{username} | Delete user
+*UserApi* | [**getUserByName**](docs/UserApi.md#getUserByName) | **GET** /user/{username} | Get user by user name
+*UserApi* | [**loginUser**](docs/UserApi.md#loginUser) | **GET** /user/login | Logs user into the system
+*UserApi* | [**logoutUser**](docs/UserApi.md#logoutUser) | **GET** /user/logout | Logs out current logged in user session
+*UserApi* | [**updateUser**](docs/UserApi.md#updateUser) | **PUT** /user/{username} | Updated user
+
+
+## Documentation for Models
+
+ - [Category](docs/Category.md)
+ - [Order](docs/Order.md)
+ - [Pet](docs/Pet.md)
+ - [Tag](docs/Tag.md)
+ - [User](docs/User.md)
+
+
+## Documentation for Authorization
+
+Authentication schemes defined for the API:
+### petstore_auth
+
+- **Type**: OAuth
+- **Flow**: implicit
+- **Authorizatoin URL**: http://petstore.swagger.io/api/oauth/dialog
+- **Scopes**: 
+  - write:pets: modify pets in your account
+  - read:pets: read your pets
+
+### api_key
+
+- **Type**: API key
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
+
+## Recommendation
+
+It's recommended to create an instance of `ApiClient` per thread in a multithreaded environment to avoid any potential issue.
+
+## Author
+
+apiteam@wordnik.com
+
diff --git a/samples/client/petstore/java/resttemplate/build.gradle b/samples/client/petstore/java/resttemplate/build.gradle
new file mode 100644
index 00000000000..ab711893226
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/build.gradle
@@ -0,0 +1,114 @@
+apply plugin: 'idea'
+apply plugin: 'eclipse'
+
+group = 'io.swagger'
+version = '1.0.0'
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.+'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
+    }
+}
+
+repositories {
+    jcenter()
+}
+
+
+if(hasProperty('target') && target == 'android') {
+
+    apply plugin: 'com.android.library'
+    apply plugin: 'com.github.dcendents.android-maven'
+    
+    android {
+        compileSdkVersion 23
+        buildToolsVersion '23.0.2'
+        defaultConfig {
+            minSdkVersion 14
+            targetSdkVersion 22
+        }
+        compileOptions {
+            sourceCompatibility JavaVersion.VERSION_1_7
+            targetCompatibility JavaVersion.VERSION_1_7
+        }
+    
+        // Rename the aar correctly
+        libraryVariants.all { variant ->
+            variant.outputs.each { output ->
+                def outputFile = output.outputFile
+                if (outputFile != null && outputFile.name.endsWith('.aar')) {
+                    def fileName = "${project.name}-${variant.baseName}-${version}.aar"
+                    output.outputFile = new File(outputFile.parent, fileName)
+                }
+            }
+        }
+
+        dependencies {
+            provided 'javax.annotation:jsr250-api:1.0'
+        }
+    }
+    
+    afterEvaluate {
+        android.libraryVariants.all { variant ->
+            def task = project.tasks.create "jar${variant.name.capitalize()}", Jar
+            task.description = "Create jar artifact for ${variant.name}"
+            task.dependsOn variant.javaCompile
+            task.from variant.javaCompile.destinationDir
+            task.destinationDir = project.file("${project.buildDir}/outputs/jar")
+            task.archiveName = "${project.name}-${variant.baseName}-${version}.jar"
+            artifacts.add('archives', task);
+        }
+    }
+    
+    task sourcesJar(type: Jar) {
+        from android.sourceSets.main.java.srcDirs
+        classifier = 'sources'
+    }
+    
+    artifacts {
+        archives sourcesJar
+    }
+
+} else {
+
+    apply plugin: 'java'
+    apply plugin: 'maven'
+
+    sourceCompatibility = JavaVersion.VERSION_1_7
+    targetCompatibility = JavaVersion.VERSION_1_7
+
+    install {
+        repositories.mavenInstaller {
+            pom.artifactId = 'swagger-petstore-resttemplate'
+        }
+    }
+    
+    task execute(type:JavaExec) {
+       main = System.getProperty('mainClass')
+       classpath = sourceSets.main.runtimeClasspath
+    }
+}
+
+ext {
+    swagger_annotations_version = "1.5.8"
+    jackson_version = "2.8.8"
+    spring_web_version = "4.3.7.RELEASE"
+    jodatime_version = "2.9.4"
+    junit_version = "4.12"
+}
+
+dependencies {
+    compile "io.swagger:swagger-annotations:$swagger_annotations_version"
+    compile "org.springframework:spring-web:$spring_web_version"
+    compile "com.fasterxml.jackson.core:jackson-core:$jackson_version"
+    compile "com.fasterxml.jackson.core:jackson-annotations:$jackson_version"
+    compile "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
+    compile "com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:$jackson_version"
+    compile "com.fasterxml.jackson.datatype:jackson-datatype-joda:$jackson_version"
+    compile "joda-time:joda-time:$jodatime_version"
+    testCompile "junit:junit:$junit_version"
+}
diff --git a/samples/client/petstore/java/resttemplate/build.sbt b/samples/client/petstore/java/resttemplate/build.sbt
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/samples/client/petstore/java/resttemplate/docs/AdditionalPropertiesClass.md b/samples/client/petstore/java/resttemplate/docs/AdditionalPropertiesClass.md
new file mode 100644
index 00000000000..0437c4dd8cc
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/AdditionalPropertiesClass.md
@@ -0,0 +1,11 @@
+
+# AdditionalPropertiesClass
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**mapProperty** | **Map&lt;String, String&gt;** |  |  [optional]
+**mapOfMapProperty** | [**Map&lt;String, Map&lt;String, String&gt;&gt;**](Map.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Animal.md b/samples/client/petstore/java/resttemplate/docs/Animal.md
new file mode 100644
index 00000000000..b3f325c3524
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Animal.md
@@ -0,0 +1,11 @@
+
+# Animal
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**className** | **String** |  | 
+**color** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/AnimalFarm.md b/samples/client/petstore/java/resttemplate/docs/AnimalFarm.md
new file mode 100644
index 00000000000..c7c7f1ddcce
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/AnimalFarm.md
@@ -0,0 +1,9 @@
+
+# AnimalFarm
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ArrayOfArrayOfNumberOnly.md b/samples/client/petstore/java/resttemplate/docs/ArrayOfArrayOfNumberOnly.md
new file mode 100644
index 00000000000..77292549927
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ArrayOfArrayOfNumberOnly.md
@@ -0,0 +1,10 @@
+
+# ArrayOfArrayOfNumberOnly
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**arrayArrayNumber** | [**List&lt;List&lt;BigDecimal&gt;&gt;**](List.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ArrayOfNumberOnly.md b/samples/client/petstore/java/resttemplate/docs/ArrayOfNumberOnly.md
new file mode 100644
index 00000000000..e8cc4cd36dc
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ArrayOfNumberOnly.md
@@ -0,0 +1,10 @@
+
+# ArrayOfNumberOnly
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**arrayNumber** | [**List&lt;BigDecimal&gt;**](BigDecimal.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ArrayTest.md b/samples/client/petstore/java/resttemplate/docs/ArrayTest.md
new file mode 100644
index 00000000000..9feee16427f
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ArrayTest.md
@@ -0,0 +1,12 @@
+
+# ArrayTest
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**arrayOfString** | **List&lt;String&gt;** |  |  [optional]
+**arrayArrayOfInteger** | [**List&lt;List&lt;Long&gt;&gt;**](List.md) |  |  [optional]
+**arrayArrayOfModel** | [**List&lt;List&lt;ReadOnlyFirst&gt;&gt;**](List.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Capitalization.md b/samples/client/petstore/java/resttemplate/docs/Capitalization.md
new file mode 100644
index 00000000000..0f3064c1996
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Capitalization.md
@@ -0,0 +1,15 @@
+
+# Capitalization
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**smallCamel** | **String** |  |  [optional]
+**capitalCamel** | **String** |  |  [optional]
+**smallSnake** | **String** |  |  [optional]
+**capitalSnake** | **String** |  |  [optional]
+**scAETHFlowPoints** | **String** |  |  [optional]
+**ATT_NAME** | **String** | Name of the pet  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Cat.md b/samples/client/petstore/java/resttemplate/docs/Cat.md
new file mode 100644
index 00000000000..6e9f71ce7dd
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Cat.md
@@ -0,0 +1,10 @@
+
+# Cat
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**declawed** | **Boolean** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Category.md b/samples/client/petstore/java/resttemplate/docs/Category.md
new file mode 100644
index 00000000000..e2df0803278
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Category.md
@@ -0,0 +1,11 @@
+
+# Category
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **Long** |  |  [optional]
+**name** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ClassModel.md b/samples/client/petstore/java/resttemplate/docs/ClassModel.md
new file mode 100644
index 00000000000..64f880c8786
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ClassModel.md
@@ -0,0 +1,10 @@
+
+# ClassModel
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**propertyClass** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Client.md b/samples/client/petstore/java/resttemplate/docs/Client.md
new file mode 100644
index 00000000000..5c490ea166c
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Client.md
@@ -0,0 +1,10 @@
+
+# Client
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**client** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Dog.md b/samples/client/petstore/java/resttemplate/docs/Dog.md
new file mode 100644
index 00000000000..ac7cea323ff
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Dog.md
@@ -0,0 +1,10 @@
+
+# Dog
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**breed** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/EnumArrays.md b/samples/client/petstore/java/resttemplate/docs/EnumArrays.md
new file mode 100644
index 00000000000..4dddc0bfd27
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/EnumArrays.md
@@ -0,0 +1,27 @@
+
+# EnumArrays
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**justSymbol** | [**JustSymbolEnum**](#JustSymbolEnum) |  |  [optional]
+**arrayEnum** | [**List&lt;ArrayEnumEnum&gt;**](#List&lt;ArrayEnumEnum&gt;) |  |  [optional]
+
+
+<a name="JustSymbolEnum"></a>
+## Enum: JustSymbolEnum
+Name | Value
+---- | -----
+GREATER_THAN_OR_EQUAL_TO | &quot;&gt;&#x3D;&quot;
+DOLLAR | &quot;$&quot;
+
+
+<a name="List<ArrayEnumEnum>"></a>
+## Enum: List&lt;ArrayEnumEnum&gt;
+Name | Value
+---- | -----
+FISH | &quot;fish&quot;
+CRAB | &quot;crab&quot;
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/EnumClass.md b/samples/client/petstore/java/resttemplate/docs/EnumClass.md
new file mode 100644
index 00000000000..c746edc3cb1
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/EnumClass.md
@@ -0,0 +1,14 @@
+
+# EnumClass
+
+## Enum
+
+
+* `_ABC` (value: `"_abc"`)
+
+* `_EFG` (value: `"-efg"`)
+
+* `_XYZ_` (value: `"(xyz)"`)
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/EnumTest.md b/samples/client/petstore/java/resttemplate/docs/EnumTest.md
new file mode 100644
index 00000000000..08fee344882
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/EnumTest.md
@@ -0,0 +1,38 @@
+
+# EnumTest
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**enumString** | [**EnumStringEnum**](#EnumStringEnum) |  |  [optional]
+**enumInteger** | [**EnumIntegerEnum**](#EnumIntegerEnum) |  |  [optional]
+**enumNumber** | [**EnumNumberEnum**](#EnumNumberEnum) |  |  [optional]
+**outerEnum** | [**OuterEnum**](OuterEnum.md) |  |  [optional]
+
+
+<a name="EnumStringEnum"></a>
+## Enum: EnumStringEnum
+Name | Value
+---- | -----
+UPPER | &quot;UPPER&quot;
+LOWER | &quot;lower&quot;
+EMPTY | &quot;&quot;
+
+
+<a name="EnumIntegerEnum"></a>
+## Enum: EnumIntegerEnum
+Name | Value
+---- | -----
+NUMBER_1 | 1
+NUMBER_MINUS_1 | -1
+
+
+<a name="EnumNumberEnum"></a>
+## Enum: EnumNumberEnum
+Name | Value
+---- | -----
+NUMBER_1_DOT_1 | 1.1
+NUMBER_MINUS_1_DOT_2 | -1.2
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/FakeApi.md b/samples/client/petstore/java/resttemplate/docs/FakeApi.md
new file mode 100644
index 00000000000..f4a6d1c0eb3
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/FakeApi.md
@@ -0,0 +1,193 @@
+# FakeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**testClientModel**](FakeApi.md#testClientModel) | **PATCH** /fake | To test \&quot;client\&quot; model
+[**testEndpointParameters**](FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+[**testEnumParameters**](FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters
+
+
+<a name="testClientModel"></a>
+# **testClientModel**
+> Client testClientModel(body)
+
+To test \&quot;client\&quot; model
+
+To test \&quot;client\&quot; model
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.FakeApi;
+
+
+FakeApi apiInstance = new FakeApi();
+Client body = new Client(); // Client | client model
+try {
+    Client result = apiInstance.testClientModel(body);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling FakeApi#testClientModel");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Client**](Client.md)| client model |
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+<a name="testEndpointParameters"></a>
+# **testEndpointParameters**
+> testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, paramCallback)
+
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.FakeApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure HTTP basic authorization: http_basic_test
+HttpBasicAuth http_basic_test = (HttpBasicAuth) defaultClient.getAuthentication("http_basic_test");
+http_basic_test.setUsername("YOUR USERNAME");
+http_basic_test.setPassword("YOUR PASSWORD");
+
+FakeApi apiInstance = new FakeApi();
+BigDecimal number = new BigDecimal(); // BigDecimal | None
+Double _double = 3.4D; // Double | None
+String patternWithoutDelimiter = "patternWithoutDelimiter_example"; // String | None
+byte[] _byte = B; // byte[] | None
+Integer integer = 56; // Integer | None
+Integer int32 = 56; // Integer | None
+Long int64 = 789L; // Long | None
+Float _float = 3.4F; // Float | None
+String string = "string_example"; // String | None
+byte[] binary = B; // byte[] | None
+LocalDate date = new LocalDate(); // LocalDate | None
+DateTime dateTime = new DateTime(); // DateTime | None
+String password = "password_example"; // String | None
+String paramCallback = "paramCallback_example"; // String | None
+try {
+    apiInstance.testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, paramCallback);
+} catch (ApiException e) {
+    System.err.println("Exception when calling FakeApi#testEndpointParameters");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **number** | **BigDecimal**| None |
+ **_double** | **Double**| None |
+ **patternWithoutDelimiter** | **String**| None |
+ **_byte** | **byte[]**| None |
+ **integer** | **Integer**| None | [optional]
+ **int32** | **Integer**| None | [optional]
+ **int64** | **Long**| None | [optional]
+ **_float** | **Float**| None | [optional]
+ **string** | **String**| None | [optional]
+ **binary** | **byte[]**| None | [optional]
+ **date** | **LocalDate**| None | [optional]
+ **dateTime** | **DateTime**| None | [optional]
+ **password** | **String**| None | [optional]
+ **paramCallback** | **String**| None | [optional]
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[http_basic_test](../README.md#http_basic_test)
+
+### HTTP request headers
+
+ - **Content-Type**: application/xml; charset=utf-8, application/json; charset=utf-8
+ - **Accept**: application/xml; charset=utf-8, application/json; charset=utf-8
+
+<a name="testEnumParameters"></a>
+# **testEnumParameters**
+> testEnumParameters(enumFormStringArray, enumFormString, enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble)
+
+To test enum parameters
+
+To test enum parameters
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.FakeApi;
+
+
+FakeApi apiInstance = new FakeApi();
+List<String> enumFormStringArray = Arrays.asList("enumFormStringArray_example"); // List<String> | Form parameter enum test (string array)
+String enumFormString = "-efg"; // String | Form parameter enum test (string)
+List<String> enumHeaderStringArray = Arrays.asList("enumHeaderStringArray_example"); // List<String> | Header parameter enum test (string array)
+String enumHeaderString = "-efg"; // String | Header parameter enum test (string)
+List<String> enumQueryStringArray = Arrays.asList("enumQueryStringArray_example"); // List<String> | Query parameter enum test (string array)
+String enumQueryString = "-efg"; // String | Query parameter enum test (string)
+Integer enumQueryInteger = 56; // Integer | Query parameter enum test (double)
+Double enumQueryDouble = 3.4D; // Double | Query parameter enum test (double)
+try {
+    apiInstance.testEnumParameters(enumFormStringArray, enumFormString, enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble);
+} catch (ApiException e) {
+    System.err.println("Exception when calling FakeApi#testEnumParameters");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **enumFormStringArray** | [**List&lt;String&gt;**](String.md)| Form parameter enum test (string array) | [optional] [enum: >, $]
+ **enumFormString** | **String**| Form parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)]
+ **enumHeaderStringArray** | [**List&lt;String&gt;**](String.md)| Header parameter enum test (string array) | [optional] [enum: >, $]
+ **enumHeaderString** | **String**| Header parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)]
+ **enumQueryStringArray** | [**List&lt;String&gt;**](String.md)| Query parameter enum test (string array) | [optional] [enum: >, $]
+ **enumQueryString** | **String**| Query parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)]
+ **enumQueryInteger** | **Integer**| Query parameter enum test (double) | [optional] [enum: 1, -2]
+ **enumQueryDouble** | **Double**| Query parameter enum test (double) | [optional] [enum: 1.1, -1.2]
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: */*
+ - **Accept**: */*
+
diff --git a/samples/client/petstore/java/resttemplate/docs/FormatTest.md b/samples/client/petstore/java/resttemplate/docs/FormatTest.md
new file mode 100644
index 00000000000..06bed417232
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/FormatTest.md
@@ -0,0 +1,22 @@
+
+# FormatTest
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**integer** | **Integer** |  |  [optional]
+**int32** | **Integer** |  |  [optional]
+**int64** | **Long** |  |  [optional]
+**number** | [**BigDecimal**](BigDecimal.md) |  | 
+**_float** | **Float** |  |  [optional]
+**_double** | **Double** |  |  [optional]
+**string** | **String** |  |  [optional]
+**_byte** | **byte[]** |  | 
+**binary** | **byte[]** |  |  [optional]
+**date** | [**LocalDate**](LocalDate.md) |  | 
+**dateTime** | [**DateTime**](DateTime.md) |  |  [optional]
+**uuid** | [**UUID**](UUID.md) |  |  [optional]
+**password** | **String** |  | 
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/HasOnlyReadOnly.md b/samples/client/petstore/java/resttemplate/docs/HasOnlyReadOnly.md
new file mode 100644
index 00000000000..c1d0aac5672
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/HasOnlyReadOnly.md
@@ -0,0 +1,11 @@
+
+# HasOnlyReadOnly
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**bar** | **String** |  |  [optional]
+**foo** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/MapTest.md b/samples/client/petstore/java/resttemplate/docs/MapTest.md
new file mode 100644
index 00000000000..714a97a40d9
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/MapTest.md
@@ -0,0 +1,19 @@
+
+# MapTest
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**mapMapOfString** | [**Map&lt;String, Map&lt;String, String&gt;&gt;**](Map.md) |  |  [optional]
+**mapOfEnumString** | [**Map&lt;String, InnerEnum&gt;**](#Map&lt;String, InnerEnum&gt;) |  |  [optional]
+
+
+<a name="Map<String, InnerEnum>"></a>
+## Enum: Map&lt;String, InnerEnum&gt;
+Name | Value
+---- | -----
+UPPER | &quot;UPPER&quot;
+LOWER | &quot;lower&quot;
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/MixedPropertiesAndAdditionalPropertiesClass.md b/samples/client/petstore/java/resttemplate/docs/MixedPropertiesAndAdditionalPropertiesClass.md
new file mode 100644
index 00000000000..349afef35a9
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/MixedPropertiesAndAdditionalPropertiesClass.md
@@ -0,0 +1,12 @@
+
+# MixedPropertiesAndAdditionalPropertiesClass
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**uuid** | [**UUID**](UUID.md) |  |  [optional]
+**dateTime** | [**DateTime**](DateTime.md) |  |  [optional]
+**map** | [**Map&lt;String, Animal&gt;**](Animal.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Model200Response.md b/samples/client/petstore/java/resttemplate/docs/Model200Response.md
new file mode 100644
index 00000000000..5b3a9a0e46d
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Model200Response.md
@@ -0,0 +1,11 @@
+
+# Model200Response
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**name** | **Integer** |  |  [optional]
+**propertyClass** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ModelApiResponse.md b/samples/client/petstore/java/resttemplate/docs/ModelApiResponse.md
new file mode 100644
index 00000000000..3eec8686cc9
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ModelApiResponse.md
@@ -0,0 +1,12 @@
+
+# ModelApiResponse
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**code** | **Integer** |  |  [optional]
+**type** | **String** |  |  [optional]
+**message** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ModelReturn.md b/samples/client/petstore/java/resttemplate/docs/ModelReturn.md
new file mode 100644
index 00000000000..a679b04953e
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ModelReturn.md
@@ -0,0 +1,10 @@
+
+# ModelReturn
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**_return** | **Integer** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Name.md b/samples/client/petstore/java/resttemplate/docs/Name.md
new file mode 100644
index 00000000000..ce2fb4dee50
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Name.md
@@ -0,0 +1,13 @@
+
+# Name
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**name** | **Integer** |  | 
+**snakeCase** | **Integer** |  |  [optional]
+**property** | **String** |  |  [optional]
+**_123Number** | **Integer** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/NumberOnly.md b/samples/client/petstore/java/resttemplate/docs/NumberOnly.md
new file mode 100644
index 00000000000..a3feac7fadc
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/NumberOnly.md
@@ -0,0 +1,10 @@
+
+# NumberOnly
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**justNumber** | [**BigDecimal**](BigDecimal.md) |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Order.md b/samples/client/petstore/java/resttemplate/docs/Order.md
new file mode 100644
index 00000000000..a1089f5384e
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Order.md
@@ -0,0 +1,24 @@
+
+# Order
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **Long** |  |  [optional]
+**petId** | **Long** |  |  [optional]
+**quantity** | **Integer** |  |  [optional]
+**shipDate** | [**DateTime**](DateTime.md) |  |  [optional]
+**status** | [**StatusEnum**](#StatusEnum) | Order Status |  [optional]
+**complete** | **Boolean** |  |  [optional]
+
+
+<a name="StatusEnum"></a>
+## Enum: StatusEnum
+Name | Value
+---- | -----
+PLACED | &quot;placed&quot;
+APPROVED | &quot;approved&quot;
+DELIVERED | &quot;delivered&quot;
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/OuterEnum.md b/samples/client/petstore/java/resttemplate/docs/OuterEnum.md
new file mode 100644
index 00000000000..ed2cb206789
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/OuterEnum.md
@@ -0,0 +1,14 @@
+
+# OuterEnum
+
+## Enum
+
+
+* `PLACED` (value: `"placed"`)
+
+* `APPROVED` (value: `"approved"`)
+
+* `DELIVERED` (value: `"delivered"`)
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Pet.md b/samples/client/petstore/java/resttemplate/docs/Pet.md
new file mode 100644
index 00000000000..5b63109ef92
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Pet.md
@@ -0,0 +1,24 @@
+
+# Pet
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **Long** |  |  [optional]
+**category** | [**Category**](Category.md) |  |  [optional]
+**name** | **String** |  | 
+**photoUrls** | **List&lt;String&gt;** |  | 
+**tags** | [**List&lt;Tag&gt;**](Tag.md) |  |  [optional]
+**status** | [**StatusEnum**](#StatusEnum) | pet status in the store |  [optional]
+
+
+<a name="StatusEnum"></a>
+## Enum: StatusEnum
+Name | Value
+---- | -----
+AVAILABLE | &quot;available&quot;
+PENDING | &quot;pending&quot;
+SOLD | &quot;sold&quot;
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/PetApi.md b/samples/client/petstore/java/resttemplate/docs/PetApi.md
new file mode 100644
index 00000000000..b5fa395947d
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/PetApi.md
@@ -0,0 +1,448 @@
+# PetApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**addPet**](PetApi.md#addPet) | **POST** /pet | Add a new pet to the store
+[**deletePet**](PetApi.md#deletePet) | **DELETE** /pet/{petId} | Deletes a pet
+[**findPetsByStatus**](PetApi.md#findPetsByStatus) | **GET** /pet/findByStatus | Finds Pets by status
+[**findPetsByTags**](PetApi.md#findPetsByTags) | **GET** /pet/findByTags | Finds Pets by tags
+[**getPetById**](PetApi.md#getPetById) | **GET** /pet/{petId} | Find pet by ID
+[**updatePet**](PetApi.md#updatePet) | **PUT** /pet | Update an existing pet
+[**updatePetWithForm**](PetApi.md#updatePetWithForm) | **POST** /pet/{petId} | Updates a pet in the store with form data
+[**uploadFile**](PetApi.md#uploadFile) | **POST** /pet/{petId}/uploadImage | uploads an image
+
+
+<a name="addPet"></a>
+# **addPet**
+> addPet(body)
+
+Add a new pet to the store
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+try {
+    apiInstance.addPet(body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#addPet");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json, application/xml
+ - **Accept**: application/xml, application/json
+
+<a name="deletePet"></a>
+# **deletePet**
+> deletePet(petId, apiKey)
+
+Deletes a pet
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+Long petId = 789L; // Long | Pet id to delete
+String apiKey = "apiKey_example"; // String | 
+try {
+    apiInstance.deletePet(petId, apiKey);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#deletePet");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **petId** | **Long**| Pet id to delete |
+ **apiKey** | **String**|  | [optional]
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="findPetsByStatus"></a>
+# **findPetsByStatus**
+> List&lt;Pet&gt; findPetsByStatus(status)
+
+Finds Pets by status
+
+Multiple status values can be provided with comma separated strings
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+List<String> status = Arrays.asList("status_example"); // List<String> | Status values that need to be considered for filter
+try {
+    List<Pet> result = apiInstance.findPetsByStatus(status);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#findPetsByStatus");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **status** | [**List&lt;String&gt;**](String.md)| Status values that need to be considered for filter | [enum: available, pending, sold]
+
+### Return type
+
+[**List&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="findPetsByTags"></a>
+# **findPetsByTags**
+> List&lt;Pet&gt; findPetsByTags(tags)
+
+Finds Pets by tags
+
+Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+List<String> tags = Arrays.asList("tags_example"); // List<String> | Tags to filter by
+try {
+    List<Pet> result = apiInstance.findPetsByTags(tags);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#findPetsByTags");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **tags** | [**List&lt;String&gt;**](String.md)| Tags to filter by |
+
+### Return type
+
+[**List&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="getPetById"></a>
+# **getPetById**
+> Pet getPetById(petId)
+
+Find pet by ID
+
+Returns a single pet
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure API key authorization: api_key
+ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
+api_key.setApiKey("YOUR API KEY");
+// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+//api_key.setApiKeyPrefix("Token");
+
+PetApi apiInstance = new PetApi();
+Long petId = 789L; // Long | ID of pet to return
+try {
+    Pet result = apiInstance.getPetById(petId);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#getPetById");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **petId** | **Long**| ID of pet to return |
+
+### Return type
+
+[**Pet**](Pet.md)
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="updatePet"></a>
+# **updatePet**
+> updatePet(body)
+
+Update an existing pet
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+try {
+    apiInstance.updatePet(body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#updatePet");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json, application/xml
+ - **Accept**: application/xml, application/json
+
+<a name="updatePetWithForm"></a>
+# **updatePetWithForm**
+> updatePetWithForm(petId, name, status)
+
+Updates a pet in the store with form data
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+Long petId = 789L; // Long | ID of pet that needs to be updated
+String name = "name_example"; // String | Updated name of the pet
+String status = "status_example"; // String | Updated status of the pet
+try {
+    apiInstance.updatePetWithForm(petId, name, status);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#updatePetWithForm");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **petId** | **Long**| ID of pet that needs to be updated |
+ **name** | **String**| Updated name of the pet | [optional]
+ **status** | **String**| Updated status of the pet | [optional]
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: application/xml, application/json
+
+<a name="uploadFile"></a>
+# **uploadFile**
+> ModelApiResponse uploadFile(petId, additionalMetadata, file)
+
+uploads an image
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.PetApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure OAuth2 access token for authorization: petstore_auth
+OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+PetApi apiInstance = new PetApi();
+Long petId = 789L; // Long | ID of pet to update
+String additionalMetadata = "additionalMetadata_example"; // String | Additional data to pass to server
+File file = new File("/path/to/file.txt"); // File | file to upload
+try {
+    ModelApiResponse result = apiInstance.uploadFile(petId, additionalMetadata, file);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling PetApi#uploadFile");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **petId** | **Long**| ID of pet to update |
+ **additionalMetadata** | **String**| Additional data to pass to server | [optional]
+ **file** | **File**| file to upload | [optional]
+
+### Return type
+
+[**ModelApiResponse**](ModelApiResponse.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: multipart/form-data
+ - **Accept**: application/json
+
diff --git a/samples/client/petstore/java/resttemplate/docs/ReadOnlyFirst.md b/samples/client/petstore/java/resttemplate/docs/ReadOnlyFirst.md
new file mode 100644
index 00000000000..426b7cde95a
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/ReadOnlyFirst.md
@@ -0,0 +1,11 @@
+
+# ReadOnlyFirst
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**bar** | **String** |  |  [optional]
+**baz** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/SpecialModelName.md b/samples/client/petstore/java/resttemplate/docs/SpecialModelName.md
new file mode 100644
index 00000000000..c2c6117c552
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/SpecialModelName.md
@@ -0,0 +1,10 @@
+
+# SpecialModelName
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**specialPropertyName** | **Long** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/StoreApi.md b/samples/client/petstore/java/resttemplate/docs/StoreApi.md
new file mode 100644
index 00000000000..e6dc635e517
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/StoreApi.md
@@ -0,0 +1,197 @@
+# StoreApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**deleteOrder**](StoreApi.md#deleteOrder) | **DELETE** /store/order/{order_id} | Delete purchase order by ID
+[**getInventory**](StoreApi.md#getInventory) | **GET** /store/inventory | Returns pet inventories by status
+[**getOrderById**](StoreApi.md#getOrderById) | **GET** /store/order/{order_id} | Find purchase order by ID
+[**placeOrder**](StoreApi.md#placeOrder) | **POST** /store/order | Place an order for a pet
+
+
+<a name="deleteOrder"></a>
+# **deleteOrder**
+> deleteOrder(orderId)
+
+Delete purchase order by ID
+
+For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.StoreApi;
+
+
+StoreApi apiInstance = new StoreApi();
+String orderId = "orderId_example"; // String | ID of the order that needs to be deleted
+try {
+    apiInstance.deleteOrder(orderId);
+} catch (ApiException e) {
+    System.err.println("Exception when calling StoreApi#deleteOrder");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **orderId** | **String**| ID of the order that needs to be deleted |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="getInventory"></a>
+# **getInventory**
+> Map&lt;String, Integer&gt; getInventory()
+
+Returns pet inventories by status
+
+Returns a map of status codes to quantities
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiClient;
+//import io.swagger.client.ApiException;
+//import io.swagger.client.Configuration;
+//import io.swagger.client.auth.*;
+//import io.swagger.client.api.StoreApi;
+
+ApiClient defaultClient = Configuration.getDefaultApiClient();
+
+// Configure API key authorization: api_key
+ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
+api_key.setApiKey("YOUR API KEY");
+// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+//api_key.setApiKeyPrefix("Token");
+
+StoreApi apiInstance = new StoreApi();
+try {
+    Map<String, Integer> result = apiInstance.getInventory();
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling StoreApi#getInventory");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+
+### Return type
+
+[**Map&lt;String, Integer&gt;**](Map.md)
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+<a name="getOrderById"></a>
+# **getOrderById**
+> Order getOrderById(orderId)
+
+Find purchase order by ID
+
+For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generated exceptions
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.StoreApi;
+
+
+StoreApi apiInstance = new StoreApi();
+Long orderId = 789L; // Long | ID of pet that needs to be fetched
+try {
+    Order result = apiInstance.getOrderById(orderId);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling StoreApi#getOrderById");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **orderId** | **Long**| ID of pet that needs to be fetched |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="placeOrder"></a>
+# **placeOrder**
+> Order placeOrder(body)
+
+Place an order for a pet
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.StoreApi;
+
+
+StoreApi apiInstance = new StoreApi();
+Order body = new Order(); // Order | order placed for purchasing the pet
+try {
+    Order result = apiInstance.placeOrder(body);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling StoreApi#placeOrder");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**Order**](Order.md)| order placed for purchasing the pet |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
diff --git a/samples/client/petstore/java/resttemplate/docs/Tag.md b/samples/client/petstore/java/resttemplate/docs/Tag.md
new file mode 100644
index 00000000000..de6814b55d5
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/Tag.md
@@ -0,0 +1,11 @@
+
+# Tag
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **Long** |  |  [optional]
+**name** | **String** |  |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/User.md b/samples/client/petstore/java/resttemplate/docs/User.md
new file mode 100644
index 00000000000..8b6753dd284
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/User.md
@@ -0,0 +1,17 @@
+
+# User
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **Long** |  |  [optional]
+**username** | **String** |  |  [optional]
+**firstName** | **String** |  |  [optional]
+**lastName** | **String** |  |  [optional]
+**email** | **String** |  |  [optional]
+**password** | **String** |  |  [optional]
+**phone** | **String** |  |  [optional]
+**userStatus** | **Integer** | User Status |  [optional]
+
+
+
diff --git a/samples/client/petstore/java/resttemplate/docs/UserApi.md b/samples/client/petstore/java/resttemplate/docs/UserApi.md
new file mode 100644
index 00000000000..2e6987951c8
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/docs/UserApi.md
@@ -0,0 +1,370 @@
+# UserApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Method | HTTP request | Description
+------------- | ------------- | -------------
+[**createUser**](UserApi.md#createUser) | **POST** /user | Create user
+[**createUsersWithArrayInput**](UserApi.md#createUsersWithArrayInput) | **POST** /user/createWithArray | Creates list of users with given input array
+[**createUsersWithListInput**](UserApi.md#createUsersWithListInput) | **POST** /user/createWithList | Creates list of users with given input array
+[**deleteUser**](UserApi.md#deleteUser) | **DELETE** /user/{username} | Delete user
+[**getUserByName**](UserApi.md#getUserByName) | **GET** /user/{username} | Get user by user name
+[**loginUser**](UserApi.md#loginUser) | **GET** /user/login | Logs user into the system
+[**logoutUser**](UserApi.md#logoutUser) | **GET** /user/logout | Logs out current logged in user session
+[**updateUser**](UserApi.md#updateUser) | **PUT** /user/{username} | Updated user
+
+
+<a name="createUser"></a>
+# **createUser**
+> createUser(body)
+
+Create user
+
+This can only be done by the logged in user.
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+User body = new User(); // User | Created user object
+try {
+    apiInstance.createUser(body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#createUser");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**User**](User.md)| Created user object |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="createUsersWithArrayInput"></a>
+# **createUsersWithArrayInput**
+> createUsersWithArrayInput(body)
+
+Creates list of users with given input array
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+List<User> body = Arrays.asList(new User()); // List<User> | List of user object
+try {
+    apiInstance.createUsersWithArrayInput(body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#createUsersWithArrayInput");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**List&lt;User&gt;**](User.md)| List of user object |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="createUsersWithListInput"></a>
+# **createUsersWithListInput**
+> createUsersWithListInput(body)
+
+Creates list of users with given input array
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+List<User> body = Arrays.asList(new User()); // List<User> | List of user object
+try {
+    apiInstance.createUsersWithListInput(body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#createUsersWithListInput");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **body** | [**List&lt;User&gt;**](User.md)| List of user object |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="deleteUser"></a>
+# **deleteUser**
+> deleteUser(username)
+
+Delete user
+
+This can only be done by the logged in user.
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+String username = "username_example"; // String | The name that needs to be deleted
+try {
+    apiInstance.deleteUser(username);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#deleteUser");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **username** | **String**| The name that needs to be deleted |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="getUserByName"></a>
+# **getUserByName**
+> User getUserByName(username)
+
+Get user by user name
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+String username = "username_example"; // String | The name that needs to be fetched. Use user1 for testing. 
+try {
+    User result = apiInstance.getUserByName(username);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#getUserByName");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **username** | **String**| The name that needs to be fetched. Use user1 for testing.  |
+
+### Return type
+
+[**User**](User.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="loginUser"></a>
+# **loginUser**
+> String loginUser(username, password)
+
+Logs user into the system
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+String username = "username_example"; // String | The user name for login
+String password = "password_example"; // String | The password for login in clear text
+try {
+    String result = apiInstance.loginUser(username, password);
+    System.out.println(result);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#loginUser");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **username** | **String**| The user name for login |
+ **password** | **String**| The password for login in clear text |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="logoutUser"></a>
+# **logoutUser**
+> logoutUser()
+
+Logs out current logged in user session
+
+
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+try {
+    apiInstance.logoutUser();
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#logoutUser");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+<a name="updateUser"></a>
+# **updateUser**
+> updateUser(username, body)
+
+Updated user
+
+This can only be done by the logged in user.
+
+### Example
+```java
+// Import classes:
+//import io.swagger.client.ApiException;
+//import io.swagger.client.api.UserApi;
+
+
+UserApi apiInstance = new UserApi();
+String username = "username_example"; // String | name that need to be deleted
+User body = new User(); // User | Updated user object
+try {
+    apiInstance.updateUser(username, body);
+} catch (ApiException e) {
+    System.err.println("Exception when calling UserApi#updateUser");
+    e.printStackTrace();
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **username** | **String**| name that need to be deleted |
+ **body** | [**User**](User.md)| Updated user object |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
diff --git a/samples/client/petstore/java/resttemplate/git_push.sh b/samples/client/petstore/java/resttemplate/git_push.sh
new file mode 100644
index 00000000000..ed374619b13
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/git_push.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 swagger-petstore-perl "minor update"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository. 
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=`git remote`
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git crediential in your environment."
+        git remote add origin https://github.com/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:${GIT_TOKEN}@github.com/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://github.com/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'
+
diff --git a/samples/client/petstore/java/resttemplate/gradle.properties b/samples/client/petstore/java/resttemplate/gradle.properties
new file mode 100644
index 00000000000..05644f0754a
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/gradle.properties
@@ -0,0 +1,2 @@
+# Uncomment to build for Android
+#target = android
\ No newline at end of file
diff --git a/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.jar b/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000000..2c6137b8789
Binary files /dev/null and b/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.properties b/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000000..b7a36473955
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue May 17 23:08:05 CST 2016
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.6-bin.zip
diff --git a/samples/client/petstore/java/resttemplate/gradlew b/samples/client/petstore/java/resttemplate/gradlew
new file mode 100755
index 00000000000..9d82f789151
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/gradlew
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/samples/client/petstore/java/resttemplate/gradlew.bat b/samples/client/petstore/java/resttemplate/gradlew.bat
new file mode 100644
index 00000000000..5f192121eb4
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/samples/client/petstore/java/resttemplate/pom.xml b/samples/client/petstore/java/resttemplate/pom.xml
new file mode 100644
index 00000000000..98016ba5814
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/pom.xml
@@ -0,0 +1,173 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>io.swagger</groupId>
+  <artifactId>swagger-petstore-resttemplate</artifactId>
+  <packaging>jar</packaging>
+  <name>swagger-petstore-resttemplate</name>
+  <version>1.0.0</version>
+  <scm>
+    <connection>scm:git:git@github.com:swagger-api/swagger-mustache.git</connection>
+    <developerConnection>scm:git:git@github.com:swagger-api/swagger-codegen.git</developerConnection>
+    <url>https://github.com/swagger-api/swagger-codegen</url>
+  </scm>
+  <prerequisites>
+    <maven>2.2.0</maven>
+  </prerequisites>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>2.12</version>
+        <configuration>
+          <systemProperties>
+            <property>
+              <name>loggerPath</name>
+              <value>conf/log4j.properties</value>
+            </property>
+          </systemProperties>
+          <argLine>-Xms512m -Xmx1500m</argLine>
+          <parallel>methods</parallel>
+          <forkMode>pertest</forkMode>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>copy-dependencies</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>${project.build.directory}/lib</outputDirectory>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <!-- attach test jar -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.2</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+              <goal>test-jar</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>add_sources</id>
+            <phase>generate-sources</phase>
+            <goals>
+              <goal>add-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/main/java</source>
+              </sources>
+            </configuration>
+          </execution>
+          <execution>
+            <id>add_test_sources</id>
+            <phase>generate-test-sources</phase>
+            <goals>
+              <goal>add-test-source</goal>
+            </goals>
+            <configuration>
+              <sources>
+                <source>src/test/java</source>
+              </sources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.3.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+  <dependencies>
+    <dependency>
+      <groupId>io.swagger</groupId>
+      <artifactId>swagger-annotations</artifactId>
+      <version>${swagger-annotations-version}</version>
+    </dependency>
+
+    <!-- HTTP client: Spring RestTemplate -->
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-web</artifactId>
+      <version>${spring-web-version}</version>
+    </dependency>
+    
+    <!-- JSON processing: jackson -->
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-core</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-annotations</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>${jackson-version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.datatype</groupId>
+      <artifactId>jackson-datatype-joda</artifactId>
+      <version>2.1.5</version>
+    </dependency>
+    <dependency>
+      <groupId>joda-time</groupId>
+      <artifactId>joda-time</artifactId>
+      <version>${jodatime-version}</version>
+    </dependency>
+
+    <!-- Base64 encoding that works in both JVM and Android -->
+    <dependency>
+      <groupId>com.brsanthu</groupId>
+      <artifactId>migbase64</artifactId>
+      <version>2.2</version>
+    </dependency>
+
+    <!-- test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>${junit-version}</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <properties>
+    <swagger-annotations-version>1.5.0</swagger-annotations-version>
+    <spring-web-version>4.3.7.RELEASE</spring-web-version>
+    <jackson-version>2.7.5</jackson-version>
+    <jodatime-version>2.3</jodatime-version>
+    <maven-plugin-version>1.0.0</maven-plugin-version>
+    <junit-version>4.8.1</junit-version>
+  </properties>
+</project>
diff --git a/samples/client/petstore/java/resttemplate/settings.gradle b/samples/client/petstore/java/resttemplate/settings.gradle
new file mode 100644
index 00000000000..09db544e8ba
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = "swagger-petstore-resttemplate"
\ No newline at end of file
diff --git a/samples/client/petstore/java/resttemplate/src/main/AndroidManifest.xml b/samples/client/petstore/java/resttemplate/src/main/AndroidManifest.xml
new file mode 100644
index 00000000000..465dcb520c4
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/AndroidManifest.xml
@@ -0,0 +1,3 @@
+<manifest package="io.swagger.client" xmlns:android="http://schemas.android.com/apk/res/android">
+    <application />
+</manifest>
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/ApiClient.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/ApiClient.java
new file mode 100644
index 00000000000..5687d1d7ea2
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/ApiClient.java
@@ -0,0 +1,628 @@
+package io.swagger.client;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpRequest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.InvalidMediaTypeException;
+import org.springframework.http.MediaType;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.RequestEntity.BodyBuilder;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.BufferingClientHttpRequestFactory;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.util.StringUtils;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.web.util.UriUtils;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.TimeZone;
+
+import io.swagger.client.auth.Authentication;
+import io.swagger.client.auth.HttpBasicAuth;
+import io.swagger.client.auth.ApiKeyAuth;
+import io.swagger.client.auth.OAuth;
+
+
+@Component("io.swagger.client.ApiClient")
+public class ApiClient {
+    public enum CollectionFormat {
+        CSV(","), TSV("\t"), SSV(" "), PIPES("|"), MULTI(null);
+
+        private final String separator;
+        private CollectionFormat(String separator) {
+            this.separator = separator;
+        }
+
+        private String collectionToString(Collection<? extends CharSequence> collection) {
+            return StringUtils.collectionToDelimitedString(collection, separator);
+        }
+    }
+    
+    private boolean debugging = false;
+    
+    private HttpHeaders defaultHeaders = new HttpHeaders();
+    
+    private String basePath = "http://petstore.swagger.io:80/v2";
+
+    private RestTemplate restTemplate;
+
+    private Map<String, Authentication> authentications;
+
+    private HttpStatus statusCode;
+    private MultiValueMap<String, String> responseHeaders;
+    
+    private DateFormat dateFormat;
+
+    public ApiClient() {
+        this.restTemplate = buildRestTemplate();
+        init();
+    }
+    
+    @Autowired
+    public ApiClient(RestTemplate restTemplate) {
+        this.restTemplate = restTemplate;
+        init();
+    }
+    
+    protected void init() {
+        // Use RFC3339 format for date and datetime.
+        // See http://xml2rfc.ietf.org/public/rfc/html/rfc3339.html#anchor14
+        this.dateFormat = new RFC3339DateFormat();
+
+        // Use UTC as the default time zone.
+        this.dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+        // Set default User-Agent.
+        setUserAgent("Java-SDK");
+
+        // Setup authentications (key: authentication name, value: authentication).
+        authentications = new HashMap<String, Authentication>();
+        authentications.put("api_key", new ApiKeyAuth("header", "api_key"));
+        authentications.put("http_basic_test", new HttpBasicAuth());
+        authentications.put("petstore_auth", new OAuth());
+        // Prevent the authentications from being modified.
+        authentications = Collections.unmodifiableMap(authentications);
+    }
+    
+    /**
+     * Get the current base path
+     * @return String the base path
+     */
+    public String getBasePath() {
+        return basePath;
+    }
+
+    /**
+     * Set the base path, which should include the host
+     * @param basePath the base path
+     * @return ApiClient this client
+     */
+    public ApiClient setBasePath(String basePath) {
+        this.basePath = basePath;
+        return this;
+    }
+
+    /**
+     * Gets the status code of the previous request
+     * @return HttpStatus the status code
+     */
+    public HttpStatus getStatusCode() {
+        return statusCode;
+    }
+
+    /**
+     * Gets the response headers of the previous request
+     * @return MultiValueMap a map of response headers
+     */
+    public MultiValueMap<String, String> getResponseHeaders() {
+        return responseHeaders;
+    }
+
+    /**
+     * Get authentications (key: authentication name, value: authentication).
+     * @return Map the currently configured authentication types
+     */
+    public Map<String, Authentication> getAuthentications() {
+        return authentications;
+    }
+
+    /**
+     * Get authentication for the given name.
+     *
+     * @param authName The authentication name
+     * @return The authentication, null if not found
+     */
+    public Authentication getAuthentication(String authName) {
+        return authentications.get(authName);
+    }
+
+    /**
+     * Helper method to set username for the first HTTP basic authentication.
+     * @param username the username
+     */
+    public void setUsername(String username) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof HttpBasicAuth) {
+                ((HttpBasicAuth) auth).setUsername(username);
+                return;
+            }
+        }
+        throw new RuntimeException("No HTTP basic authentication configured!");
+    }
+
+    /**
+     * Helper method to set password for the first HTTP basic authentication.
+     * @param password the password
+     */
+    public void setPassword(String password) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof HttpBasicAuth) {
+                ((HttpBasicAuth) auth).setPassword(password);
+                return;
+            }
+        }
+        throw new RuntimeException("No HTTP basic authentication configured!");
+    }
+
+    /**
+     * Helper method to set API key value for the first API key authentication.
+     * @param apiKey the API key
+     */
+    public void setApiKey(String apiKey) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof ApiKeyAuth) {
+                ((ApiKeyAuth) auth).setApiKey(apiKey);
+                return;
+            }
+        }
+        throw new RuntimeException("No API key authentication configured!");
+    }
+
+    /**
+     * Helper method to set API key prefix for the first API key authentication.
+     * @param apiKeyPrefix the API key prefix
+     */
+    public void setApiKeyPrefix(String apiKeyPrefix) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof ApiKeyAuth) {
+                ((ApiKeyAuth) auth).setApiKeyPrefix(apiKeyPrefix);
+                return;
+            }
+        }
+        throw new RuntimeException("No API key authentication configured!");
+    }
+
+    /**
+     * Helper method to set access token for the first OAuth2 authentication.
+     * @param accessToken the access token
+     */
+    public void setAccessToken(String accessToken) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof OAuth) {
+                ((OAuth) auth).setAccessToken(accessToken);
+                return;
+            }
+        }
+        throw new RuntimeException("No OAuth2 authentication configured!");
+    }
+
+    /**
+     * Set the User-Agent header's value (by adding to the default header map).
+     * @param userAgent the user agent string
+     * @return ApiClient this client
+     */
+    public ApiClient setUserAgent(String userAgent) {
+        addDefaultHeader("User-Agent", userAgent);
+        return this;
+    }
+
+    /**
+     * Add a default header.
+     *
+     * @param name The header's name
+     * @param value The header's value
+     * @return ApiClient this client
+     */
+    public ApiClient addDefaultHeader(String name, String value) {
+        defaultHeaders.add(name, value);
+        return this;
+    }
+    
+    public void setDebugging(boolean debugging) {
+        List<ClientHttpRequestInterceptor> currentInterceptors = this.restTemplate.getInterceptors();
+        if(debugging) {
+            if (currentInterceptors == null) {
+                currentInterceptors = new ArrayList<ClientHttpRequestInterceptor>();
+            }
+            ClientHttpRequestInterceptor interceptor = new ApiClientHttpRequestInterceptor();
+            currentInterceptors.add(interceptor);
+            this.restTemplate.setInterceptors(currentInterceptors);
+        } else {
+            if (currentInterceptors != null && !currentInterceptors.isEmpty()) {
+                Iterator<ClientHttpRequestInterceptor> iter = currentInterceptors.iterator();
+                while (iter.hasNext()) {
+                    ClientHttpRequestInterceptor interceptor = iter.next();
+                    if (interceptor instanceof ApiClientHttpRequestInterceptor) {
+                        iter.remove();
+                    }
+                }
+                this.restTemplate.setInterceptors(currentInterceptors);
+            }
+        }
+        this.debugging = debugging;
+    }
+
+    /**
+     * Check that whether debugging is enabled for this API client.
+     * @return boolean true if this client is enabled for debugging, false otherwise
+     */
+    public boolean isDebugging() {
+        return debugging;
+    }
+
+    /**
+     * Get the date format used to parse/format date parameters.
+     * @return DateFormat format
+     */
+    public DateFormat getDateFormat() {
+        return dateFormat;
+    }
+
+    /**
+     * Set the date format used to parse/format date parameters.
+     * @param dateFormat Date format
+     * @return API client
+     */
+    public ApiClient setDateFormat(DateFormat dateFormat) {
+        this.dateFormat = dateFormat;
+        return this;
+    }
+    
+    /**
+     * Parse the given string into Date object.
+     */
+    public Date parseDate(String str) {
+        try {
+            return dateFormat.parse(str);
+        } catch (ParseException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * Format the given Date object into string.
+     */
+    public String formatDate(Date date) {
+        return dateFormat.format(date);
+    }
+
+    /**
+     * Format the given parameter object into string.
+     * @param param the object to convert
+     * @return String the parameter represented as a String
+     */
+    public String parameterToString(Object param) {
+        if (param == null) {
+            return "";
+        } else if (param instanceof Date) {
+            return formatDate( (Date) param);
+        } else if (param instanceof Collection) {
+            StringBuilder b = new StringBuilder();
+            for(Object o : (Collection<?>) param) {
+                if(b.length() > 0) {
+                    b.append(",");
+                }
+                b.append(String.valueOf(o));
+            }
+            return b.toString();
+        } else {
+            return String.valueOf(param);
+        }
+    }
+
+    /**
+     * Converts a parameter to a {@link MultiValueMap} for use in REST requests
+     * @param collectionFormat The format to convert to
+     * @param name The name of the parameter
+     * @param value The parameter's value
+     * @return a Map containing the String value(s) of the input parameter
+     */
+    public MultiValueMap<String, String> parameterToMultiValueMap(CollectionFormat collectionFormat, String name, Object value) {
+        final MultiValueMap<String, String> params = new LinkedMultiValueMap<String, String>();
+
+        if (name == null || name.isEmpty() || value == null) {
+            return params;
+        }
+
+        if(collectionFormat == null) {
+            collectionFormat = CollectionFormat.CSV;
+        }
+
+        Collection<?> valueCollection = null;
+        if (value instanceof Collection) {
+            valueCollection = (Collection<?>) value;
+        } else {
+            params.add(name, parameterToString(value));
+            return params;
+        }
+
+        if (valueCollection.isEmpty()){
+            return params;
+        }
+
+        if (collectionFormat.equals(CollectionFormat.MULTI)) {
+            for (Object item : valueCollection) {
+                params.add(name, parameterToString(item));
+            }
+            return params;
+        }
+
+        List<String> values = new ArrayList<String>();
+        for(Object o : valueCollection) {
+            values.add(parameterToString(o));
+        }
+        params.add(name, collectionFormat.collectionToString(values));
+
+        return params;
+    }
+
+    /**
+    * Check if the given {@code String} is a JSON MIME.
+    * @param mediaType the input MediaType
+    * @return boolean true if the MediaType represents JSON, false otherwise
+    */
+    public boolean isJsonMime(String mediaType) {
+        try {
+            return isJsonMime(MediaType.parseMediaType(mediaType));
+        } catch (InvalidMediaTypeException e) {
+        }
+        return false;
+    }
+
+    /**
+     * Check if the given MIME is a JSON MIME.
+     * JSON MIME examples:
+     *     application/json
+     *     application/json; charset=UTF8
+     *     APPLICATION/JSON
+     * @param mediaType the input MediaType
+     * @return boolean true if the MediaType represents JSON, false otherwise
+     */
+    public boolean isJsonMime(MediaType mediaType) {
+        return mediaType != null && (MediaType.APPLICATION_JSON.isCompatibleWith(mediaType) || mediaType.getSubtype().matches("^.*\\+json[;]?\\s*$"));
+    }
+
+    /**
+     * Select the Accept header's value from the given accepts array:
+     *     if JSON exists in the given array, use it;
+     *     otherwise use all of them (joining into a string)
+     *
+     * @param accepts The accepts array to select from
+     * @return List The list of MediaTypes to use for the Accept header
+     */
+    public List<MediaType> selectHeaderAccept(String[] accepts) {
+        if (accepts.length == 0) {
+            return null;
+        }
+        for (String accept : accepts) {
+            MediaType mediaType = MediaType.parseMediaType(accept);
+            if (isJsonMime(mediaType)) {
+                return Arrays.asList(mediaType);
+            }
+        }
+        return MediaType.parseMediaTypes(StringUtils.arrayToCommaDelimitedString(accepts));
+    }
+
+    /**
+     * Select the Content-Type header's value from the given array:
+     *     if JSON exists in the given array, use it;
+     *     otherwise use the first one of the array.
+     *
+     * @param contentTypes The Content-Type array to select from
+     * @return MediaType The Content-Type header to use. If the given array is empty, JSON will be used.
+     */
+    public MediaType selectHeaderContentType(String[] contentTypes) {
+        if (contentTypes.length == 0) {
+            return MediaType.APPLICATION_JSON;
+        }
+        for (String contentType : contentTypes) {
+            MediaType mediaType = MediaType.parseMediaType(contentType);
+            if (isJsonMime(mediaType)) {
+                return mediaType;
+            }
+        }
+        return MediaType.parseMediaType(contentTypes[0]);
+    }
+
+    /**
+     * Select the body to use for the request
+     * @param obj the body object
+     * @param formParams the form parameters
+     * @param contentType the content type of the request
+     * @return Object the selected body
+     */
+    protected Object selectBody(Object obj, MultiValueMap<String, Object> formParams, MediaType contentType) {
+        boolean isForm = MediaType.MULTIPART_FORM_DATA.isCompatibleWith(contentType) || MediaType.APPLICATION_FORM_URLENCODED.isCompatibleWith(contentType);
+        return isForm ? formParams : obj;
+    }
+
+    /**
+     * Invoke API by sending HTTP request with the given options.
+     *
+     * @param <T> the return type to use
+     * @param path The sub-path of the HTTP URL
+     * @param method The request method
+     * @param queryParams The query parameters
+     * @param body The request body object
+     * @param headerParams The header parameters
+     * @param formParams The form parameters
+     * @param accept The request's Accept header
+     * @param contentType The request's Content-Type header
+     * @param authNames The authentications to apply
+     * @param returnType The return type into which to deserialize the response
+     * @return The response body in chosen type
+     */
+    public <T> T invokeAPI(String path, HttpMethod method, MultiValueMap<String, String> queryParams, Object body, HttpHeaders headerParams, MultiValueMap<String, Object> formParams, List<MediaType> accept, MediaType contentType, String[] authNames, ParameterizedTypeReference<T> returnType) throws RestClientException {
+        updateParamsForAuth(authNames, queryParams, headerParams);
+        
+        final UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(basePath).path(path);
+        if (queryParams != null) {
+            builder.queryParams(queryParams);
+        }
+        
+        final BodyBuilder requestBuilder = RequestEntity.method(method, builder.build().toUri());
+        if(accept != null) {
+            requestBuilder.accept(accept.toArray(new MediaType[accept.size()]));
+        }
+        if(contentType != null) {
+            requestBuilder.contentType(contentType);
+        }
+        
+        addHeadersToRequest(headerParams, requestBuilder);
+        addHeadersToRequest(defaultHeaders, requestBuilder);
+        
+        RequestEntity<Object> requestEntity = requestBuilder.body(selectBody(body, formParams, contentType));
+
+        ResponseEntity<T> responseEntity = restTemplate.exchange(requestEntity, returnType);
+        
+        statusCode = responseEntity.getStatusCode();
+        responseHeaders = responseEntity.getHeaders();
+
+        if (responseEntity.getStatusCode() == HttpStatus.NO_CONTENT) {
+            return null;
+        } else if (responseEntity.getStatusCode().is2xxSuccessful()) {
+            if (returnType == null) {
+                return null;
+            }
+            return responseEntity.getBody();
+        } else {
+            // The error handler built into the RestTemplate should handle 400 and 500 series errors.
+            throw new RestClientException("API returned " + statusCode + " and it wasn't handled by the RestTemplate error handler");
+        }
+    }
+    
+    /**
+     * Add headers to the request that is being built
+     * @param headers The headers to add
+     * @param requestBuilder The current request
+     */
+    protected void addHeadersToRequest(HttpHeaders headers, BodyBuilder requestBuilder) {
+        for (Entry<String, List<String>> entry : headers.entrySet()) {
+            List<String> values = entry.getValue();
+            for(String value : values) {
+                if (value != null) {
+                    requestBuilder.header(entry.getKey(), value);
+                }
+            }
+        }
+    }
+
+    /**
+     * Build the RestTemplate used to make HTTP requests.
+     * @return RestTemplate
+     */
+    protected RestTemplate buildRestTemplate() {
+        RestTemplate restTemplate = new RestTemplate();
+        // This allows us to read the response more than once - Necessary for debugging.
+        restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(restTemplate.getRequestFactory()));
+        return restTemplate;
+    }
+
+    /**
+     * Update query and header parameters based on authentication settings.
+     *
+     * @param authNames The authentications to apply
+     * @param queryParams The query parameters
+     * @param headerParams The header parameters
+     */
+    private void updateParamsForAuth(String[] authNames, MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        for (String authName : authNames) {
+            Authentication auth = authentications.get(authName);
+            if (auth == null) {
+                throw new RestClientException("Authentication undefined: " + authName);
+            }
+            auth.applyToParams(queryParams, headerParams);
+        }
+    }
+    
+    private class ApiClientHttpRequestInterceptor implements ClientHttpRequestInterceptor {
+        private final Log log = LogFactory.getLog(ApiClientHttpRequestInterceptor.class);
+
+        @Override
+        public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+            logRequest(request, body);
+            ClientHttpResponse response = execution.execute(request, body);
+            logResponse(response);
+            return response;
+        }
+
+        private void logRequest(HttpRequest request, byte[] body) throws UnsupportedEncodingException {
+            log.info("URI: " + request.getURI());
+            log.info("HTTP Method: " + request.getMethod());
+            log.info("HTTP Headers: " + headersToString(request.getHeaders()));
+            log.info("Request Body: " + new String(body, StandardCharsets.UTF_8));
+        }
+
+        private void logResponse(ClientHttpResponse response) throws IOException {
+            log.info("HTTP Status Code: " + response.getRawStatusCode());
+            log.info("Status Text: " + response.getStatusText());
+            log.info("HTTP Headers: " + headersToString(response.getHeaders()));
+            log.info("Response Body: " + bodyToString(response.getBody()));
+        }
+
+        private String headersToString(HttpHeaders headers) {
+            StringBuilder builder = new StringBuilder();
+            for(Entry<String, List<String>> entry : headers.entrySet()) {
+                builder.append(entry.getKey()).append("=[");
+                for(String value : entry.getValue()) {
+                    builder.append(value).append(",");
+                }
+                builder.setLength(builder.length() - 1); // Get rid of trailing comma
+                builder.append("],");
+            }
+            builder.setLength(builder.length() - 1); // Get rid of trailing comma
+            return builder.toString();
+        }
+        
+        private String bodyToString(InputStream body) throws IOException {
+            StringBuilder builder = new StringBuilder();
+            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(body, StandardCharsets.UTF_8));
+            String line = bufferedReader.readLine();
+            while (line != null) {
+                builder.append(line).append(System.lineSeparator());
+                line = bufferedReader.readLine();
+            }
+            bufferedReader.close();
+            return builder.toString();
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/RFC3339DateFormat.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/RFC3339DateFormat.java
new file mode 100644
index 00000000000..e8df24310aa
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/RFC3339DateFormat.java
@@ -0,0 +1,32 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+package io.swagger.client;
+
+import com.fasterxml.jackson.databind.util.ISO8601DateFormat;
+import com.fasterxml.jackson.databind.util.ISO8601Utils;
+
+import java.text.FieldPosition;
+import java.util.Date;
+
+
+public class RFC3339DateFormat extends ISO8601DateFormat {
+
+  // Same as ISO8601DateFormat but serializing milliseconds.
+  @Override
+  public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
+    String value = ISO8601Utils.format(date, true);
+    toAppendTo.append(value);
+    return toAppendTo;
+  }
+
+}
\ No newline at end of file
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/FakeApi.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/FakeApi.java
new file mode 100644
index 00000000000..add04d01dee
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/FakeApi.java
@@ -0,0 +1,234 @@
+package io.swagger.client.api;
+
+import io.swagger.client.ApiClient;
+
+import java.math.BigDecimal;
+import io.swagger.client.model.Client;
+import org.joda.time.DateTime;
+import org.joda.time.LocalDate;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+
+@Component("io.swagger.client.api.FakeApi")
+public class FakeApi {
+    private ApiClient apiClient;
+
+    public FakeApi() {
+        this(new ApiClient());
+    }
+
+    @Autowired
+    public FakeApi(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    public ApiClient getApiClient() {
+        return apiClient;
+    }
+
+    public void setApiClient(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    /**
+     * To test \&quot;client\&quot; model
+     * To test \&quot;client\&quot; model
+     * <p><b>200</b> - successful operation
+     * @param body client model
+     * @return Client
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public Client testClientModel(Client body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling testClientModel");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/fake").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "application/json"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Client> returnType = new ParameterizedTypeReference<Client>() {};
+        return apiClient.invokeAPI(path, HttpMethod.PATCH, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     * <p><b>400</b> - Invalid username supplied
+     * <p><b>404</b> - User not found
+     * @param number None
+     * @param _double None
+     * @param patternWithoutDelimiter None
+     * @param _byte None
+     * @param integer None
+     * @param int32 None
+     * @param int64 None
+     * @param _float None
+     * @param string None
+     * @param binary None
+     * @param date None
+     * @param dateTime None
+     * @param password None
+     * @param paramCallback None
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void testEndpointParameters(BigDecimal number, Double _double, String patternWithoutDelimiter, byte[] _byte, Integer integer, Integer int32, Long int64, Float _float, String string, byte[] binary, LocalDate date, DateTime dateTime, String password, String paramCallback) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'number' is set
+        if (number == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'number' when calling testEndpointParameters");
+        }
+        
+        // verify the required parameter '_double' is set
+        if (_double == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter '_double' when calling testEndpointParameters");
+        }
+        
+        // verify the required parameter 'patternWithoutDelimiter' is set
+        if (patternWithoutDelimiter == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'patternWithoutDelimiter' when calling testEndpointParameters");
+        }
+        
+        // verify the required parameter '_byte' is set
+        if (_byte == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter '_byte' when calling testEndpointParameters");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/fake").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        if (integer != null)
+            formParams.add("integer", integer);
+        if (int32 != null)
+            formParams.add("int32", int32);
+        if (int64 != null)
+            formParams.add("int64", int64);
+        if (number != null)
+            formParams.add("number", number);
+        if (_float != null)
+            formParams.add("float", _float);
+        if (_double != null)
+            formParams.add("double", _double);
+        if (string != null)
+            formParams.add("string", string);
+        if (patternWithoutDelimiter != null)
+            formParams.add("pattern_without_delimiter", patternWithoutDelimiter);
+        if (_byte != null)
+            formParams.add("byte", _byte);
+        if (binary != null)
+            formParams.add("binary", binary);
+        if (date != null)
+            formParams.add("date", date);
+        if (dateTime != null)
+            formParams.add("dateTime", dateTime);
+        if (password != null)
+            formParams.add("password", password);
+        if (paramCallback != null)
+            formParams.add("callback", paramCallback);
+
+        final String[] accepts = { 
+            "application/xml; charset&#x3D;utf-8", "application/json; charset&#x3D;utf-8"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "application/xml; charset&#x3D;utf-8", "application/json; charset&#x3D;utf-8"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "http_basic_test" };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * To test enum parameters
+     * To test enum parameters
+     * <p><b>400</b> - Invalid request
+     * <p><b>404</b> - Not found
+     * @param enumFormStringArray Form parameter enum test (string array)
+     * @param enumFormString Form parameter enum test (string)
+     * @param enumHeaderStringArray Header parameter enum test (string array)
+     * @param enumHeaderString Header parameter enum test (string)
+     * @param enumQueryStringArray Query parameter enum test (string array)
+     * @param enumQueryString Query parameter enum test (string)
+     * @param enumQueryInteger Query parameter enum test (double)
+     * @param enumQueryDouble Query parameter enum test (double)
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void testEnumParameters(List<String> enumFormStringArray, String enumFormString, List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble) throws RestClientException {
+        Object postBody = null;
+        
+        String path = UriComponentsBuilder.fromPath("/fake").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        queryParams.putAll(apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.valueOf("csv".toUpperCase()), "enum_query_string_array", enumQueryStringArray));
+        queryParams.putAll(apiClient.parameterToMultiValueMap(null, "enum_query_string", enumQueryString));
+        queryParams.putAll(apiClient.parameterToMultiValueMap(null, "enum_query_integer", enumQueryInteger));
+        
+        if (enumHeaderStringArray != null)
+        headerParams.add("enum_header_string_array", apiClient.parameterToString(enumHeaderStringArray));
+        if (enumHeaderString != null)
+        headerParams.add("enum_header_string", apiClient.parameterToString(enumHeaderString));
+        
+        if (enumFormStringArray != null)
+            formParams.add("enum_form_string_array", enumFormStringArray);
+        if (enumFormString != null)
+            formParams.add("enum_form_string", enumFormString);
+        if (enumQueryDouble != null)
+            formParams.add("enum_query_double", enumQueryDouble);
+
+        final String[] accepts = { 
+            "*/*"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "*/*"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/PetApi.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/PetApi.java
new file mode 100644
index 00000000000..0d8436ccc63
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/PetApi.java
@@ -0,0 +1,366 @@
+package io.swagger.client.api;
+
+import io.swagger.client.ApiClient;
+
+import java.io.File;
+import io.swagger.client.model.ModelApiResponse;
+import io.swagger.client.model.Pet;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+
+@Component("io.swagger.client.api.PetApi")
+public class PetApi {
+    private ApiClient apiClient;
+
+    public PetApi() {
+        this(new ApiClient());
+    }
+
+    @Autowired
+    public PetApi(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    public ApiClient getApiClient() {
+        return apiClient;
+    }
+
+    public void setApiClient(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    /**
+     * Add a new pet to the store
+     * 
+     * <p><b>405</b> - Invalid input
+     * @param body Pet object that needs to be added to the store
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void addPet(Pet body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling addPet");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/pet").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "application/json", "application/xml"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Deletes a pet
+     * 
+     * <p><b>400</b> - Invalid pet value
+     * @param petId Pet id to delete
+     * @param apiKey The apiKey parameter
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void deletePet(Long petId, String apiKey) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'petId' is set
+        if (petId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'petId' when calling deletePet");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("petId", petId);
+        String path = UriComponentsBuilder.fromPath("/pet/{petId}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        if (apiKey != null)
+        headerParams.add("api_key", apiClient.parameterToString(apiKey));
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.DELETE, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Finds Pets by status
+     * Multiple status values can be provided with comma separated strings
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid status value
+     * @param status Status values that need to be considered for filter
+     * @return List&lt;Pet&gt;
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public List<Pet> findPetsByStatus(List<String> status) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'status' is set
+        if (status == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'status' when calling findPetsByStatus");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/pet/findByStatus").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        queryParams.putAll(apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.valueOf("csv".toUpperCase()), "status", status));
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<List<Pet>> returnType = new ParameterizedTypeReference<List<Pet>>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Finds Pets by tags
+     * Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid tag value
+     * @param tags Tags to filter by
+     * @return List&lt;Pet&gt;
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public List<Pet> findPetsByTags(List<String> tags) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'tags' is set
+        if (tags == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'tags' when calling findPetsByTags");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/pet/findByTags").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        queryParams.putAll(apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.valueOf("csv".toUpperCase()), "tags", tags));
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<List<Pet>> returnType = new ParameterizedTypeReference<List<Pet>>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Find pet by ID
+     * Returns a single pet
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid ID supplied
+     * <p><b>404</b> - Pet not found
+     * @param petId ID of pet to return
+     * @return Pet
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public Pet getPetById(Long petId) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'petId' is set
+        if (petId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'petId' when calling getPetById");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("petId", petId);
+        String path = UriComponentsBuilder.fromPath("/pet/{petId}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "api_key" };
+
+        ParameterizedTypeReference<Pet> returnType = new ParameterizedTypeReference<Pet>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Update an existing pet
+     * 
+     * <p><b>400</b> - Invalid ID supplied
+     * <p><b>404</b> - Pet not found
+     * <p><b>405</b> - Validation exception
+     * @param body Pet object that needs to be added to the store
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void updatePet(Pet body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling updatePet");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/pet").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "application/json", "application/xml"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.PUT, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Updates a pet in the store with form data
+     * 
+     * <p><b>405</b> - Invalid input
+     * @param petId ID of pet that needs to be updated
+     * @param name Updated name of the pet
+     * @param status Updated status of the pet
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void updatePetWithForm(Long petId, String name, String status) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'petId' is set
+        if (petId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'petId' when calling updatePetWithForm");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("petId", petId);
+        String path = UriComponentsBuilder.fromPath("/pet/{petId}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        if (name != null)
+            formParams.add("name", name);
+        if (status != null)
+            formParams.add("status", status);
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "application/x-www-form-urlencoded"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * uploads an image
+     * 
+     * <p><b>200</b> - successful operation
+     * @param petId ID of pet to update
+     * @param additionalMetadata Additional data to pass to server
+     * @param file file to upload
+     * @return ModelApiResponse
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public ModelApiResponse uploadFile(Long petId, String additionalMetadata, File file) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'petId' is set
+        if (petId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'petId' when calling uploadFile");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("petId", petId);
+        String path = UriComponentsBuilder.fromPath("/pet/{petId}/uploadImage").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        if (additionalMetadata != null)
+            formParams.add("additionalMetadata", additionalMetadata);
+        if (file != null)
+            formParams.add("file", new FileSystemResource(file));
+
+        final String[] accepts = { 
+            "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { 
+            "multipart/form-data"
+        };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "petstore_auth" };
+
+        ParameterizedTypeReference<ModelApiResponse> returnType = new ParameterizedTypeReference<ModelApiResponse>() {};
+        return apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/StoreApi.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/StoreApi.java
new file mode 100644
index 00000000000..bfe4173e279
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/StoreApi.java
@@ -0,0 +1,187 @@
+package io.swagger.client.api;
+
+import io.swagger.client.ApiClient;
+
+import io.swagger.client.model.Order;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+
+@Component("io.swagger.client.api.StoreApi")
+public class StoreApi {
+    private ApiClient apiClient;
+
+    public StoreApi() {
+        this(new ApiClient());
+    }
+
+    @Autowired
+    public StoreApi(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    public ApiClient getApiClient() {
+        return apiClient;
+    }
+
+    public void setApiClient(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    /**
+     * Delete purchase order by ID
+     * For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+     * <p><b>400</b> - Invalid ID supplied
+     * <p><b>404</b> - Order not found
+     * @param orderId ID of the order that needs to be deleted
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void deleteOrder(String orderId) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'orderId' is set
+        if (orderId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'orderId' when calling deleteOrder");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("order_id", orderId);
+        String path = UriComponentsBuilder.fromPath("/store/order/{order_id}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.DELETE, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Returns pet inventories by status
+     * Returns a map of status codes to quantities
+     * <p><b>200</b> - successful operation
+     * @return Map&lt;String, Integer&gt;
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public Map<String, Integer> getInventory() throws RestClientException {
+        Object postBody = null;
+        
+        String path = UriComponentsBuilder.fromPath("/store/inventory").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] { "api_key" };
+
+        ParameterizedTypeReference<Map<String, Integer>> returnType = new ParameterizedTypeReference<Map<String, Integer>>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Find purchase order by ID
+     * For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generated exceptions
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid ID supplied
+     * <p><b>404</b> - Order not found
+     * @param orderId ID of pet that needs to be fetched
+     * @return Order
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public Order getOrderById(Long orderId) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'orderId' is set
+        if (orderId == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'orderId' when calling getOrderById");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("order_id", orderId);
+        String path = UriComponentsBuilder.fromPath("/store/order/{order_id}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Order> returnType = new ParameterizedTypeReference<Order>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Place an order for a pet
+     * 
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid Order
+     * @param body order placed for purchasing the pet
+     * @return Order
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public Order placeOrder(Order body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling placeOrder");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/store/order").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Order> returnType = new ParameterizedTypeReference<Order>() {};
+        return apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/UserApi.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/UserApi.java
new file mode 100644
index 00000000000..3e2d1ac00af
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/api/UserApi.java
@@ -0,0 +1,337 @@
+package io.swagger.client.api;
+
+import io.swagger.client.ApiClient;
+
+import io.swagger.client.model.User;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.util.UriComponentsBuilder;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+
+@Component("io.swagger.client.api.UserApi")
+public class UserApi {
+    private ApiClient apiClient;
+
+    public UserApi() {
+        this(new ApiClient());
+    }
+
+    @Autowired
+    public UserApi(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    public ApiClient getApiClient() {
+        return apiClient;
+    }
+
+    public void setApiClient(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    /**
+     * Create user
+     * This can only be done by the logged in user.
+     * <p><b>0</b> - successful operation
+     * @param body Created user object
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void createUser(User body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling createUser");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/user").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Creates list of users with given input array
+     * 
+     * <p><b>0</b> - successful operation
+     * @param body List of user object
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void createUsersWithArrayInput(List<User> body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling createUsersWithArrayInput");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/user/createWithArray").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Creates list of users with given input array
+     * 
+     * <p><b>0</b> - successful operation
+     * @param body List of user object
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void createUsersWithListInput(List<User> body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling createUsersWithListInput");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/user/createWithList").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.POST, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Delete user
+     * This can only be done by the logged in user.
+     * <p><b>400</b> - Invalid username supplied
+     * <p><b>404</b> - User not found
+     * @param username The name that needs to be deleted
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void deleteUser(String username) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'username' is set
+        if (username == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'username' when calling deleteUser");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("username", username);
+        String path = UriComponentsBuilder.fromPath("/user/{username}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.DELETE, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Get user by user name
+     * 
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid username supplied
+     * <p><b>404</b> - User not found
+     * @param username The name that needs to be fetched. Use user1 for testing. 
+     * @return User
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public User getUserByName(String username) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'username' is set
+        if (username == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'username' when calling getUserByName");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("username", username);
+        String path = UriComponentsBuilder.fromPath("/user/{username}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<User> returnType = new ParameterizedTypeReference<User>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Logs user into the system
+     * 
+     * <p><b>200</b> - successful operation
+     * <p><b>400</b> - Invalid username/password supplied
+     * @param username The user name for login
+     * @param password The password for login in clear text
+     * @return String
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public String loginUser(String username, String password) throws RestClientException {
+        Object postBody = null;
+        
+        // verify the required parameter 'username' is set
+        if (username == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'username' when calling loginUser");
+        }
+        
+        // verify the required parameter 'password' is set
+        if (password == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'password' when calling loginUser");
+        }
+        
+        String path = UriComponentsBuilder.fromPath("/user/login").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+        
+        queryParams.putAll(apiClient.parameterToMultiValueMap(null, "username", username));
+        queryParams.putAll(apiClient.parameterToMultiValueMap(null, "password", password));
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<String> returnType = new ParameterizedTypeReference<String>() {};
+        return apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Logs out current logged in user session
+     * 
+     * <p><b>0</b> - successful operation
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void logoutUser() throws RestClientException {
+        Object postBody = null;
+        
+        String path = UriComponentsBuilder.fromPath("/user/logout").build().toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.GET, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+    /**
+     * Updated user
+     * This can only be done by the logged in user.
+     * <p><b>400</b> - Invalid user supplied
+     * <p><b>404</b> - User not found
+     * @param username name that need to be deleted
+     * @param body Updated user object
+     * @throws RestClientException if an error occurs while attempting to invoke the API
+     */
+    public void updateUser(String username, User body) throws RestClientException {
+        Object postBody = body;
+        
+        // verify the required parameter 'username' is set
+        if (username == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'username' when calling updateUser");
+        }
+        
+        // verify the required parameter 'body' is set
+        if (body == null) {
+            throw new HttpClientErrorException(HttpStatus.BAD_REQUEST, "Missing the required parameter 'body' when calling updateUser");
+        }
+        
+        // create path and map variables
+        final Map<String, Object> uriVariables = new HashMap<String, Object>();
+        uriVariables.put("username", username);
+        String path = UriComponentsBuilder.fromPath("/user/{username}").buildAndExpand(uriVariables).toUriString();
+        
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] accepts = { 
+            "application/xml", "application/json"
+        };
+        final List<MediaType> accept = apiClient.selectHeaderAccept(accepts);
+        final String[] contentTypes = { };
+        final MediaType contentType = apiClient.selectHeaderContentType(contentTypes);
+
+        String[] authNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> returnType = new ParameterizedTypeReference<Void>() {};
+        apiClient.invokeAPI(path, HttpMethod.PUT, queryParams, postBody, headerParams, formParams, accept, contentType, authNames, returnType);
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/ApiKeyAuth.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
new file mode 100644
index 00000000000..8afa7f62cc5
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/ApiKeyAuth.java
@@ -0,0 +1,60 @@
+package io.swagger.client.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+
+public class ApiKeyAuth implements Authentication {
+    private final String location;
+    private final String paramName;
+
+    private String apiKey;
+    private String apiKeyPrefix;
+
+    public ApiKeyAuth(String location, String paramName) {
+        this.location = location;
+        this.paramName = paramName;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public String getParamName() {
+        return paramName;
+    }
+
+    public String getApiKey() {
+        return apiKey;
+    }
+
+    public void setApiKey(String apiKey) {
+        this.apiKey = apiKey;
+    }
+
+    public String getApiKeyPrefix() {
+        return apiKeyPrefix;
+    }
+
+    public void setApiKeyPrefix(String apiKeyPrefix) {
+        this.apiKeyPrefix = apiKeyPrefix;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (apiKey == null) {
+            return;
+        }
+        String value;
+        if (apiKeyPrefix != null) {
+            value = apiKeyPrefix + " " + apiKey;
+        } else {
+            value = apiKey;
+        }
+        if (location.equals("query")) {
+            queryParams.add(paramName, value);
+        } else if (location.equals("header")) {
+            headerParams.add(paramName, value);
+       }
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/Authentication.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/Authentication.java
new file mode 100644
index 00000000000..6c5ff24d830
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/Authentication.java
@@ -0,0 +1,13 @@
+package io.swagger.client.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+public interface Authentication {
+    /** 
+     * Apply authentication settings to header and / or query parameters.
+     * @param queryParams The query parameters for the request 
+     * @param headerParams The header parameters for the request
+     */
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams);
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/HttpBasicAuth.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/HttpBasicAuth.java
new file mode 100644
index 00000000000..991474f59a9
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/HttpBasicAuth.java
@@ -0,0 +1,39 @@
+package io.swagger.client.auth;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.Base64Utils;
+import org.springframework.util.MultiValueMap;
+
+
+public class HttpBasicAuth implements Authentication {
+    private String username;
+    private String password;
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (username == null && password == null) {
+            return;
+        }
+        String str = (username == null ? "" : username) + ":" + (password == null ? "" : password);
+        headerParams.add(HttpHeaders.AUTHORIZATION, "Basic " + Base64Utils.encodeToString(str.getBytes(StandardCharsets.UTF_8)));
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuth.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuth.java
new file mode 100644
index 00000000000..c59164faae8
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuth.java
@@ -0,0 +1,24 @@
+package io.swagger.client.auth;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.MultiValueMap;
+
+
+public class OAuth implements Authentication {
+    private String accessToken;
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+    @Override
+    public void applyToParams(MultiValueMap<String, String> queryParams, HttpHeaders headerParams) {
+        if (accessToken != null) {
+            headerParams.add(HttpHeaders.AUTHORIZATION, "Bearer " + accessToken);
+        }
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuthFlow.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuthFlow.java
new file mode 100644
index 00000000000..597ec99b48b
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/auth/OAuthFlow.java
@@ -0,0 +1,5 @@
+package io.swagger.client.auth;
+
+public enum OAuthFlow {
+    accessCode, implicit, password, application
+}
\ No newline at end of file
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
new file mode 100644
index 00000000000..88490c60da1
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -0,0 +1,132 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * AdditionalPropertiesClass
+ */
+
+public class AdditionalPropertiesClass {
+  @JsonProperty("map_property")
+  private Map<String, String> mapProperty = null;
+
+  @JsonProperty("map_of_map_property")
+  private Map<String, Map<String, String>> mapOfMapProperty = null;
+
+  public AdditionalPropertiesClass mapProperty(Map<String, String> mapProperty) {
+    this.mapProperty = mapProperty;
+    return this;
+  }
+
+  public AdditionalPropertiesClass putMapPropertyItem(String key, String mapPropertyItem) {
+    if (this.mapProperty == null) {
+      this.mapProperty = new HashMap<String, String>();
+    }
+    this.mapProperty.put(key, mapPropertyItem);
+    return this;
+  }
+
+   /**
+   * Get mapProperty
+   * @return mapProperty
+  **/
+  @ApiModelProperty(value = "")
+  public Map<String, String> getMapProperty() {
+    return mapProperty;
+  }
+
+  public void setMapProperty(Map<String, String> mapProperty) {
+    this.mapProperty = mapProperty;
+  }
+
+  public AdditionalPropertiesClass mapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+    this.mapOfMapProperty = mapOfMapProperty;
+    return this;
+  }
+
+  public AdditionalPropertiesClass putMapOfMapPropertyItem(String key, Map<String, String> mapOfMapPropertyItem) {
+    if (this.mapOfMapProperty == null) {
+      this.mapOfMapProperty = new HashMap<String, Map<String, String>>();
+    }
+    this.mapOfMapProperty.put(key, mapOfMapPropertyItem);
+    return this;
+  }
+
+   /**
+   * Get mapOfMapProperty
+   * @return mapOfMapProperty
+  **/
+  @ApiModelProperty(value = "")
+  public Map<String, Map<String, String>> getMapOfMapProperty() {
+    return mapOfMapProperty;
+  }
+
+  public void setMapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+    this.mapOfMapProperty = mapOfMapProperty;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    AdditionalPropertiesClass additionalPropertiesClass = (AdditionalPropertiesClass) o;
+    return Objects.equals(this.mapProperty, additionalPropertiesClass.mapProperty) &&
+        Objects.equals(this.mapOfMapProperty, additionalPropertiesClass.mapOfMapProperty);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(mapProperty, mapOfMapProperty);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class AdditionalPropertiesClass {\n");
+    
+    sb.append("    mapProperty: ").append(toIndentedString(mapProperty)).append("\n");
+    sb.append("    mapOfMapProperty: ").append(toIndentedString(mapOfMapProperty)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Animal.java
new file mode 100644
index 00000000000..639ae9868b1
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Animal.java
@@ -0,0 +1,120 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Animal
+ */
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "className", visible = true )
+@JsonSubTypes({
+  @JsonSubTypes.Type(value = Dog.class, name = "Dog"),
+  @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
+})
+
+public class Animal {
+  @JsonProperty("className")
+  private String className = null;
+
+  @JsonProperty("color")
+  private String color = "red";
+
+  public Animal className(String className) {
+    this.className = className;
+    return this;
+  }
+
+   /**
+   * Get className
+   * @return className
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public String getClassName() {
+    return className;
+  }
+
+  public void setClassName(String className) {
+    this.className = className;
+  }
+
+  public Animal color(String color) {
+    this.color = color;
+    return this;
+  }
+
+   /**
+   * Get color
+   * @return color
+  **/
+  @ApiModelProperty(value = "")
+  public String getColor() {
+    return color;
+  }
+
+  public void setColor(String color) {
+    this.color = color;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Animal animal = (Animal) o;
+    return Objects.equals(this.className, animal.className) &&
+        Objects.equals(this.color, animal.color);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(className, color);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Animal {\n");
+    
+    sb.append("    className: ").append(toIndentedString(className)).append("\n");
+    sb.append("    color: ").append(toIndentedString(color)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AnimalFarm.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AnimalFarm.java
new file mode 100644
index 00000000000..af905454860
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/AnimalFarm.java
@@ -0,0 +1,65 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import io.swagger.client.model.Animal;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * AnimalFarm
+ */
+
+public class AnimalFarm extends ArrayList<Animal> {
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    return super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(super.hashCode());
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class AnimalFarm {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
new file mode 100644
index 00000000000..bb07ca990bf
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -0,0 +1,101 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ArrayOfArrayOfNumberOnly
+ */
+
+public class ArrayOfArrayOfNumberOnly {
+  @JsonProperty("ArrayArrayNumber")
+  private List<List<BigDecimal>> arrayArrayNumber = null;
+
+  public ArrayOfArrayOfNumberOnly arrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+    this.arrayArrayNumber = arrayArrayNumber;
+    return this;
+  }
+
+  public ArrayOfArrayOfNumberOnly addArrayArrayNumberItem(List<BigDecimal> arrayArrayNumberItem) {
+    if (this.arrayArrayNumber == null) {
+      this.arrayArrayNumber = new ArrayList<List<BigDecimal>>();
+    }
+    this.arrayArrayNumber.add(arrayArrayNumberItem);
+    return this;
+  }
+
+   /**
+   * Get arrayArrayNumber
+   * @return arrayArrayNumber
+  **/
+  @ApiModelProperty(value = "")
+  public List<List<BigDecimal>> getArrayArrayNumber() {
+    return arrayArrayNumber;
+  }
+
+  public void setArrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+    this.arrayArrayNumber = arrayArrayNumber;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayOfArrayOfNumberOnly arrayOfArrayOfNumberOnly = (ArrayOfArrayOfNumberOnly) o;
+    return Objects.equals(this.arrayArrayNumber, arrayOfArrayOfNumberOnly.arrayArrayNumber);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayArrayNumber);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayOfArrayOfNumberOnly {\n");
+    
+    sb.append("    arrayArrayNumber: ").append(toIndentedString(arrayArrayNumber)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
new file mode 100644
index 00000000000..45567259b11
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -0,0 +1,101 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ArrayOfNumberOnly
+ */
+
+public class ArrayOfNumberOnly {
+  @JsonProperty("ArrayNumber")
+  private List<BigDecimal> arrayNumber = null;
+
+  public ArrayOfNumberOnly arrayNumber(List<BigDecimal> arrayNumber) {
+    this.arrayNumber = arrayNumber;
+    return this;
+  }
+
+  public ArrayOfNumberOnly addArrayNumberItem(BigDecimal arrayNumberItem) {
+    if (this.arrayNumber == null) {
+      this.arrayNumber = new ArrayList<BigDecimal>();
+    }
+    this.arrayNumber.add(arrayNumberItem);
+    return this;
+  }
+
+   /**
+   * Get arrayNumber
+   * @return arrayNumber
+  **/
+  @ApiModelProperty(value = "")
+  public List<BigDecimal> getArrayNumber() {
+    return arrayNumber;
+  }
+
+  public void setArrayNumber(List<BigDecimal> arrayNumber) {
+    this.arrayNumber = arrayNumber;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayOfNumberOnly arrayOfNumberOnly = (ArrayOfNumberOnly) o;
+    return Objects.equals(this.arrayNumber, arrayOfNumberOnly.arrayNumber);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayNumber);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayOfNumberOnly {\n");
+    
+    sb.append("    arrayNumber: ").append(toIndentedString(arrayNumber)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayTest.java
new file mode 100644
index 00000000000..7f4e90a8e5f
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -0,0 +1,163 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.ReadOnlyFirst;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * ArrayTest
+ */
+
+public class ArrayTest {
+  @JsonProperty("array_of_string")
+  private List<String> arrayOfString = null;
+
+  @JsonProperty("array_array_of_integer")
+  private List<List<Long>> arrayArrayOfInteger = null;
+
+  @JsonProperty("array_array_of_model")
+  private List<List<ReadOnlyFirst>> arrayArrayOfModel = null;
+
+  public ArrayTest arrayOfString(List<String> arrayOfString) {
+    this.arrayOfString = arrayOfString;
+    return this;
+  }
+
+  public ArrayTest addArrayOfStringItem(String arrayOfStringItem) {
+    if (this.arrayOfString == null) {
+      this.arrayOfString = new ArrayList<String>();
+    }
+    this.arrayOfString.add(arrayOfStringItem);
+    return this;
+  }
+
+   /**
+   * Get arrayOfString
+   * @return arrayOfString
+  **/
+  @ApiModelProperty(value = "")
+  public List<String> getArrayOfString() {
+    return arrayOfString;
+  }
+
+  public void setArrayOfString(List<String> arrayOfString) {
+    this.arrayOfString = arrayOfString;
+  }
+
+  public ArrayTest arrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+    this.arrayArrayOfInteger = arrayArrayOfInteger;
+    return this;
+  }
+
+  public ArrayTest addArrayArrayOfIntegerItem(List<Long> arrayArrayOfIntegerItem) {
+    if (this.arrayArrayOfInteger == null) {
+      this.arrayArrayOfInteger = new ArrayList<List<Long>>();
+    }
+    this.arrayArrayOfInteger.add(arrayArrayOfIntegerItem);
+    return this;
+  }
+
+   /**
+   * Get arrayArrayOfInteger
+   * @return arrayArrayOfInteger
+  **/
+  @ApiModelProperty(value = "")
+  public List<List<Long>> getArrayArrayOfInteger() {
+    return arrayArrayOfInteger;
+  }
+
+  public void setArrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+    this.arrayArrayOfInteger = arrayArrayOfInteger;
+  }
+
+  public ArrayTest arrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+    this.arrayArrayOfModel = arrayArrayOfModel;
+    return this;
+  }
+
+  public ArrayTest addArrayArrayOfModelItem(List<ReadOnlyFirst> arrayArrayOfModelItem) {
+    if (this.arrayArrayOfModel == null) {
+      this.arrayArrayOfModel = new ArrayList<List<ReadOnlyFirst>>();
+    }
+    this.arrayArrayOfModel.add(arrayArrayOfModelItem);
+    return this;
+  }
+
+   /**
+   * Get arrayArrayOfModel
+   * @return arrayArrayOfModel
+  **/
+  @ApiModelProperty(value = "")
+  public List<List<ReadOnlyFirst>> getArrayArrayOfModel() {
+    return arrayArrayOfModel;
+  }
+
+  public void setArrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+    this.arrayArrayOfModel = arrayArrayOfModel;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayTest arrayTest = (ArrayTest) o;
+    return Objects.equals(this.arrayOfString, arrayTest.arrayOfString) &&
+        Objects.equals(this.arrayArrayOfInteger, arrayTest.arrayArrayOfInteger) &&
+        Objects.equals(this.arrayArrayOfModel, arrayTest.arrayArrayOfModel);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayOfString, arrayArrayOfInteger, arrayArrayOfModel);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayTest {\n");
+    
+    sb.append("    arrayOfString: ").append(toIndentedString(arrayOfString)).append("\n");
+    sb.append("    arrayArrayOfInteger: ").append(toIndentedString(arrayArrayOfInteger)).append("\n");
+    sb.append("    arrayArrayOfModel: ").append(toIndentedString(arrayArrayOfModel)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Capitalization.java
new file mode 100644
index 00000000000..50363d32e7b
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Capitalization.java
@@ -0,0 +1,205 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Capitalization
+ */
+
+public class Capitalization {
+  @JsonProperty("smallCamel")
+  private String smallCamel = null;
+
+  @JsonProperty("CapitalCamel")
+  private String capitalCamel = null;
+
+  @JsonProperty("small_Snake")
+  private String smallSnake = null;
+
+  @JsonProperty("Capital_Snake")
+  private String capitalSnake = null;
+
+  @JsonProperty("SCA_ETH_Flow_Points")
+  private String scAETHFlowPoints = null;
+
+  @JsonProperty("ATT_NAME")
+  private String ATT_NAME = null;
+
+  public Capitalization smallCamel(String smallCamel) {
+    this.smallCamel = smallCamel;
+    return this;
+  }
+
+   /**
+   * Get smallCamel
+   * @return smallCamel
+  **/
+  @ApiModelProperty(value = "")
+  public String getSmallCamel() {
+    return smallCamel;
+  }
+
+  public void setSmallCamel(String smallCamel) {
+    this.smallCamel = smallCamel;
+  }
+
+  public Capitalization capitalCamel(String capitalCamel) {
+    this.capitalCamel = capitalCamel;
+    return this;
+  }
+
+   /**
+   * Get capitalCamel
+   * @return capitalCamel
+  **/
+  @ApiModelProperty(value = "")
+  public String getCapitalCamel() {
+    return capitalCamel;
+  }
+
+  public void setCapitalCamel(String capitalCamel) {
+    this.capitalCamel = capitalCamel;
+  }
+
+  public Capitalization smallSnake(String smallSnake) {
+    this.smallSnake = smallSnake;
+    return this;
+  }
+
+   /**
+   * Get smallSnake
+   * @return smallSnake
+  **/
+  @ApiModelProperty(value = "")
+  public String getSmallSnake() {
+    return smallSnake;
+  }
+
+  public void setSmallSnake(String smallSnake) {
+    this.smallSnake = smallSnake;
+  }
+
+  public Capitalization capitalSnake(String capitalSnake) {
+    this.capitalSnake = capitalSnake;
+    return this;
+  }
+
+   /**
+   * Get capitalSnake
+   * @return capitalSnake
+  **/
+  @ApiModelProperty(value = "")
+  public String getCapitalSnake() {
+    return capitalSnake;
+  }
+
+  public void setCapitalSnake(String capitalSnake) {
+    this.capitalSnake = capitalSnake;
+  }
+
+  public Capitalization scAETHFlowPoints(String scAETHFlowPoints) {
+    this.scAETHFlowPoints = scAETHFlowPoints;
+    return this;
+  }
+
+   /**
+   * Get scAETHFlowPoints
+   * @return scAETHFlowPoints
+  **/
+  @ApiModelProperty(value = "")
+  public String getScAETHFlowPoints() {
+    return scAETHFlowPoints;
+  }
+
+  public void setScAETHFlowPoints(String scAETHFlowPoints) {
+    this.scAETHFlowPoints = scAETHFlowPoints;
+  }
+
+  public Capitalization ATT_NAME(String ATT_NAME) {
+    this.ATT_NAME = ATT_NAME;
+    return this;
+  }
+
+   /**
+   * Name of the pet 
+   * @return ATT_NAME
+  **/
+  @ApiModelProperty(value = "Name of the pet ")
+  public String getATTNAME() {
+    return ATT_NAME;
+  }
+
+  public void setATTNAME(String ATT_NAME) {
+    this.ATT_NAME = ATT_NAME;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Capitalization capitalization = (Capitalization) o;
+    return Objects.equals(this.smallCamel, capitalization.smallCamel) &&
+        Objects.equals(this.capitalCamel, capitalization.capitalCamel) &&
+        Objects.equals(this.smallSnake, capitalization.smallSnake) &&
+        Objects.equals(this.capitalSnake, capitalization.capitalSnake) &&
+        Objects.equals(this.scAETHFlowPoints, capitalization.scAETHFlowPoints) &&
+        Objects.equals(this.ATT_NAME, capitalization.ATT_NAME);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(smallCamel, capitalCamel, smallSnake, capitalSnake, scAETHFlowPoints, ATT_NAME);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Capitalization {\n");
+    
+    sb.append("    smallCamel: ").append(toIndentedString(smallCamel)).append("\n");
+    sb.append("    capitalCamel: ").append(toIndentedString(capitalCamel)).append("\n");
+    sb.append("    smallSnake: ").append(toIndentedString(smallSnake)).append("\n");
+    sb.append("    capitalSnake: ").append(toIndentedString(capitalSnake)).append("\n");
+    sb.append("    scAETHFlowPoints: ").append(toIndentedString(scAETHFlowPoints)).append("\n");
+    sb.append("    ATT_NAME: ").append(toIndentedString(ATT_NAME)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Cat.java
new file mode 100644
index 00000000000..6113e3deb23
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Cat.java
@@ -0,0 +1,92 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.Animal;
+
+/**
+ * Cat
+ */
+
+public class Cat extends Animal {
+  @JsonProperty("declawed")
+  private Boolean declawed = null;
+
+  public Cat declawed(Boolean declawed) {
+    this.declawed = declawed;
+    return this;
+  }
+
+   /**
+   * Get declawed
+   * @return declawed
+  **/
+  @ApiModelProperty(value = "")
+  public Boolean getDeclawed() {
+    return declawed;
+  }
+
+  public void setDeclawed(Boolean declawed) {
+    this.declawed = declawed;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Cat cat = (Cat) o;
+    return Objects.equals(this.declawed, cat.declawed) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(declawed, super.hashCode());
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Cat {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    declawed: ").append(toIndentedString(declawed)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Category.java
new file mode 100644
index 00000000000..94a415b5337
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Category.java
@@ -0,0 +1,113 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Category
+ */
+
+public class Category {
+  @JsonProperty("id")
+  private Long id = null;
+
+  @JsonProperty("name")
+  private String name = null;
+
+  public Category id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @ApiModelProperty(value = "")
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public Category name(String name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @ApiModelProperty(value = "")
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Category category = (Category) o;
+    return Objects.equals(this.id, category.id) &&
+        Objects.equals(this.name, category.name);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, name);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Category {\n");
+    
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ClassModel.java
new file mode 100644
index 00000000000..91f7b71c7ee
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ClassModel.java
@@ -0,0 +1,91 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Model for testing model with \&quot;_class\&quot; property
+ */
+@ApiModel(description = "Model for testing model with \"_class\" property")
+
+public class ClassModel {
+  @JsonProperty("_class")
+  private String propertyClass = null;
+
+  public ClassModel propertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+    return this;
+  }
+
+   /**
+   * Get propertyClass
+   * @return propertyClass
+  **/
+  @ApiModelProperty(value = "")
+  public String getPropertyClass() {
+    return propertyClass;
+  }
+
+  public void setPropertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ClassModel classModel = (ClassModel) o;
+    return Objects.equals(this.propertyClass, classModel.propertyClass);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(propertyClass);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ClassModel {\n");
+    
+    sb.append("    propertyClass: ").append(toIndentedString(propertyClass)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Client.java
new file mode 100644
index 00000000000..322f094f066
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Client.java
@@ -0,0 +1,90 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Client
+ */
+
+public class Client {
+  @JsonProperty("client")
+  private String client = null;
+
+  public Client client(String client) {
+    this.client = client;
+    return this;
+  }
+
+   /**
+   * Get client
+   * @return client
+  **/
+  @ApiModelProperty(value = "")
+  public String getClient() {
+    return client;
+  }
+
+  public void setClient(String client) {
+    this.client = client;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Client client = (Client) o;
+    return Objects.equals(this.client, client.client);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(client);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Client {\n");
+    
+    sb.append("    client: ").append(toIndentedString(client)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Dog.java
new file mode 100644
index 00000000000..82ff0bf28bf
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Dog.java
@@ -0,0 +1,92 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.Animal;
+
+/**
+ * Dog
+ */
+
+public class Dog extends Animal {
+  @JsonProperty("breed")
+  private String breed = null;
+
+  public Dog breed(String breed) {
+    this.breed = breed;
+    return this;
+  }
+
+   /**
+   * Get breed
+   * @return breed
+  **/
+  @ApiModelProperty(value = "")
+  public String getBreed() {
+    return breed;
+  }
+
+  public void setBreed(String breed) {
+    this.breed = breed;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Dog dog = (Dog) o;
+    return Objects.equals(this.breed, dog.breed) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(breed, super.hashCode());
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Dog {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    breed: ").append(toIndentedString(breed)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumArrays.java
new file mode 100644
index 00000000000..737e133e408
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -0,0 +1,185 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * EnumArrays
+ */
+
+public class EnumArrays {
+  /**
+   * Gets or Sets justSymbol
+   */
+  public enum JustSymbolEnum {
+    GREATER_THAN_OR_EQUAL_TO(">="),
+    
+    DOLLAR("$");
+
+    private String value;
+
+    JustSymbolEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static JustSymbolEnum fromValue(String text) {
+      for (JustSymbolEnum b : JustSymbolEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("just_symbol")
+  private JustSymbolEnum justSymbol = null;
+
+  /**
+   * Gets or Sets arrayEnum
+   */
+  public enum ArrayEnumEnum {
+    FISH("fish"),
+    
+    CRAB("crab");
+
+    private String value;
+
+    ArrayEnumEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static ArrayEnumEnum fromValue(String text) {
+      for (ArrayEnumEnum b : ArrayEnumEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("array_enum")
+  private List<ArrayEnumEnum> arrayEnum = null;
+
+  public EnumArrays justSymbol(JustSymbolEnum justSymbol) {
+    this.justSymbol = justSymbol;
+    return this;
+  }
+
+   /**
+   * Get justSymbol
+   * @return justSymbol
+  **/
+  @ApiModelProperty(value = "")
+  public JustSymbolEnum getJustSymbol() {
+    return justSymbol;
+  }
+
+  public void setJustSymbol(JustSymbolEnum justSymbol) {
+    this.justSymbol = justSymbol;
+  }
+
+  public EnumArrays arrayEnum(List<ArrayEnumEnum> arrayEnum) {
+    this.arrayEnum = arrayEnum;
+    return this;
+  }
+
+  public EnumArrays addArrayEnumItem(ArrayEnumEnum arrayEnumItem) {
+    if (this.arrayEnum == null) {
+      this.arrayEnum = new ArrayList<ArrayEnumEnum>();
+    }
+    this.arrayEnum.add(arrayEnumItem);
+    return this;
+  }
+
+   /**
+   * Get arrayEnum
+   * @return arrayEnum
+  **/
+  @ApiModelProperty(value = "")
+  public List<ArrayEnumEnum> getArrayEnum() {
+    return arrayEnum;
+  }
+
+  public void setArrayEnum(List<ArrayEnumEnum> arrayEnum) {
+    this.arrayEnum = arrayEnum;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    EnumArrays enumArrays = (EnumArrays) o;
+    return Objects.equals(this.justSymbol, enumArrays.justSymbol) &&
+        Objects.equals(this.arrayEnum, enumArrays.arrayEnum);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(justSymbol, arrayEnum);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class EnumArrays {\n");
+    
+    sb.append("    justSymbol: ").append(toIndentedString(justSymbol)).append("\n");
+    sb.append("    arrayEnum: ").append(toIndentedString(arrayEnum)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumClass.java
new file mode 100644
index 00000000000..5766e2d3e98
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumClass.java
@@ -0,0 +1,54 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets EnumClass
+ */
+public enum EnumClass {
+  
+  _ABC("_abc"),
+  
+  _EFG("-efg"),
+  
+  _XYZ_("(xyz)");
+
+  private String value;
+
+  EnumClass(String value) {
+    this.value = value;
+  }
+
+  @Override
+  @JsonValue
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static EnumClass fromValue(String text) {
+    for (EnumClass b : EnumClass.values()) {
+      if (String.valueOf(b.value).equals(text)) {
+        return b;
+      }
+    }
+    return null;
+  }
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumTest.java
new file mode 100644
index 00000000000..d8b6c89e189
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/EnumTest.java
@@ -0,0 +1,255 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.OuterEnum;
+
+/**
+ * EnumTest
+ */
+
+public class EnumTest {
+  /**
+   * Gets or Sets enumString
+   */
+  public enum EnumStringEnum {
+    UPPER("UPPER"),
+    
+    LOWER("lower"),
+    
+    EMPTY("");
+
+    private String value;
+
+    EnumStringEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static EnumStringEnum fromValue(String text) {
+      for (EnumStringEnum b : EnumStringEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("enum_string")
+  private EnumStringEnum enumString = null;
+
+  /**
+   * Gets or Sets enumInteger
+   */
+  public enum EnumIntegerEnum {
+    NUMBER_1(1),
+    
+    NUMBER_MINUS_1(-1);
+
+    private Integer value;
+
+    EnumIntegerEnum(Integer value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static EnumIntegerEnum fromValue(String text) {
+      for (EnumIntegerEnum b : EnumIntegerEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("enum_integer")
+  private EnumIntegerEnum enumInteger = null;
+
+  /**
+   * Gets or Sets enumNumber
+   */
+  public enum EnumNumberEnum {
+    NUMBER_1_DOT_1(1.1),
+    
+    NUMBER_MINUS_1_DOT_2(-1.2);
+
+    private Double value;
+
+    EnumNumberEnum(Double value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static EnumNumberEnum fromValue(String text) {
+      for (EnumNumberEnum b : EnumNumberEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("enum_number")
+  private EnumNumberEnum enumNumber = null;
+
+  @JsonProperty("outerEnum")
+  private OuterEnum outerEnum = null;
+
+  public EnumTest enumString(EnumStringEnum enumString) {
+    this.enumString = enumString;
+    return this;
+  }
+
+   /**
+   * Get enumString
+   * @return enumString
+  **/
+  @ApiModelProperty(value = "")
+  public EnumStringEnum getEnumString() {
+    return enumString;
+  }
+
+  public void setEnumString(EnumStringEnum enumString) {
+    this.enumString = enumString;
+  }
+
+  public EnumTest enumInteger(EnumIntegerEnum enumInteger) {
+    this.enumInteger = enumInteger;
+    return this;
+  }
+
+   /**
+   * Get enumInteger
+   * @return enumInteger
+  **/
+  @ApiModelProperty(value = "")
+  public EnumIntegerEnum getEnumInteger() {
+    return enumInteger;
+  }
+
+  public void setEnumInteger(EnumIntegerEnum enumInteger) {
+    this.enumInteger = enumInteger;
+  }
+
+  public EnumTest enumNumber(EnumNumberEnum enumNumber) {
+    this.enumNumber = enumNumber;
+    return this;
+  }
+
+   /**
+   * Get enumNumber
+   * @return enumNumber
+  **/
+  @ApiModelProperty(value = "")
+  public EnumNumberEnum getEnumNumber() {
+    return enumNumber;
+  }
+
+  public void setEnumNumber(EnumNumberEnum enumNumber) {
+    this.enumNumber = enumNumber;
+  }
+
+  public EnumTest outerEnum(OuterEnum outerEnum) {
+    this.outerEnum = outerEnum;
+    return this;
+  }
+
+   /**
+   * Get outerEnum
+   * @return outerEnum
+  **/
+  @ApiModelProperty(value = "")
+  public OuterEnum getOuterEnum() {
+    return outerEnum;
+  }
+
+  public void setOuterEnum(OuterEnum outerEnum) {
+    this.outerEnum = outerEnum;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    EnumTest enumTest = (EnumTest) o;
+    return Objects.equals(this.enumString, enumTest.enumString) &&
+        Objects.equals(this.enumInteger, enumTest.enumInteger) &&
+        Objects.equals(this.enumNumber, enumTest.enumNumber) &&
+        Objects.equals(this.outerEnum, enumTest.outerEnum);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(enumString, enumInteger, enumNumber, outerEnum);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class EnumTest {\n");
+    
+    sb.append("    enumString: ").append(toIndentedString(enumString)).append("\n");
+    sb.append("    enumInteger: ").append(toIndentedString(enumInteger)).append("\n");
+    sb.append("    enumNumber: ").append(toIndentedString(enumNumber)).append("\n");
+    sb.append("    outerEnum: ").append(toIndentedString(outerEnum)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/FormatTest.java
new file mode 100644
index 00000000000..c2aa5f35fed
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/FormatTest.java
@@ -0,0 +1,380 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.math.BigDecimal;
+import java.util.UUID;
+import org.joda.time.DateTime;
+import org.joda.time.LocalDate;
+
+/**
+ * FormatTest
+ */
+
+public class FormatTest {
+  @JsonProperty("integer")
+  private Integer integer = null;
+
+  @JsonProperty("int32")
+  private Integer int32 = null;
+
+  @JsonProperty("int64")
+  private Long int64 = null;
+
+  @JsonProperty("number")
+  private BigDecimal number = null;
+
+  @JsonProperty("float")
+  private Float _float = null;
+
+  @JsonProperty("double")
+  private Double _double = null;
+
+  @JsonProperty("string")
+  private String string = null;
+
+  @JsonProperty("byte")
+  private byte[] _byte = null;
+
+  @JsonProperty("binary")
+  private byte[] binary = null;
+
+  @JsonProperty("date")
+  private LocalDate date = null;
+
+  @JsonProperty("dateTime")
+  private DateTime dateTime = null;
+
+  @JsonProperty("uuid")
+  private UUID uuid = null;
+
+  @JsonProperty("password")
+  private String password = null;
+
+  public FormatTest integer(Integer integer) {
+    this.integer = integer;
+    return this;
+  }
+
+   /**
+   * Get integer
+   * minimum: 10
+   * maximum: 100
+   * @return integer
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getInteger() {
+    return integer;
+  }
+
+  public void setInteger(Integer integer) {
+    this.integer = integer;
+  }
+
+  public FormatTest int32(Integer int32) {
+    this.int32 = int32;
+    return this;
+  }
+
+   /**
+   * Get int32
+   * minimum: 20
+   * maximum: 200
+   * @return int32
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getInt32() {
+    return int32;
+  }
+
+  public void setInt32(Integer int32) {
+    this.int32 = int32;
+  }
+
+  public FormatTest int64(Long int64) {
+    this.int64 = int64;
+    return this;
+  }
+
+   /**
+   * Get int64
+   * @return int64
+  **/
+  @ApiModelProperty(value = "")
+  public Long getInt64() {
+    return int64;
+  }
+
+  public void setInt64(Long int64) {
+    this.int64 = int64;
+  }
+
+  public FormatTest number(BigDecimal number) {
+    this.number = number;
+    return this;
+  }
+
+   /**
+   * Get number
+   * minimum: 32.1
+   * maximum: 543.2
+   * @return number
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public BigDecimal getNumber() {
+    return number;
+  }
+
+  public void setNumber(BigDecimal number) {
+    this.number = number;
+  }
+
+  public FormatTest _float(Float _float) {
+    this._float = _float;
+    return this;
+  }
+
+   /**
+   * Get _float
+   * minimum: 54.3
+   * maximum: 987.6
+   * @return _float
+  **/
+  @ApiModelProperty(value = "")
+  public Float getFloat() {
+    return _float;
+  }
+
+  public void setFloat(Float _float) {
+    this._float = _float;
+  }
+
+  public FormatTest _double(Double _double) {
+    this._double = _double;
+    return this;
+  }
+
+   /**
+   * Get _double
+   * minimum: 67.8
+   * maximum: 123.4
+   * @return _double
+  **/
+  @ApiModelProperty(value = "")
+  public Double getDouble() {
+    return _double;
+  }
+
+  public void setDouble(Double _double) {
+    this._double = _double;
+  }
+
+  public FormatTest string(String string) {
+    this.string = string;
+    return this;
+  }
+
+   /**
+   * Get string
+   * @return string
+  **/
+  @ApiModelProperty(value = "")
+  public String getString() {
+    return string;
+  }
+
+  public void setString(String string) {
+    this.string = string;
+  }
+
+  public FormatTest _byte(byte[] _byte) {
+    this._byte = _byte;
+    return this;
+  }
+
+   /**
+   * Get _byte
+   * @return _byte
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public byte[] getByte() {
+    return _byte;
+  }
+
+  public void setByte(byte[] _byte) {
+    this._byte = _byte;
+  }
+
+  public FormatTest binary(byte[] binary) {
+    this.binary = binary;
+    return this;
+  }
+
+   /**
+   * Get binary
+   * @return binary
+  **/
+  @ApiModelProperty(value = "")
+  public byte[] getBinary() {
+    return binary;
+  }
+
+  public void setBinary(byte[] binary) {
+    this.binary = binary;
+  }
+
+  public FormatTest date(LocalDate date) {
+    this.date = date;
+    return this;
+  }
+
+   /**
+   * Get date
+   * @return date
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public LocalDate getDate() {
+    return date;
+  }
+
+  public void setDate(LocalDate date) {
+    this.date = date;
+  }
+
+  public FormatTest dateTime(DateTime dateTime) {
+    this.dateTime = dateTime;
+    return this;
+  }
+
+   /**
+   * Get dateTime
+   * @return dateTime
+  **/
+  @ApiModelProperty(value = "")
+  public DateTime getDateTime() {
+    return dateTime;
+  }
+
+  public void setDateTime(DateTime dateTime) {
+    this.dateTime = dateTime;
+  }
+
+  public FormatTest uuid(UUID uuid) {
+    this.uuid = uuid;
+    return this;
+  }
+
+   /**
+   * Get uuid
+   * @return uuid
+  **/
+  @ApiModelProperty(value = "")
+  public UUID getUuid() {
+    return uuid;
+  }
+
+  public void setUuid(UUID uuid) {
+    this.uuid = uuid;
+  }
+
+  public FormatTest password(String password) {
+    this.password = password;
+    return this;
+  }
+
+   /**
+   * Get password
+   * @return password
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    FormatTest formatTest = (FormatTest) o;
+    return Objects.equals(this.integer, formatTest.integer) &&
+        Objects.equals(this.int32, formatTest.int32) &&
+        Objects.equals(this.int64, formatTest.int64) &&
+        Objects.equals(this.number, formatTest.number) &&
+        Objects.equals(this._float, formatTest._float) &&
+        Objects.equals(this._double, formatTest._double) &&
+        Objects.equals(this.string, formatTest.string) &&
+        Objects.equals(this._byte, formatTest._byte) &&
+        Objects.equals(this.binary, formatTest.binary) &&
+        Objects.equals(this.date, formatTest.date) &&
+        Objects.equals(this.dateTime, formatTest.dateTime) &&
+        Objects.equals(this.uuid, formatTest.uuid) &&
+        Objects.equals(this.password, formatTest.password);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(integer, int32, int64, number, _float, _double, string, _byte, binary, date, dateTime, uuid, password);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class FormatTest {\n");
+    
+    sb.append("    integer: ").append(toIndentedString(integer)).append("\n");
+    sb.append("    int32: ").append(toIndentedString(int32)).append("\n");
+    sb.append("    int64: ").append(toIndentedString(int64)).append("\n");
+    sb.append("    number: ").append(toIndentedString(number)).append("\n");
+    sb.append("    _float: ").append(toIndentedString(_float)).append("\n");
+    sb.append("    _double: ").append(toIndentedString(_double)).append("\n");
+    sb.append("    string: ").append(toIndentedString(string)).append("\n");
+    sb.append("    _byte: ").append(toIndentedString(_byte)).append("\n");
+    sb.append("    binary: ").append(toIndentedString(binary)).append("\n");
+    sb.append("    date: ").append(toIndentedString(date)).append("\n");
+    sb.append("    dateTime: ").append(toIndentedString(dateTime)).append("\n");
+    sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
+    sb.append("    password: ").append(toIndentedString(password)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
new file mode 100644
index 00000000000..5f340931766
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -0,0 +1,95 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * HasOnlyReadOnly
+ */
+
+public class HasOnlyReadOnly {
+  @JsonProperty("bar")
+  private String bar = null;
+
+  @JsonProperty("foo")
+  private String foo = null;
+
+   /**
+   * Get bar
+   * @return bar
+  **/
+  @ApiModelProperty(value = "")
+  public String getBar() {
+    return bar;
+  }
+
+   /**
+   * Get foo
+   * @return foo
+  **/
+  @ApiModelProperty(value = "")
+  public String getFoo() {
+    return foo;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    HasOnlyReadOnly hasOnlyReadOnly = (HasOnlyReadOnly) o;
+    return Objects.equals(this.bar, hasOnlyReadOnly.bar) &&
+        Objects.equals(this.foo, hasOnlyReadOnly.foo);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(bar, foo);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class HasOnlyReadOnly {\n");
+    
+    sb.append("    bar: ").append(toIndentedString(bar)).append("\n");
+    sb.append("    foo: ").append(toIndentedString(foo)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MapTest.java
new file mode 100644
index 00000000000..9a3ad6264a9
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MapTest.java
@@ -0,0 +1,163 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * MapTest
+ */
+
+public class MapTest {
+  @JsonProperty("map_map_of_string")
+  private Map<String, Map<String, String>> mapMapOfString = null;
+
+  /**
+   * Gets or Sets inner
+   */
+  public enum InnerEnum {
+    UPPER("UPPER"),
+    
+    LOWER("lower");
+
+    private String value;
+
+    InnerEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static InnerEnum fromValue(String text) {
+      for (InnerEnum b : InnerEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("map_of_enum_string")
+  private Map<String, InnerEnum> mapOfEnumString = null;
+
+  public MapTest mapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+    this.mapMapOfString = mapMapOfString;
+    return this;
+  }
+
+  public MapTest putMapMapOfStringItem(String key, Map<String, String> mapMapOfStringItem) {
+    if (this.mapMapOfString == null) {
+      this.mapMapOfString = new HashMap<String, Map<String, String>>();
+    }
+    this.mapMapOfString.put(key, mapMapOfStringItem);
+    return this;
+  }
+
+   /**
+   * Get mapMapOfString
+   * @return mapMapOfString
+  **/
+  @ApiModelProperty(value = "")
+  public Map<String, Map<String, String>> getMapMapOfString() {
+    return mapMapOfString;
+  }
+
+  public void setMapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+    this.mapMapOfString = mapMapOfString;
+  }
+
+  public MapTest mapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+    this.mapOfEnumString = mapOfEnumString;
+    return this;
+  }
+
+  public MapTest putMapOfEnumStringItem(String key, InnerEnum mapOfEnumStringItem) {
+    if (this.mapOfEnumString == null) {
+      this.mapOfEnumString = new HashMap<String, InnerEnum>();
+    }
+    this.mapOfEnumString.put(key, mapOfEnumStringItem);
+    return this;
+  }
+
+   /**
+   * Get mapOfEnumString
+   * @return mapOfEnumString
+  **/
+  @ApiModelProperty(value = "")
+  public Map<String, InnerEnum> getMapOfEnumString() {
+    return mapOfEnumString;
+  }
+
+  public void setMapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+    this.mapOfEnumString = mapOfEnumString;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    MapTest mapTest = (MapTest) o;
+    return Objects.equals(this.mapMapOfString, mapTest.mapMapOfString) &&
+        Objects.equals(this.mapOfEnumString, mapTest.mapOfEnumString);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(mapMapOfString, mapOfEnumString);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class MapTest {\n");
+    
+    sb.append("    mapMapOfString: ").append(toIndentedString(mapMapOfString)).append("\n");
+    sb.append("    mapOfEnumString: ").append(toIndentedString(mapOfEnumString)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
new file mode 100644
index 00000000000..9cd0ca678b8
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -0,0 +1,150 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.Animal;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import org.joda.time.DateTime;
+
+/**
+ * MixedPropertiesAndAdditionalPropertiesClass
+ */
+
+public class MixedPropertiesAndAdditionalPropertiesClass {
+  @JsonProperty("uuid")
+  private UUID uuid = null;
+
+  @JsonProperty("dateTime")
+  private DateTime dateTime = null;
+
+  @JsonProperty("map")
+  private Map<String, Animal> map = null;
+
+  public MixedPropertiesAndAdditionalPropertiesClass uuid(UUID uuid) {
+    this.uuid = uuid;
+    return this;
+  }
+
+   /**
+   * Get uuid
+   * @return uuid
+  **/
+  @ApiModelProperty(value = "")
+  public UUID getUuid() {
+    return uuid;
+  }
+
+  public void setUuid(UUID uuid) {
+    this.uuid = uuid;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass dateTime(DateTime dateTime) {
+    this.dateTime = dateTime;
+    return this;
+  }
+
+   /**
+   * Get dateTime
+   * @return dateTime
+  **/
+  @ApiModelProperty(value = "")
+  public DateTime getDateTime() {
+    return dateTime;
+  }
+
+  public void setDateTime(DateTime dateTime) {
+    this.dateTime = dateTime;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass map(Map<String, Animal> map) {
+    this.map = map;
+    return this;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass putMapItem(String key, Animal mapItem) {
+    if (this.map == null) {
+      this.map = new HashMap<String, Animal>();
+    }
+    this.map.put(key, mapItem);
+    return this;
+  }
+
+   /**
+   * Get map
+   * @return map
+  **/
+  @ApiModelProperty(value = "")
+  public Map<String, Animal> getMap() {
+    return map;
+  }
+
+  public void setMap(Map<String, Animal> map) {
+    this.map = map;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    MixedPropertiesAndAdditionalPropertiesClass mixedPropertiesAndAdditionalPropertiesClass = (MixedPropertiesAndAdditionalPropertiesClass) o;
+    return Objects.equals(this.uuid, mixedPropertiesAndAdditionalPropertiesClass.uuid) &&
+        Objects.equals(this.dateTime, mixedPropertiesAndAdditionalPropertiesClass.dateTime) &&
+        Objects.equals(this.map, mixedPropertiesAndAdditionalPropertiesClass.map);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(uuid, dateTime, map);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class MixedPropertiesAndAdditionalPropertiesClass {\n");
+    
+    sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
+    sb.append("    dateTime: ").append(toIndentedString(dateTime)).append("\n");
+    sb.append("    map: ").append(toIndentedString(map)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Model200Response.java
new file mode 100644
index 00000000000..c7437cd4bd5
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Model200Response.java
@@ -0,0 +1,114 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Model for testing model name starting with number
+ */
+@ApiModel(description = "Model for testing model name starting with number")
+
+public class Model200Response {
+  @JsonProperty("name")
+  private Integer name = null;
+
+  @JsonProperty("class")
+  private String propertyClass = null;
+
+  public Model200Response name(Integer name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getName() {
+    return name;
+  }
+
+  public void setName(Integer name) {
+    this.name = name;
+  }
+
+  public Model200Response propertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+    return this;
+  }
+
+   /**
+   * Get propertyClass
+   * @return propertyClass
+  **/
+  @ApiModelProperty(value = "")
+  public String getPropertyClass() {
+    return propertyClass;
+  }
+
+  public void setPropertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Model200Response _200Response = (Model200Response) o;
+    return Objects.equals(this.name, _200Response.name) &&
+        Objects.equals(this.propertyClass, _200Response.propertyClass);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(name, propertyClass);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Model200Response {\n");
+    
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("    propertyClass: ").append(toIndentedString(propertyClass)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelApiResponse.java
new file mode 100644
index 00000000000..3dc02cbefe6
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -0,0 +1,136 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * ModelApiResponse
+ */
+
+public class ModelApiResponse {
+  @JsonProperty("code")
+  private Integer code = null;
+
+  @JsonProperty("type")
+  private String type = null;
+
+  @JsonProperty("message")
+  private String message = null;
+
+  public ModelApiResponse code(Integer code) {
+    this.code = code;
+    return this;
+  }
+
+   /**
+   * Get code
+   * @return code
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getCode() {
+    return code;
+  }
+
+  public void setCode(Integer code) {
+    this.code = code;
+  }
+
+  public ModelApiResponse type(String type) {
+    this.type = type;
+    return this;
+  }
+
+   /**
+   * Get type
+   * @return type
+  **/
+  @ApiModelProperty(value = "")
+  public String getType() {
+    return type;
+  }
+
+  public void setType(String type) {
+    this.type = type;
+  }
+
+  public ModelApiResponse message(String message) {
+    this.message = message;
+    return this;
+  }
+
+   /**
+   * Get message
+   * @return message
+  **/
+  @ApiModelProperty(value = "")
+  public String getMessage() {
+    return message;
+  }
+
+  public void setMessage(String message) {
+    this.message = message;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ModelApiResponse _apiResponse = (ModelApiResponse) o;
+    return Objects.equals(this.code, _apiResponse.code) &&
+        Objects.equals(this.type, _apiResponse.type) &&
+        Objects.equals(this.message, _apiResponse.message);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(code, type, message);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ModelApiResponse {\n");
+    
+    sb.append("    code: ").append(toIndentedString(code)).append("\n");
+    sb.append("    type: ").append(toIndentedString(type)).append("\n");
+    sb.append("    message: ").append(toIndentedString(message)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelReturn.java
new file mode 100644
index 00000000000..5d7ae14f6c4
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -0,0 +1,91 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Model for testing reserved words
+ */
+@ApiModel(description = "Model for testing reserved words")
+
+public class ModelReturn {
+  @JsonProperty("return")
+  private Integer _return = null;
+
+  public ModelReturn _return(Integer _return) {
+    this._return = _return;
+    return this;
+  }
+
+   /**
+   * Get _return
+   * @return _return
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getReturn() {
+    return _return;
+  }
+
+  public void setReturn(Integer _return) {
+    this._return = _return;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ModelReturn _return = (ModelReturn) o;
+    return Objects.equals(this._return, _return._return);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(_return);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ModelReturn {\n");
+    
+    sb.append("    _return: ").append(toIndentedString(_return)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Name.java
new file mode 100644
index 00000000000..368dc4d6d89
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Name.java
@@ -0,0 +1,142 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Model for testing model name same as property name
+ */
+@ApiModel(description = "Model for testing model name same as property name")
+
+public class Name {
+  @JsonProperty("name")
+  private Integer name = null;
+
+  @JsonProperty("snake_case")
+  private Integer snakeCase = null;
+
+  @JsonProperty("property")
+  private String property = null;
+
+  @JsonProperty("123Number")
+  private Integer _123Number = null;
+
+  public Name name(Integer name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public Integer getName() {
+    return name;
+  }
+
+  public void setName(Integer name) {
+    this.name = name;
+  }
+
+   /**
+   * Get snakeCase
+   * @return snakeCase
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getSnakeCase() {
+    return snakeCase;
+  }
+
+  public Name property(String property) {
+    this.property = property;
+    return this;
+  }
+
+   /**
+   * Get property
+   * @return property
+  **/
+  @ApiModelProperty(value = "")
+  public String getProperty() {
+    return property;
+  }
+
+  public void setProperty(String property) {
+    this.property = property;
+  }
+
+   /**
+   * Get _123Number
+   * @return _123Number
+  **/
+  @ApiModelProperty(value = "")
+  public Integer get123Number() {
+    return _123Number;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Name name = (Name) o;
+    return Objects.equals(this.name, name.name) &&
+        Objects.equals(this.snakeCase, name.snakeCase) &&
+        Objects.equals(this.property, name.property) &&
+        Objects.equals(this._123Number, name._123Number);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(name, snakeCase, property, _123Number);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Name {\n");
+    
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("    snakeCase: ").append(toIndentedString(snakeCase)).append("\n");
+    sb.append("    property: ").append(toIndentedString(property)).append("\n");
+    sb.append("    _123Number: ").append(toIndentedString(_123Number)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/NumberOnly.java
new file mode 100644
index 00000000000..ab790ac11e0
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -0,0 +1,91 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import java.math.BigDecimal;
+
+/**
+ * NumberOnly
+ */
+
+public class NumberOnly {
+  @JsonProperty("JustNumber")
+  private BigDecimal justNumber = null;
+
+  public NumberOnly justNumber(BigDecimal justNumber) {
+    this.justNumber = justNumber;
+    return this;
+  }
+
+   /**
+   * Get justNumber
+   * @return justNumber
+  **/
+  @ApiModelProperty(value = "")
+  public BigDecimal getJustNumber() {
+    return justNumber;
+  }
+
+  public void setJustNumber(BigDecimal justNumber) {
+    this.justNumber = justNumber;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    NumberOnly numberOnly = (NumberOnly) o;
+    return Objects.equals(this.justNumber, numberOnly.justNumber);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(justNumber);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class NumberOnly {\n");
+    
+    sb.append("    justNumber: ").append(toIndentedString(justNumber)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Order.java
new file mode 100644
index 00000000000..584904beb71
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Order.java
@@ -0,0 +1,239 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import org.joda.time.DateTime;
+
+/**
+ * Order
+ */
+
+public class Order {
+  @JsonProperty("id")
+  private Long id = null;
+
+  @JsonProperty("petId")
+  private Long petId = null;
+
+  @JsonProperty("quantity")
+  private Integer quantity = null;
+
+  @JsonProperty("shipDate")
+  private DateTime shipDate = null;
+
+  /**
+   * Order Status
+   */
+  public enum StatusEnum {
+    PLACED("placed"),
+    
+    APPROVED("approved"),
+    
+    DELIVERED("delivered");
+
+    private String value;
+
+    StatusEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static StatusEnum fromValue(String text) {
+      for (StatusEnum b : StatusEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("status")
+  private StatusEnum status = null;
+
+  @JsonProperty("complete")
+  private Boolean complete = false;
+
+  public Order id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @ApiModelProperty(value = "")
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public Order petId(Long petId) {
+    this.petId = petId;
+    return this;
+  }
+
+   /**
+   * Get petId
+   * @return petId
+  **/
+  @ApiModelProperty(value = "")
+  public Long getPetId() {
+    return petId;
+  }
+
+  public void setPetId(Long petId) {
+    this.petId = petId;
+  }
+
+  public Order quantity(Integer quantity) {
+    this.quantity = quantity;
+    return this;
+  }
+
+   /**
+   * Get quantity
+   * @return quantity
+  **/
+  @ApiModelProperty(value = "")
+  public Integer getQuantity() {
+    return quantity;
+  }
+
+  public void setQuantity(Integer quantity) {
+    this.quantity = quantity;
+  }
+
+  public Order shipDate(DateTime shipDate) {
+    this.shipDate = shipDate;
+    return this;
+  }
+
+   /**
+   * Get shipDate
+   * @return shipDate
+  **/
+  @ApiModelProperty(value = "")
+  public DateTime getShipDate() {
+    return shipDate;
+  }
+
+  public void setShipDate(DateTime shipDate) {
+    this.shipDate = shipDate;
+  }
+
+  public Order status(StatusEnum status) {
+    this.status = status;
+    return this;
+  }
+
+   /**
+   * Order Status
+   * @return status
+  **/
+  @ApiModelProperty(value = "Order Status")
+  public StatusEnum getStatus() {
+    return status;
+  }
+
+  public void setStatus(StatusEnum status) {
+    this.status = status;
+  }
+
+  public Order complete(Boolean complete) {
+    this.complete = complete;
+    return this;
+  }
+
+   /**
+   * Get complete
+   * @return complete
+  **/
+  @ApiModelProperty(value = "")
+  public Boolean getComplete() {
+    return complete;
+  }
+
+  public void setComplete(Boolean complete) {
+    this.complete = complete;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Order order = (Order) o;
+    return Objects.equals(this.id, order.id) &&
+        Objects.equals(this.petId, order.petId) &&
+        Objects.equals(this.quantity, order.quantity) &&
+        Objects.equals(this.shipDate, order.shipDate) &&
+        Objects.equals(this.status, order.status) &&
+        Objects.equals(this.complete, order.complete);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, petId, quantity, shipDate, status, complete);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Order {\n");
+    
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    petId: ").append(toIndentedString(petId)).append("\n");
+    sb.append("    quantity: ").append(toIndentedString(quantity)).append("\n");
+    sb.append("    shipDate: ").append(toIndentedString(shipDate)).append("\n");
+    sb.append("    status: ").append(toIndentedString(status)).append("\n");
+    sb.append("    complete: ").append(toIndentedString(complete)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/OuterEnum.java
new file mode 100644
index 00000000000..c10da3dc438
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -0,0 +1,54 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets OuterEnum
+ */
+public enum OuterEnum {
+  
+  PLACED("placed"),
+  
+  APPROVED("approved"),
+  
+  DELIVERED("delivered");
+
+  private String value;
+
+  OuterEnum(String value) {
+    this.value = value;
+  }
+
+  @Override
+  @JsonValue
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static OuterEnum fromValue(String text) {
+    for (OuterEnum b : OuterEnum.values()) {
+      if (String.valueOf(b.value).equals(text)) {
+        return b;
+      }
+    }
+    return null;
+  }
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Pet.java
new file mode 100644
index 00000000000..27861fcd13f
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Pet.java
@@ -0,0 +1,255 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import io.swagger.client.model.Category;
+import io.swagger.client.model.Tag;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Pet
+ */
+
+public class Pet {
+  @JsonProperty("id")
+  private Long id = null;
+
+  @JsonProperty("category")
+  private Category category = null;
+
+  @JsonProperty("name")
+  private String name = null;
+
+  @JsonProperty("photoUrls")
+  private List<String> photoUrls = new ArrayList<String>();
+
+  @JsonProperty("tags")
+  private List<Tag> tags = null;
+
+  /**
+   * pet status in the store
+   */
+  public enum StatusEnum {
+    AVAILABLE("available"),
+    
+    PENDING("pending"),
+    
+    SOLD("sold");
+
+    private String value;
+
+    StatusEnum(String value) {
+      this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static StatusEnum fromValue(String text) {
+      for (StatusEnum b : StatusEnum.values()) {
+        if (String.valueOf(b.value).equals(text)) {
+          return b;
+        }
+      }
+      return null;
+    }
+  }
+
+  @JsonProperty("status")
+  private StatusEnum status = null;
+
+  public Pet id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @ApiModelProperty(value = "")
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public Pet category(Category category) {
+    this.category = category;
+    return this;
+  }
+
+   /**
+   * Get category
+   * @return category
+  **/
+  @ApiModelProperty(value = "")
+  public Category getCategory() {
+    return category;
+  }
+
+  public void setCategory(Category category) {
+    this.category = category;
+  }
+
+  public Pet name(String name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @ApiModelProperty(example = "doggie", required = true, value = "")
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public Pet photoUrls(List<String> photoUrls) {
+    this.photoUrls = photoUrls;
+    return this;
+  }
+
+  public Pet addPhotoUrlsItem(String photoUrlsItem) {
+    this.photoUrls.add(photoUrlsItem);
+    return this;
+  }
+
+   /**
+   * Get photoUrls
+   * @return photoUrls
+  **/
+  @ApiModelProperty(required = true, value = "")
+  public List<String> getPhotoUrls() {
+    return photoUrls;
+  }
+
+  public void setPhotoUrls(List<String> photoUrls) {
+    this.photoUrls = photoUrls;
+  }
+
+  public Pet tags(List<Tag> tags) {
+    this.tags = tags;
+    return this;
+  }
+
+  public Pet addTagsItem(Tag tagsItem) {
+    if (this.tags == null) {
+      this.tags = new ArrayList<Tag>();
+    }
+    this.tags.add(tagsItem);
+    return this;
+  }
+
+   /**
+   * Get tags
+   * @return tags
+  **/
+  @ApiModelProperty(value = "")
+  public List<Tag> getTags() {
+    return tags;
+  }
+
+  public void setTags(List<Tag> tags) {
+    this.tags = tags;
+  }
+
+  public Pet status(StatusEnum status) {
+    this.status = status;
+    return this;
+  }
+
+   /**
+   * pet status in the store
+   * @return status
+  **/
+  @ApiModelProperty(value = "pet status in the store")
+  public StatusEnum getStatus() {
+    return status;
+  }
+
+  public void setStatus(StatusEnum status) {
+    this.status = status;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Pet pet = (Pet) o;
+    return Objects.equals(this.id, pet.id) &&
+        Objects.equals(this.category, pet.category) &&
+        Objects.equals(this.name, pet.name) &&
+        Objects.equals(this.photoUrls, pet.photoUrls) &&
+        Objects.equals(this.tags, pet.tags) &&
+        Objects.equals(this.status, pet.status);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, category, name, photoUrls, tags, status);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Pet {\n");
+    
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    category: ").append(toIndentedString(category)).append("\n");
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("    photoUrls: ").append(toIndentedString(photoUrls)).append("\n");
+    sb.append("    tags: ").append(toIndentedString(tags)).append("\n");
+    sb.append("    status: ").append(toIndentedString(status)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
new file mode 100644
index 00000000000..2bea40f1c2e
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -0,0 +1,104 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * ReadOnlyFirst
+ */
+
+public class ReadOnlyFirst {
+  @JsonProperty("bar")
+  private String bar = null;
+
+  @JsonProperty("baz")
+  private String baz = null;
+
+   /**
+   * Get bar
+   * @return bar
+  **/
+  @ApiModelProperty(value = "")
+  public String getBar() {
+    return bar;
+  }
+
+  public ReadOnlyFirst baz(String baz) {
+    this.baz = baz;
+    return this;
+  }
+
+   /**
+   * Get baz
+   * @return baz
+  **/
+  @ApiModelProperty(value = "")
+  public String getBaz() {
+    return baz;
+  }
+
+  public void setBaz(String baz) {
+    this.baz = baz;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ReadOnlyFirst readOnlyFirst = (ReadOnlyFirst) o;
+    return Objects.equals(this.bar, readOnlyFirst.bar) &&
+        Objects.equals(this.baz, readOnlyFirst.baz);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(bar, baz);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ReadOnlyFirst {\n");
+    
+    sb.append("    bar: ").append(toIndentedString(bar)).append("\n");
+    sb.append("    baz: ").append(toIndentedString(baz)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/SpecialModelName.java
new file mode 100644
index 00000000000..561e8bd9a96
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -0,0 +1,90 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * SpecialModelName
+ */
+
+public class SpecialModelName {
+  @JsonProperty("$special[property.name]")
+  private Long specialPropertyName = null;
+
+  public SpecialModelName specialPropertyName(Long specialPropertyName) {
+    this.specialPropertyName = specialPropertyName;
+    return this;
+  }
+
+   /**
+   * Get specialPropertyName
+   * @return specialPropertyName
+  **/
+  @ApiModelProperty(value = "")
+  public Long getSpecialPropertyName() {
+    return specialPropertyName;
+  }
+
+  public void setSpecialPropertyName(Long specialPropertyName) {
+    this.specialPropertyName = specialPropertyName;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    SpecialModelName specialModelName = (SpecialModelName) o;
+    return Objects.equals(this.specialPropertyName, specialModelName.specialPropertyName);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(specialPropertyName);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class SpecialModelName {\n");
+    
+    sb.append("    specialPropertyName: ").append(toIndentedString(specialPropertyName)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Tag.java
new file mode 100644
index 00000000000..205eb6fef17
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/Tag.java
@@ -0,0 +1,113 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * Tag
+ */
+
+public class Tag {
+  @JsonProperty("id")
+  private Long id = null;
+
+  @JsonProperty("name")
+  private String name = null;
+
+  public Tag id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @ApiModelProperty(value = "")
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public Tag name(String name) {
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @ApiModelProperty(value = "")
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Tag tag = (Tag) o;
+    return Objects.equals(this.id, tag.id) &&
+        Objects.equals(this.name, tag.name);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, name);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Tag {\n");
+    
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/User.java
new file mode 100644
index 00000000000..b739854d867
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/main/java/io/swagger/client/model/User.java
@@ -0,0 +1,251 @@
+/*
+ * Swagger Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * OpenAPI spec version: 1.0.0
+ * Contact: apiteam@swagger.io
+ *
+ * NOTE: This class is auto generated by the swagger code generator program.
+ * https://github.com/swagger-api/swagger-codegen.git
+ * Do not edit the class manually.
+ */
+
+
+package io.swagger.client.model;
+
+import java.util.Objects;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+/**
+ * User
+ */
+
+public class User {
+  @JsonProperty("id")
+  private Long id = null;
+
+  @JsonProperty("username")
+  private String username = null;
+
+  @JsonProperty("firstName")
+  private String firstName = null;
+
+  @JsonProperty("lastName")
+  private String lastName = null;
+
+  @JsonProperty("email")
+  private String email = null;
+
+  @JsonProperty("password")
+  private String password = null;
+
+  @JsonProperty("phone")
+  private String phone = null;
+
+  @JsonProperty("userStatus")
+  private Integer userStatus = null;
+
+  public User id(Long id) {
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+  **/
+  @ApiModelProperty(value = "")
+  public Long getId() {
+    return id;
+  }
+
+  public void setId(Long id) {
+    this.id = id;
+  }
+
+  public User username(String username) {
+    this.username = username;
+    return this;
+  }
+
+   /**
+   * Get username
+   * @return username
+  **/
+  @ApiModelProperty(value = "")
+  public String getUsername() {
+    return username;
+  }
+
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+  public User firstName(String firstName) {
+    this.firstName = firstName;
+    return this;
+  }
+
+   /**
+   * Get firstName
+   * @return firstName
+  **/
+  @ApiModelProperty(value = "")
+  public String getFirstName() {
+    return firstName;
+  }
+
+  public void setFirstName(String firstName) {
+    this.firstName = firstName;
+  }
+
+  public User lastName(String lastName) {
+    this.lastName = lastName;
+    return this;
+  }
+
+   /**
+   * Get lastName
+   * @return lastName
+  **/
+  @ApiModelProperty(value = "")
+  public String getLastName() {
+    return lastName;
+  }
+
+  public void setLastName(String lastName) {
+    this.lastName = lastName;
+  }
+
+  public User email(String email) {
+    this.email = email;
+    return this;
+  }
+
+   /**
+   * Get email
+   * @return email
+  **/
+  @ApiModelProperty(value = "")
+  public String getEmail() {
+    return email;
+  }
+
+  public void setEmail(String email) {
+    this.email = email;
+  }
+
+  public User password(String password) {
+    this.password = password;
+    return this;
+  }
+
+   /**
+   * Get password
+   * @return password
+  **/
+  @ApiModelProperty(value = "")
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+
+  public User phone(String phone) {
+    this.phone = phone;
+    return this;
+  }
+
+   /**
+   * Get phone
+   * @return phone
+  **/
+  @ApiModelProperty(value = "")
+  public String getPhone() {
+    return phone;
+  }
+
+  public void setPhone(String phone) {
+    this.phone = phone;
+  }
+
+  public User userStatus(Integer userStatus) {
+    this.userStatus = userStatus;
+    return this;
+  }
+
+   /**
+   * User Status
+   * @return userStatus
+  **/
+  @ApiModelProperty(value = "User Status")
+  public Integer getUserStatus() {
+    return userStatus;
+  }
+
+  public void setUserStatus(Integer userStatus) {
+    this.userStatus = userStatus;
+  }
+
+
+  @Override
+  public boolean equals(java.lang.Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    User user = (User) o;
+    return Objects.equals(this.id, user.id) &&
+        Objects.equals(this.username, user.username) &&
+        Objects.equals(this.firstName, user.firstName) &&
+        Objects.equals(this.lastName, user.lastName) &&
+        Objects.equals(this.email, user.email) &&
+        Objects.equals(this.password, user.password) &&
+        Objects.equals(this.phone, user.phone) &&
+        Objects.equals(this.userStatus, user.userStatus);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, username, firstName, lastName, email, password, phone, userStatus);
+  }
+
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class User {\n");
+    
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    username: ").append(toIndentedString(username)).append("\n");
+    sb.append("    firstName: ").append(toIndentedString(firstName)).append("\n");
+    sb.append("    lastName: ").append(toIndentedString(lastName)).append("\n");
+    sb.append("    email: ").append(toIndentedString(email)).append("\n");
+    sb.append("    password: ").append(toIndentedString(password)).append("\n");
+    sb.append("    phone: ").append(toIndentedString(phone)).append("\n");
+    sb.append("    userStatus: ").append(toIndentedString(userStatus)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(java.lang.Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+  
+}
+
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/PetstoreProfiling.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/PetstoreProfiling.java
new file mode 100644
index 00000000000..c35c2a0f796
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/PetstoreProfiling.java
@@ -0,0 +1,107 @@
+package io.swagger;
+
+import java.io.*;
+import java.util.*;
+
+import io.swagger.client.*;
+import io.swagger.client.api.*;
+import io.swagger.client.model.*;
+import org.springframework.web.client.HttpClientErrorException;
+
+public class PetstoreProfiling {
+    public int total = 5;
+    public Long newPetId = 50003L;
+    public String outputFile = "./petstore_profiling.output";
+
+    public void callApis(int index, List<Map<String, String>> results) {
+        long start;
+
+        try {
+            PetApi petApi = new PetApi();
+
+            /* ADD PET */
+            Pet pet = new Pet();
+            pet.setId(newPetId);
+            pet.setName("profiler");
+            pet.setStatus(Pet.StatusEnum.AVAILABLE);
+            pet.setPhotoUrls(Arrays.asList("http://profiler.com"));
+            // new tag
+            Tag tag = new Tag();
+            tag.setId(newPetId); // use the same id as pet
+            tag.setName("profile tag 1");
+            // new category
+            Category category = new Category();
+            category.setId(newPetId); // use the same id as pet
+            category.setName("profile category 1");
+
+            pet.setTags(Arrays.asList(tag));
+            pet.setCategory(category);
+
+            /* ADD PET */
+            start = System.nanoTime();
+            petApi.addPet(pet);
+            results.add(buildResult(index, "ADD PET", System.nanoTime() - start));
+
+            /* GET PET */
+            start = System.nanoTime();
+            pet = petApi.getPetById(newPetId);
+            results.add(buildResult(index, "GET PET", System.nanoTime() - start));
+
+            /* UPDATE PET WITH FORM */
+            start = System.nanoTime();
+            petApi.updatePetWithForm(newPetId, "new profiler", "sold");
+            results.add(buildResult(index, "UPDATE PET", System.nanoTime() - start));
+
+            /* DELETE PET */
+            start = System.nanoTime();
+            petApi.deletePet(newPetId, "special-key");
+            results.add(buildResult(index, "DELETE PET", System.nanoTime() - start));
+        } catch (HttpClientErrorException e) {
+            System.out.println("Caught error: " + e.getMessage());
+            System.out.println("HTTP response headers: " + e.getResponseHeaders());
+            System.out.println("HTTP response body: " + e.getResponseBodyAsString());
+            System.out.println("HTTP status code: " + e.getStatusCode());
+        }
+    }
+
+    public void run() {
+        System.out.printf("Running profiling... (total: %s)\n", total);
+
+        List<Map<String, String>> results = new ArrayList<Map<String, String>>();
+        for (int i = 0; i < total; i++) {
+            callApis(i, results);
+        }
+        writeResultsToFile(results);
+
+        System.out.printf("Profiling results written to %s\n", outputFile);
+    }
+
+    private Map<String, String> buildResult(int index, String name, long time) {
+        Map<String, String> result = new HashMap<String, String>();
+        result.put("index", String.valueOf(index));
+        result.put("name", name);
+        result.put("time", String.valueOf(time / 1000000000.0));
+        return result;
+    }
+
+    private void writeResultsToFile(List<Map<String, String>> results) {
+        try {
+            File file = new File(outputFile);
+            PrintWriter writer = new PrintWriter(file);
+            String command = "mvn compile test-compile exec:java -Dexec.classpathScope=test -Dexec.mainClass=\"io.swagger.PetstoreProfiling\"";
+            writer.println("# To run the profiling:");
+            writer.printf("#   %s\n\n", command);
+            for (Map<String, String> result : results) {
+                writer.printf("%s: %s => %s\n", result.get("index"), result.get("name"), result.get("time"));
+            }
+            writer.close();
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static void main(String[] args) {
+        final PetstoreProfiling profiling = new PetstoreProfiling();
+        profiling.run();
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/TestUtils.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/TestUtils.java
new file mode 100644
index 00000000000..7ddf142426e
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/TestUtils.java
@@ -0,0 +1,17 @@
+package io.swagger;
+
+import java.util.Random;
+import java.util.concurrent.atomic.AtomicLong;
+
+public class TestUtils {
+    private static final AtomicLong atomicId = createAtomicId();
+
+    public static long nextId() {
+      return atomicId.getAndIncrement();
+    }
+
+    private static AtomicLong createAtomicId() {
+        int baseId = new Random(System.currentTimeMillis()).nextInt(1000000) + 20000;
+        return new AtomicLong((long) baseId);
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/ApiClientTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/ApiClientTest.java
new file mode 100644
index 00000000000..17953e3401a
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/ApiClientTest.java
@@ -0,0 +1,254 @@
+package io.swagger.client;
+
+import io.swagger.client.auth.*;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+import org.junit.*;
+import org.springframework.http.MediaType;
+import org.springframework.util.MultiValueMap;
+
+import static org.junit.Assert.*;
+
+
+public class ApiClientTest {
+    ApiClient apiClient = null;
+
+    @Before
+    public void setup() {
+        apiClient = new ApiClient();
+    }
+
+    /**
+     *
+     */
+    @Test
+    public void testParseAndFormatDate() {
+        // default date format
+        String dateStr = "2015-11-07T03:49:09.356Z";
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T03:49:09.356+00:00")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T03:49:09.356Z")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T05:49:09.356+02:00")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T02:49:09.356-01:00")));
+
+        // custom date format: without milli-seconds, custom time zone
+        DateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
+        format.setTimeZone(TimeZone.getTimeZone("GMT+10"));
+        apiClient.setDateFormat(format);
+        dateStr = "2015-11-07T13:49:09+10:00";
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T03:49:09+00:00")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T03:49:09Z")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T00:49:09-03:00")));
+        assertEquals(dateStr, apiClient.formatDate(apiClient.parseDate("2015-11-07T13:49:09+10:00")));
+    }
+
+    @Test
+    public void testIsJsonMime() {
+        assertFalse(apiClient.isJsonMime((String) null));
+        assertFalse(apiClient.isJsonMime(""));
+        assertFalse(apiClient.isJsonMime("text/plain"));
+        assertFalse(apiClient.isJsonMime("application/xml"));
+        assertFalse(apiClient.isJsonMime("application/jsonp"));
+        assertFalse(apiClient.isJsonMime("example/json"));
+        assertFalse(apiClient.isJsonMime("example/foo+bar+jsonx"));
+        assertFalse(apiClient.isJsonMime("example/foo+bar+xjson"));
+
+        assertTrue(apiClient.isJsonMime("application/json"));
+        assertTrue(apiClient.isJsonMime("application/json; charset=UTF8"));
+        assertTrue(apiClient.isJsonMime("APPLICATION/JSON"));
+
+        assertTrue(apiClient.isJsonMime("application/problem+json"));
+        assertTrue(apiClient.isJsonMime("APPLICATION/PROBLEM+JSON"));
+        assertTrue(apiClient.isJsonMime("application/json\t"));
+        assertTrue(apiClient.isJsonMime("example/foo+bar+json"));
+        assertTrue(apiClient.isJsonMime("example/foo+json;x;y"));
+        assertTrue(apiClient.isJsonMime("example/foo+json\t;"));
+        assertTrue(apiClient.isJsonMime("Example/fOO+JSON"));
+    }
+
+    @Test
+    public void testSelectHeaderAccept() {
+        String[] accepts = {"application/json", "application/xml"};
+        assertEquals(Arrays.asList(MediaType.parseMediaType("application/json")), apiClient.selectHeaderAccept(accepts));
+
+        accepts = new String[]{"APPLICATION/XML", "APPLICATION/JSON"};
+        assertEquals(Arrays.asList(MediaType.parseMediaType("APPLICATION/JSON")), apiClient.selectHeaderAccept(accepts));
+
+        accepts = new String[]{"application/xml", "application/json; charset=UTF8"};
+        assertEquals(Arrays.asList(MediaType.parseMediaType("application/json; charset=UTF8")), apiClient.selectHeaderAccept(accepts));
+
+        accepts = new String[]{"text/plain", "application/xml"};
+        assertEquals(Arrays.asList(MediaType.parseMediaType("text/plain"),MediaType.parseMediaType("application/xml")), apiClient.selectHeaderAccept(accepts));
+
+        accepts = new String[]{};
+        assertNull(apiClient.selectHeaderAccept(accepts));
+    }
+
+    @Test
+    public void testSelectHeaderContentType() {
+        String[] contentTypes = {"application/json", "application/xml"};
+        assertEquals(MediaType.parseMediaType("application/json"), apiClient.selectHeaderContentType(contentTypes));
+
+        contentTypes = new String[]{"APPLICATION/JSON", "APPLICATION/XML"};
+        assertEquals(MediaType.parseMediaType("APPLICATION/JSON"), apiClient.selectHeaderContentType(contentTypes));
+
+        contentTypes = new String[]{"application/xml", "application/json; charset=UTF8"};
+        assertEquals(MediaType.parseMediaType("application/json; charset=UTF8"), apiClient.selectHeaderContentType(contentTypes));
+
+        contentTypes = new String[]{"text/plain", "application/xml"};
+        assertEquals(MediaType.parseMediaType("text/plain"), apiClient.selectHeaderContentType(contentTypes));
+
+        contentTypes = new String[]{};
+        assertEquals(MediaType.parseMediaType("application/json"), apiClient.selectHeaderContentType(contentTypes));
+    }
+
+    @Test
+    public void testGetAuthentications() {
+        Map<String, Authentication> auths = apiClient.getAuthentications();
+
+        Authentication auth = auths.get("api_key");
+        assertNotNull(auth);
+        assertTrue(auth instanceof ApiKeyAuth);
+        ApiKeyAuth apiKeyAuth = (ApiKeyAuth) auth;
+        assertEquals("header", apiKeyAuth.getLocation());
+        assertEquals("api_key", apiKeyAuth.getParamName());
+
+        auth = auths.get("petstore_auth");
+        assertTrue(auth instanceof OAuth);
+        assertSame(auth, apiClient.getAuthentication("petstore_auth"));
+
+        assertNull(auths.get("unknown"));
+
+        try {
+            auths.put("my_auth", new HttpBasicAuth());
+            fail("the authentications returned should not be modifiable");
+        } catch (UnsupportedOperationException e) {
+        }
+    }
+
+    @Ignore("There is no more basic auth in petstore security definitions")
+    @Test
+    public void testSetUsernameAndPassword() {
+        HttpBasicAuth auth = null;
+        for (Authentication _auth : apiClient.getAuthentications().values()) {
+            if (_auth instanceof HttpBasicAuth) {
+                auth = (HttpBasicAuth) _auth;
+                break;
+            }
+        }
+        auth.setUsername(null);
+        auth.setPassword(null);
+
+        apiClient.setUsername("my-username");
+        apiClient.setPassword("my-password");
+        assertEquals("my-username", auth.getUsername());
+        assertEquals("my-password", auth.getPassword());
+
+        // reset values
+        auth.setUsername(null);
+        auth.setPassword(null);
+    }
+
+    @Test
+    public void testSetApiKeyAndPrefix() {
+        ApiKeyAuth auth = null;
+        for (Authentication _auth : apiClient.getAuthentications().values()) {
+            if (_auth instanceof ApiKeyAuth) {
+                auth = (ApiKeyAuth) _auth;
+                break;
+            }
+        }
+        auth.setApiKey(null);
+        auth.setApiKeyPrefix(null);
+
+        apiClient.setApiKey("my-api-key");
+        apiClient.setApiKeyPrefix("Token");
+        assertEquals("my-api-key", auth.getApiKey());
+        assertEquals("Token", auth.getApiKeyPrefix());
+
+        // reset values
+        auth.setApiKey(null);
+        auth.setApiKeyPrefix(null);
+    }
+
+    @Test
+    public void testParameterToMultiValueMapWhenNameIsInvalid() throws Exception {
+        MultiValueMap<String, String> pairs_a = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, null, new Integer(1));
+        MultiValueMap<String, String> pairs_b = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, "", new Integer(1));
+
+        assertTrue(pairs_a.isEmpty());
+        assertTrue(pairs_b.isEmpty());
+    }
+
+    @Test
+    public void testParameterToMultiValueMapWhenValueIsNull() throws Exception {
+        MultiValueMap<String, String> pairs = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, "param-a", null);
+
+        assertTrue(pairs.isEmpty());
+    }
+
+    @Test
+    public void testParameterToMultiValueMapWhenValueIsEmptyStrings() throws Exception {
+
+        // single empty string
+        MultiValueMap<String, String> pairs = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, "param-a", " ");
+        assertEquals(1, pairs.size());
+
+        // list of empty strings
+        List<String> strs = new ArrayList<String>();
+        strs.add(" ");
+        strs.add(" ");
+        strs.add(" ");
+
+        MultiValueMap<String, String> concatStrings = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, "param-a", strs);
+
+        assertEquals(1, concatStrings.get("param-a").size());
+        assertFalse(concatStrings.get("param-a").isEmpty()); // should contain some delimiters
+    }
+
+    @Test
+    public void testParameterToMultiValueMapWhenValueIsNotCollection() throws Exception {
+        String name = "param-a";
+        Integer value = 1;
+
+        MultiValueMap<String, String> pairs = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.CSV, name, value);
+
+        assertEquals(1, pairs.get(name).size());
+        assertEquals(value, Integer.valueOf(pairs.get(name).get(0)));
+    }
+
+    @Test
+    public void testParameterToMultiValueMapWhenValueIsCollection() throws Exception {
+        Map<ApiClient.CollectionFormat, String> collectionFormatMap = new HashMap<ApiClient.CollectionFormat, String>();
+        collectionFormatMap.put(ApiClient.CollectionFormat.CSV, ",");
+        collectionFormatMap.put(ApiClient.CollectionFormat.TSV, "\t");
+        collectionFormatMap.put(ApiClient.CollectionFormat.SSV, " ");
+        collectionFormatMap.put(ApiClient.CollectionFormat.PIPES, "\\|");
+        collectionFormatMap.put(null, ","); // no format, must default to csv
+
+        String name = "param-a";
+
+        List<Object> values = new ArrayList<Object>();
+        values.add("value-a");
+        values.add(123);
+        values.add(new Date());
+
+        // check for multi separately
+        MultiValueMap<String, String> multiValueMap = apiClient.parameterToMultiValueMap(ApiClient.CollectionFormat.MULTI, name, values);
+        assertEquals(values.size(), multiValueMap.get(name).size());
+
+        // all other formats
+        for (ApiClient.CollectionFormat collectionFormat : collectionFormatMap.keySet()) {
+            MultiValueMap<String, String> pairs = apiClient.parameterToMultiValueMap(collectionFormat, name, values);
+
+            assertEquals(1, pairs.size());
+
+            String delimiter = collectionFormatMap.get(collectionFormat);
+            String[] pairValueSplit = pairs.get(name).get(0).split(delimiter);
+
+            assertEquals(values.size(), pairValueSplit.length);
+        }
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/FakeApiTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/FakeApiTest.java
new file mode 100644
index 00000000000..0f9ac02c9fc
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/FakeApiTest.java
@@ -0,0 +1,45 @@
+package io.swagger.client.api;
+
+import java.math.BigDecimal;
+import java.util.Date;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * API tests for FakeApi
+ */
+public class FakeApiTest {
+
+    private final FakeApi api = new FakeApi();
+
+    
+    /**
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     *
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     *
+     */
+    @Test
+    public void testEndpointParametersTest() {
+        BigDecimal number = null;
+        Double _double = null;
+        String string = null;
+        byte[] _byte = null;
+        Integer integer = null;
+        Integer int32 = null;
+        Long int64 = null;
+        Float _float = null;
+        byte[] binary = null;
+        Date date = null;
+        Date dateTime = null;
+        String password = null;
+        // api.testEndpointParameters(number, _double, string, _byte, integer, int32, int64, _float, binary, date, dateTime, password);
+
+        // TODO: test validations
+    }
+    
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/PetApiTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/PetApiTest.java
new file mode 100644
index 00000000000..04b6c04ed28
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/PetApiTest.java
@@ -0,0 +1,309 @@
+package io.swagger.client.api;
+
+import com.fasterxml.jackson.annotation.*;
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.datatype.joda.*;
+
+import io.swagger.TestUtils;
+
+import io.swagger.client.*;
+import io.swagger.client.api.*;
+import io.swagger.client.auth.*;
+import io.swagger.client.model.*;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+import org.junit.*;
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.client.RestClientException;
+
+import static org.junit.Assert.*;
+
+public class PetApiTest {
+    private PetApi api;
+    private ObjectMapper mapper;
+
+    @Before
+    public void setup() {
+        api = new PetApi();
+        // setup authentication
+        ApiKeyAuth apiKeyAuth = (ApiKeyAuth) api.getApiClient().getAuthentication("api_key");
+        apiKeyAuth.setApiKey("special-key");
+    }
+
+    @Test
+    public void testApiClient() {
+        // the default api client is used
+        assertNotNull(api.getApiClient());
+        assertEquals("http://petstore.swagger.io:80/v2", api.getApiClient().getBasePath());
+        assertFalse(api.getApiClient().isDebugging());
+
+        ApiClient oldClient = api.getApiClient();
+
+        ApiClient newClient = new ApiClient();
+        newClient.setBasePath("http://example.com");
+        newClient.setDebugging(true);
+
+        // set api client via constructor
+        api = new PetApi(newClient);
+        assertNotNull(api.getApiClient());
+        assertEquals("http://example.com", api.getApiClient().getBasePath());
+        assertTrue(api.getApiClient().isDebugging());
+
+        // set api client via setter method
+        api.setApiClient(oldClient);
+        assertNotNull(api.getApiClient());
+        assertEquals("http://petstore.swagger.io:80/v2", api.getApiClient().getBasePath());
+        assertFalse(api.getApiClient().isDebugging());
+    }
+
+    @Test
+    public void testCreateAndGetPet() throws Exception {
+        Pet pet = createRandomPet();
+        api.addPet(pet);
+
+        Pet fetched = api.getPetById(pet.getId());
+        assertNotNull(fetched);
+        assertEquals(pet.getId(), fetched.getId());
+        assertNotNull(fetched.getCategory());
+        assertEquals(fetched.getCategory().getName(), pet.getCategory().getName());
+    }
+
+    /*
+    @Test
+    public void testCreateAndGetPetWithByteArray() throws Exception {
+        Pet pet = createRandomPet();
+        byte[] bytes = serializeJson(pet).getBytes();
+        api.addPetUsingByteArray(bytes);
+
+        byte[] fetchedBytes = api.petPetIdtestingByteArraytrueGet(pet.getId());
+        Pet fetched = deserializeJson(new String(fetchedBytes), Pet.class);
+        assertNotNull(fetched);
+        assertEquals(pet.getId(), fetched.getId());
+        assertNotNull(fetched.getCategory());
+        assertEquals(fetched.getCategory().getName(), pet.getCategory().getName());
+    }
+
+    @Test
+    public void testGetPetByIdInObject() throws Exception {
+        Pet pet = new Pet();
+        pet.setId(TestUtils.nextId());
+        pet.setName("pet " + pet.getId());
+
+        Category category = new Category();
+        category.setId(TestUtils.nextId());
+        category.setName("category " + category.getId());
+        pet.setCategory(category);
+
+        pet.setStatus(Pet.StatusEnum.PENDING);
+        List<String> photos = Arrays.asList(new String[]{"http://foo.bar.com/1"});
+        pet.setPhotoUrls(photos);
+
+        api.addPet(pet);
+
+        InlineResponse200 fetched = api.getPetByIdInObject(pet.getId());
+        assertEquals(pet.getId(), fetched.getId());
+        assertEquals(pet.getName(), fetched.getName());
+
+        Object categoryObj = fetched.getCategory();
+        assertNotNull(categoryObj);
+        assertTrue(categoryObj instanceof Map);
+
+        Map categoryMap = (Map) categoryObj;
+        Object categoryIdObj = categoryMap.get("id");
+        assertTrue(categoryIdObj instanceof Integer);
+        Integer categoryIdInt = (Integer) categoryIdObj;
+        assertEquals(category.getId(), Long.valueOf(categoryIdInt));
+        assertEquals(category.getName(), categoryMap.get("name"));
+    }
+    */
+
+    @Test
+    public void testUpdatePet() throws Exception {
+        Pet pet = createRandomPet();
+        pet.setName("programmer");
+
+        api.updatePet(pet);
+
+        Pet fetched = api.getPetById(pet.getId());
+        assertNotNull(fetched);
+        assertEquals(pet.getId(), fetched.getId());
+        assertNotNull(fetched.getCategory());
+        assertEquals(fetched.getCategory().getName(), pet.getCategory().getName());
+    }
+
+    @Test
+    public void testFindPetsByStatus() throws Exception {
+        Pet pet = createRandomPet();
+        pet.setName("programmer");
+        pet.setStatus(Pet.StatusEnum.AVAILABLE);
+
+        api.updatePet(pet);
+
+        List<Pet> pets = api.findPetsByStatus(Arrays.asList(new String[]{"available"}));
+        assertNotNull(pets);
+
+        boolean found = false;
+        for (Pet fetched : pets) {
+            if (fetched.getId().equals(pet.getId())) {
+                found = true;
+                break;
+            }
+        }
+
+        assertTrue(found);
+    }
+
+    @Test
+    public void testFindPetsByTags() throws Exception {
+        Pet pet = createRandomPet();
+        pet.setName("monster");
+        pet.setStatus(Pet.StatusEnum.AVAILABLE);
+
+        List<Tag> tags = new ArrayList<Tag>();
+        Tag tag1 = new Tag();
+        tag1.setName("friendly");
+        tags.add(tag1);
+        pet.setTags(tags);
+
+        api.updatePet(pet);
+
+        List<Pet> pets = api.findPetsByTags(Arrays.asList(new String[]{"friendly"}));
+        assertNotNull(pets);
+
+        boolean found = false;
+        for (Pet fetched : pets) {
+            if (fetched.getId().equals(pet.getId())) {
+                found = true;
+                break;
+            }
+        }
+        assertTrue(found);
+    }
+
+    @Test
+    public void testUpdatePetWithForm() throws Exception {
+        Pet pet = createRandomPet();
+        pet.setName("frank");
+        api.addPet(pet);
+
+        Pet fetched = api.getPetById(pet.getId());
+
+        api.updatePetWithForm(fetched.getId(), "furt", null);
+        Pet updated = api.getPetById(fetched.getId());
+
+        assertEquals(updated.getName(), "furt");
+    }
+
+    @Test
+    public void testDeletePet() throws Exception {
+        Pet pet = createRandomPet();
+        api.addPet(pet);
+
+        Pet fetched = api.getPetById(pet.getId());
+        api.deletePet(fetched.getId(), null);
+
+        try {
+            fetched = api.getPetById(fetched.getId());
+            fail("expected an error");
+        } catch (RestClientException e) {
+            assertTrue(e instanceof HttpClientErrorException);
+            assertEquals(404, ((HttpClientErrorException) e).getStatusCode().value());
+        }
+    }
+
+    @Test
+    public void testUploadFile() throws Exception {
+        Pet pet = createRandomPet();
+        api.addPet(pet);
+
+        File file = new File("hello.txt");
+        BufferedWriter writer = new BufferedWriter(new FileWriter(file));
+        writer.write("Hello world!");
+        writer.close();
+
+        api.uploadFile(pet.getId(), "a test file", new File(file.getAbsolutePath()));
+    }
+
+    @Test
+    public void testEqualsAndHashCode() {
+        Pet pet1 = new Pet();
+        Pet pet2 = new Pet();
+        assertTrue(pet1.equals(pet2));
+        assertTrue(pet2.equals(pet1));
+        assertTrue(pet1.hashCode() == pet2.hashCode());
+        assertTrue(pet1.equals(pet1));
+        assertTrue(pet1.hashCode() == pet1.hashCode());
+
+        pet2.setName("really-happy");
+        pet2.setPhotoUrls(Arrays.asList(new String[]{"http://foo.bar.com/1", "http://foo.bar.com/2"}));
+        assertFalse(pet1.equals(pet2));
+        assertFalse(pet2.equals(pet1));
+        assertFalse(pet1.hashCode() == (pet2.hashCode()));
+        assertTrue(pet2.equals(pet2));
+        assertTrue(pet2.hashCode() == pet2.hashCode());
+
+        pet1.setName("really-happy");
+        pet1.setPhotoUrls(Arrays.asList(new String[]{"http://foo.bar.com/1", "http://foo.bar.com/2"}));
+        assertTrue(pet1.equals(pet2));
+        assertTrue(pet2.equals(pet1));
+        assertTrue(pet1.hashCode() == pet2.hashCode());
+        assertTrue(pet1.equals(pet1));
+        assertTrue(pet1.hashCode() == pet1.hashCode());
+    }
+
+    private Pet createRandomPet() {
+        Pet pet = new Pet();
+        pet.setId(TestUtils.nextId());
+        pet.setName("gorilla");
+
+        Category category = new Category();
+        category.setName("really-happy");
+
+        pet.setCategory(category);
+        pet.setStatus(Pet.StatusEnum.AVAILABLE);
+        List<String> photos = Arrays.asList(new String[]{"http://foo.bar.com/1", "http://foo.bar.com/2"});
+        pet.setPhotoUrls(photos);
+
+        return pet;
+    }
+
+    private String serializeJson(Object o) {
+        if (mapper == null) {
+            mapper = createObjectMapper();
+        }
+        try {
+            return mapper.writeValueAsString(o);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private <T> T deserializeJson(String json, Class<T> klass) {
+        if (mapper == null) {
+            mapper = createObjectMapper();
+        }
+        try {
+            return mapper.readValue(json, klass);
+        } catch (Exception e) {
+          throw new RuntimeException(e);
+        }
+    }
+
+    private ObjectMapper createObjectMapper() {
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        mapper.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
+        mapper.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
+        mapper.registerModule(new JodaModule());
+        return mapper;
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/StoreApiTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/StoreApiTest.java
new file mode 100644
index 00000000000..d1bdd46250a
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/StoreApiTest.java
@@ -0,0 +1,103 @@
+package io.swagger.client.api;
+
+import io.swagger.TestUtils;
+
+import io.swagger.client.*;
+import io.swagger.client.api.*;
+import io.swagger.client.auth.*;
+import io.swagger.client.model.*;
+
+import java.lang.reflect.Field;
+import java.util.Map;
+import java.text.SimpleDateFormat;
+
+import org.joda.time.DateTime;
+import org.joda.time.DateTimeZone;
+import org.junit.*;
+import org.springframework.web.client.RestClientException;
+
+import static org.junit.Assert.*;
+
+public class StoreApiTest {
+    StoreApi api = null;
+
+    @Before
+    public void setup() {
+        api = new StoreApi();
+        // setup authentication
+        ApiKeyAuth apiKeyAuth = (ApiKeyAuth) api.getApiClient().getAuthentication("api_key");
+        apiKeyAuth.setApiKey("special-key");
+        // set custom date format that is used by the petstore server
+        api.getApiClient().setDateFormat(new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ"));
+    }
+
+    @Test
+    public void testGetInventory() throws Exception {
+        Map<String, Integer> inventory = api.getInventory();
+        assertTrue(inventory.keySet().size() > 0);
+    }
+
+    /*
+    @Test
+    public void testGetInventoryInObject() throws Exception {
+        Object inventoryObj = api.getInventoryInObject();
+        assertTrue(inventoryObj instanceof Map);
+
+        Map inventoryMap = (Map) inventoryObj;
+        assertTrue(inventoryMap.keySet().size() > 0);
+
+        Map.Entry firstEntry = (Map.Entry) inventoryMap.entrySet().iterator().next();
+        assertTrue(firstEntry.getKey() instanceof String);
+        assertTrue(firstEntry.getValue() instanceof Integer);
+    }
+    */
+
+    @Test
+    public void testPlaceOrder() throws Exception {
+        Order order = createOrder();
+        api.placeOrder(order);
+
+        Order fetched = api.getOrderById(order.getId());
+        assertEquals(order.getId(), fetched.getId());
+        assertEquals(order.getPetId(), fetched.getPetId());
+        assertEquals(order.getQuantity(), fetched.getQuantity());
+        assertEquals(order.getShipDate().withZone(DateTimeZone.UTC), fetched.getShipDate().withZone(DateTimeZone.UTC));
+    }
+
+    @Test
+    public void testDeleteOrder() throws Exception {
+        Order order = createOrder();
+        api.placeOrder(order);
+
+        Order fetched = api.getOrderById(order.getId());
+        assertEquals(fetched.getId(), order.getId());
+
+        api.deleteOrder(String.valueOf(order.getId()));
+
+        try {
+            api.getOrderById(order.getId());
+            // fail("expected an error");
+        } catch (RestClientException e) {
+            // ok
+        }
+    }
+
+    private Order createOrder() {
+        Order order = new Order();
+        order.setPetId(new Long(200));
+        order.setQuantity(new Integer(13));
+        order.setShipDate(DateTime.now());
+        order.setStatus(Order.StatusEnum.PLACED);
+        order.setComplete(true);
+
+        try {
+          Field idField = Order.class.getDeclaredField("id");
+          idField.setAccessible(true);
+          idField.set(order, TestUtils.nextId());
+        } catch (Exception e) {
+          throw new RuntimeException(e);
+        }
+
+        return order;
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/UserApiTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/UserApiTest.java
new file mode 100644
index 00000000000..c7fb92d2552
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/api/UserApiTest.java
@@ -0,0 +1,88 @@
+package io.swagger.client.api;
+
+import io.swagger.TestUtils;
+
+import io.swagger.client.api.*;
+import io.swagger.client.auth.*;
+import io.swagger.client.model.*;
+
+import java.util.Arrays;
+
+import org.junit.*;
+import static org.junit.Assert.*;
+
+public class UserApiTest {
+    UserApi api = null;
+
+    @Before
+    public void setup() {
+        api = new UserApi();
+        // setup authentication
+        ApiKeyAuth apiKeyAuth = (ApiKeyAuth) api.getApiClient().getAuthentication("api_key");
+        apiKeyAuth.setApiKey("special-key");
+    }
+
+    @Test
+    public void testCreateUser() throws Exception {
+        User user = createUser();
+
+        api.createUser(user);
+
+        User fetched = api.getUserByName(user.getUsername());
+        assertEquals(user.getId(), fetched.getId());
+    }
+
+    @Test
+    public void testCreateUsersWithArray() throws Exception {
+        User user1 = createUser();
+        user1.setUsername("user" + user1.getId());
+        User user2 = createUser();
+        user2.setUsername("user" + user2.getId());
+
+        api.createUsersWithArrayInput(Arrays.asList(new User[]{user1, user2}));
+
+        User fetched = api.getUserByName(user1.getUsername());
+        assertEquals(user1.getId(), fetched.getId());
+    }
+
+    @Test
+    public void testCreateUsersWithList() throws Exception {
+        User user1 = createUser();
+        user1.setUsername("user" + user1.getId());
+        User user2 = createUser();
+        user2.setUsername("user" + user2.getId());
+
+        api.createUsersWithListInput(Arrays.asList(new User[]{user1, user2}));
+
+        User fetched = api.getUserByName(user1.getUsername());
+        assertEquals(user1.getId(), fetched.getId());
+    }
+
+    @Test
+    public void testLoginUser() throws Exception {
+        User user = createUser();
+        api.createUser(user);
+
+        String token = api.loginUser(user.getUsername(), user.getPassword());
+        assertTrue(token.startsWith("logged in user session:"));
+    }
+
+    @Test
+    public void logoutUser() throws Exception {
+        api.logoutUser();
+    }
+
+    private User createUser() {
+        User user = new User();
+        user.setId(TestUtils.nextId());
+        user.setUsername("fred" + user.getId());
+        user.setFirstName("Fred");
+        user.setLastName("Meyer");
+        user.setEmail("fred@fredmeyer.com");
+        user.setPassword("xxXXxx");
+        user.setPhone("408-867-5309");
+        user.setUserStatus(123);
+
+        return user;
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java
new file mode 100644
index 00000000000..c1eabc2fd08
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java
@@ -0,0 +1,47 @@
+package io.swagger.client.auth;
+
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.List;
+
+import org.junit.*;
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import static org.junit.Assert.*;
+
+public class ApiKeyAuthTest {
+    @Test
+    public void testApplyToParamsInQuery() {
+        MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        HttpHeaders headerParams = new HttpHeaders();
+
+        ApiKeyAuth auth = new ApiKeyAuth("query", "api_key");
+        auth.setApiKey("my-api-key");
+        auth.applyToParams(queryParams, headerParams);
+
+        assertEquals(1, queryParams.size());
+        assertEquals("my-api-key", queryParams.get("api_key").get(0));
+
+        // no changes to header parameters
+        assertEquals(0, headerParams.size());
+    }
+
+    @Test
+    public void testApplyToParamsInHeaderWithPrefix() {
+        MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        HttpHeaders headerParams = new HttpHeaders();
+
+        ApiKeyAuth auth = new ApiKeyAuth("header", "X-API-TOKEN");
+        auth.setApiKey("my-api-token");
+        auth.setApiKeyPrefix("Token");
+        auth.applyToParams(queryParams, headerParams);
+
+        // no changes to query parameters
+        assertEquals(0, queryParams.size());
+        assertEquals(1, headerParams.size());
+        assertEquals("Token my-api-token", headerParams.get("X-API-TOKEN").get(0));
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java
new file mode 100644
index 00000000000..877c6cfc77c
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java
@@ -0,0 +1,54 @@
+package io.swagger.client.auth;
+
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.List;
+
+import org.junit.*;
+import org.springframework.http.HttpHeaders;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import static org.junit.Assert.*;
+
+public class HttpBasicAuthTest {
+    HttpBasicAuth auth = null;
+
+    @Before
+    public void setup() {
+        auth = new HttpBasicAuth();
+    }
+
+    @Test
+    public void testApplyToParams() {
+        MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        HttpHeaders headerParams = new HttpHeaders();
+
+        auth.setUsername("my-username");
+        auth.setPassword("my-password");
+        auth.applyToParams(queryParams, headerParams);
+
+        // no changes to query parameters
+        assertEquals(0, queryParams.size());
+        assertEquals(1, headerParams.size());
+        // the string below is base64-encoded result of "my-username:my-password" with the "Basic " prefix
+        String expected = "Basic bXktdXNlcm5hbWU6bXktcGFzc3dvcmQ=";
+        assertEquals(expected, headerParams.get("Authorization").get(0));
+
+        // null username should be treated as empty string
+        auth.setUsername(null);
+        auth.applyToParams(queryParams, headerParams);
+        // the string below is base64-encoded result of ":my-password" with the "Basic " prefix
+        expected = "Basic Om15LXBhc3N3b3Jk";
+        assertEquals(expected, headerParams.get("Authorization").get(1));
+
+        // null password should be treated as empty string
+        auth.setUsername("my-username");
+        auth.setPassword(null);
+        auth.applyToParams(queryParams, headerParams);
+        // the string below is base64-encoded result of "my-username:" with the "Basic " prefix
+        expected = "Basic bXktdXNlcm5hbWU6";
+        assertEquals(expected, headerParams.get("Authorization").get(2));
+    }
+}
diff --git a/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/model/EnumValueTest.java b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/model/EnumValueTest.java
new file mode 100644
index 00000000000..92c41f27523
--- /dev/null
+++ b/samples/client/petstore/java/resttemplate/src/test/java/io/swagger/client/model/EnumValueTest.java
@@ -0,0 +1,61 @@
+package io.swagger.client.model;
+
+import java.io.StringWriter;
+import java.io.PrintWriter;
+import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.List;
+
+import org.junit.*;
+import static org.junit.Assert.*;
+
+import com.fasterxml.jackson.databind.*;
+import com.fasterxml.jackson.databind.SerializationFeature.*;
+
+public class EnumValueTest {
+    @Test
+    public void testEnumClass() {
+        assertEquals(EnumClass._ABC.toString(), "_abc");
+        assertEquals(EnumClass._EFG.toString(), "-efg");
+        assertEquals(EnumClass._XYZ_.toString(), "(xyz)");
+    }
+
+    @Test
+    public void testEnumTest() {
+        // test enum value
+        EnumTest enumTest = new EnumTest();
+        enumTest.setEnumString(EnumTest.EnumStringEnum.LOWER);
+        enumTest.setEnumInteger(EnumTest.EnumIntegerEnum.NUMBER_1);
+        enumTest.setEnumNumber(EnumTest.EnumNumberEnum.NUMBER_1_DOT_1);
+
+        assertEquals(EnumTest.EnumStringEnum.UPPER.toString(), "UPPER");
+        assertEquals(EnumTest.EnumStringEnum.LOWER.toString(), "lower");
+
+        assertEquals(EnumTest.EnumIntegerEnum.NUMBER_1.toString(), "1");
+        assertEquals(EnumTest.EnumIntegerEnum.NUMBER_MINUS_1.toString(), "-1");
+
+        assertEquals(EnumTest.EnumNumberEnum.NUMBER_1_DOT_1.toString(), "1.1");
+        assertEquals(EnumTest.EnumNumberEnum.NUMBER_MINUS_1_DOT_2.toString(), "-1.2");
+
+        try {
+            // test serialization (object => json)
+            ObjectMapper mapper = new ObjectMapper();
+            mapper.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
+            ObjectWriter ow = mapper.writer();
+            String json = ow.writeValueAsString(enumTest);
+            assertEquals(json, "{\"enum_string\":\"lower\",\"enum_integer\":\"1\",\"enum_number\":\"1.1\",\"outerEnum\":null}");
+
+            // test deserialization (json => object)
+            EnumTest fromString = mapper.readValue(json, EnumTest.class);
+            assertEquals(fromString.getEnumString().toString(), "lower");
+            assertEquals(fromString.getEnumInteger().toString(), "1");
+            assertEquals(fromString.getEnumNumber().toString(), "1.1");
+
+        } catch (Exception e) {
+            fail("Exception thrown during serialization/deserialzation of JSON: " + e.getMessage());
+        }
+
+    }
+
+}
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
index cc69fde91ae..d7323321d98 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/AdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Animal.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Animal.java
index 3009c1fb4a6..ca33a257d33 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Animal.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Animal.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
index fce599722f5..75bd0164dcd 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
index 53eb740332b..d037399a96d 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayOfNumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayTest.java
index 0211f83a67e..534508a0835 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ArrayTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.ReadOnlyFirst;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Capitalization.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Capitalization.java
index 2fa81e5d61f..b03ebaed250 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Capitalization.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Capitalization.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Cat.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Cat.java
index 4114f80908a..971388af39f 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Cat.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Cat.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Category.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Category.java
index 75d5aed3dc9..b7da89545fc 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Category.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Category.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ClassModel.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ClassModel.java
index fcc4b60d2c1..0915926c744 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ClassModel.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ClassModel.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Client.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Client.java
index 56ef2a6f917..cc44c6d501c 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Client.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Client.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Dog.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Dog.java
index 5d51058223e..c9a63bca370 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Dog.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Dog.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumArrays.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumArrays.java
index 9222aafcf35..3a9974545c9 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumArrays.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumArrays.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.ArrayList;
@@ -42,6 +43,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -75,6 +77,7 @@ public class EnumArrays {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumClass.java
index d18c22b5eee..91f1219cd1b 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumClass.java
@@ -17,6 +17,7 @@ import java.util.Objects;
 import javax.validation.constraints.*;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets EnumClass
@@ -36,6 +37,7 @@ public enum EnumClass {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumTest.java
index 1c2b7b18f38..385ae403e14 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/EnumTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.OuterEnum;
@@ -43,6 +44,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -76,6 +78,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
@@ -109,6 +112,7 @@ public class EnumTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/FormatTest.java
index 3449c798d9b..2724e763651 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/FormatTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
index dee7f0bd29b..f9439425f59 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/HasOnlyReadOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MapTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MapTest.java
index cd4cf9f2dd6..129391addac 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MapTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MapTest.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.util.HashMap;
@@ -46,6 +47,7 @@ public class MapTest {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
index 9f442e3ab09..1980ab6db88 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Animal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Model200Response.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Model200Response.java
index e01123c868f..90131c365db 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Model200Response.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Model200Response.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelApiResponse.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelApiResponse.java
index f3caa44435d..d9625bfb628 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelApiResponse.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelApiResponse.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelReturn.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelReturn.java
index 8cc3bd148ab..6ad5207dddb 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelReturn.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ModelReturn.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Name.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Name.java
index 78cd0326f32..877d20aaf54 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Name.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Name.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/NumberOnly.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/NumberOnly.java
index c838c8ad9b3..8f447249e1d 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/NumberOnly.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/NumberOnly.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import java.math.BigDecimal;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Order.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Order.java
index c3b34bdc2eb..41e21346156 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Order.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Order.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import org.joda.time.DateTime;
@@ -55,6 +56,7 @@ public class Order {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/OuterEnum.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/OuterEnum.java
index 444a63a6179..75dd96ff168 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/OuterEnum.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/OuterEnum.java
@@ -17,6 +17,7 @@ import java.util.Objects;
 import javax.validation.constraints.*;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 
 /**
  * Gets or Sets OuterEnum
@@ -36,6 +37,7 @@ public enum OuterEnum {
   }
 
   @Override
+  @JsonValue
   public String toString() {
     return String.valueOf(value);
   }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Pet.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Pet.java
index 34761af3005..9d97d0e13fa 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Pet.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Pet.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import io.swagger.client.model.Category;
@@ -61,6 +62,7 @@ public class Pet {
     }
 
     @Override
+    @JsonValue
     public String toString() {
       return String.valueOf(value);
     }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ReadOnlyFirst.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
index 72bed951737..8b6568795cb 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/ReadOnlyFirst.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/SpecialModelName.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/SpecialModelName.java
index 058d6156f48..8684e45fe91 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/SpecialModelName.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/SpecialModelName.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Tag.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Tag.java
index 97110c9fffd..af2902fa877 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Tag.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/Tag.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/User.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/User.java
index 4827937f0e6..f34053f501e 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/User.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/io/swagger/client/model/User.java
@@ -16,6 +16,7 @@ package io.swagger.client.model;
 import java.util.Objects;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import javax.validation.constraints.*;