Merge remote-tracking branch 'origin/master' into 7.0.x

samples/client/echo_api/java/apache-httpclient/README.md

@@ -106,11 +106,15 @@ All URIs are relative to *http://localhost:3000*
 Class | Method | HTTP request | Description
 ------------ | ------------- | ------------- | -------------
 *BodyApi* | [**testBinaryGif**](docs/BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body
+*BodyApi* | [**testBodyApplicationOctetstreamBinary**](docs/BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s)
+*BodyApi* | [**testEchoBodyFreeFormObjectResponseString**](docs/BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object
 *BodyApi* | [**testEchoBodyPet**](docs/BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s)
 *BodyApi* | [**testEchoBodyPetResponseString**](docs/BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body
+*BodyApi* | [**testEchoBodyTagResponseString**](docs/BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body)
 *FormApi* | [**testFormIntegerBooleanString**](docs/FormApi.md#testFormIntegerBooleanString) | **POST** /form/integer/boolean/string | Test form parameter(s)
 *HeaderApi* | [**testHeaderIntegerBooleanString**](docs/HeaderApi.md#testHeaderIntegerBooleanString) | **GET** /header/integer/boolean/string | Test header parameter(s)
 *PathApi* | [**testsPathStringPathStringIntegerPathInteger**](docs/PathApi.md#testsPathStringPathStringIntegerPathInteger) | **GET** /path/string/{path_string}/integer/{path_integer} | Test path parameter(s)
+*QueryApi* | [**testEnumRefString**](docs/QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s)
 *QueryApi* | [**testQueryDatetimeDateString**](docs/QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s)
 *QueryApi* | [**testQueryIntegerBooleanString**](docs/QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s)
 *QueryApi* | [**testQueryStyleDeepObjectExplodeTrueObject**](docs/QueryApi.md#testQueryStyleDeepObjectExplodeTrueObject) | **GET** /query/style_deepObject/explode_true/object | Test query parameter(s)
@@ -136,10 +140,11 @@ Class | Method | HTTP request | Description
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)
 
 
+<a id="documentation-for-authorization"></a>
 ## Documentation for Authorization
 
-All endpoints do not require authorization.
-Authentication schemes defined for the API:
+Endpoints do not require authorization.
+
 
 ## Recommendation
 

samples/client/echo_api/java/apache-httpclient/api/openapi.yaml

@@ -99,6 +99,29 @@ paths:
       tags:
       - header
       x-accepts: text/plain
+  /query/enum_ref_string:
+    get:
+      description: Test query parameter(s)
+      operationId: test/enum_ref_string
+      parameters:
+      - explode: true
+        in: query
+        name: enum_ref_string_query
+        required: false
+        schema:
+          $ref: '#/components/schemas/StringEnumRef'
+        style: form
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test query parameter(s)
+      tags:
+      - query
+      x-accepts: text/plain
   /query/datetime/date/string:
     get:
       description: Test query parameter(s)
@@ -290,6 +313,28 @@ paths:
       tags:
       - query
       x-accepts: text/plain
+  /body/application/octetstream/binary:
+    post:
+      description: Test body parameter(s)
+      operationId: test/body/application/octetstream/binary
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              format: binary
+              type: string
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test body parameter(s)
+      tags:
+      - body
+      x-content-type: application/octet-stream
+      x-accepts: text/plain
   /echo/body/Pet:
     post:
       description: Test body parameter(s)
@@ -326,6 +371,46 @@ paths:
       - body
       x-content-type: application/json
       x-accepts: text/plain
+  /echo/body/Tag/response_string:
+    post:
+      description: Test empty json (request body)
+      operationId: test/echo/body/Tag/response_string
+      requestBody:
+        $ref: '#/components/requestBodies/Tag'
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test empty json (request body)
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
+  /echo/body/FreeFormObject/response_string:
+    post:
+      description: Test free form object
+      operationId: test/echo/body/FreeFormObject/response_string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+        description: Free form object
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test free form object
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
   /binary/gif:
     post:
       description: Test binary (gif) response body
@@ -350,6 +435,12 @@ components:
           schema:
             $ref: '#/components/schemas/Pet'
       description: Pet object that needs to be added to the store
+    Tag:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Tag'
+      description: Tag object
   schemas:
     Category:
       example:

samples/client/echo_api/java/apache-httpclient/docs/BodyApi.md

@@ -5,8 +5,11 @@ All URIs are relative to *http://localhost:3000*
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
 | [**testBinaryGif**](BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body |
+| [**testBodyApplicationOctetstreamBinary**](BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s) |
+| [**testEchoBodyFreeFormObjectResponseString**](BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object |
 | [**testEchoBodyPet**](BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s) |
 | [**testEchoBodyPetResponseString**](BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body |
+| [**testEchoBodyTagResponseString**](BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body) |
 
 
 
@@ -72,6 +75,138 @@ No authorization required
 | **200** | Successful operation |  -  |
 
 
+## testBodyApplicationOctetstreamBinary
+
+> String testBodyApplicationOctetstreamBinary(body)
+
+Test body parameter(s)
+
+Test body parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        File body = new File("/path/to/file"); // File | 
+        try {
+            String result = apiInstance.testBodyApplicationOctetstreamBinary(body);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testBodyApplicationOctetstreamBinary");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **File**|  | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/octet-stream
+- **Accept**: text/plain
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
+## testEchoBodyFreeFormObjectResponseString
+
+> String testEchoBodyFreeFormObjectResponseString(body)
+
+Test free form object
+
+Test free form object
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Object body = null; // Object | Free form object
+        try {
+            String result = apiInstance.testEchoBodyFreeFormObjectResponseString(body);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyFreeFormObjectResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **Object**| Free form object | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
 ## testEchoBodyPet
 
 > Pet testEchoBodyPet(pet)
@@ -203,3 +338,69 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
+
+## testEchoBodyTagResponseString
+
+> String testEchoBodyTagResponseString(tag)
+
+Test empty json (request body)
+
+Test empty json (request body)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Tag tag = new Tag(); // Tag | Tag object
+        try {
+            String result = apiInstance.testEchoBodyTagResponseString(tag);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyTagResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **tag** | [**Tag**](Tag.md)| Tag object | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+

samples/client/echo_api/java/apache-httpclient/docs/QueryApi.md

@@ -4,6 +4,7 @@ All URIs are relative to *http://localhost:3000*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
+| [**testEnumRefString**](QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s) |
 | [**testQueryDatetimeDateString**](QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s) |
 | [**testQueryIntegerBooleanString**](QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s) |
 | [**testQueryStyleDeepObjectExplodeTrueObject**](QueryApi.md#testQueryStyleDeepObjectExplodeTrueObject) | **GET** /query/style_deepObject/explode_true/object | Test query parameter(s) |
@@ -14,6 +15,72 @@ All URIs are relative to *http://localhost:3000*
 
 
 
+## testEnumRefString
+
+> String testEnumRefString(enumRefStringQuery)
+
+Test query parameter(s)
+
+Test query parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.QueryApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        QueryApi apiInstance = new QueryApi(defaultClient);
+        StringEnumRef enumRefStringQuery = StringEnumRef.fromValue("success"); // StringEnumRef | 
+        try {
+            String result = apiInstance.testEnumRefString(enumRefStringQuery);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling QueryApi#testEnumRefString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **enumRefStringQuery** | [**StringEnumRef**](.md)|  | [optional] [enum: success, failure, unclassified] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: text/plain
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
 ## testQueryDatetimeDateString
 
 > String testQueryDatetimeDateString(datetimeQuery, dateQuery, stringQuery)

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/Configuration.java

@@ -15,6 +15,8 @@ package org.openapitools.client;
 
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class Configuration {
+    public static final String VERSION = "0.1.0";
+
     private static ApiClient defaultApiClient = new ApiClient();
 
     /**

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/api/BodyApi.java

@@ -22,6 +22,7 @@ import org.openapitools.client.Pair;
 
 import java.io.File;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.Tag;
 
 
 import java.util.ArrayList;
@@ -120,6 +121,144 @@ public class BodyApi {
     );
   }
 
+  /**
+   * Test body parameter(s)
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testBodyApplicationOctetstreamBinary(File body) throws ApiException {
+    return this.testBodyApplicationOctetstreamBinary(body, Collections.emptyMap());
+  }
+
+
+  /**
+   * Test body parameter(s)
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @param additionalHeaders additionalHeaders for this call
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testBodyApplicationOctetstreamBinary(File body, Map<String, String> additionalHeaders) throws ApiException {
+    Object localVarPostBody = body;
+    
+    // create path and map variables
+    String localVarPath = "/body/application/octetstream/binary";
+
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    localVarHeaderParams.putAll(additionalHeaders);
+
+    
+    
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/octet-stream"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<String> localVarReturnType = new TypeReference<String>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+
+  /**
+   * Test free form object
+   * Test free form object
+   * @param body Free form object (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyFreeFormObjectResponseString(Object body) throws ApiException {
+    return this.testEchoBodyFreeFormObjectResponseString(body, Collections.emptyMap());
+  }
+
+
+  /**
+   * Test free form object
+   * Test free form object
+   * @param body Free form object (optional)
+   * @param additionalHeaders additionalHeaders for this call
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyFreeFormObjectResponseString(Object body, Map<String, String> additionalHeaders) throws ApiException {
+    Object localVarPostBody = body;
+    
+    // create path and map variables
+    String localVarPath = "/echo/body/FreeFormObject/response_string";
+
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    localVarHeaderParams.putAll(additionalHeaders);
+
+    
+    
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<String> localVarReturnType = new TypeReference<String>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+
   /**
    * Test body parameter(s)
    * Test body parameter(s)
@@ -228,6 +367,75 @@ public class BodyApi {
 
     
     
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<String> localVarReturnType = new TypeReference<String>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+
+  /**
+   * Test empty json (request body)
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyTagResponseString(Tag tag) throws ApiException {
+    return this.testEchoBodyTagResponseString(tag, Collections.emptyMap());
+  }
+
+
+  /**
+   * Test empty json (request body)
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @param additionalHeaders additionalHeaders for this call
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyTagResponseString(Tag tag, Map<String, String> additionalHeaders) throws ApiException {
+    Object localVarPostBody = tag;
+    
+    // create path and map variables
+    String localVarPath = "/echo/body/Tag/response_string";
+
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    localVarHeaderParams.putAll(additionalHeaders);
+
+    
+    
     final String[] localVarAccepts = {
       "text/plain"
     };

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/api/QueryApi.java

@@ -24,6 +24,7 @@ import org.openapitools.client.model.DataQuery;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.client.model.TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter;
 import org.openapitools.client.model.TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter;
 
@@ -57,6 +58,76 @@ public class QueryApi {
     this.apiClient = apiClient;
   }
 
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEnumRefString(StringEnumRef enumRefStringQuery) throws ApiException {
+    return this.testEnumRefString(enumRefStringQuery, Collections.emptyMap());
+  }
+
+
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @param additionalHeaders additionalHeaders for this call
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEnumRefString(StringEnumRef enumRefStringQuery, Map<String, String> additionalHeaders) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/query/enum_ref_string";
+
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    localVarQueryParams.addAll(apiClient.parameterToPair("enum_ref_string_query", enumRefStringQuery));
+    
+    localVarHeaderParams.putAll(additionalHeaders);
+
+    
+    
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<String> localVarReturnType = new TypeReference<String>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "GET",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+
   /**
    * Test query parameter(s)
    * Test query parameter(s)

samples/client/echo_api/java/feign-gson/api/openapi.yaml

@@ -99,6 +99,29 @@ paths:
       tags:
       - header
       x-accepts: text/plain
+  /query/enum_ref_string:
+    get:
+      description: Test query parameter(s)
+      operationId: test/enum_ref_string
+      parameters:
+      - explode: true
+        in: query
+        name: enum_ref_string_query
+        required: false
+        schema:
+          $ref: '#/components/schemas/StringEnumRef'
+        style: form
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test query parameter(s)
+      tags:
+      - query
+      x-accepts: text/plain
   /query/datetime/date/string:
     get:
       description: Test query parameter(s)
@@ -290,6 +313,28 @@ paths:
       tags:
       - query
       x-accepts: text/plain
+  /body/application/octetstream/binary:
+    post:
+      description: Test body parameter(s)
+      operationId: test/body/application/octetstream/binary
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              format: binary
+              type: string
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test body parameter(s)
+      tags:
+      - body
+      x-content-type: application/octet-stream
+      x-accepts: text/plain
   /echo/body/Pet:
     post:
       description: Test body parameter(s)
@@ -326,6 +371,46 @@ paths:
       - body
       x-content-type: application/json
       x-accepts: text/plain
+  /echo/body/Tag/response_string:
+    post:
+      description: Test empty json (request body)
+      operationId: test/echo/body/Tag/response_string
+      requestBody:
+        $ref: '#/components/requestBodies/Tag'
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test empty json (request body)
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
+  /echo/body/FreeFormObject/response_string:
+    post:
+      description: Test free form object
+      operationId: test/echo/body/FreeFormObject/response_string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+        description: Free form object
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test free form object
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
   /binary/gif:
     post:
       description: Test binary (gif) response body
@@ -350,6 +435,12 @@ components:
           schema:
             $ref: '#/components/schemas/Pet'
       description: Pet object that needs to be added to the store
+    Tag:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Tag'
+      description: Tag object
   schemas:
     Category:
       example:

samples/client/echo_api/java/feign-gson/src/main/java/org/openapitools/client/api/BodyApi.java

@@ -6,6 +6,7 @@ import org.openapitools.client.model.ApiResponse;
 
 import java.io.File;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.Tag;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -42,6 +43,64 @@ public interface BodyApi extends ApiClient.Api {
 
 
 
+  /**
+   * Test body parameter(s)
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @return String
+   */
+  @RequestLine("POST /body/application/octetstream/binary")
+  @Headers({
+    "Content-Type: application/octet-stream",
+    "Accept: text/plain",
+  })
+  String testBodyApplicationOctetstreamBinary(File body);
+
+  /**
+   * Test body parameter(s)
+   * Similar to <code>testBodyApplicationOctetstreamBinary</code> but it also returns the http response headers .
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @return A ApiResponse that wraps the response boyd and the http headers.
+   */
+  @RequestLine("POST /body/application/octetstream/binary")
+  @Headers({
+    "Content-Type: application/octet-stream",
+    "Accept: text/plain",
+  })
+  ApiResponse<String> testBodyApplicationOctetstreamBinaryWithHttpInfo(File body);
+
+
+
+  /**
+   * Test free form object
+   * Test free form object
+   * @param body Free form object (optional)
+   * @return String
+   */
+  @RequestLine("POST /echo/body/FreeFormObject/response_string")
+  @Headers({
+    "Content-Type: application/json",
+    "Accept: text/plain",
+  })
+  String testEchoBodyFreeFormObjectResponseString(Object body);
+
+  /**
+   * Test free form object
+   * Similar to <code>testEchoBodyFreeFormObjectResponseString</code> but it also returns the http response headers .
+   * Test free form object
+   * @param body Free form object (optional)
+   * @return A ApiResponse that wraps the response boyd and the http headers.
+   */
+  @RequestLine("POST /echo/body/FreeFormObject/response_string")
+  @Headers({
+    "Content-Type: application/json",
+    "Accept: text/plain",
+  })
+  ApiResponse<String> testEchoBodyFreeFormObjectResponseStringWithHttpInfo(Object body);
+
+
+
   /**
    * Test body parameter(s)
    * Test body parameter(s)
@@ -99,4 +158,33 @@ public interface BodyApi extends ApiClient.Api {
   ApiResponse<String> testEchoBodyPetResponseStringWithHttpInfo(Pet pet);
 
 
+
+  /**
+   * Test empty json (request body)
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @return String
+   */
+  @RequestLine("POST /echo/body/Tag/response_string")
+  @Headers({
+    "Content-Type: application/json",
+    "Accept: text/plain",
+  })
+  String testEchoBodyTagResponseString(Tag tag);
+
+  /**
+   * Test empty json (request body)
+   * Similar to <code>testEchoBodyTagResponseString</code> but it also returns the http response headers .
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @return A ApiResponse that wraps the response boyd and the http headers.
+   */
+  @RequestLine("POST /echo/body/Tag/response_string")
+  @Headers({
+    "Content-Type: application/json",
+    "Accept: text/plain",
+  })
+  ApiResponse<String> testEchoBodyTagResponseStringWithHttpInfo(Tag tag);
+
+
 }

samples/client/echo_api/java/feign-gson/src/main/java/org/openapitools/client/api/QueryApi.java

@@ -8,6 +8,7 @@ import org.openapitools.client.model.DataQuery;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.client.model.TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter;
 import org.openapitools.client.model.TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter;
 
@@ -21,6 +22,83 @@ import feign.*;
 public interface QueryApi extends ApiClient.Api {
 
 
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @return String
+   */
+  @RequestLine("GET /query/enum_ref_string?enum_ref_string_query={enumRefStringQuery}")
+  @Headers({
+    "Accept: text/plain",
+  })
+  String testEnumRefString(@Param("enumRefStringQuery") StringEnumRef enumRefStringQuery);
+
+  /**
+   * Test query parameter(s)
+   * Similar to <code>testEnumRefString</code> but it also returns the http response headers .
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @return A ApiResponse that wraps the response boyd and the http headers.
+   */
+  @RequestLine("GET /query/enum_ref_string?enum_ref_string_query={enumRefStringQuery}")
+  @Headers({
+    "Accept: text/plain",
+  })
+  ApiResponse<String> testEnumRefStringWithHttpInfo(@Param("enumRefStringQuery") StringEnumRef enumRefStringQuery);
+
+
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * Note, this is equivalent to the other <code>testEnumRefString</code> method,
+   * but with the query parameters collected into a single Map parameter. This
+   * is convenient for services with optional query parameters, especially when
+   * used with the {@link TestEnumRefStringQueryParams} class that allows for
+   * building up this map in a fluent style.
+   * @param queryParams Map of query parameters as name-value pairs
+   *   <p>The following elements may be specified in the query map:</p>
+   *   <ul>
+   *   <li>enumRefStringQuery -  (optional)</li>
+   *   </ul>
+   * @return String
+   */
+  @RequestLine("GET /query/enum_ref_string?enum_ref_string_query={enumRefStringQuery}")
+  @Headers({
+  "Accept: text/plain",
+  })
+  String testEnumRefString(@QueryMap(encoded=true) TestEnumRefStringQueryParams queryParams);
+
+  /**
+  * Test query parameter(s)
+  * Test query parameter(s)
+  * Note, this is equivalent to the other <code>testEnumRefString</code> that receives the query parameters as a map,
+  * but this one also exposes the Http response headers
+      * @param queryParams Map of query parameters as name-value pairs
+      *   <p>The following elements may be specified in the query map:</p>
+      *   <ul>
+          *   <li>enumRefStringQuery -  (optional)</li>
+      *   </ul>
+          * @return String
+      */
+      @RequestLine("GET /query/enum_ref_string?enum_ref_string_query={enumRefStringQuery}")
+      @Headers({
+    "Accept: text/plain",
+      })
+   ApiResponse<String> testEnumRefStringWithHttpInfo(@QueryMap(encoded=true) TestEnumRefStringQueryParams queryParams);
+
+
+   /**
+   * A convenience class for generating query parameters for the
+   * <code>testEnumRefString</code> method in a fluent style.
+   */
+  public static class TestEnumRefStringQueryParams extends HashMap<String, Object> {
+    public TestEnumRefStringQueryParams enumRefStringQuery(final StringEnumRef value) {
+      put("enum_ref_string_query", EncodingUtils.encode(value));
+      return this;
+    }
+  }
+
   /**
    * Test query parameter(s)
    * Test query parameter(s)

samples/client/echo_api/java/native/README.md

@@ -106,16 +106,24 @@ Class | Method | HTTP request | Description
 ------------ | ------------- | ------------- | -------------
 *BodyApi* | [**testBinaryGif**](docs/BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body
 *BodyApi* | [**testBinaryGifWithHttpInfo**](docs/BodyApi.md#testBinaryGifWithHttpInfo) | **POST** /binary/gif | Test binary (gif) response body
+*BodyApi* | [**testBodyApplicationOctetstreamBinary**](docs/BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s)
+*BodyApi* | [**testBodyApplicationOctetstreamBinaryWithHttpInfo**](docs/BodyApi.md#testBodyApplicationOctetstreamBinaryWithHttpInfo) | **POST** /body/application/octetstream/binary | Test body parameter(s)
+*BodyApi* | [**testEchoBodyFreeFormObjectResponseString**](docs/BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object
+*BodyApi* | [**testEchoBodyFreeFormObjectResponseStringWithHttpInfo**](docs/BodyApi.md#testEchoBodyFreeFormObjectResponseStringWithHttpInfo) | **POST** /echo/body/FreeFormObject/response_string | Test free form object
 *BodyApi* | [**testEchoBodyPet**](docs/BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s)
 *BodyApi* | [**testEchoBodyPetWithHttpInfo**](docs/BodyApi.md#testEchoBodyPetWithHttpInfo) | **POST** /echo/body/Pet | Test body parameter(s)
 *BodyApi* | [**testEchoBodyPetResponseString**](docs/BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body
 *BodyApi* | [**testEchoBodyPetResponseStringWithHttpInfo**](docs/BodyApi.md#testEchoBodyPetResponseStringWithHttpInfo) | **POST** /echo/body/Pet/response_string | Test empty response body
+*BodyApi* | [**testEchoBodyTagResponseString**](docs/BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body)
+*BodyApi* | [**testEchoBodyTagResponseStringWithHttpInfo**](docs/BodyApi.md#testEchoBodyTagResponseStringWithHttpInfo) | **POST** /echo/body/Tag/response_string | Test empty json (request body)
 *FormApi* | [**testFormIntegerBooleanString**](docs/FormApi.md#testFormIntegerBooleanString) | **POST** /form/integer/boolean/string | Test form parameter(s)
 *FormApi* | [**testFormIntegerBooleanStringWithHttpInfo**](docs/FormApi.md#testFormIntegerBooleanStringWithHttpInfo) | **POST** /form/integer/boolean/string | Test form parameter(s)
 *HeaderApi* | [**testHeaderIntegerBooleanString**](docs/HeaderApi.md#testHeaderIntegerBooleanString) | **GET** /header/integer/boolean/string | Test header parameter(s)
 *HeaderApi* | [**testHeaderIntegerBooleanStringWithHttpInfo**](docs/HeaderApi.md#testHeaderIntegerBooleanStringWithHttpInfo) | **GET** /header/integer/boolean/string | Test header parameter(s)
 *PathApi* | [**testsPathStringPathStringIntegerPathInteger**](docs/PathApi.md#testsPathStringPathStringIntegerPathInteger) | **GET** /path/string/{path_string}/integer/{path_integer} | Test path parameter(s)
 *PathApi* | [**testsPathStringPathStringIntegerPathIntegerWithHttpInfo**](docs/PathApi.md#testsPathStringPathStringIntegerPathIntegerWithHttpInfo) | **GET** /path/string/{path_string}/integer/{path_integer} | Test path parameter(s)
+*QueryApi* | [**testEnumRefString**](docs/QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s)
+*QueryApi* | [**testEnumRefStringWithHttpInfo**](docs/QueryApi.md#testEnumRefStringWithHttpInfo) | **GET** /query/enum_ref_string | Test query parameter(s)
 *QueryApi* | [**testQueryDatetimeDateString**](docs/QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s)
 *QueryApi* | [**testQueryDatetimeDateStringWithHttpInfo**](docs/QueryApi.md#testQueryDatetimeDateStringWithHttpInfo) | **GET** /query/datetime/date/string | Test query parameter(s)
 *QueryApi* | [**testQueryIntegerBooleanString**](docs/QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s)
@@ -148,10 +156,11 @@ Class | Method | HTTP request | Description
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)
 
 
+<a id="documentation-for-authorization"></a>
 ## Documentation for Authorization
 
-All endpoints do not require authorization.
-Authentication schemes defined for the API:
+Endpoints do not require authorization.
+
 
 ## Recommendation
 

samples/client/echo_api/java/native/api/openapi.yaml

@@ -99,6 +99,29 @@ paths:
       tags:
       - header
       x-accepts: text/plain
+  /query/enum_ref_string:
+    get:
+      description: Test query parameter(s)
+      operationId: test/enum_ref_string
+      parameters:
+      - explode: true
+        in: query
+        name: enum_ref_string_query
+        required: false
+        schema:
+          $ref: '#/components/schemas/StringEnumRef'
+        style: form
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test query parameter(s)
+      tags:
+      - query
+      x-accepts: text/plain
   /query/datetime/date/string:
     get:
       description: Test query parameter(s)
@@ -290,6 +313,28 @@ paths:
       tags:
       - query
       x-accepts: text/plain
+  /body/application/octetstream/binary:
+    post:
+      description: Test body parameter(s)
+      operationId: test/body/application/octetstream/binary
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              format: binary
+              type: string
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test body parameter(s)
+      tags:
+      - body
+      x-content-type: application/octet-stream
+      x-accepts: text/plain
   /echo/body/Pet:
     post:
       description: Test body parameter(s)
@@ -326,6 +371,46 @@ paths:
       - body
       x-content-type: application/json
       x-accepts: text/plain
+  /echo/body/Tag/response_string:
+    post:
+      description: Test empty json (request body)
+      operationId: test/echo/body/Tag/response_string
+      requestBody:
+        $ref: '#/components/requestBodies/Tag'
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test empty json (request body)
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
+  /echo/body/FreeFormObject/response_string:
+    post:
+      description: Test free form object
+      operationId: test/echo/body/FreeFormObject/response_string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+        description: Free form object
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test free form object
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
   /binary/gif:
     post:
       description: Test binary (gif) response body
@@ -350,6 +435,12 @@ components:
           schema:
             $ref: '#/components/schemas/Pet'
       description: Pet object that needs to be added to the store
+    Tag:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Tag'
+      description: Tag object
   schemas:
     Category:
       example:

samples/client/echo_api/java/native/docs/BodyApi.md

@@ -6,10 +6,16 @@ All URIs are relative to *http://localhost:3000*
 |------------- | ------------- | -------------|
 | [**testBinaryGif**](BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body |
 | [**testBinaryGifWithHttpInfo**](BodyApi.md#testBinaryGifWithHttpInfo) | **POST** /binary/gif | Test binary (gif) response body |
+| [**testBodyApplicationOctetstreamBinary**](BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s) |
+| [**testBodyApplicationOctetstreamBinaryWithHttpInfo**](BodyApi.md#testBodyApplicationOctetstreamBinaryWithHttpInfo) | **POST** /body/application/octetstream/binary | Test body parameter(s) |
+| [**testEchoBodyFreeFormObjectResponseString**](BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object |
+| [**testEchoBodyFreeFormObjectResponseStringWithHttpInfo**](BodyApi.md#testEchoBodyFreeFormObjectResponseStringWithHttpInfo) | **POST** /echo/body/FreeFormObject/response_string | Test free form object |
 | [**testEchoBodyPet**](BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s) |
 | [**testEchoBodyPetWithHttpInfo**](BodyApi.md#testEchoBodyPetWithHttpInfo) | **POST** /echo/body/Pet | Test body parameter(s) |
 | [**testEchoBodyPetResponseString**](BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body |
 | [**testEchoBodyPetResponseStringWithHttpInfo**](BodyApi.md#testEchoBodyPetResponseStringWithHttpInfo) | **POST** /echo/body/Pet/response_string | Test empty response body |
+| [**testEchoBodyTagResponseString**](BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body) |
+| [**testEchoBodyTagResponseStringWithHttpInfo**](BodyApi.md#testEchoBodyTagResponseStringWithHttpInfo) | **POST** /echo/body/Tag/response_string | Test empty json (request body) |
 
 
 
@@ -139,6 +145,274 @@ No authorization required
 | **200** | Successful operation |  -  |
 
 
+## testBodyApplicationOctetstreamBinary
+
+> String testBodyApplicationOctetstreamBinary(body)
+
+Test body parameter(s)
+
+Test body parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        File body = new File("/path/to/file"); // File | 
+        try {
+            String result = apiInstance.testBodyApplicationOctetstreamBinary(body);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testBodyApplicationOctetstreamBinary");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **File**|  | [optional] |
+
+### Return type
+
+**String**
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/octet-stream
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+## testBodyApplicationOctetstreamBinaryWithHttpInfo
+
+> ApiResponse<String> testBodyApplicationOctetstreamBinary testBodyApplicationOctetstreamBinaryWithHttpInfo(body)
+
+Test body parameter(s)
+
+Test body parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        File body = new File("/path/to/file"); // File | 
+        try {
+            ApiResponse<String> response = apiInstance.testBodyApplicationOctetstreamBinaryWithHttpInfo(body);
+            System.out.println("Status code: " + response.getStatusCode());
+            System.out.println("Response headers: " + response.getHeaders());
+            System.out.println("Response body: " + response.getData());
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testBodyApplicationOctetstreamBinary");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            System.err.println("Reason: " + e.getResponseBody());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **File**|  | [optional] |
+
+### Return type
+
+ApiResponse<**String**>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/octet-stream
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
+## testEchoBodyFreeFormObjectResponseString
+
+> String testEchoBodyFreeFormObjectResponseString(body)
+
+Test free form object
+
+Test free form object
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Object body = null; // Object | Free form object
+        try {
+            String result = apiInstance.testEchoBodyFreeFormObjectResponseString(body);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyFreeFormObjectResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **Object**| Free form object | [optional] |
+
+### Return type
+
+**String**
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+## testEchoBodyFreeFormObjectResponseStringWithHttpInfo
+
+> ApiResponse<String> testEchoBodyFreeFormObjectResponseString testEchoBodyFreeFormObjectResponseStringWithHttpInfo(body)
+
+Test free form object
+
+Test free form object
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Object body = null; // Object | Free form object
+        try {
+            ApiResponse<String> response = apiInstance.testEchoBodyFreeFormObjectResponseStringWithHttpInfo(body);
+            System.out.println("Status code: " + response.getStatusCode());
+            System.out.println("Response headers: " + response.getHeaders());
+            System.out.println("Response body: " + response.getData());
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyFreeFormObjectResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            System.err.println("Reason: " + e.getResponseBody());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **Object**| Free form object | [optional] |
+
+### Return type
+
+ApiResponse<**String**>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
 ## testEchoBodyPet
 
 > Pet testEchoBodyPet(pet)
@@ -406,3 +680,137 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
+
+## testEchoBodyTagResponseString
+
+> String testEchoBodyTagResponseString(tag)
+
+Test empty json (request body)
+
+Test empty json (request body)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Tag tag = new Tag(); // Tag | Tag object
+        try {
+            String result = apiInstance.testEchoBodyTagResponseString(tag);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyTagResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **tag** | [**Tag**](Tag.md)| Tag object | [optional] |
+
+### Return type
+
+**String**
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+## testEchoBodyTagResponseStringWithHttpInfo
+
+> ApiResponse<String> testEchoBodyTagResponseString testEchoBodyTagResponseStringWithHttpInfo(tag)
+
+Test empty json (request body)
+
+Test empty json (request body)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        BodyApi apiInstance = new BodyApi(defaultClient);
+        Tag tag = new Tag(); // Tag | Tag object
+        try {
+            ApiResponse<String> response = apiInstance.testEchoBodyTagResponseStringWithHttpInfo(tag);
+            System.out.println("Status code: " + response.getStatusCode());
+            System.out.println("Response headers: " + response.getHeaders());
+            System.out.println("Response body: " + response.getData());
+        } catch (ApiException e) {
+            System.err.println("Exception when calling BodyApi#testEchoBodyTagResponseString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            System.err.println("Reason: " + e.getResponseBody());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **tag** | [**Tag**](Tag.md)| Tag object | [optional] |
+
+### Return type
+
+ApiResponse<**String**>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+

samples/client/echo_api/java/native/docs/QueryApi.md

@@ -4,6 +4,8 @@ All URIs are relative to *http://localhost:3000*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
+| [**testEnumRefString**](QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s) |
+| [**testEnumRefStringWithHttpInfo**](QueryApi.md#testEnumRefStringWithHttpInfo) | **GET** /query/enum_ref_string | Test query parameter(s) |
 | [**testQueryDatetimeDateString**](QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s) |
 | [**testQueryDatetimeDateStringWithHttpInfo**](QueryApi.md#testQueryDatetimeDateStringWithHttpInfo) | **GET** /query/datetime/date/string | Test query parameter(s) |
 | [**testQueryIntegerBooleanString**](QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s) |
@@ -21,6 +23,140 @@ All URIs are relative to *http://localhost:3000*
 
 
 
+## testEnumRefString
+
+> String testEnumRefString(enumRefStringQuery)
+
+Test query parameter(s)
+
+Test query parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.QueryApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        QueryApi apiInstance = new QueryApi(defaultClient);
+        StringEnumRef enumRefStringQuery = StringEnumRef.fromValue("success"); // StringEnumRef | 
+        try {
+            String result = apiInstance.testEnumRefString(enumRefStringQuery);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling QueryApi#testEnumRefString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **enumRefStringQuery** | [**StringEnumRef**](.md)|  | [optional] [enum: success, failure, unclassified] |
+
+### Return type
+
+**String**
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+## testEnumRefStringWithHttpInfo
+
+> ApiResponse<String> testEnumRefString testEnumRefStringWithHttpInfo(enumRefStringQuery)
+
+Test query parameter(s)
+
+Test query parameter(s)
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.QueryApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        QueryApi apiInstance = new QueryApi(defaultClient);
+        StringEnumRef enumRefStringQuery = StringEnumRef.fromValue("success"); // StringEnumRef | 
+        try {
+            ApiResponse<String> response = apiInstance.testEnumRefStringWithHttpInfo(enumRefStringQuery);
+            System.out.println("Status code: " + response.getStatusCode());
+            System.out.println("Response headers: " + response.getHeaders());
+            System.out.println("Response body: " + response.getData());
+        } catch (ApiException e) {
+            System.err.println("Exception when calling QueryApi#testEnumRefString");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            System.err.println("Reason: " + e.getResponseBody());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **enumRefStringQuery** | [**StringEnumRef**](.md)|  | [optional] [enum: success, failure, unclassified] |
+
+### Return type
+
+ApiResponse<**String**>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
 ## testQueryDatetimeDateString
 
 > String testQueryDatetimeDateString(datetimeQuery, dateQuery, stringQuery)

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/Configuration.java

@@ -15,6 +15,8 @@ package org.openapitools.client;
 
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class Configuration {
+    public static final String VERSION = "0.1.0";
+
     private static ApiClient defaultApiClient = new ApiClient();
 
     /**

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/api/BodyApi.java

@@ -19,6 +19,7 @@ import org.openapitools.client.Pair;
 
 import java.io.File;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.Tag;
 
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -147,6 +148,168 @@ public class BodyApi {
     }
     return localVarRequestBuilder;
   }
+  /**
+   * Test body parameter(s)
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testBodyApplicationOctetstreamBinary(File body) throws ApiException {
+    ApiResponse<String> localVarResponse = testBodyApplicationOctetstreamBinaryWithHttpInfo(body);
+    return localVarResponse.getData();
+  }
+
+  /**
+   * Test body parameter(s)
+   * Test body parameter(s)
+   * @param body  (optional)
+   * @return ApiResponse&lt;String&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public ApiResponse<String> testBodyApplicationOctetstreamBinaryWithHttpInfo(File body) throws ApiException {
+    HttpRequest.Builder localVarRequestBuilder = testBodyApplicationOctetstreamBinaryRequestBuilder(body);
+    try {
+      HttpResponse<InputStream> localVarResponse = memberVarHttpClient.send(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofInputStream());
+      if (memberVarResponseInterceptor != null) {
+        memberVarResponseInterceptor.accept(localVarResponse);
+      }
+      try {
+        if (localVarResponse.statusCode()/ 100 != 2) {
+          throw getApiException("testBodyApplicationOctetstreamBinary", localVarResponse);
+        }
+        // for plain text response
+        if (localVarResponse.headers().map().containsKey("Content-Type") &&
+                "text/plain".equalsIgnoreCase(localVarResponse.headers().map().get("Content-Type").get(0))) {
+          java.util.Scanner s = new java.util.Scanner(localVarResponse.body()).useDelimiter("\\A");
+          String responseBodyText = s.hasNext() ? s.next() : "";
+          return new ApiResponse<String>(
+                  localVarResponse.statusCode(),
+                  localVarResponse.headers().map(),
+                  responseBodyText
+          );
+        } else {
+            throw new RuntimeException("Error! The response Content-Type is supposed to be `text/plain` but it's not: " + localVarResponse);
+        }
+      } finally {
+      }
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new ApiException(e);
+    }
+  }
+
+  private HttpRequest.Builder testBodyApplicationOctetstreamBinaryRequestBuilder(File body) throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/body/application/octetstream/binary";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Content-Type", "application/octet-stream");
+    localVarRequestBuilder.header("Accept", "text/plain");
+
+    try {
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+  /**
+   * Test free form object
+   * Test free form object
+   * @param body Free form object (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyFreeFormObjectResponseString(Object body) throws ApiException {
+    ApiResponse<String> localVarResponse = testEchoBodyFreeFormObjectResponseStringWithHttpInfo(body);
+    return localVarResponse.getData();
+  }
+
+  /**
+   * Test free form object
+   * Test free form object
+   * @param body Free form object (optional)
+   * @return ApiResponse&lt;String&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public ApiResponse<String> testEchoBodyFreeFormObjectResponseStringWithHttpInfo(Object body) throws ApiException {
+    HttpRequest.Builder localVarRequestBuilder = testEchoBodyFreeFormObjectResponseStringRequestBuilder(body);
+    try {
+      HttpResponse<InputStream> localVarResponse = memberVarHttpClient.send(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofInputStream());
+      if (memberVarResponseInterceptor != null) {
+        memberVarResponseInterceptor.accept(localVarResponse);
+      }
+      try {
+        if (localVarResponse.statusCode()/ 100 != 2) {
+          throw getApiException("testEchoBodyFreeFormObjectResponseString", localVarResponse);
+        }
+        // for plain text response
+        if (localVarResponse.headers().map().containsKey("Content-Type") &&
+                "text/plain".equalsIgnoreCase(localVarResponse.headers().map().get("Content-Type").get(0))) {
+          java.util.Scanner s = new java.util.Scanner(localVarResponse.body()).useDelimiter("\\A");
+          String responseBodyText = s.hasNext() ? s.next() : "";
+          return new ApiResponse<String>(
+                  localVarResponse.statusCode(),
+                  localVarResponse.headers().map(),
+                  responseBodyText
+          );
+        } else {
+            throw new RuntimeException("Error! The response Content-Type is supposed to be `text/plain` but it's not: " + localVarResponse);
+        }
+      } finally {
+      }
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new ApiException(e);
+    }
+  }
+
+  private HttpRequest.Builder testEchoBodyFreeFormObjectResponseStringRequestBuilder(Object body) throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/echo/body/FreeFormObject/response_string";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Content-Type", "application/json");
+    localVarRequestBuilder.header("Accept", "text/plain");
+
+    try {
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
   /**
    * Test body parameter(s)
    * Test body parameter(s)
@@ -301,4 +464,85 @@ public class BodyApi {
     }
     return localVarRequestBuilder;
   }
+  /**
+   * Test empty json (request body)
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEchoBodyTagResponseString(Tag tag) throws ApiException {
+    ApiResponse<String> localVarResponse = testEchoBodyTagResponseStringWithHttpInfo(tag);
+    return localVarResponse.getData();
+  }
+
+  /**
+   * Test empty json (request body)
+   * Test empty json (request body)
+   * @param tag Tag object (optional)
+   * @return ApiResponse&lt;String&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public ApiResponse<String> testEchoBodyTagResponseStringWithHttpInfo(Tag tag) throws ApiException {
+    HttpRequest.Builder localVarRequestBuilder = testEchoBodyTagResponseStringRequestBuilder(tag);
+    try {
+      HttpResponse<InputStream> localVarResponse = memberVarHttpClient.send(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofInputStream());
+      if (memberVarResponseInterceptor != null) {
+        memberVarResponseInterceptor.accept(localVarResponse);
+      }
+      try {
+        if (localVarResponse.statusCode()/ 100 != 2) {
+          throw getApiException("testEchoBodyTagResponseString", localVarResponse);
+        }
+        // for plain text response
+        if (localVarResponse.headers().map().containsKey("Content-Type") &&
+                "text/plain".equalsIgnoreCase(localVarResponse.headers().map().get("Content-Type").get(0))) {
+          java.util.Scanner s = new java.util.Scanner(localVarResponse.body()).useDelimiter("\\A");
+          String responseBodyText = s.hasNext() ? s.next() : "";
+          return new ApiResponse<String>(
+                  localVarResponse.statusCode(),
+                  localVarResponse.headers().map(),
+                  responseBodyText
+          );
+        } else {
+            throw new RuntimeException("Error! The response Content-Type is supposed to be `text/plain` but it's not: " + localVarResponse);
+        }
+      } finally {
+      }
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new ApiException(e);
+    }
+  }
+
+  private HttpRequest.Builder testEchoBodyTagResponseStringRequestBuilder(Tag tag) throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/echo/body/Tag/response_string";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Content-Type", "application/json");
+    localVarRequestBuilder.header("Accept", "text/plain");
+
+    try {
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(tag);
+      localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
 }

samples/client/echo_api/java/native/src/main/java/org/openapitools/client/api/QueryApi.java

@@ -21,6 +21,7 @@ import org.openapitools.client.model.DataQuery;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.client.model.TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter;
 import org.openapitools.client.model.TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter;
 
@@ -92,6 +93,96 @@ public class QueryApi {
     return operationId + " call failed with: " + statusCode + " - " + body;
   }
 
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testEnumRefString(StringEnumRef enumRefStringQuery) throws ApiException {
+    ApiResponse<String> localVarResponse = testEnumRefStringWithHttpInfo(enumRefStringQuery);
+    return localVarResponse.getData();
+  }
+
+  /**
+   * Test query parameter(s)
+   * Test query parameter(s)
+   * @param enumRefStringQuery  (optional)
+   * @return ApiResponse&lt;String&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public ApiResponse<String> testEnumRefStringWithHttpInfo(StringEnumRef enumRefStringQuery) throws ApiException {
+    HttpRequest.Builder localVarRequestBuilder = testEnumRefStringRequestBuilder(enumRefStringQuery);
+    try {
+      HttpResponse<InputStream> localVarResponse = memberVarHttpClient.send(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofInputStream());
+      if (memberVarResponseInterceptor != null) {
+        memberVarResponseInterceptor.accept(localVarResponse);
+      }
+      try {
+        if (localVarResponse.statusCode()/ 100 != 2) {
+          throw getApiException("testEnumRefString", localVarResponse);
+        }
+        // for plain text response
+        if (localVarResponse.headers().map().containsKey("Content-Type") &&
+                "text/plain".equalsIgnoreCase(localVarResponse.headers().map().get("Content-Type").get(0))) {
+          java.util.Scanner s = new java.util.Scanner(localVarResponse.body()).useDelimiter("\\A");
+          String responseBodyText = s.hasNext() ? s.next() : "";
+          return new ApiResponse<String>(
+                  localVarResponse.statusCode(),
+                  localVarResponse.headers().map(),
+                  responseBodyText
+          );
+        } else {
+            throw new RuntimeException("Error! The response Content-Type is supposed to be `text/plain` but it's not: " + localVarResponse);
+        }
+      } finally {
+      }
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new ApiException(e);
+    }
+  }
+
+  private HttpRequest.Builder testEnumRefStringRequestBuilder(StringEnumRef enumRefStringQuery) throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/query/enum_ref_string";
+
+    List<Pair> localVarQueryParams = new ArrayList<>();
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    localVarQueryParameterBaseName = "enum_ref_string_query";
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("enum_ref_string_query", enumRefStringQuery));
+
+    if (!localVarQueryParams.isEmpty() || localVarQueryStringJoiner.length() != 0) {
+      StringJoiner queryJoiner = new StringJoiner("&");
+      localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
+      if (localVarQueryStringJoiner.length() != 0) {
+        queryJoiner.add(localVarQueryStringJoiner.toString());
+      }
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
+    } else {
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+    }
+
+    localVarRequestBuilder.header("Accept", "text/plain");
+
+    localVarRequestBuilder.method("GET", HttpRequest.BodyPublishers.noBody());
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
   /**
    * Test query parameter(s)
    * Test query parameter(s)

samples/client/echo_api/java/okhttp-gson/README.md

@@ -113,11 +113,15 @@ All URIs are relative to *http://localhost:3000*
 Class | Method | HTTP request | Description
 ------------ | ------------- | ------------- | -------------
 *BodyApi* | [**testBinaryGif**](docs/BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body
+*BodyApi* | [**testBodyApplicationOctetstreamBinary**](docs/BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s)
+*BodyApi* | [**testEchoBodyFreeFormObjectResponseString**](docs/BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object
 *BodyApi* | [**testEchoBodyPet**](docs/BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s)
 *BodyApi* | [**testEchoBodyPetResponseString**](docs/BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body
+*BodyApi* | [**testEchoBodyTagResponseString**](docs/BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body)
 *FormApi* | [**testFormIntegerBooleanString**](docs/FormApi.md#testFormIntegerBooleanString) | **POST** /form/integer/boolean/string | Test form parameter(s)
 *HeaderApi* | [**testHeaderIntegerBooleanString**](docs/HeaderApi.md#testHeaderIntegerBooleanString) | **GET** /header/integer/boolean/string | Test header parameter(s)
 *PathApi* | [**testsPathStringPathStringIntegerPathInteger**](docs/PathApi.md#testsPathStringPathStringIntegerPathInteger) | **GET** /path/string/{path_string}/integer/{path_integer} | Test path parameter(s)
+*QueryApi* | [**testEnumRefString**](docs/QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s)
 *QueryApi* | [**testQueryDatetimeDateString**](docs/QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s)
 *QueryApi* | [**testQueryIntegerBooleanString**](docs/QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s)
 *QueryApi* | [**testQueryStyleDeepObjectExplodeTrueObject**](docs/QueryApi.md#testQueryStyleDeepObjectExplodeTrueObject) | **GET** /query/style_deepObject/explode_true/object | Test query parameter(s)
@@ -143,10 +147,11 @@ Class | Method | HTTP request | Description
  - [TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter](docs/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.md)
 
 
+<a id="documentation-for-authorization"></a>
 ## Documentation for Authorization
 
-All endpoints do not require authorization.
-Authentication schemes defined for the API:
+Endpoints do not require authorization.
+
 
 ## Recommendation
 

samples/client/echo_api/java/okhttp-gson/api/openapi.yaml

@@ -99,6 +99,29 @@ paths:
       tags:
       - header
       x-accepts: text/plain
+  /query/enum_ref_string:
+    get:
+      description: Test query parameter(s)
+      operationId: test/enum_ref_string
+      parameters:
+      - explode: true
+        in: query
+        name: enum_ref_string_query
+        required: false
+        schema:
+          $ref: '#/components/schemas/StringEnumRef'
+        style: form
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test query parameter(s)
+      tags:
+      - query
+      x-accepts: text/plain
   /query/datetime/date/string:
     get:
       description: Test query parameter(s)
@@ -290,6 +313,28 @@ paths:
       tags:
       - query
       x-accepts: text/plain
+  /body/application/octetstream/binary:
+    post:
+      description: Test body parameter(s)
+      operationId: test/body/application/octetstream/binary
+      requestBody:
+        content:
+          application/octet-stream:
+            schema:
+              format: binary
+              type: string
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test body parameter(s)
+      tags:
+      - body
+      x-content-type: application/octet-stream
+      x-accepts: text/plain
   /echo/body/Pet:
     post:
       description: Test body parameter(s)
@@ -326,6 +371,46 @@ paths:
       - body
       x-content-type: application/json
       x-accepts: text/plain
+  /echo/body/Tag/response_string:
+    post:
+      description: Test empty json (request body)
+      operationId: test/echo/body/Tag/response_string
+      requestBody:
+        $ref: '#/components/requestBodies/Tag'
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test empty json (request body)
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
+  /echo/body/FreeFormObject/response_string:
+    post:
+      description: Test free form object
+      operationId: test/echo/body/FreeFormObject/response_string
+      requestBody:
+        content:
+          application/json:
+            schema:
+              type: object
+        description: Free form object
+      responses:
+        "200":
+          content:
+            text/plain:
+              schema:
+                type: string
+          description: Successful operation
+      summary: Test free form object
+      tags:
+      - body
+      x-content-type: application/json
+      x-accepts: text/plain
   /binary/gif:
     post:
       description: Test binary (gif) response body
@@ -350,6 +435,12 @@ components:
           schema:
             $ref: '#/components/schemas/Pet'
       description: Pet object that needs to be added to the store
+    Tag:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Tag'
+      description: Tag object
   schemas:
     Category:
       example:

samples/client/echo_api/java/okhttp-gson/docs/BodyApi.md

@@ -5,11 +5,14 @@ All URIs are relative to *http://localhost:3000*
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
 | [**testBinaryGif**](BodyApi.md#testBinaryGif) | **POST** /binary/gif | Test binary (gif) response body |
+| [**testBodyApplicationOctetstreamBinary**](BodyApi.md#testBodyApplicationOctetstreamBinary) | **POST** /body/application/octetstream/binary | Test body parameter(s) |
+| [**testEchoBodyFreeFormObjectResponseString**](BodyApi.md#testEchoBodyFreeFormObjectResponseString) | **POST** /echo/body/FreeFormObject/response_string | Test free form object |
 | [**testEchoBodyPet**](BodyApi.md#testEchoBodyPet) | **POST** /echo/body/Pet | Test body parameter(s) |
 | [**testEchoBodyPetResponseString**](BodyApi.md#testEchoBodyPetResponseString) | **POST** /echo/body/Pet/response_string | Test empty response body |
+| [**testEchoBodyTagResponseString**](BodyApi.md#testEchoBodyTagResponseString) | **POST** /echo/body/Tag/response_string | Test empty json (request body) |
 
 
-<a name="testBinaryGif"></a>
+<a id="testBinaryGif"></a>
 # **testBinaryGif**
 > File testBinaryGif()
 
@@ -67,7 +70,131 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testEchoBodyPet"></a>
+<a id="testBodyApplicationOctetstreamBinary"></a>
+# **testBodyApplicationOctetstreamBinary**
+> String testBodyApplicationOctetstreamBinary(body)
+
+Test body parameter(s)
+
+Test body parameter(s)
+
+### Example
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+  public static void main(String[] args) {
+    ApiClient defaultClient = Configuration.getDefaultApiClient();
+    defaultClient.setBasePath("http://localhost:3000");
+
+    BodyApi apiInstance = new BodyApi(defaultClient);
+    File body = new File("/path/to/file"); // File | 
+    try {
+      String result = apiInstance.testBodyApplicationOctetstreamBinary(body);
+      System.out.println(result);
+    } catch (ApiException e) {
+      System.err.println("Exception when calling BodyApi#testBodyApplicationOctetstreamBinary");
+      System.err.println("Status code: " + e.getCode());
+      System.err.println("Reason: " + e.getResponseBody());
+      System.err.println("Response headers: " + e.getResponseHeaders());
+      e.printStackTrace();
+    }
+  }
+}
+```
+
+### Parameters
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **File**|  | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/octet-stream
+ - **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+<a id="testEchoBodyFreeFormObjectResponseString"></a>
+# **testEchoBodyFreeFormObjectResponseString**
+> String testEchoBodyFreeFormObjectResponseString(body)
+
+Test free form object
+
+Test free form object
+
+### Example
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+  public static void main(String[] args) {
+    ApiClient defaultClient = Configuration.getDefaultApiClient();
+    defaultClient.setBasePath("http://localhost:3000");
+
+    BodyApi apiInstance = new BodyApi(defaultClient);
+    Object body = null; // Object | Free form object
+    try {
+      String result = apiInstance.testEchoBodyFreeFormObjectResponseString(body);
+      System.out.println(result);
+    } catch (ApiException e) {
+      System.err.println("Exception when calling BodyApi#testEchoBodyFreeFormObjectResponseString");
+      System.err.println("Status code: " + e.getCode());
+      System.err.println("Reason: " + e.getResponseBody());
+      System.err.println("Response headers: " + e.getResponseHeaders());
+      e.printStackTrace();
+    }
+  }
+}
+```
+
+### Parameters
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **Object**| Free form object | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+<a id="testEchoBodyPet"></a>
 # **testEchoBodyPet**
 > Pet testEchoBodyPet(pet)
 
@@ -129,7 +256,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testEchoBodyPetResponseString"></a>
+<a id="testEchoBodyPetResponseString"></a>
 # **testEchoBodyPetResponseString**
 > String testEchoBodyPetResponseString(pet)
 
@@ -191,3 +318,65 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
+<a id="testEchoBodyTagResponseString"></a>
+# **testEchoBodyTagResponseString**
+> String testEchoBodyTagResponseString(tag)
+
+Test empty json (request body)
+
+Test empty json (request body)
+
+### Example
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.BodyApi;
+
+public class Example {
+  public static void main(String[] args) {
+    ApiClient defaultClient = Configuration.getDefaultApiClient();
+    defaultClient.setBasePath("http://localhost:3000");
+
+    BodyApi apiInstance = new BodyApi(defaultClient);
+    Tag tag = new Tag(); // Tag | Tag object
+    try {
+      String result = apiInstance.testEchoBodyTagResponseString(tag);
+      System.out.println(result);
+    } catch (ApiException e) {
+      System.err.println("Exception when calling BodyApi#testEchoBodyTagResponseString");
+      System.err.println("Status code: " + e.getCode());
+      System.err.println("Reason: " + e.getResponseBody());
+      System.err.println("Response headers: " + e.getResponseHeaders());
+      e.printStackTrace();
+    }
+  }
+}
+```
+
+### Parameters
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **tag** | [**Tag**](Tag.md)| Tag object | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+

samples/client/echo_api/java/okhttp-gson/docs/FormApi.md

@@ -7,7 +7,7 @@ All URIs are relative to *http://localhost:3000*
 | [**testFormIntegerBooleanString**](FormApi.md#testFormIntegerBooleanString) | **POST** /form/integer/boolean/string | Test form parameter(s) |
 
 
-<a name="testFormIntegerBooleanString"></a>
+<a id="testFormIntegerBooleanString"></a>
 # **testFormIntegerBooleanString**
 > String testFormIntegerBooleanString(integerForm, booleanForm, stringForm)
 

samples/client/echo_api/java/okhttp-gson/docs/HeaderApi.md

@@ -7,7 +7,7 @@ All URIs are relative to *http://localhost:3000*
 | [**testHeaderIntegerBooleanString**](HeaderApi.md#testHeaderIntegerBooleanString) | **GET** /header/integer/boolean/string | Test header parameter(s) |
 
 
-<a name="testHeaderIntegerBooleanString"></a>
+<a id="testHeaderIntegerBooleanString"></a>
 # **testHeaderIntegerBooleanString**
 > String testHeaderIntegerBooleanString(integerHeader, booleanHeader, stringHeader)
 

samples/client/echo_api/java/okhttp-gson/docs/PathApi.md

@@ -7,7 +7,7 @@ All URIs are relative to *http://localhost:3000*
 | [**testsPathStringPathStringIntegerPathInteger**](PathApi.md#testsPathStringPathStringIntegerPathInteger) | **GET** /path/string/{path_string}/integer/{path_integer} | Test path parameter(s) |
 
 
-<a name="testsPathStringPathStringIntegerPathInteger"></a>
+<a id="testsPathStringPathStringIntegerPathInteger"></a>
 # **testsPathStringPathStringIntegerPathInteger**
 > String testsPathStringPathStringIntegerPathInteger(pathString, pathInteger)
 

samples/client/echo_api/java/okhttp-gson/docs/QueryApi.md

@@ -4,6 +4,7 @@ All URIs are relative to *http://localhost:3000*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
+| [**testEnumRefString**](QueryApi.md#testEnumRefString) | **GET** /query/enum_ref_string | Test query parameter(s) |
 | [**testQueryDatetimeDateString**](QueryApi.md#testQueryDatetimeDateString) | **GET** /query/datetime/date/string | Test query parameter(s) |
 | [**testQueryIntegerBooleanString**](QueryApi.md#testQueryIntegerBooleanString) | **GET** /query/integer/boolean/string | Test query parameter(s) |
 | [**testQueryStyleDeepObjectExplodeTrueObject**](QueryApi.md#testQueryStyleDeepObjectExplodeTrueObject) | **GET** /query/style_deepObject/explode_true/object | Test query parameter(s) |
@@ -13,7 +14,69 @@ All URIs are relative to *http://localhost:3000*
 | [**testQueryStyleFormExplodeTrueObjectAllOf**](QueryApi.md#testQueryStyleFormExplodeTrueObjectAllOf) | **GET** /query/style_form/explode_true/object/allOf | Test query parameter(s) |
 
 
-<a name="testQueryDatetimeDateString"></a>
+<a id="testEnumRefString"></a>
+# **testEnumRefString**
+> String testEnumRefString(enumRefStringQuery)
+
+Test query parameter(s)
+
+Test query parameter(s)
+
+### Example
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.QueryApi;
+
+public class Example {
+  public static void main(String[] args) {
+    ApiClient defaultClient = Configuration.getDefaultApiClient();
+    defaultClient.setBasePath("http://localhost:3000");
+
+    QueryApi apiInstance = new QueryApi(defaultClient);
+    StringEnumRef enumRefStringQuery = StringEnumRef.fromValue("success"); // StringEnumRef | 
+    try {
+      String result = apiInstance.testEnumRefString(enumRefStringQuery);
+      System.out.println(result);
+    } catch (ApiException e) {
+      System.err.println("Exception when calling QueryApi#testEnumRefString");
+      System.err.println("Status code: " + e.getCode());
+      System.err.println("Reason: " + e.getResponseBody());
+      System.err.println("Response headers: " + e.getResponseHeaders());
+      e.printStackTrace();
+    }
+  }
+}
+```
+
+### Parameters
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **enumRefStringQuery** | [**StringEnumRef**](.md)|  | [optional] [enum: success, failure, unclassified] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: text/plain
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+<a id="testQueryDatetimeDateString"></a>
 # **testQueryDatetimeDateString**
 > String testQueryDatetimeDateString(datetimeQuery, dateQuery, stringQuery)
 
@@ -79,7 +142,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryIntegerBooleanString"></a>
+<a id="testQueryIntegerBooleanString"></a>
 # **testQueryIntegerBooleanString**
 > String testQueryIntegerBooleanString(integerQuery, booleanQuery, stringQuery)
 
@@ -145,7 +208,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryStyleDeepObjectExplodeTrueObject"></a>
+<a id="testQueryStyleDeepObjectExplodeTrueObject"></a>
 # **testQueryStyleDeepObjectExplodeTrueObject**
 > String testQueryStyleDeepObjectExplodeTrueObject(queryObject)
 
@@ -207,7 +270,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryStyleDeepObjectExplodeTrueObjectAllOf"></a>
+<a id="testQueryStyleDeepObjectExplodeTrueObjectAllOf"></a>
 # **testQueryStyleDeepObjectExplodeTrueObjectAllOf**
 > String testQueryStyleDeepObjectExplodeTrueObjectAllOf(queryObject)
 
@@ -269,7 +332,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryStyleFormExplodeTrueArrayString"></a>
+<a id="testQueryStyleFormExplodeTrueArrayString"></a>
 # **testQueryStyleFormExplodeTrueArrayString**
 > String testQueryStyleFormExplodeTrueArrayString(queryObject)
 
@@ -331,7 +394,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryStyleFormExplodeTrueObject"></a>
+<a id="testQueryStyleFormExplodeTrueObject"></a>
 # **testQueryStyleFormExplodeTrueObject**
 > String testQueryStyleFormExplodeTrueObject(queryObject)
 
@@ -393,7 +456,7 @@ No authorization required
 |-------------|-------------|------------------|
 | **200** | Successful operation |  -  |
 
-<a name="testQueryStyleFormExplodeTrueObjectAllOf"></a>
+<a id="testQueryStyleFormExplodeTrueObjectAllOf"></a>
 # **testQueryStyleFormExplodeTrueObjectAllOf**
 > String testQueryStyleFormExplodeTrueObjectAllOf(queryObject)
 

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/Configuration.java

@@ -15,6 +15,8 @@ package org.openapitools.client;
 
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class Configuration {
+    public static final String VERSION = "0.1.0";
+
     private static ApiClient defaultApiClient = new ApiClient();
 
     /**

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/api/BodyApi.java

@@ -29,6 +29,7 @@ import java.io.IOException;
 
 import java.io.File;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.Tag;
 
 import java.lang.reflect.Type;
 import java.util.ArrayList;
@@ -187,6 +188,242 @@ public class BodyApi {
         localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
         return localVarCall;
     }
+    /**
+     * Build call for testBodyApplicationOctetstreamBinary
+     * @param body  (optional)
+     * @param _callback Callback for upload/download progress
+     * @return Call to execute
+     * @throws ApiException If fail to serialize the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testBodyApplicationOctetstreamBinaryCall(File body, final ApiCallback _callback) throws ApiException {
+        String basePath = null;
+        // Operation Servers
+        String[] localBasePaths = new String[] {  };
+
+        // Determine Base Path to Use
+        if (localCustomBaseUrl != null){
+            basePath = localCustomBaseUrl;
+        } else if ( localBasePaths.length > 0 ) {
+            basePath = localBasePaths[localHostIndex];
+        } else {
+            basePath = null;
+        }
+
+        Object localVarPostBody = body;
+
+        // create path and map variables
+        String localVarPath = "/body/application/octetstream/binary";
+
+        List<Pair> localVarQueryParams = new ArrayList<Pair>();
+        List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+        Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+        Map<String, String> localVarCookieParams = new HashMap<String, String>();
+        Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+        final String[] localVarAccepts = {
+            "text/plain"
+        };
+        final String localVarAccept = localVarApiClient.selectHeaderAccept(localVarAccepts);
+        if (localVarAccept != null) {
+            localVarHeaderParams.put("Accept", localVarAccept);
+        }
+
+        final String[] localVarContentTypes = {
+            "application/octet-stream"
+        };
+        final String localVarContentType = localVarApiClient.selectHeaderContentType(localVarContentTypes);
+        if (localVarContentType != null) {
+            localVarHeaderParams.put("Content-Type", localVarContentType);
+        }
+
+        String[] localVarAuthNames = new String[] {  };
+        return localVarApiClient.buildCall(basePath, localVarPath, "POST", localVarQueryParams, localVarCollectionQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAuthNames, _callback);
+    }
+
+    @SuppressWarnings("rawtypes")
+    private okhttp3.Call testBodyApplicationOctetstreamBinaryValidateBeforeCall(File body, final ApiCallback _callback) throws ApiException {
+        return testBodyApplicationOctetstreamBinaryCall(body, _callback);
+
+    }
+
+    /**
+     * Test body parameter(s)
+     * Test body parameter(s)
+     * @param body  (optional)
+     * @return String
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public String testBodyApplicationOctetstreamBinary(File body) throws ApiException {
+        ApiResponse<String> localVarResp = testBodyApplicationOctetstreamBinaryWithHttpInfo(body);
+        return localVarResp.getData();
+    }
+
+    /**
+     * Test body parameter(s)
+     * Test body parameter(s)
+     * @param body  (optional)
+     * @return ApiResponse&lt;String&gt;
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public ApiResponse<String> testBodyApplicationOctetstreamBinaryWithHttpInfo(File body) throws ApiException {
+        okhttp3.Call localVarCall = testBodyApplicationOctetstreamBinaryValidateBeforeCall(body, null);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        return localVarApiClient.execute(localVarCall, localVarReturnType);
+    }
+
+    /**
+     * Test body parameter(s) (asynchronously)
+     * Test body parameter(s)
+     * @param body  (optional)
+     * @param _callback The callback to be executed when the API call finishes
+     * @return The request call
+     * @throws ApiException If fail to process the API call, e.g. serializing the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testBodyApplicationOctetstreamBinaryAsync(File body, final ApiCallback<String> _callback) throws ApiException {
+
+        okhttp3.Call localVarCall = testBodyApplicationOctetstreamBinaryValidateBeforeCall(body, _callback);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
+        return localVarCall;
+    }
+    /**
+     * Build call for testEchoBodyFreeFormObjectResponseString
+     * @param body Free form object (optional)
+     * @param _callback Callback for upload/download progress
+     * @return Call to execute
+     * @throws ApiException If fail to serialize the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEchoBodyFreeFormObjectResponseStringCall(Object body, final ApiCallback _callback) throws ApiException {
+        String basePath = null;
+        // Operation Servers
+        String[] localBasePaths = new String[] {  };
+
+        // Determine Base Path to Use
+        if (localCustomBaseUrl != null){
+            basePath = localCustomBaseUrl;
+        } else if ( localBasePaths.length > 0 ) {
+            basePath = localBasePaths[localHostIndex];
+        } else {
+            basePath = null;
+        }
+
+        Object localVarPostBody = body;
+
+        // create path and map variables
+        String localVarPath = "/echo/body/FreeFormObject/response_string";
+
+        List<Pair> localVarQueryParams = new ArrayList<Pair>();
+        List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+        Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+        Map<String, String> localVarCookieParams = new HashMap<String, String>();
+        Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+        final String[] localVarAccepts = {
+            "text/plain"
+        };
+        final String localVarAccept = localVarApiClient.selectHeaderAccept(localVarAccepts);
+        if (localVarAccept != null) {
+            localVarHeaderParams.put("Accept", localVarAccept);
+        }
+
+        final String[] localVarContentTypes = {
+            "application/json"
+        };
+        final String localVarContentType = localVarApiClient.selectHeaderContentType(localVarContentTypes);
+        if (localVarContentType != null) {
+            localVarHeaderParams.put("Content-Type", localVarContentType);
+        }
+
+        String[] localVarAuthNames = new String[] {  };
+        return localVarApiClient.buildCall(basePath, localVarPath, "POST", localVarQueryParams, localVarCollectionQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAuthNames, _callback);
+    }
+
+    @SuppressWarnings("rawtypes")
+    private okhttp3.Call testEchoBodyFreeFormObjectResponseStringValidateBeforeCall(Object body, final ApiCallback _callback) throws ApiException {
+        return testEchoBodyFreeFormObjectResponseStringCall(body, _callback);
+
+    }
+
+    /**
+     * Test free form object
+     * Test free form object
+     * @param body Free form object (optional)
+     * @return String
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public String testEchoBodyFreeFormObjectResponseString(Object body) throws ApiException {
+        ApiResponse<String> localVarResp = testEchoBodyFreeFormObjectResponseStringWithHttpInfo(body);
+        return localVarResp.getData();
+    }
+
+    /**
+     * Test free form object
+     * Test free form object
+     * @param body Free form object (optional)
+     * @return ApiResponse&lt;String&gt;
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public ApiResponse<String> testEchoBodyFreeFormObjectResponseStringWithHttpInfo(Object body) throws ApiException {
+        okhttp3.Call localVarCall = testEchoBodyFreeFormObjectResponseStringValidateBeforeCall(body, null);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        return localVarApiClient.execute(localVarCall, localVarReturnType);
+    }
+
+    /**
+     * Test free form object (asynchronously)
+     * Test free form object
+     * @param body Free form object (optional)
+     * @param _callback The callback to be executed when the API call finishes
+     * @return The request call
+     * @throws ApiException If fail to process the API call, e.g. serializing the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEchoBodyFreeFormObjectResponseStringAsync(Object body, final ApiCallback<String> _callback) throws ApiException {
+
+        okhttp3.Call localVarCall = testEchoBodyFreeFormObjectResponseStringValidateBeforeCall(body, _callback);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
+        return localVarCall;
+    }
     /**
      * Build call for testEchoBodyPet
      * @param pet Pet object that needs to be added to the store (optional)
@@ -423,4 +660,122 @@ public class BodyApi {
         localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
         return localVarCall;
     }
+    /**
+     * Build call for testEchoBodyTagResponseString
+     * @param tag Tag object (optional)
+     * @param _callback Callback for upload/download progress
+     * @return Call to execute
+     * @throws ApiException If fail to serialize the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEchoBodyTagResponseStringCall(Tag tag, final ApiCallback _callback) throws ApiException {
+        String basePath = null;
+        // Operation Servers
+        String[] localBasePaths = new String[] {  };
+
+        // Determine Base Path to Use
+        if (localCustomBaseUrl != null){
+            basePath = localCustomBaseUrl;
+        } else if ( localBasePaths.length > 0 ) {
+            basePath = localBasePaths[localHostIndex];
+        } else {
+            basePath = null;
+        }
+
+        Object localVarPostBody = tag;
+
+        // create path and map variables
+        String localVarPath = "/echo/body/Tag/response_string";
+
+        List<Pair> localVarQueryParams = new ArrayList<Pair>();
+        List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+        Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+        Map<String, String> localVarCookieParams = new HashMap<String, String>();
+        Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+        final String[] localVarAccepts = {
+            "text/plain"
+        };
+        final String localVarAccept = localVarApiClient.selectHeaderAccept(localVarAccepts);
+        if (localVarAccept != null) {
+            localVarHeaderParams.put("Accept", localVarAccept);
+        }
+
+        final String[] localVarContentTypes = {
+            "application/json"
+        };
+        final String localVarContentType = localVarApiClient.selectHeaderContentType(localVarContentTypes);
+        if (localVarContentType != null) {
+            localVarHeaderParams.put("Content-Type", localVarContentType);
+        }
+
+        String[] localVarAuthNames = new String[] {  };
+        return localVarApiClient.buildCall(basePath, localVarPath, "POST", localVarQueryParams, localVarCollectionQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAuthNames, _callback);
+    }
+
+    @SuppressWarnings("rawtypes")
+    private okhttp3.Call testEchoBodyTagResponseStringValidateBeforeCall(Tag tag, final ApiCallback _callback) throws ApiException {
+        return testEchoBodyTagResponseStringCall(tag, _callback);
+
+    }
+
+    /**
+     * Test empty json (request body)
+     * Test empty json (request body)
+     * @param tag Tag object (optional)
+     * @return String
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public String testEchoBodyTagResponseString(Tag tag) throws ApiException {
+        ApiResponse<String> localVarResp = testEchoBodyTagResponseStringWithHttpInfo(tag);
+        return localVarResp.getData();
+    }
+
+    /**
+     * Test empty json (request body)
+     * Test empty json (request body)
+     * @param tag Tag object (optional)
+     * @return ApiResponse&lt;String&gt;
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public ApiResponse<String> testEchoBodyTagResponseStringWithHttpInfo(Tag tag) throws ApiException {
+        okhttp3.Call localVarCall = testEchoBodyTagResponseStringValidateBeforeCall(tag, null);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        return localVarApiClient.execute(localVarCall, localVarReturnType);
+    }
+
+    /**
+     * Test empty json (request body) (asynchronously)
+     * Test empty json (request body)
+     * @param tag Tag object (optional)
+     * @param _callback The callback to be executed when the API call finishes
+     * @return The request call
+     * @throws ApiException If fail to process the API call, e.g. serializing the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEchoBodyTagResponseStringAsync(Tag tag, final ApiCallback<String> _callback) throws ApiException {
+
+        okhttp3.Call localVarCall = testEchoBodyTagResponseStringValidateBeforeCall(tag, _callback);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
+        return localVarCall;
+    }
 }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/api/QueryApi.java

@@ -31,6 +31,7 @@ import org.openapitools.client.model.DataQuery;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.StringEnumRef;
 import org.openapitools.client.model.TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter;
 import org.openapitools.client.model.TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter;
 
@@ -78,6 +79,127 @@ public class QueryApi {
         this.localCustomBaseUrl = customBaseUrl;
     }
 
+    /**
+     * Build call for testEnumRefString
+     * @param enumRefStringQuery  (optional)
+     * @param _callback Callback for upload/download progress
+     * @return Call to execute
+     * @throws ApiException If fail to serialize the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEnumRefStringCall(StringEnumRef enumRefStringQuery, final ApiCallback _callback) throws ApiException {
+        String basePath = null;
+        // Operation Servers
+        String[] localBasePaths = new String[] {  };
+
+        // Determine Base Path to Use
+        if (localCustomBaseUrl != null){
+            basePath = localCustomBaseUrl;
+        } else if ( localBasePaths.length > 0 ) {
+            basePath = localBasePaths[localHostIndex];
+        } else {
+            basePath = null;
+        }
+
+        Object localVarPostBody = null;
+
+        // create path and map variables
+        String localVarPath = "/query/enum_ref_string";
+
+        List<Pair> localVarQueryParams = new ArrayList<Pair>();
+        List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+        Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+        Map<String, String> localVarCookieParams = new HashMap<String, String>();
+        Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+        if (enumRefStringQuery != null) {
+            localVarQueryParams.addAll(localVarApiClient.parameterToPair("enum_ref_string_query", enumRefStringQuery));
+        }
+
+        final String[] localVarAccepts = {
+            "text/plain"
+        };
+        final String localVarAccept = localVarApiClient.selectHeaderAccept(localVarAccepts);
+        if (localVarAccept != null) {
+            localVarHeaderParams.put("Accept", localVarAccept);
+        }
+
+        final String[] localVarContentTypes = {
+        };
+        final String localVarContentType = localVarApiClient.selectHeaderContentType(localVarContentTypes);
+        if (localVarContentType != null) {
+            localVarHeaderParams.put("Content-Type", localVarContentType);
+        }
+
+        String[] localVarAuthNames = new String[] {  };
+        return localVarApiClient.buildCall(basePath, localVarPath, "GET", localVarQueryParams, localVarCollectionQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAuthNames, _callback);
+    }
+
+    @SuppressWarnings("rawtypes")
+    private okhttp3.Call testEnumRefStringValidateBeforeCall(StringEnumRef enumRefStringQuery, final ApiCallback _callback) throws ApiException {
+        return testEnumRefStringCall(enumRefStringQuery, _callback);
+
+    }
+
+    /**
+     * Test query parameter(s)
+     * Test query parameter(s)
+     * @param enumRefStringQuery  (optional)
+     * @return String
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public String testEnumRefString(StringEnumRef enumRefStringQuery) throws ApiException {
+        ApiResponse<String> localVarResp = testEnumRefStringWithHttpInfo(enumRefStringQuery);
+        return localVarResp.getData();
+    }
+
+    /**
+     * Test query parameter(s)
+     * Test query parameter(s)
+     * @param enumRefStringQuery  (optional)
+     * @return ApiResponse&lt;String&gt;
+     * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public ApiResponse<String> testEnumRefStringWithHttpInfo(StringEnumRef enumRefStringQuery) throws ApiException {
+        okhttp3.Call localVarCall = testEnumRefStringValidateBeforeCall(enumRefStringQuery, null);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        return localVarApiClient.execute(localVarCall, localVarReturnType);
+    }
+
+    /**
+     * Test query parameter(s) (asynchronously)
+     * Test query parameter(s)
+     * @param enumRefStringQuery  (optional)
+     * @param _callback The callback to be executed when the API call finishes
+     * @return The request call
+     * @throws ApiException If fail to process the API call, e.g. serializing the request body object
+     * @http.response.details
+     <table summary="Response Details" border="1">
+        <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
+        <tr><td> 200 </td><td> Successful operation </td><td>  -  </td></tr>
+     </table>
+     */
+    public okhttp3.Call testEnumRefStringAsync(StringEnumRef enumRefStringQuery, final ApiCallback<String> _callback) throws ApiException {
+
+        okhttp3.Call localVarCall = testEnumRefStringValidateBeforeCall(enumRefStringQuery, _callback);
+        Type localVarReturnType = new TypeToken<String>(){}.getType();
+        localVarApiClient.executeAsync(localVarCall, localVarReturnType, _callback);
+        return localVarCall;
+    }
     /**
      * Build call for testQueryDatetimeDateString
      * @param datetimeQuery  (optional)

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/Bird.java

@@ -32,6 +32,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -70,7 +74,6 @@ public class Bird {
    * @return size
   **/
   @javax.annotation.Nullable
-
   public String getSize() {
     return size;
   }
@@ -92,7 +95,6 @@ public class Bird {
    * @return color
   **/
   @javax.annotation.Nullable
-
   public String getColor() {
     return color;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/Category.java

@@ -32,6 +32,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -70,7 +74,6 @@ public class Category {
    * @return id
   **/
   @javax.annotation.Nullable
-
   public Long getId() {
     return id;
   }
@@ -92,7 +95,6 @@ public class Category {
    * @return name
   **/
   @javax.annotation.Nullable
-
   public String getName() {
     return name;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/DataQuery.java

@@ -36,6 +36,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -78,7 +82,6 @@ public class DataQuery extends Query {
    * @return suffix
   **/
   @javax.annotation.Nullable
-
   public String getSuffix() {
     return suffix;
   }
@@ -100,7 +103,6 @@ public class DataQuery extends Query {
    * @return text
   **/
   @javax.annotation.Nullable
-
   public String getText() {
     return text;
   }
@@ -122,7 +124,6 @@ public class DataQuery extends Query {
    * @return date
   **/
   @javax.annotation.Nullable
-
   public OffsetDateTime getDate() {
     return date;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/DataQueryAllOf.java

@@ -33,6 +33,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -75,7 +79,6 @@ public class DataQueryAllOf {
    * @return suffix
   **/
   @javax.annotation.Nullable
-
   public String getSuffix() {
     return suffix;
   }
@@ -97,7 +100,6 @@ public class DataQueryAllOf {
    * @return text
   **/
   @javax.annotation.Nullable
-
   public String getText() {
     return text;
   }
@@ -119,7 +121,6 @@ public class DataQueryAllOf {
    * @return date
   **/
   @javax.annotation.Nullable
-
   public OffsetDateTime getDate() {
     return date;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/DefaultValue.java

@@ -36,6 +36,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -155,7 +159,6 @@ public class DefaultValue {
    * @return arrayStringEnumRefDefault
   **/
   @javax.annotation.Nullable
-
   public List<StringEnumRef> getArrayStringEnumRefDefault() {
     return arrayStringEnumRefDefault;
   }
@@ -185,7 +188,6 @@ public class DefaultValue {
    * @return arrayStringEnumDefault
   **/
   @javax.annotation.Nullable
-
   public List<ArrayStringEnumDefaultEnum> getArrayStringEnumDefault() {
     return arrayStringEnumDefault;
   }
@@ -215,7 +217,6 @@ public class DefaultValue {
    * @return arrayStringDefault
   **/
   @javax.annotation.Nullable
-
   public List<String> getArrayStringDefault() {
     return arrayStringDefault;
   }
@@ -245,7 +246,6 @@ public class DefaultValue {
    * @return arrayIntegerDefault
   **/
   @javax.annotation.Nullable
-
   public List<Integer> getArrayIntegerDefault() {
     return arrayIntegerDefault;
   }
@@ -275,7 +275,6 @@ public class DefaultValue {
    * @return arrayString
   **/
   @javax.annotation.Nullable
-
   public List<String> getArrayString() {
     return arrayString;
   }
@@ -305,7 +304,6 @@ public class DefaultValue {
    * @return arrayStringNullable
   **/
   @javax.annotation.Nullable
-
   public List<String> getArrayStringNullable() {
     return arrayStringNullable;
   }
@@ -335,7 +333,6 @@ public class DefaultValue {
    * @return arrayStringExtensionNullable
   **/
   @javax.annotation.Nullable
-
   public List<String> getArrayStringExtensionNullable() {
     return arrayStringExtensionNullable;
   }
@@ -357,7 +354,6 @@ public class DefaultValue {
    * @return stringNullable
   **/
   @javax.annotation.Nullable
-
   public String getStringNullable() {
     return stringNullable;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/NumberPropertiesOnly.java

@@ -33,6 +33,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -75,7 +79,6 @@ public class NumberPropertiesOnly {
    * @return number
   **/
   @javax.annotation.Nullable
-
   public BigDecimal getNumber() {
     return number;
   }
@@ -97,7 +100,6 @@ public class NumberPropertiesOnly {
    * @return _float
   **/
   @javax.annotation.Nullable
-
   public Float getFloat() {
     return _float;
   }
@@ -121,7 +123,6 @@ public class NumberPropertiesOnly {
    * @return _double
   **/
   @javax.annotation.Nullable
-
   public Double getDouble() {
     return _double;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/Pet.java

@@ -36,6 +36,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -139,7 +143,6 @@ public class Pet {
    * @return id
   **/
   @javax.annotation.Nullable
-
   public Long getId() {
     return id;
   }
@@ -161,7 +164,6 @@ public class Pet {
    * @return name
   **/
   @javax.annotation.Nonnull
-
   public String getName() {
     return name;
   }
@@ -183,7 +185,6 @@ public class Pet {
    * @return category
   **/
   @javax.annotation.Nullable
-
   public Category getCategory() {
     return category;
   }
@@ -213,7 +214,6 @@ public class Pet {
    * @return photoUrls
   **/
   @javax.annotation.Nonnull
-
   public List<String> getPhotoUrls() {
     return photoUrls;
   }
@@ -243,7 +243,6 @@ public class Pet {
    * @return tags
   **/
   @javax.annotation.Nullable
-
   public List<Tag> getTags() {
     return tags;
   }
@@ -265,7 +264,6 @@ public class Pet {
    * @return status
   **/
   @javax.annotation.Nullable
-
   public StatusEnum getStatus() {
     return status;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/Query.java

@@ -34,6 +34,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -121,7 +125,6 @@ public class Query {
    * @return id
   **/
   @javax.annotation.Nullable
-
   public Long getId() {
     return id;
   }
@@ -151,7 +154,6 @@ public class Query {
    * @return outcomes
   **/
   @javax.annotation.Nullable
-
   public List<OutcomesEnum> getOutcomes() {
     return outcomes;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/Tag.java

@@ -32,6 +32,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -70,7 +74,6 @@ public class Tag {
    * @return id
   **/
   @javax.annotation.Nullable
-
   public Long getId() {
     return id;
   }
@@ -92,7 +95,6 @@ public class Tag {
    * @return name
   **/
   @javax.annotation.Nullable
-
   public String getName() {
     return name;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter.java

@@ -32,6 +32,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -78,7 +82,6 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
    * @return size
   **/
   @javax.annotation.Nullable
-
   public String getSize() {
     return size;
   }
@@ -100,7 +103,6 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
    * @return color
   **/
   @javax.annotation.Nullable
-
   public String getColor() {
     return color;
   }
@@ -122,7 +124,6 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
    * @return id
   **/
   @javax.annotation.Nullable
-
   public Long getId() {
     return id;
   }
@@ -144,7 +145,6 @@ public class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter
    * @return name
   **/
   @javax.annotation.Nullable
-
   public String getName() {
     return name;
   }

samples/client/echo_api/java/okhttp-gson/src/main/java/org/openapitools/client/model/TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter.java

@@ -34,6 +34,10 @@ import com.google.gson.JsonObject;
 import com.google.gson.JsonParseException;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.TypeAdapter;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import java.io.IOException;
 
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -76,7 +80,6 @@ public class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter {
    * @return values
   **/
   @javax.annotation.Nullable
-
   public List<String> getValues() {
     return values;
   }