diff --git a/bin/configs/kotlin-server-jaxrs-spec.yaml b/bin/configs/kotlin-server-jaxrs-spec.yaml
new file mode 100644
index 00000000000..11d4fcec7a8
--- /dev/null
+++ b/bin/configs/kotlin-server-jaxrs-spec.yaml
@@ -0,0 +1,7 @@
+generatorName: kotlin-server
+outputDir: samples/server/petstore/kotlin-server/jaxrs-spec
+library: jaxrs-spec
+inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/kotlin-server
+additionalProperties:
+  useCoroutines: "true"
diff --git a/docs/generators/kotlin-server.md b/docs/generators/kotlin-server.md
index 4d79d17024f..9fa866983a4 100644
--- a/docs/generators/kotlin-server.md
+++ b/docs/generators/kotlin-server.md
@@ -30,15 +30,19 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |featureLocations|Generates routes in a typed way, for both: constructing URLs and reading the parameters.| |true|
 |featureMetrics|Enables metrics feature.| |true|
 |groupId|Generated artifact package's organization (i.e. maven groupId).| |org.openapitools|
-|library|library template (sub-template)|<dl><dt>**ktor**</dt><dd>ktor framework</dd></dl>|ktor|
+|interfaceOnly|Whether to generate only API interface stubs without the server files. This option is currently supported only when using jaxrs-spec library.| |false|
+|library|library template (sub-template)|<dl><dt>**ktor**</dt><dd>ktor framework</dd><dt>**jaxrs-spec**</dt><dd>JAX-RS spec only</dd></dl>|ktor|
 |modelMutable|Create mutable models| |false|
 |packageName|Generated artifact package name.| |org.openapitools.server|
 |parcelizeModels|toggle &quot;@Parcelize&quot; for generated models| |null|
+|returnResponse|Whether generate API interface should return javax.ws.rs.core.Response instead of a deserialized entity. Only useful if interfaceOnly is true. This option is currently supported only when using jaxrs-spec library.| |false|
 |serializableModel|boolean - toggle &quot;implements Serializable&quot; for generated models| |null|
 |serializationLibrary|What serialization library to use: 'moshi' (default), or 'gson' or 'jackson'| |moshi|
 |sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |null|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |null|
 |sourceFolder|source folder for generated code| |src/main/kotlin|
+|useBeanValidation|Use BeanValidation API annotations. This option is currently supported only when using jaxrs-spec library.| |false|
+|useCoroutines|Whether to use the Coroutines. This option is currently supported only when using jaxrs-spec library.| |false|
 
 ## IMPORT MAPPING
 
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinServerCodegen.java
index 3caa91e404d..d1b1d1d57fb 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinServerCodegen.java
@@ -23,6 +23,7 @@ import org.openapitools.codegen.CliOption;
 import org.openapitools.codegen.CodegenConstants;
 import org.openapitools.codegen.CodegenType;
 import org.openapitools.codegen.SupportingFile;
+import org.openapitools.codegen.languages.features.BeanValidationFeatures;
 import org.openapitools.codegen.meta.features.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -33,9 +34,14 @@ import java.util.EnumSet;
 import java.util.List;
 import java.util.Map;
 
-public class KotlinServerCodegen extends AbstractKotlinCodegen {
+public class KotlinServerCodegen extends AbstractKotlinCodegen implements BeanValidationFeatures {
+
+    public static final String INTERFACE_ONLY = "interfaceOnly";
+    public static final String USE_COROUTINES = "useCoroutines";
+    public static final String RETURN_RESPONSE = "returnResponse";
     public static final String DEFAULT_LIBRARY = Constants.KTOR;
     private final Logger LOGGER = LoggerFactory.getLogger(KotlinServerCodegen.class);
+
     private Boolean autoHeadFeatureEnabled = true;
     private Boolean conditionalHeadersFeatureEnabled = false;
     private Boolean hstsFeatureEnabled = true;
@@ -43,6 +49,10 @@ public class KotlinServerCodegen extends AbstractKotlinCodegen {
     private Boolean compressionFeatureEnabled = true;
     private Boolean locationsFeatureEnabled = true;
     private Boolean metricsFeatureEnabled = true;
+    private boolean interfaceOnly = false;
+    private boolean useBeanValidation = false;
+    private boolean useCoroutines = false;
+    private boolean returnResponse = false;
 
     // This is here to potentially warn the user when an option is not supported by the target framework.
     private Map<String, List<String>> optionsSupportedPerFramework = new ImmutableMap.Builder<String, List<String>>()
@@ -102,6 +112,7 @@ public class KotlinServerCodegen extends AbstractKotlinCodegen {
         modelPackage = packageName + ".models";
 
         supportedLibraries.put(Constants.KTOR, "ktor framework");
+        supportedLibraries.put(Constants.JAXRS_SPEC, "JAX-RS spec only");
 
         // TODO: Configurable server engine. Defaults to netty in build.gradle.
         CliOption library = new CliOption(CodegenConstants.LIBRARY, CodegenConstants.LIBRARY_DESC);
@@ -117,6 +128,11 @@ public class KotlinServerCodegen extends AbstractKotlinCodegen {
         addSwitch(Constants.COMPRESSION, Constants.COMPRESSION_DESC, getCompressionFeatureEnabled());
         addSwitch(Constants.LOCATIONS, Constants.LOCATIONS_DESC, getLocationsFeatureEnabled());
         addSwitch(Constants.METRICS, Constants.METRICS_DESC, getMetricsFeatureEnabled());
+
+        cliOptions.add(CliOption.newBoolean(INTERFACE_ONLY, "Whether to generate only API interface stubs without the server files. This option is currently supported only when using jaxrs-spec library.").defaultValue(String.valueOf(interfaceOnly)));
+        cliOptions.add(CliOption.newBoolean(USE_BEANVALIDATION, "Use BeanValidation API annotations. This option is currently supported only when using jaxrs-spec library.", useBeanValidation));
+        cliOptions.add(CliOption.newBoolean(USE_COROUTINES, "Whether to use the Coroutines. This option is currently supported only when using jaxrs-spec library."));
+        cliOptions.add(CliOption.newBoolean(RETURN_RESPONSE, "Whether generate API interface should return javax.ws.rs.core.Response instead of a deserialized entity. Only useful if interfaceOnly is true. This option is currently supported only when using jaxrs-spec library.").defaultValue(String.valueOf(returnResponse)));
     }
 
     public Boolean getAutoHeadFeatureEnabled() {
@@ -191,6 +207,37 @@ public class KotlinServerCodegen extends AbstractKotlinCodegen {
     public void processOpts() {
         super.processOpts();
 
+        if (additionalProperties.containsKey(CodegenConstants.LIBRARY)) {
+            this.setLibrary((String) additionalProperties.get(CodegenConstants.LIBRARY));
+        }
+
+        if (additionalProperties.containsKey(INTERFACE_ONLY)) {
+            interfaceOnly = Boolean.parseBoolean(additionalProperties.get(INTERFACE_ONLY).toString());
+            if (!interfaceOnly) {
+                additionalProperties.remove(INTERFACE_ONLY);
+            }
+        }
+
+        if (additionalProperties.containsKey(USE_COROUTINES)) {
+            useCoroutines = Boolean.parseBoolean(additionalProperties.get(USE_COROUTINES).toString());
+            if (!useCoroutines) {
+                additionalProperties.remove(USE_COROUTINES);
+            }
+        }
+
+        if (additionalProperties.containsKey(RETURN_RESPONSE)) {
+            returnResponse = Boolean.parseBoolean(additionalProperties.get(RETURN_RESPONSE).toString());
+            if (!returnResponse) {
+                additionalProperties.remove(RETURN_RESPONSE);
+            }
+        }
+
+        if (additionalProperties.containsKey(USE_BEANVALIDATION)) {
+            setUseBeanValidation(convertPropertyToBoolean(USE_BEANVALIDATION));
+        }
+
+        writePropertyBack(USE_BEANVALIDATION, useBeanValidation);
+
         // set default library to "ktor"
         if (StringUtils.isEmpty(library)) {
             this.setLibrary(DEFAULT_LIBRARY);
@@ -245,29 +292,40 @@ public class KotlinServerCodegen extends AbstractKotlinCodegen {
         String resourcesFolder = "src/main/resources"; // not sure this can be user configurable.
 
         supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
-        supportingFiles.add(new SupportingFile("Dockerfile.mustache", "", "Dockerfile"));
+
+        if (library.equals(Constants.KTOR)) {
+            supportingFiles.add(new SupportingFile("Dockerfile.mustache", "", "Dockerfile"));
+        }
 
         supportingFiles.add(new SupportingFile("build.gradle.mustache", "", "build.gradle"));
         supportingFiles.add(new SupportingFile("settings.gradle.mustache", "", "settings.gradle"));
         supportingFiles.add(new SupportingFile("gradle.properties", "", "gradle.properties"));
 
-        supportingFiles.add(new SupportingFile("AppMain.kt.mustache", packageFolder, "AppMain.kt"));
-        supportingFiles.add(new SupportingFile("Configuration.kt.mustache", packageFolder, "Configuration.kt"));
+        if (library.equals(Constants.KTOR)) {
+            supportingFiles.add(new SupportingFile("AppMain.kt.mustache", packageFolder, "AppMain.kt"));
+            supportingFiles.add(new SupportingFile("Configuration.kt.mustache", packageFolder, "Configuration.kt"));
 
-        if (generateApis && locationsFeatureEnabled) {
-            supportingFiles.add(new SupportingFile("Paths.kt.mustache", packageFolder, "Paths.kt"));
+            if (generateApis && locationsFeatureEnabled) {
+                supportingFiles.add(new SupportingFile("Paths.kt.mustache", packageFolder, "Paths.kt"));
+            }
+
+            supportingFiles.add(new SupportingFile("application.conf.mustache", resourcesFolder, "application.conf"));
+            supportingFiles.add(new SupportingFile("logback.xml", resourcesFolder, "logback.xml"));
+
+            final String infrastructureFolder = (sourceFolder + File.separator + packageName + File.separator + "infrastructure").replace(".", File.separator);
+
+            supportingFiles.add(new SupportingFile("ApiKeyAuth.kt.mustache", infrastructureFolder, "ApiKeyAuth.kt"));
         }
+    }
 
-        supportingFiles.add(new SupportingFile("application.conf.mustache", resourcesFolder, "application.conf"));
-        supportingFiles.add(new SupportingFile("logback.xml", resourcesFolder, "logback.xml"));
-
-        final String infrastructureFolder = (sourceFolder + File.separator + packageName + File.separator + "infrastructure").replace(".", File.separator);
-
-        supportingFiles.add(new SupportingFile("ApiKeyAuth.kt.mustache", infrastructureFolder, "ApiKeyAuth.kt"));
+    @Override
+    public void setUseBeanValidation(boolean useBeanValidation) {
+        this.useBeanValidation = useBeanValidation;
     }
 
     public static class Constants {
         public final static String KTOR = "ktor";
+        public final static String JAXRS_SPEC = "jaxrs-spec";
         public final static String AUTOMATIC_HEAD_REQUESTS = "featureAutoHead";
         public final static String AUTOMATIC_HEAD_REQUESTS_DESC = "Automatically provide responses to HEAD requests for existing routes that have the GET verb defined.";
         public final static String CONDITIONAL_HEADERS = "featureConditionalHeaders";
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/additionalModelTypeAnnotations.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/additionalModelTypeAnnotations.mustache
new file mode 100644
index 00000000000..f4871c02cc2
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/additionalModelTypeAnnotations.mustache
@@ -0,0 +1,2 @@
+{{#additionalModelTypeAnnotations}}{{{.}}}
+{{/additionalModelTypeAnnotations}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/api.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/api.mustache
new file mode 100644
index 00000000000..2d716bd7fdf
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/api.mustache
@@ -0,0 +1,31 @@
+package {{package}};
+
+{{#imports}}import {{import}}
+{{/imports}}
+
+import javax.ws.rs.*
+import javax.ws.rs.core.Response
+
+{{#useSwaggerAnnotations}}
+import io.swagger.annotations.*
+{{/useSwaggerAnnotations}}
+
+import java.io.InputStream
+import java.util.Map
+import java.util.List
+{{#useBeanValidation}}import javax.validation.constraints.*
+import javax.validation.Valid{{/useBeanValidation}}
+
+{{#useSwaggerAnnotations}}
+@Api(description = "the {{{baseName}}} API"){{/useSwaggerAnnotations}}{{#hasConsumes}}
+@Consumes({ {{#consumes}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/consumes}} }){{/hasConsumes}}{{#hasProduces}}
+@Produces({ {{#produces}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/produces}} }){{/hasProduces}}
+@Path("/")
+{{>generatedAnnotation}}{{#interfaceOnly}}interface{{/interfaceOnly}}{{^interfaceOnly}}class{{/interfaceOnly}} {{classname}} {
+{{#operations}}
+{{#operation}}
+
+{{#interfaceOnly}}{{>apiInterface}}{{/interfaceOnly}}{{^interfaceOnly}}{{>apiMethod}}{{/interfaceOnly}}
+{{/operation}}
+}
+{{/operations}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiInterface.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiInterface.mustache
new file mode 100644
index 00000000000..d64ab757938
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiInterface.mustache
@@ -0,0 +1,13 @@
+    @{{httpMethod}}
+    @Path("{{{path}}}"){{#hasConsumes}}
+    @Consumes({{#consumes}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/consumes}}){{/hasConsumes}}{{#hasProduces}}
+    @Produces({{#produces}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/produces}}){{/hasProduces}}{{#useSwaggerAnnotations}}
+    @ApiOperation(value = "{{{summary}}}", notes = "{{{notes}}}"{{#hasAuthMethods}}, authorizations = {
+        {{#authMethods}}{{#isOAuth}}@Authorization(value = "{{name}}", scopes = {
+            {{#scopes}}@AuthorizationScope(scope = "{{scope}}", description = "{{description}}"){{^-last}},
+            {{/-last}}{{/scopes}} }){{^-last}},{{/-last}}{{/isOAuth}}
+        {{^isOAuth}}@Authorization(value = "{{name}}"){{^-last}},{{/-last}}
+        {{/isOAuth}}{{/authMethods}} }{{/hasAuthMethods}}, tags={ {{#vendorExtensions.x-tags}}"{{tag}}"{{^-last}}, {{/-last}}{{/vendorExtensions.x-tags}} })
+    @ApiResponses(value = { {{#responses}}
+        @ApiResponse(code = {{{code}}}, message = "{{{message}}}", response = {{{baseType}}}.class{{#returnContainer}}, responseContainer = "{{{.}}}"{{/returnContainer}}){{^-last}},{{/-last}}{{/responses}} }){{/useSwaggerAnnotations}}
+    {{#useCoroutines}}suspend {{/useCoroutines}}fun {{nickname}}({{#allParams}}{{>queryParams}}{{>pathParams}}{{>headerParams}}{{>bodyParams}}{{>formParams}}{{^-last}},{{/-last}}{{/allParams}}){{#returnResponse}}: Response{{/returnResponse}}{{^returnResponse}}{{#returnType}}: {{{returnType}}}{{/returnType}}{{/returnResponse}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiMethod.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiMethod.mustache
new file mode 100644
index 00000000000..bfe70607f17
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/apiMethod.mustache
@@ -0,0 +1,16 @@
+    @{{httpMethod}}{{#subresourceOperation}}
+    @Path("{{{path}}}"){{/subresourceOperation}}{{#hasConsumes}}
+    @Consumes({{#consumes}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/consumes}}){{/hasConsumes}}{{#hasProduces}}
+    @Produces({{#produces}}"{{{mediaType}}}"{{^-last}}, {{/-last}}{{/produces}}){{/hasProduces}}{{#useSwaggerAnnotations}}
+    @ApiOperation(value = "{{{summary}}}", notes = "{{{notes}}}", response = {{{returnBaseType}}}.class{{#returnContainer}}, responseContainer = "{{{.}}}"{{/returnContainer}}{{#hasAuthMethods}}, authorizations = {
+        {{#authMethods}}{{#isOAuth}}@Authorization(value = "{{name}}", scopes = {
+            {{#scopes}}@AuthorizationScope(scope = "{{scope}}", description = "{{description}}"){{^-last}},
+            {{/-last}}{{/scopes}} }){{^-last}},{{/-last}}{{/isOAuth}}
+        {{^isOAuth}}@Authorization(value = "{{name}}"){{^-last}},{{/-last}}
+        {{/isOAuth}}{{/authMethods}} }{{/hasAuthMethods}}, tags={ {{#vendorExtensions.x-tags}}"{{tag}}"{{^-last}}, {{/-last}}{{/vendorExtensions.x-tags}} })
+    @ApiResponses(value = { {{#responses}}
+        @ApiResponse(code = {{{code}}}, message = "{{{message}}}", response = {{{baseType}}}.class{{#containerType}}, responseContainer = "{{{.}}}"{{/containerType}}){{^-last}},{{/-last}}{{/responses}}
+    }){{/useSwaggerAnnotations}}
+    {{#useCoroutines}}suspend {{/useCoroutines}}fun {{nickname}}({{#allParams}}{{>queryParams}}{{>pathParams}}{{>cookieParams}}{{>headerParams}}{{>bodyParams}}{{>formParams}}{{^-last}},{{/-last}}{{/allParams}}): Response {
+        return Response.ok().entity("magic!").build();
+    }
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidation.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidation.mustache
new file mode 100644
index 00000000000..ef7ab3fb7a9
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidation.mustache
@@ -0,0 +1,5 @@
+    @Valid
+{{#required}}
+    @NotNull
+{{/required}}
+{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationCore.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationCore.mustache
new file mode 100644
index 00000000000..d6e2f13b457
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationCore.mustache
@@ -0,0 +1,20 @@
+{{#pattern}} @Pattern(regexp="{{{.}}}"){{/pattern}}{{!
+minLength && maxLength set
+}}{{#minLength}}{{#maxLength}} @Size(min={{minLength}},max={{maxLength}}){{/maxLength}}{{/minLength}}{{!
+minLength set, maxLength not
+}}{{#minLength}}{{^maxLength}} @Size(min={{minLength}}){{/maxLength}}{{/minLength}}{{!
+minLength not set, maxLength set
+}}{{^minLength}}{{#maxLength}} @Size(max={{.}}){{/maxLength}}{{/minLength}}{{!
+@Size: minItems && maxItems set
+}}{{#minItems}}{{#maxItems}} @Size(min={{minItems}},max={{maxItems}}){{/maxItems}}{{/minItems}}{{!
+@Size: minItems set, maxItems not
+}}{{#minItems}}{{^maxItems}} @Size(min={{minItems}}){{/maxItems}}{{/minItems}}{{!
+@Size: minItems not set && maxItems set
+}}{{^minItems}}{{#maxItems}} @Size(max={{.}}){{/maxItems}}{{/minItems}}{{!
+check for integer or long / all others=decimal type with @Decimal*
+isInteger set
+}}{{#isInteger}}{{#minimum}} @Min({{.}}){{/minimum}}{{#maximum}} @Max({{.}}){{/maximum}}{{/isInteger}}{{!
+isLong set
+}}{{#isLong}}{{#minimum}} @Min({{.}}L){{/minimum}}{{#maximum}} @Max({{.}}L){{/maximum}}{{/isLong}}{{!
+Not Integer, not Long => we have a decimal value!
+}}{{^isInteger}}{{^isLong}}{{#minimum}} @DecimalMin({{#exclusiveMinimum}}value={{/exclusiveMinimum}}"{{minimum}}"{{#exclusiveMinimum}},inclusive=false{{/exclusiveMinimum}}){{/minimum}}{{#maximum}} @DecimalMax({{#exclusiveMaximum}}value={{/exclusiveMaximum}}"{{maximum}}"{{#exclusiveMaximum}},inclusive=false{{/exclusiveMaximum}}){{/maximum}}{{/isLong}}{{/isInteger}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationHeaderParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationHeaderParams.mustache
new file mode 100644
index 00000000000..c4ff01d7e55
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationHeaderParams.mustache
@@ -0,0 +1 @@
+{{#required}} @NotNull{{/required}}{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationPathParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationPathParams.mustache
new file mode 100644
index 00000000000..051bd53c0a5
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationPathParams.mustache
@@ -0,0 +1 @@
+{{! PathParam is always required, no @NotNull necessary }}{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationQueryParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationQueryParams.mustache
new file mode 100644
index 00000000000..c4ff01d7e55
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/beanValidationQueryParams.mustache
@@ -0,0 +1 @@
+{{#required}} @NotNull{{/required}}{{>beanValidationCore}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/bodyParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/bodyParams.mustache
new file mode 100644
index 00000000000..ba9197f35a4
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/bodyParams.mustache
@@ -0,0 +1 @@
+{{#isBodyParam}}{{#useBeanValidation}}@Valid {{#required}}{{^isNullable}}@NotNull {{/isNullable}}{{/required}}{{/useBeanValidation}} {{paramName}}: {{{dataType}}}{{^required}}?{{/required}}{{/isBodyParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/build.gradle.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/build.gradle.mustache
new file mode 100644
index 00000000000..639084ec35b
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/build.gradle.mustache
@@ -0,0 +1,57 @@
+group "{{groupId}}"
+version "{{artifactVersion}}"
+
+wrapper {
+    gradleVersion = "6.9"
+    distributionUrl = "https://services.gradle.org/distributions/gradle-$gradleVersion-all.zip"
+}
+
+buildscript {
+    ext.kotlin_version = "1.4.32"
+    ext.jakarta_ws_rs_version = "2.1.6"
+    ext.swagger_annotations_version = "1.5.3"
+    ext.jakarta_annotations_version = "1.3.5"
+    ext.jackson_version = "2.9.9"
+{{#useBeanValidation}}
+    ext.beanvalidation_version = "2.0.2"
+{{/useBeanValidation}}
+    repositories {
+        maven { url "https://repo1.maven.org/maven2" }
+        maven { url "https://plugins.gradle.org/m2/" }
+    }
+    dependencies {
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version")
+    }
+}
+
+apply plugin: "java"
+apply plugin: "kotlin"
+apply plugin: "application"
+
+sourceCompatibility = 1.8
+
+compileKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+repositories {
+    maven { setUrl("https://repo1.maven.org/maven2") }
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version")
+    implementation("ch.qos.logback:logback-classic:1.2.1")
+    implementation("jakarta.ws.rs:jakarta.ws.rs-api:$jakarta_ws_rs_version")
+    implementation("jakarta.annotation:jakarta.annotation-api:$jakarta_annotations_version")
+    implementation("io.swagger:swagger-annotations:$swagger_annotations_version")
+    implementation("com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:$jackson_version")
+    implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version")
+{{#useBeanValidation}}
+    implementation("jakarta.validation:jakarta.validation-api:$beanvalidation_version")
+{{/useBeanValidation}}
+    testImplementation("junit:junit:4.13.2")
+}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/cookieParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/cookieParams.mustache
new file mode 100644
index 00000000000..eda2d526ebd
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/cookieParams.mustache
@@ -0,0 +1 @@
+{{#isCookieParam}}@CookieParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}{{^isContainer}}{{#defaultValue}} @DefaultValue("{{{.}}}"){{/defaultValue}}{{/isContainer}} {{#useSwaggerAnnotations}}{{#description}} @ApiParam("{{.}}"){{/description}}{{/useSwaggerAnnotations}} {{paramName}}: {{{dataType}}}{{^required}}?{{/required}}{{/isCookieParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class.mustache
new file mode 100644
index 00000000000..c0fdd457ba7
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class.mustache
@@ -0,0 +1,73 @@
+import com.fasterxml.jackson.annotation.JsonProperty
+{{#kotlinx_serialization}}
+import {{#serializableModel}}kotlinx.serialization.Serializable as KSerializable{{/serializableModel}}{{^serializableModel}}kotlinx.serialization.Serializable{{/serializableModel}}
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Contextual
+{{#hasEnums}}
+{{/hasEnums}}
+{{/kotlinx_serialization}}
+{{#parcelizeModels}}
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+{{/parcelizeModels}}
+{{#serializableModel}}
+import java.io.Serializable
+{{/serializableModel}}
+/**
+ * {{{description}}}
+ *
+{{#allVars}}
+ * @param {{{name}}} {{{description}}}
+{{/allVars}}
+ */
+{{#parcelizeModels}}
+@Parcelize
+{{/parcelizeModels}}
+{{#multiplatform}}{{^discriminator}}@Serializable{{/discriminator}}{{/multiplatform}}{{#kotlinx_serialization}}{{#serializableModel}}@KSerializable{{/serializableModel}}{{^serializableModel}}@Serializable{{/serializableModel}}{{/kotlinx_serialization}}{{#moshi}}{{#moshiCodeGen}}@JsonClass(generateAdapter = true){{/moshiCodeGen}}{{/moshi}}{{#jackson}}{{#discriminator}}{{>typeInfoAnnotation}}{{/discriminator}}{{/jackson}}
+{{#isDeprecated}}
+@Deprecated(message = "This schema is deprecated.")
+{{/isDeprecated}}
+{{>additionalModelTypeAnnotations}}
+{{#nonPublicApi}}internal {{/nonPublicApi}}{{#discriminator}}interface{{/discriminator}}{{^discriminator}}data class{{/discriminator}} {{classname}}{{^discriminator}} (
+
+{{#allVars}}
+{{#required}}{{>data_class_req_var}}{{/required}}{{^required}}{{>data_class_opt_var}}{{/required}}{{^-last}},{{/-last}}
+
+{{/allVars}}
+){{/discriminator}}{{#parent}}{{^serializableModel}}{{^parcelizeModels}} : {{{parent}}}{{#isMap}}(){{/isMap}}{{#isArray}}(){{/isArray}}{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{#parent}}{{#serializableModel}}{{^parcelizeModels}} : {{{parent}}}{{#isMap}}(){{/isMap}}{{#isArray}}(){{/isArray}}, Serializable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{#parent}}{{^serializableModel}}{{#parcelizeModels}} : {{{parent}}}{{#isMap}}(){{/isMap}}{{#isArray}}(){{/isArray}}, Parcelable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{#parent}}{{#serializableModel}}{{#parcelizeModels}} : {{{parent}}}{{#isMap}}(){{/isMap}}{{#isArray}}(){{/isArray}}, Serializable, Parcelable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{^parent}}{{#serializableModel}}{{^parcelizeModels}} : Serializable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{^parent}}{{^serializableModel}}{{#parcelizeModels}} : Parcelable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{^parent}}{{#serializableModel}}{{#parcelizeModels}} : Serializable, Parcelable{{/parcelizeModels}}{{/serializableModel}}{{/parent}}{{#vendorExtensions.x-has-data-class-body}} {
+{{/vendorExtensions.x-has-data-class-body}}
+{{#serializableModel}}
+    {{#nonPublicApi}}internal {{/nonPublicApi}}companion object {
+        private const val serialVersionUID: Long = 123
+    }
+{{/serializableModel}}
+{{#discriminator}}{{#vars}}{{#required}}
+{{>interface_req_var}}{{/required}}{{^required}}
+{{>interface_opt_var}}{{/required}}{{/vars}}{{/discriminator}}
+{{#hasEnums}}
+{{#vars}}
+{{#isEnum}}
+    /**
+     * {{{description}}}
+     *
+     * Values: {{#allowableValues}}{{#enumVars}}{{&name}}{{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
+     */
+    {{#kotlinx_serialization}}
+    {{#serializableModel}}@KSerializable{{/serializableModel}}{{^serializableModel}}@Serializable{{/serializableModel}}
+    {{/kotlinx_serialization}}
+    {{#nonPublicApi}}internal {{/nonPublicApi}}enum class {{{nameInCamelCase}}}(val value: {{^isContainer}}{{dataType}}{{/isContainer}}{{#isContainer}}kotlin.String{{/isContainer}}) {
+    {{#allowableValues}}
+    {{#enumVars}}
+        @JsonProperty(value = {{^isString}}"{{/isString}}{{{value}}}{{^isString}}"{{/isString}}) {{&name}}({{{value}}}){{^-last}},{{/-last}}{{#-last}};{{/-last}}
+        {{#kotlinx_serialization}}
+        @SerialName(value = {{^isString}}"{{/isString}}{{{value}}}{{^isString}}"{{/isString}}) {{&name}}({{{value}}}){{^-last}},{{/-last}}{{#-last}};{{/-last}}
+        {{/kotlinx_serialization}}
+    {{/enumVars}}
+    {{/allowableValues}}
+    }
+{{/isEnum}}
+{{/vars}}
+{{/hasEnums}}
+{{#vendorExtensions.x-has-data-class-body}}
+}
+{{/vendorExtensions.x-has-data-class-body}}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_opt_var.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_opt_var.mustache
new file mode 100644
index 00000000000..d99ccd902fa
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_opt_var.mustache
@@ -0,0 +1,6 @@
+{{#description}}
+    /* {{{.}}} */
+{{/description}}
+
+    @JsonProperty("{{{baseName}}}")
+{{#useBeanValidation}}{{>beanValidation}}{{/useBeanValidation}}    {{>modelMutable}} {{{name}}}: {{#isEnum}}{{classname}}.{{nameInCamelCase}}{{/isEnum}}{{^isEnum}}{{{dataType}}}{{/isEnum}}? = {{{defaultValue}}}{{^defaultValue}}null{{/defaultValue}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_req_var.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_req_var.mustache
new file mode 100644
index 00000000000..5c69ae13e51
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/data_class_req_var.mustache
@@ -0,0 +1,6 @@
+{{#description}}
+    /* {{{.}}} */
+{{/description}}
+
+    @JsonProperty("{{{baseName}}}")
+{{#useBeanValidation}}{{>beanValidation}}{{/useBeanValidation}}    {{>modelMutable}} {{{name}}}: {{#isEnum}}{{classname}}.{{nameInCamelCase}}{{/isEnum}}{{^isEnum}}{{{dataType}}}{{/isEnum}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_class.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_class.mustache
new file mode 100644
index 00000000000..005b9daa596
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_class.mustache
@@ -0,0 +1,58 @@
+import com.fasterxml.jackson.annotation.JsonProperty
+{{#kotlinx_serialization}}
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+{{/kotlinx_serialization}}
+
+/**
+ * {{{description}}}
+ *
+ * Values: {{#allowableValues}}{{#enumVars}}{{&name}}{{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
+ */
+{{#kotlinx_serialization}}@Serializable{{/kotlinx_serialization}}
+{{>additionalModelTypeAnnotations}}
+{{#nonPublicApi}}internal {{/nonPublicApi}}enum class {{classname}}(val value: {{{dataType}}}) {
+{{#allowableValues}}{{#enumVars}}
+    @JsonProperty(value = {{^isString}}"{{/isString}}{{{value}}}{{^isString}}"{{/isString}})
+    {{#kotlinx_serialization}}
+    @SerialName(value = {{^isString}}"{{/isString}}{{{value}}}{{^isString}}"{{/isString}})
+    {{/kotlinx_serialization}}
+    {{#isArray}}
+    {{#isList}}
+    {{&name}}(listOf({{{value}}})){{^-last}},{{/-last}}{{#-last}};{{/-last}}
+    {{/isList}}
+    {{^isList}}
+    {{&name}}(arrayOf({{{value}}})){{^-last}},{{/-last}}{{#-last}};{{/-last}}
+    {{/isList}}
+    {{/isArray}}
+    {{^isArray}}
+    {{&name}}({{{value}}}){{^-last}},{{/-last}}{{#-last}};{{/-last}}
+    {{/isArray}}
+{{/enumVars}}{{/allowableValues}}
+    /**
+     * Override toString() to avoid using the enum variable name as the value, and instead use
+     * the actual value defined in the API spec file.
+     *
+     * This solves a problem when the variable name and its value are different, and ensures that
+     * the client sends the correct enum values to the server always.
+     */
+    override fun toString(): String = value{{^isString}}.toString(){{/isString}}
+
+    companion object {
+        /**
+         * Converts the provided [data] to a [String] on success, null otherwise.
+         */
+        fun encode(data: Any?): kotlin.String? = if (data is {{classname}}) "$data" else null
+
+        /**
+         * Returns a valid [{{classname}}] for [data], null otherwise.
+         */
+        @OptIn(ExperimentalStdlibApi::class)
+        fun decode(data: Any?): {{classname}}? = data?.let {
+          val normalizedData = "$it".lowercase()
+          values().firstOrNull { value ->
+            it == value || normalizedData == "$value".lowercase()
+          }
+        }
+    }
+}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_doc.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_doc.mustache
new file mode 100644
index 00000000000..fcb3d7e61aa
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/enum_doc.mustache
@@ -0,0 +1,7 @@
+# {{classname}}
+
+## Enum
+
+{{#allowableValues}}{{#enumVars}}
+    * `{{name}}` (value: `{{{value}}}`)
+{{/enumVars}}{{/allowableValues}}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/formParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/formParams.mustache
new file mode 100644
index 00000000000..5427f037ae0
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/formParams.mustache
@@ -0,0 +1 @@
+{{#isFormParam}}{{^isFile}}@FormParam(value = "{{baseName}}") {{paramName}}: {{{dataType}}}{{^required}}?{{/required}}{{/isFile}}{{#isFile}} @FormParam(value = "{{baseName}}") {{paramName}}InputStream: InputStream{{^required}}?{{/required}}{{/isFile}}{{/isFormParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/generatedAnnotation.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/generatedAnnotation.mustache
new file mode 100644
index 00000000000..624b44019ad
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/generatedAnnotation.mustache
@@ -0,0 +1 @@
+@javax.annotation.Generated(value = arrayOf("{{generatorClass}}"){{^hideGenerationTimestamp}}, date = "{{generatedDate}}"{{/hideGenerationTimestamp}})
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/gradle.properties b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/gradle.properties
new file mode 100644
index 00000000000..5f1ed7bbe02
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/gradle.properties
@@ -0,0 +1 @@
+org.gradle.caching=true
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/headerParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/headerParams.mustache
new file mode 100644
index 00000000000..980d55c7e51
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/headerParams.mustache
@@ -0,0 +1 @@
+{{#isHeaderParam}}@HeaderParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationHeaderParams}}{{/useBeanValidation}} {{#defaultValue}} @DefaultValue("{{{.}}}"){{/defaultValue}} {{#useSwaggerAnnotations}}{{#description}} @ApiParam("{{.}}"){{/description}}{{/useSwaggerAnnotations}} {{paramName}}: {{{dataType}}}{{^required}}?{{/required}}{{/isHeaderParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model.mustache
new file mode 100644
index 00000000000..03eecdc64ac
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model.mustache
@@ -0,0 +1,14 @@
+{{>licenseInfo}}
+package {{modelPackage}}
+
+{{#imports}}import {{import}}
+{{/imports}}
+{{#useBeanValidation}}
+import javax.validation.constraints.*
+import javax.validation.Valid
+{{/useBeanValidation}}
+{{#models}}
+{{#model}}
+{{#isEnum}}{{>enum_class}}{{/isEnum}}{{^isEnum}}{{#oneOf}}{{>oneof_model}}{{/oneOf}}{{^oneOf}}{{#isAlias}}typealias {{classname}} = {{{dataType}}}{{/isAlias}}{{^isAlias}}{{>data_class}}{{/isAlias}}{{/oneOf}}{{/isEnum}}
+{{/model}}
+{{/models}}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model_doc.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model_doc.mustache
new file mode 100644
index 00000000000..e3b71842118
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/model_doc.mustache
@@ -0,0 +1,3 @@
+{{#models}}{{#model}}
+{{#isEnum}}{{>enum_doc}}{{/isEnum}}{{^isEnum}}{{>class_doc}}{{/isEnum}}
+{{/model}}{{/models}}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/oneof_model.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/oneof_model.mustache
new file mode 100644
index 00000000000..83c841f5600
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/oneof_model.mustache
@@ -0,0 +1,3 @@
+{{#-first}}
+typealias {{classname}} = Any
+{{/-first}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/pathParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/pathParams.mustache
new file mode 100644
index 00000000000..7839f91302b
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/pathParams.mustache
@@ -0,0 +1 @@
+{{#isPathParam}}@PathParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}{{#useSwaggerAnnotations}}{{#description}} @ApiParam("{{.}}"){{/description}}{{/useSwaggerAnnotations}} {{paramName}}: {{{dataType}}}{{/isPathParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/queryParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/queryParams.mustache
new file mode 100644
index 00000000000..91a0dfdb664
--- /dev/null
+++ b/modules/openapi-generator/src/main/resources/kotlin-server/libraries/jaxrs-spec/queryParams.mustache
@@ -0,0 +1 @@
+{{#isQueryParam}}@QueryParam("{{baseName}}"){{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}{{^isContainer}}{{#defaultValue}} @DefaultValue("{{{.}}}"){{/defaultValue}}{{/isContainer}} {{#useSwaggerAnnotations}}{{#description}} @ApiParam("{{.}}"){{/description}}{{/useSwaggerAnnotations}}  {{paramName}}: {{{dataType}}}{{^required}}?{{/required}}{{/isQueryParam}}
\ No newline at end of file
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator-ignore b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator-ignore
new file mode 100644
index 00000000000..7484ee590a3
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator-ignore
@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/FILES b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/FILES
new file mode 100644
index 00000000000..8311b1e0d0a
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/FILES
@@ -0,0 +1,13 @@
+README.md
+build.gradle
+gradle.properties
+settings.gradle
+src/main/kotlin/org/openapitools/server/apis/PetApi.kt
+src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
+src/main/kotlin/org/openapitools/server/apis/UserApi.kt
+src/main/kotlin/org/openapitools/server/models/Category.kt
+src/main/kotlin/org/openapitools/server/models/ModelApiResponse.kt
+src/main/kotlin/org/openapitools/server/models/Order.kt
+src/main/kotlin/org/openapitools/server/models/Pet.kt
+src/main/kotlin/org/openapitools/server/models/Tag.kt
+src/main/kotlin/org/openapitools/server/models/User.kt
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/VERSION b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/VERSION
new file mode 100644
index 00000000000..0984c4c1ad2
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/.openapi-generator/VERSION
@@ -0,0 +1 @@
+5.4.0-SNAPSHOT
\ No newline at end of file
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/README.md b/samples/server/petstore/kotlin-server/jaxrs-spec/README.md
new file mode 100644
index 00000000000..d5e7ab18e68
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/README.md
@@ -0,0 +1,89 @@
+# org.openapitools.server - Kotlin Server library for OpenAPI Petstore
+
+## Requires
+
+* Kotlin 1.4.31
+* Gradle 6.8.2
+
+## Build
+
+First, create the gradle wrapper script:
+
+```
+gradle wrapper
+```
+
+Then, run:
+
+```
+./gradlew check assemble
+```
+
+This runs all tests and packages the library.
+
+## Features/Implementation Notes
+
+* Supports JSON inputs/outputs, File inputs, and Form inputs.
+* Supports collection formats for query parameters: csv, tsv, ssv, pipes.
+* Some Kotlin and Java types are fully qualified to avoid conflicts with types defined in OpenAPI definitions.
+
+<a name="documentation-for-api-endpoints"></a>
+## Documentation for API Endpoints
+
+All URIs are relative to *http://petstore.swagger.io/v2*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*PetApi* | [**addPet**](docs/PetApi.md#addpet) | **POST** /pet | Add a new pet to the store
+*PetApi* | [**deletePet**](docs/PetApi.md#deletepet) | **DELETE** /pet/{petId} | Deletes a pet
+*PetApi* | [**findPetsByStatus**](docs/PetApi.md#findpetsbystatus) | **GET** /pet/findByStatus | Finds Pets by status
+*PetApi* | [**findPetsByTags**](docs/PetApi.md#findpetsbytags) | **GET** /pet/findByTags | Finds Pets by tags
+*PetApi* | [**getPetById**](docs/PetApi.md#getpetbyid) | **GET** /pet/{petId} | Find pet by ID
+*PetApi* | [**updatePet**](docs/PetApi.md#updatepet) | **PUT** /pet | Update an existing pet
+*PetApi* | [**updatePetWithForm**](docs/PetApi.md#updatepetwithform) | **POST** /pet/{petId} | Updates a pet in the store with form data
+*PetApi* | [**uploadFile**](docs/PetApi.md#uploadfile) | **POST** /pet/{petId}/uploadImage | uploads an image
+*StoreApi* | [**deleteOrder**](docs/StoreApi.md#deleteorder) | **DELETE** /store/order/{orderId} | Delete purchase order by ID
+*StoreApi* | [**getInventory**](docs/StoreApi.md#getinventory) | **GET** /store/inventory | Returns pet inventories by status
+*StoreApi* | [**getOrderById**](docs/StoreApi.md#getorderbyid) | **GET** /store/order/{orderId} | Find purchase order by ID
+*StoreApi* | [**placeOrder**](docs/StoreApi.md#placeorder) | **POST** /store/order | Place an order for a pet
+*UserApi* | [**createUser**](docs/UserApi.md#createuser) | **POST** /user | Create user
+*UserApi* | [**createUsersWithArrayInput**](docs/UserApi.md#createuserswitharrayinput) | **POST** /user/createWithArray | Creates list of users with given input array
+*UserApi* | [**createUsersWithListInput**](docs/UserApi.md#createuserswithlistinput) | **POST** /user/createWithList | Creates list of users with given input array
+*UserApi* | [**deleteUser**](docs/UserApi.md#deleteuser) | **DELETE** /user/{username} | Delete user
+*UserApi* | [**getUserByName**](docs/UserApi.md#getuserbyname) | **GET** /user/{username} | Get user by user name
+*UserApi* | [**loginUser**](docs/UserApi.md#loginuser) | **GET** /user/login | Logs user into the system
+*UserApi* | [**logoutUser**](docs/UserApi.md#logoutuser) | **GET** /user/logout | Logs out current logged in user session
+*UserApi* | [**updateUser**](docs/UserApi.md#updateuser) | **PUT** /user/{username} | Updated user
+
+
+<a name="documentation-for-models"></a>
+## Documentation for Models
+
+ - [org.openapitools.server.models.Category](docs/Category.md)
+ - [org.openapitools.server.models.ModelApiResponse](docs/ModelApiResponse.md)
+ - [org.openapitools.server.models.Order](docs/Order.md)
+ - [org.openapitools.server.models.Pet](docs/Pet.md)
+ - [org.openapitools.server.models.Tag](docs/Tag.md)
+ - [org.openapitools.server.models.User](docs/User.md)
+
+
+<a name="documentation-for-authorization"></a>
+## Documentation for Authorization
+
+<a name="api_key"></a>
+### api_key
+
+- **Type**: API key
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
+<a name="petstore_auth"></a>
+### petstore_auth
+
+- **Type**: OAuth
+- **Flow**: implicit
+- **Authorization URL**: http://petstore.swagger.io/api/oauth/dialog
+- **Scopes**: 
+  - write:pets: modify pets in your account
+  - read:pets: read your pets
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/build.gradle b/samples/server/petstore/kotlin-server/jaxrs-spec/build.gradle
new file mode 100644
index 00000000000..b85cf730367
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/build.gradle
@@ -0,0 +1,51 @@
+group "org.openapitools"
+version "1.0.0"
+
+wrapper {
+    gradleVersion = "6.9"
+    distributionUrl = "https://services.gradle.org/distributions/gradle-$gradleVersion-all.zip"
+}
+
+buildscript {
+    ext.kotlin_version = "1.4.32"
+    ext.jakarta_ws_rs_version = "2.1.6"
+    ext.swagger_annotations_version = "1.5.3"
+    ext.jakarta_annotations_version = "1.3.5"
+    ext.jackson_version = "2.9.9"
+    repositories {
+        maven { url "https://repo1.maven.org/maven2" }
+        maven { url "https://plugins.gradle.org/m2/" }
+    }
+    dependencies {
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version")
+    }
+}
+
+apply plugin: "java"
+apply plugin: "kotlin"
+apply plugin: "application"
+
+sourceCompatibility = 1.8
+
+compileKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+repositories {
+    maven { setUrl("https://repo1.maven.org/maven2") }
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version")
+    implementation("ch.qos.logback:logback-classic:1.2.1")
+    implementation("jakarta.ws.rs:jakarta.ws.rs-api:$jakarta_ws_rs_version")
+    implementation("jakarta.annotation:jakarta.annotation-api:$jakarta_annotations_version")
+    implementation("io.swagger:swagger-annotations:$swagger_annotations_version")
+    implementation("com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:$jackson_version")
+    implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version")
+    testImplementation("junit:junit:4.13.2")
+}
\ No newline at end of file
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/gradle.properties b/samples/server/petstore/kotlin-server/jaxrs-spec/gradle.properties
new file mode 100644
index 00000000000..5f1ed7bbe02
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/gradle.properties
@@ -0,0 +1 @@
+org.gradle.caching=true
\ No newline at end of file
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/settings.gradle b/samples/server/petstore/kotlin-server/jaxrs-spec/settings.gradle
new file mode 100644
index 00000000000..a09a58efab1
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'kotlin-server'
\ No newline at end of file
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/PetApi.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
new file mode 100644
index 00000000000..eb94d6065e6
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
@@ -0,0 +1,66 @@
+package org.openapitools.server.apis;
+
+import org.openapitools.server.models.ModelApiResponse
+import org.openapitools.server.models.Pet
+
+import javax.ws.rs.*
+import javax.ws.rs.core.Response
+
+
+import java.io.InputStream
+import java.util.Map
+import java.util.List
+
+
+
+@Path("/")
+@javax.annotation.Generated(value = arrayOf("org.openapitools.codegen.languages.KotlinServerCodegen"))class PetApi {
+
+    @POST
+    @Consumes("application/json", "application/xml")
+    suspend fun addPet( body: Pet): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @DELETE
+    suspend fun deletePet(@PathParam("petId") petId: kotlin.Long,@HeaderParam("api_key")   apiKey: kotlin.String?): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun findPetsByStatus(@QueryParam("status")   status: kotlin.collections.List<kotlin.String>): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun findPetsByTags(@QueryParam("tags")   tags: kotlin.collections.List<kotlin.String>): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun getPetById(@PathParam("petId") petId: kotlin.Long): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @PUT
+    @Consumes("application/json", "application/xml")
+    suspend fun updatePet( body: Pet): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @POST
+    @Consumes("application/x-www-form-urlencoded")
+    suspend fun updatePetWithForm(@PathParam("petId") petId: kotlin.Long,@FormParam(value = "name") name: kotlin.String?,@FormParam(value = "status") status: kotlin.String?): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @POST
+    @Consumes("multipart/form-data")
+    @Produces("application/json")
+    suspend fun uploadFile(@PathParam("petId") petId: kotlin.Long,@FormParam(value = "additionalMetadata") additionalMetadata: kotlin.String?, @FormParam(value = "file") fileInputStream: InputStream?): Response {
+        return Response.ok().entity("magic!").build();
+    }
+}
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
new file mode 100644
index 00000000000..f297a11661d
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/StoreApi.kt
@@ -0,0 +1,40 @@
+package org.openapitools.server.apis;
+
+import org.openapitools.server.models.Order
+
+import javax.ws.rs.*
+import javax.ws.rs.core.Response
+
+
+import java.io.InputStream
+import java.util.Map
+import java.util.List
+
+
+
+@Path("/")
+@javax.annotation.Generated(value = arrayOf("org.openapitools.codegen.languages.KotlinServerCodegen"))class StoreApi {
+
+    @DELETE
+    suspend fun deleteOrder(@PathParam("orderId") orderId: kotlin.String): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/json")
+    suspend fun getInventory(): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun getOrderById(@PathParam("orderId") orderId: kotlin.Long): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @POST
+    @Produces("application/xml", "application/json")
+    suspend fun placeOrder( body: Order): Response {
+        return Response.ok().entity("magic!").build();
+    }
+}
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/UserApi.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/UserApi.kt
new file mode 100644
index 00000000000..f824ebc217a
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/apis/UserApi.kt
@@ -0,0 +1,59 @@
+package org.openapitools.server.apis;
+
+import org.openapitools.server.models.User
+
+import javax.ws.rs.*
+import javax.ws.rs.core.Response
+
+
+import java.io.InputStream
+import java.util.Map
+import java.util.List
+
+
+
+@Path("/")
+@javax.annotation.Generated(value = arrayOf("org.openapitools.codegen.languages.KotlinServerCodegen"))class UserApi {
+
+    @POST
+    suspend fun createUser( body: User): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @POST
+    suspend fun createUsersWithArrayInput( body: kotlin.collections.List<User>): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @POST
+    suspend fun createUsersWithListInput( body: kotlin.collections.List<User>): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @DELETE
+    suspend fun deleteUser(@PathParam("username") username: kotlin.String): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun getUserByName(@PathParam("username") username: kotlin.String): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    @Produces("application/xml", "application/json")
+    suspend fun loginUser(@QueryParam("username")   username: kotlin.String,@QueryParam("password")   password: kotlin.String): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @GET
+    suspend fun logoutUser(): Response {
+        return Response.ok().entity("magic!").build();
+    }
+
+    @PUT
+    suspend fun updateUser(@PathParam("username") username: kotlin.String, body: User): Response {
+        return Response.ok().entity("magic!").build();
+    }
+}
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ApiResponse.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ApiResponse.kt
new file mode 100644
index 00000000000..974c9589a7f
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ApiResponse.kt
@@ -0,0 +1,33 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * Describes the result of uploading an image resource
+ *
+ * @param code 
+ * @param type 
+ * @param message 
+ */
+
+
+data class ApiResponse (
+
+    val code: kotlin.Int? = null,
+
+    val type: kotlin.String? = null,
+
+    val message: kotlin.String? = null
+
+)
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Category.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Category.kt
new file mode 100644
index 00000000000..9a39acd8aea
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Category.kt
@@ -0,0 +1,34 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * A category for a pet
+ *
+ * @param id 
+ * @param name 
+ */
+
+
+data class Category (
+
+
+    @JsonProperty("id")
+    val id: kotlin.Long? = null,
+
+
+    @JsonProperty("name")
+    val name: kotlin.String? = null
+
+)
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ModelApiResponse.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ModelApiResponse.kt
new file mode 100644
index 00000000000..531f364e2f7
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/ModelApiResponse.kt
@@ -0,0 +1,39 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * Describes the result of uploading an image resource
+ *
+ * @param code 
+ * @param type 
+ * @param message 
+ */
+
+
+data class ModelApiResponse (
+
+
+    @JsonProperty("code")
+    val code: kotlin.Int? = null,
+
+
+    @JsonProperty("type")
+    val type: kotlin.String? = null,
+
+
+    @JsonProperty("message")
+    val message: kotlin.String? = null
+
+)
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Order.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Order.kt
new file mode 100644
index 00000000000..d4a39a2c2bb
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Order.kt
@@ -0,0 +1,67 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * An order for a pets from the pet store
+ *
+ * @param id 
+ * @param petId 
+ * @param quantity 
+ * @param shipDate 
+ * @param status Order Status
+ * @param complete 
+ */
+
+
+data class Order (
+
+
+    @JsonProperty("id")
+    val id: kotlin.Long? = null,
+
+
+    @JsonProperty("petId")
+    val petId: kotlin.Long? = null,
+
+
+    @JsonProperty("quantity")
+    val quantity: kotlin.Int? = null,
+
+
+    @JsonProperty("shipDate")
+    val shipDate: java.time.OffsetDateTime? = null,
+
+    /* Order Status */
+
+    @JsonProperty("status")
+    val status: Order.Status? = null,
+
+
+    @JsonProperty("complete")
+    val complete: kotlin.Boolean? = false
+
+) {
+
+    /**
+     * Order Status
+     *
+     * Values: placed,approved,delivered
+     */
+    enum class Status(val value: kotlin.String) {
+        @JsonProperty(value = "placed") placed("placed"),
+        @JsonProperty(value = "approved") approved("approved"),
+        @JsonProperty(value = "delivered") delivered("delivered");
+    }
+}
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Pet.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Pet.kt
new file mode 100644
index 00000000000..826d87a7303
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Pet.kt
@@ -0,0 +1,69 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import org.openapitools.server.models.Category
+import org.openapitools.server.models.Tag
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * A pet for sale in the pet store
+ *
+ * @param name 
+ * @param photoUrls 
+ * @param id 
+ * @param category 
+ * @param tags 
+ * @param status pet status in the store
+ */
+
+
+data class Pet (
+
+
+    @JsonProperty("name")
+    val name: kotlin.String,
+
+
+    @JsonProperty("photoUrls")
+    val photoUrls: kotlin.collections.List<kotlin.String>,
+
+
+    @JsonProperty("id")
+    val id: kotlin.Long? = null,
+
+
+    @JsonProperty("category")
+    val category: Category? = null,
+
+
+    @JsonProperty("tags")
+    val tags: kotlin.collections.List<Tag>? = null,
+
+    /* pet status in the store */
+
+    @JsonProperty("status")
+    val status: Pet.Status? = null
+
+) {
+
+    /**
+     * pet status in the store
+     *
+     * Values: available,pending,sold
+     */
+    enum class Status(val value: kotlin.String) {
+        @JsonProperty(value = "available") available("available"),
+        @JsonProperty(value = "pending") pending("pending"),
+        @JsonProperty(value = "sold") sold("sold");
+    }
+}
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Tag.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Tag.kt
new file mode 100644
index 00000000000..ded0e6fab03
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/Tag.kt
@@ -0,0 +1,34 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * A tag for a pet
+ *
+ * @param id 
+ * @param name 
+ */
+
+
+data class Tag (
+
+
+    @JsonProperty("id")
+    val id: kotlin.Long? = null,
+
+
+    @JsonProperty("name")
+    val name: kotlin.String? = null
+
+)
+
diff --git a/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/User.kt b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/User.kt
new file mode 100644
index 00000000000..4d0dcec6691
--- /dev/null
+++ b/samples/server/petstore/kotlin-server/jaxrs-spec/src/main/kotlin/org/openapitools/server/models/User.kt
@@ -0,0 +1,65 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+*/
+package org.openapitools.server.models
+
+import com.fasterxml.jackson.annotation.JsonProperty
+/**
+ * A User who is purchasing from the pet store
+ *
+ * @param id 
+ * @param username 
+ * @param firstName 
+ * @param lastName 
+ * @param email 
+ * @param password 
+ * @param phone 
+ * @param userStatus User Status
+ */
+
+
+data class User (
+
+
+    @JsonProperty("id")
+    val id: kotlin.Long? = null,
+
+
+    @JsonProperty("username")
+    val username: kotlin.String? = null,
+
+
+    @JsonProperty("firstName")
+    val firstName: kotlin.String? = null,
+
+
+    @JsonProperty("lastName")
+    val lastName: kotlin.String? = null,
+
+
+    @JsonProperty("email")
+    val email: kotlin.String? = null,
+
+
+    @JsonProperty("password")
+    val password: kotlin.String? = null,
+
+
+    @JsonProperty("phone")
+    val phone: kotlin.String? = null,
+
+    /* User Status */
+
+    @JsonProperty("userStatus")
+    val userStatus: kotlin.Int? = null
+
+)
+