[Java RESTEasy client] added filename directive for Java RESTEasy file uploads (#17367) (#17435)

* added filename directive for Java RESTEasy file uploads (#17367)

* regenerated samples

bin/configs/java-resteasy-echo.yaml

@@ -0,0 +1,8 @@
+generatorName: java
+outputDir: samples/client/petstore/java/resteasy-echo
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-echo.yaml
+templateDir: modules/openapi-generator/src/main/resources/Java
+additionalProperties:
+  artifactId: petstore-resteasy-echo
+  hideGenerationTimestamp: "true"
+  library: resteasy

modules/openapi-generator/src/main/resources/Java/libraries/resteasy/ApiClient.mustache

@@ -498,7 +498,7 @@ public class ApiClient{{#jsr310}} extends JavaTimeFormatter{{/jsr310}} {
         if (param.getValue() instanceof File) {
           File file = (File) param.getValue();
           try {
-            multipart.addFormData(param.getKey(),new FileInputStream(file),MediaType.APPLICATION_OCTET_STREAM_TYPE);
+            multipart.addFormData(param.getKey(),new FileInputStream(file),MediaType.APPLICATION_OCTET_STREAM_TYPE, file.getName());
           } catch (FileNotFoundException e) {
             throw new ApiException("Could not serialize multipart/form-data "+e.getMessage());
           }

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/JavaClientCodegenTest.java

@@ -64,7 +64,9 @@ import java.util.function.Predicate;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
+import junit.framework.AssertionFailedError;
 import lombok.SneakyThrows;
 import org.openapitools.codegen.ClientOptInput;
 import org.openapitools.codegen.CodegenConstants;
@@ -764,6 +766,50 @@ public class JavaClientCodegenTest {
         files.forEach(File::deleteOnExit);
     }
 
+    @Test
+    public void testMultiPartSpecifiesFileName_Issue17367() throws IOException {
+        File output = Files.createTempDirectory("test").toFile();
+        output.deleteOnExit();
+
+        final CodegenConfigurator configurator = new CodegenConfigurator()
+                .setGeneratorName("java")
+                .setLibrary(JavaClientCodegen.RESTEASY)
+                .setValidateSpec(false)
+                .setInputSpec("src/test/resources/3_0/issue-17367.yaml")
+                .setOutputDir(output.getAbsolutePath().replace("\\", "/"));
+
+        final ClientOptInput clientOptInput = configurator.toClientOptInput();
+
+        DefaultGenerator generator = new DefaultGenerator();
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODELS, "true");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_TESTS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.MODEL_DOCS, "false");
+        generator.setGeneratorPropertyDefault(CodegenConstants.APIS, "true");
+        generator.setGeneratorPropertyDefault(CodegenConstants.SUPPORTING_FILES, "true");
+        generator.setGenerateMetadata(false);
+        List<File> files = generator.opts(clientOptInput).generate();
+        try {
+            validateJavaSourceFiles(files);
+            File apiClient = files.stream()
+                    .filter(f -> f.getName().equals("ApiClient.java"))
+                    .findFirst()
+                    .orElseThrow(() -> new AssertionFailedError(
+                            "ApiClient.java not found"));
+
+            Stream<String> contents = Arrays.stream(Files.readString(apiClient.toPath(),
+                    StandardCharsets.UTF_8).split("\n"));
+
+            // https://docs.jboss.org/resteasy/docs/6.2.5.Final/javadocs/org/jboss/resteasy/plugins/providers/multipart/MultipartFormDataOutput.html#addFormData(java.lang.String,java.lang.Object,jakarta.ws.rs.core.MediaType,java.lang.String)
+            assertTrue(contents.anyMatch(l -> l.matches(
+                    ".*multipart\\.addFormData\\(param.getKey\\(\\),\\s*" +
+                    "new\\s+FileInputStream\\(file\\),\\s*" +
+                    "MediaType\\.APPLICATION_OCTET_STREAM_TYPE,\\s*" +
+                    "file.getName\\(\\)\\);.*")));
+        } finally {
+            files.forEach(File::deleteOnExit);
+        }
+    }
+
     @Test
     public void testAuthorizationsMethodsSizeWhenFiltered() {
         final OpenAPI openAPI = TestUtils.parseFlattenSpec("src/test/resources/3_0/issue4584.yaml");

modules/openapi-generator/src/test/resources/3_0/issue-17367.yaml

@@ -0,0 +1,24 @@
+openapi: 3.0.0
+info:
+  version: 1.0.0
+  title: Foo API
+servers:
+  - url: http://127.0.0.1:8080/{basePath}
+    variables:
+      basePath:
+        default: v1
+paths:
+  /foo:
+    post:
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              type: object
+              properties:
+                bar:
+                  type: string
+                  format: binary
+      responses:
+        '200':
+          description: OK

samples/client/petstore/java/resteasy-echo/.github/workflows/maven.yml

@@ -0,0 +1,30 @@
+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+#
+# This file is auto-generated by OpenAPI Generator (https://openapi-generator.tech)
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  build:
+    name: Build OpenAPI Petstore
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [ '8' ]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK
+      uses: actions/setup-java@v2
+      with:
+        java-version: ${{ matrix.java }}
+        distribution: 'temurin'
+        cache: maven
+    - name: Build with Maven
+      run: mvn -B package --no-transfer-progress --file pom.xml

samples/client/petstore/java/resteasy-echo/.gitignore

@@ -0,0 +1,21 @@
+*.class
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# exclude jar for gradle wrapper
+!gradle/wrapper/*.jar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# build files
+**/target
+target
+.gradle
+build

samples/client/petstore/java/resteasy-echo/.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

samples/client/petstore/java/resteasy-echo/.openapi-generator/FILES

@@ -0,0 +1,146 @@
+.github/workflows/maven.yml
+.gitignore
+.travis.yml
+README.md
+api/openapi.yaml
+build.gradle
+build.sbt
+docs/AdditionalPropertiesClass.md
+docs/AllOfWithSingleRef.md
+docs/Animal.md
+docs/AnotherFakeApi.md
+docs/ArrayOfArrayOfNumberOnly.md
+docs/ArrayOfNumberOnly.md
+docs/ArrayTest.md
+docs/Capitalization.md
+docs/Cat.md
+docs/Category.md
+docs/ChildWithNullable.md
+docs/ClassModel.md
+docs/Client.md
+docs/DefaultApi.md
+docs/DeprecatedObject.md
+docs/Dog.md
+docs/EnumArrays.md
+docs/EnumClass.md
+docs/EnumTest.md
+docs/FakeApi.md
+docs/FakeBigDecimalMap200Response.md
+docs/FakeClassnameTags123Api.md
+docs/FileSchemaTestClass.md
+docs/Foo.md
+docs/FooGetDefaultResponse.md
+docs/FormatTest.md
+docs/HasOnlyReadOnly.md
+docs/HealthCheckResult.md
+docs/MapTest.md
+docs/MixedPropertiesAndAdditionalPropertiesClass.md
+docs/Model200Response.md
+docs/ModelApiResponse.md
+docs/ModelFile.md
+docs/ModelList.md
+docs/ModelReturn.md
+docs/Name.md
+docs/NullableClass.md
+docs/NumberOnly.md
+docs/ObjectWithDeprecatedFields.md
+docs/Order.md
+docs/OuterComposite.md
+docs/OuterEnum.md
+docs/OuterEnumDefaultValue.md
+docs/OuterEnumInteger.md
+docs/OuterEnumIntegerDefaultValue.md
+docs/OuterObjectWithEnumProperty.md
+docs/ParentWithNullable.md
+docs/Pet.md
+docs/PetApi.md
+docs/ReadOnlyFirst.md
+docs/SingleRefType.md
+docs/SpecialModelName.md
+docs/StoreApi.md
+docs/Tag.md
+docs/TestInlineFreeformAdditionalPropertiesRequest.md
+docs/User.md
+docs/UserApi.md
+git_push.sh
+gradle.properties
+gradle/wrapper/gradle-wrapper.jar
+gradle/wrapper/gradle-wrapper.properties
+gradlew
+gradlew.bat
+pom.xml
+settings.gradle
+src/main/AndroidManifest.xml
+src/main/java/org/openapitools/client/ApiClient.java
+src/main/java/org/openapitools/client/ApiException.java
+src/main/java/org/openapitools/client/Configuration.java
+src/main/java/org/openapitools/client/JSON.java
+src/main/java/org/openapitools/client/JavaTimeFormatter.java
+src/main/java/org/openapitools/client/Pair.java
+src/main/java/org/openapitools/client/RFC3339DateFormat.java
+src/main/java/org/openapitools/client/ServerConfiguration.java
+src/main/java/org/openapitools/client/ServerVariable.java
+src/main/java/org/openapitools/client/StringUtil.java
+src/main/java/org/openapitools/client/api/AnotherFakeApi.java
+src/main/java/org/openapitools/client/api/DefaultApi.java
+src/main/java/org/openapitools/client/api/FakeApi.java
+src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java
+src/main/java/org/openapitools/client/api/PetApi.java
+src/main/java/org/openapitools/client/api/StoreApi.java
+src/main/java/org/openapitools/client/api/UserApi.java
+src/main/java/org/openapitools/client/auth/ApiKeyAuth.java
+src/main/java/org/openapitools/client/auth/Authentication.java
+src/main/java/org/openapitools/client/auth/HttpBasicAuth.java
+src/main/java/org/openapitools/client/auth/HttpBearerAuth.java
+src/main/java/org/openapitools/client/auth/OAuth.java
+src/main/java/org/openapitools/client/auth/OAuthFlow.java
+src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
+src/main/java/org/openapitools/client/model/AllOfWithSingleRef.java
+src/main/java/org/openapitools/client/model/Animal.java
+src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java
+src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java
+src/main/java/org/openapitools/client/model/ArrayTest.java
+src/main/java/org/openapitools/client/model/Capitalization.java
+src/main/java/org/openapitools/client/model/Cat.java
+src/main/java/org/openapitools/client/model/Category.java
+src/main/java/org/openapitools/client/model/ChildWithNullable.java
+src/main/java/org/openapitools/client/model/ClassModel.java
+src/main/java/org/openapitools/client/model/Client.java
+src/main/java/org/openapitools/client/model/DeprecatedObject.java
+src/main/java/org/openapitools/client/model/Dog.java
+src/main/java/org/openapitools/client/model/EnumArrays.java
+src/main/java/org/openapitools/client/model/EnumClass.java
+src/main/java/org/openapitools/client/model/EnumTest.java
+src/main/java/org/openapitools/client/model/FakeBigDecimalMap200Response.java
+src/main/java/org/openapitools/client/model/FileSchemaTestClass.java
+src/main/java/org/openapitools/client/model/Foo.java
+src/main/java/org/openapitools/client/model/FooGetDefaultResponse.java
+src/main/java/org/openapitools/client/model/FormatTest.java
+src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java
+src/main/java/org/openapitools/client/model/HealthCheckResult.java
+src/main/java/org/openapitools/client/model/MapTest.java
+src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java
+src/main/java/org/openapitools/client/model/Model200Response.java
+src/main/java/org/openapitools/client/model/ModelApiResponse.java
+src/main/java/org/openapitools/client/model/ModelFile.java
+src/main/java/org/openapitools/client/model/ModelList.java
+src/main/java/org/openapitools/client/model/ModelReturn.java
+src/main/java/org/openapitools/client/model/Name.java
+src/main/java/org/openapitools/client/model/NullableClass.java
+src/main/java/org/openapitools/client/model/NumberOnly.java
+src/main/java/org/openapitools/client/model/ObjectWithDeprecatedFields.java
+src/main/java/org/openapitools/client/model/Order.java
+src/main/java/org/openapitools/client/model/OuterComposite.java
+src/main/java/org/openapitools/client/model/OuterEnum.java
+src/main/java/org/openapitools/client/model/OuterEnumDefaultValue.java
+src/main/java/org/openapitools/client/model/OuterEnumInteger.java
+src/main/java/org/openapitools/client/model/OuterEnumIntegerDefaultValue.java
+src/main/java/org/openapitools/client/model/OuterObjectWithEnumProperty.java
+src/main/java/org/openapitools/client/model/ParentWithNullable.java
+src/main/java/org/openapitools/client/model/Pet.java
+src/main/java/org/openapitools/client/model/ReadOnlyFirst.java
+src/main/java/org/openapitools/client/model/SingleRefType.java
+src/main/java/org/openapitools/client/model/SpecialModelName.java
+src/main/java/org/openapitools/client/model/Tag.java
+src/main/java/org/openapitools/client/model/TestInlineFreeformAdditionalPropertiesRequest.java
+src/main/java/org/openapitools/client/model/User.java

samples/client/petstore/java/resteasy-echo/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.2.0-SNAPSHOT

samples/client/petstore/java/resteasy-echo/.travis.yml

@@ -0,0 +1,22 @@
+#
+# Generated by OpenAPI Generator: https://openapi-generator.tech
+#
+# Ref: https://docs.travis-ci.com/user/languages/java/
+#
+language: java
+jdk:
+  - openjdk12
+  - openjdk11
+  - openjdk10
+  - openjdk9
+  - openjdk8
+before_install:
+  # ensure gradlew has proper permission
+  - chmod a+x ./gradlew
+script:
+  # test using maven
+  #- mvn test
+  # test using gradle
+  - gradle test
+  # test using sbt
+  # - sbt test

samples/client/petstore/java/resteasy-echo/README.md

@@ -0,0 +1,274 @@
+# petstore-resteasy-echo
+
+OpenAPI Petstore
+
+- API version: 1.0.0
+
+This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+
+*Automatically generated by the [OpenAPI Generator](https://openapi-generator.tech)*
+
+## Requirements
+
+Building the API client library requires:
+
+1. Java 1.8+
+2. Maven/Gradle
+
+## Installation
+
+To install the API client library to your local Maven repository, simply execute:
+
+```shell
+mvn clean install
+```
+
+To deploy it to a remote Maven repository instead, configure the settings of the repository and execute:
+
+```shell
+mvn clean deploy
+```
+
+Refer to the [OSSRH Guide](http://central.sonatype.org/pages/ossrh-guide.html) for more information.
+
+### Maven users
+
+Add this dependency to your project's POM:
+
+```xml
+<dependency>
+  <groupId>org.openapitools</groupId>
+  <artifactId>petstore-resteasy-echo</artifactId>
+  <version>1.0.0</version>
+  <scope>compile</scope>
+</dependency>
+```
+
+### Gradle users
+
+Add this dependency to your project's build file:
+
+```groovy
+  repositories {
+    mavenCentral()     // Needed if the 'petstore-resteasy-echo' jar has been published to maven central.
+    mavenLocal()       // Needed if the 'petstore-resteasy-echo' jar has been published to the local maven repo.
+  }
+
+  dependencies {
+     implementation "org.openapitools:petstore-resteasy-echo:1.0.0"
+  }
+```
+
+### Others
+
+At first generate the JAR by executing:
+
+```shell
+mvn clean package
+```
+
+Then manually install the following JARs:
+
+- `target/petstore-resteasy-echo-1.0.0.jar`
+- `target/lib/*.jar`
+
+## Getting Started
+
+Please follow the [installation](#installation) instruction and execute the following Java code:
+
+```java
+
+import org.openapitools.client.*;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.model.*;
+import org.openapitools.client.api.AnotherFakeApi;
+
+public class AnotherFakeApiExample {
+
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
+        Client client = new Client(); // Client | client model
+        try {
+            Client result = apiInstance.call123testSpecialTags(client);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://localhost:3000*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*AnotherFakeApi* | [**call123testSpecialTags**](docs/AnotherFakeApi.md#call123testSpecialTags) | **PATCH** /another-fake/dummy | To test special tags
+*DefaultApi* | [**fooGet**](docs/DefaultApi.md#fooGet) | **GET** /foo | 
+*FakeApi* | [**fakeBigDecimalMap**](docs/FakeApi.md#fakeBigDecimalMap) | **GET** /fake/BigDecimalMap | 
+*FakeApi* | [**fakeHealthGet**](docs/FakeApi.md#fakeHealthGet) | **GET** /fake/health | Health check endpoint
+*FakeApi* | [**fakeHttpSignatureTest**](docs/FakeApi.md#fakeHttpSignatureTest) | **GET** /fake/http-signature-test | test http signature authentication
+*FakeApi* | [**fakeOuterBooleanSerialize**](docs/FakeApi.md#fakeOuterBooleanSerialize) | **POST** /fake/outer/boolean | 
+*FakeApi* | [**fakeOuterCompositeSerialize**](docs/FakeApi.md#fakeOuterCompositeSerialize) | **POST** /fake/outer/composite | 
+*FakeApi* | [**fakeOuterNumberSerialize**](docs/FakeApi.md#fakeOuterNumberSerialize) | **POST** /fake/outer/number | 
+*FakeApi* | [**fakeOuterStringSerialize**](docs/FakeApi.md#fakeOuterStringSerialize) | **POST** /fake/outer/string | 
+*FakeApi* | [**fakePropertyEnumIntegerSerialize**](docs/FakeApi.md#fakePropertyEnumIntegerSerialize) | **POST** /fake/property/enum-int | 
+*FakeApi* | [**testBodyWithBinary**](docs/FakeApi.md#testBodyWithBinary) | **PUT** /fake/body-with-binary | 
+*FakeApi* | [**testBodyWithFileSchema**](docs/FakeApi.md#testBodyWithFileSchema) | **PUT** /fake/body-with-file-schema | 
+*FakeApi* | [**testBodyWithQueryParams**](docs/FakeApi.md#testBodyWithQueryParams) | **PUT** /fake/body-with-query-params | 
+*FakeApi* | [**testClientModel**](docs/FakeApi.md#testClientModel) | **PATCH** /fake | To test \&quot;client\&quot; model
+*FakeApi* | [**testEndpointParameters**](docs/FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+*FakeApi* | [**testEnumParameters**](docs/FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters
+*FakeApi* | [**testGroupParameters**](docs/FakeApi.md#testGroupParameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional)
+*FakeApi* | [**testInlineAdditionalProperties**](docs/FakeApi.md#testInlineAdditionalProperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties
+*FakeApi* | [**testInlineFreeformAdditionalProperties**](docs/FakeApi.md#testInlineFreeformAdditionalProperties) | **POST** /fake/inline-freeform-additionalProperties | test inline free-form additionalProperties
+*FakeApi* | [**testJsonFormData**](docs/FakeApi.md#testJsonFormData) | **GET** /fake/jsonFormData | test json serialization of form data
+*FakeApi* | [**testNullable**](docs/FakeApi.md#testNullable) | **POST** /fake/nullable | test nullable parent property
+*FakeApi* | [**testQueryParameterCollectionFormat**](docs/FakeApi.md#testQueryParameterCollectionFormat) | **PUT** /fake/test-query-parameters | 
+*FakeClassnameTags123Api* | [**testClassname**](docs/FakeClassnameTags123Api.md#testClassname) | **PATCH** /fake_classname_test | To test class name in snake case
+*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
+*PetApi* | [**uploadFileWithRequiredFile**](docs/PetApi.md#uploadFileWithRequiredFile) | **POST** /fake/{petId}/uploadImageWithRequiredFile | uploads an image (required)
+*StoreApi* | [**deleteOrder**](docs/StoreApi.md#deleteOrder) | **DELETE** /store/order/{order_id} | 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/{order_id} | Find purchase order by ID
+*StoreApi* | [**placeOrder**](docs/StoreApi.md#placeOrder) | **POST** /store/order | Place an order for a pet
+*UserApi* | [**createUser**](docs/UserApi.md#createUser) | **POST** /user | Create user
+*UserApi* | [**createUsersWithArrayInput**](docs/UserApi.md#createUsersWithArrayInput) | **POST** /user/createWithArray | Creates list of users with given input array
+*UserApi* | [**createUsersWithListInput**](docs/UserApi.md#createUsersWithListInput) | **POST** /user/createWithList | Creates list of users with given input array
+*UserApi* | [**deleteUser**](docs/UserApi.md#deleteUser) | **DELETE** /user/{username} | Delete user
+*UserApi* | [**getUserByName**](docs/UserApi.md#getUserByName) | **GET** /user/{username} | Get user by user name
+*UserApi* | [**loginUser**](docs/UserApi.md#loginUser) | **GET** /user/login | Logs user into the system
+*UserApi* | [**logoutUser**](docs/UserApi.md#logoutUser) | **GET** /user/logout | Logs out current logged in user session
+*UserApi* | [**updateUser**](docs/UserApi.md#updateUser) | **PUT** /user/{username} | Updated user
+
+
+## Documentation for Models
+
+ - [AdditionalPropertiesClass](docs/AdditionalPropertiesClass.md)
+ - [AllOfWithSingleRef](docs/AllOfWithSingleRef.md)
+ - [Animal](docs/Animal.md)
+ - [ArrayOfArrayOfNumberOnly](docs/ArrayOfArrayOfNumberOnly.md)
+ - [ArrayOfNumberOnly](docs/ArrayOfNumberOnly.md)
+ - [ArrayTest](docs/ArrayTest.md)
+ - [Capitalization](docs/Capitalization.md)
+ - [Cat](docs/Cat.md)
+ - [Category](docs/Category.md)
+ - [ChildWithNullable](docs/ChildWithNullable.md)
+ - [ClassModel](docs/ClassModel.md)
+ - [Client](docs/Client.md)
+ - [DeprecatedObject](docs/DeprecatedObject.md)
+ - [Dog](docs/Dog.md)
+ - [EnumArrays](docs/EnumArrays.md)
+ - [EnumClass](docs/EnumClass.md)
+ - [EnumTest](docs/EnumTest.md)
+ - [FakeBigDecimalMap200Response](docs/FakeBigDecimalMap200Response.md)
+ - [FileSchemaTestClass](docs/FileSchemaTestClass.md)
+ - [Foo](docs/Foo.md)
+ - [FooGetDefaultResponse](docs/FooGetDefaultResponse.md)
+ - [FormatTest](docs/FormatTest.md)
+ - [HasOnlyReadOnly](docs/HasOnlyReadOnly.md)
+ - [HealthCheckResult](docs/HealthCheckResult.md)
+ - [MapTest](docs/MapTest.md)
+ - [MixedPropertiesAndAdditionalPropertiesClass](docs/MixedPropertiesAndAdditionalPropertiesClass.md)
+ - [Model200Response](docs/Model200Response.md)
+ - [ModelApiResponse](docs/ModelApiResponse.md)
+ - [ModelFile](docs/ModelFile.md)
+ - [ModelList](docs/ModelList.md)
+ - [ModelReturn](docs/ModelReturn.md)
+ - [Name](docs/Name.md)
+ - [NullableClass](docs/NullableClass.md)
+ - [NumberOnly](docs/NumberOnly.md)
+ - [ObjectWithDeprecatedFields](docs/ObjectWithDeprecatedFields.md)
+ - [Order](docs/Order.md)
+ - [OuterComposite](docs/OuterComposite.md)
+ - [OuterEnum](docs/OuterEnum.md)
+ - [OuterEnumDefaultValue](docs/OuterEnumDefaultValue.md)
+ - [OuterEnumInteger](docs/OuterEnumInteger.md)
+ - [OuterEnumIntegerDefaultValue](docs/OuterEnumIntegerDefaultValue.md)
+ - [OuterObjectWithEnumProperty](docs/OuterObjectWithEnumProperty.md)
+ - [ParentWithNullable](docs/ParentWithNullable.md)
+ - [Pet](docs/Pet.md)
+ - [ReadOnlyFirst](docs/ReadOnlyFirst.md)
+ - [SingleRefType](docs/SingleRefType.md)
+ - [SpecialModelName](docs/SpecialModelName.md)
+ - [Tag](docs/Tag.md)
+ - [TestInlineFreeformAdditionalPropertiesRequest](docs/TestInlineFreeformAdditionalPropertiesRequest.md)
+ - [User](docs/User.md)
+
+
+<a id="documentation-for-authorization"></a>
+## Documentation for Authorization
+
+
+Authentication schemes defined for the API:
+<a id="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
+
+<a id="api_key"></a>
+### api_key
+
+
+- **Type**: API key
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
+<a id="api_key_query"></a>
+### api_key_query
+
+
+- **Type**: API key
+- **API key parameter name**: api_key_query
+- **Location**: URL query string
+
+<a id="http_basic_test"></a>
+### http_basic_test
+
+
+- **Type**: HTTP basic authentication
+
+<a id="bearer_test"></a>
+### bearer_test
+
+
+- **Type**: HTTP Bearer Token authentication (JWT)
+
+<a id="http_signature_test"></a>
+### http_signature_test
+
+
+- **Type**: HTTP signature authentication
+
+
+## Recommendation
+
+It's recommended to create an instance of `ApiClient` per thread in a multithreaded environment to avoid any potential issues.
+
+## Author
+
+
+

samples/client/petstore/java/resteasy-echo/build.gradle

@@ -0,0 +1,124 @@
+apply plugin: 'idea'
+apply plugin: 'eclipse'
+
+group = 'org.openapitools'
+version = '1.0.0'
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.+'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+
+if(hasProperty('target') && target == 'android') {
+
+    apply plugin: 'com.android.library'
+    apply plugin: 'com.github.dcendents.android-maven'
+
+    android {
+        compileSdkVersion 23
+        buildToolsVersion '23.0.2'
+        defaultConfig {
+            minSdkVersion 14
+            targetSdkVersion 23
+        }
+        compileOptions {
+            sourceCompatibility JavaVersion.VERSION_1_8
+            targetCompatibility JavaVersion.VERSION_1_8
+        }
+
+        // Rename the aar correctly
+        libraryVariants.all { variant ->
+            variant.outputs.each { output ->
+                def outputFile = output.outputFile
+                if (outputFile != null && outputFile.name.endsWith('.aar')) {
+                    def fileName = "${project.name}-${variant.baseName}-${version}.aar"
+                    output.outputFile = new File(outputFile.parent, fileName)
+                }
+            }
+        }
+
+        dependencies {
+            provided "jakarta.annotation:jakarta.annotation-api:$jakarta_annotation_version"
+        }
+    }
+
+    afterEvaluate {
+        android.libraryVariants.all { variant ->
+            def task = project.tasks.create "jar${variant.name.capitalize()}", Jar
+            task.description = "Create jar artifact for ${variant.name}"
+            task.dependsOn variant.javaCompile
+            task.from variant.javaCompile.destinationDirectory
+            task.destinationDirectory = project.file("${project.buildDir}/outputs/jar")
+            task.archiveFileName = "${project.name}-${variant.baseName}-${version}.jar"
+            artifacts.add('archives', task);
+        }
+    }
+
+    task sourcesJar(type: Jar) {
+        from android.sourceSets.main.java.srcDirs
+        classifier = 'sources'
+    }
+
+    artifacts {
+        archives sourcesJar
+    }
+
+} else {
+
+    apply plugin: 'java'
+    apply plugin: 'maven-publish'
+
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+
+    publishing {
+        publications {
+            maven(MavenPublication) {
+               artifactId = 'petstore-resteasy-echo'
+               from components.java
+            }
+        }
+    }
+
+    task execute(type:JavaExec) {
+       main = System.getProperty('mainClass')
+       classpath = sourceSets.main.runtimeClasspath
+    }
+}
+
+ext {
+    swagger_annotations_version = "1.6.3"
+    jackson_version = "2.13.4"
+    jackson_databind_version = "2.13.4.2"
+    jackson_databind_nullable_version = "0.2.6"
+    jakarta_annotation_version = "1.3.5"
+    threetenbp_version = "2.9.10"
+    resteasy_version = "4.5.11.Final"
+    junit_version = "4.13"
+}
+
+dependencies {
+    implementation "io.swagger:swagger-annotations:$swagger_annotations_version"
+    implementation "com.google.code.findbugs:jsr305:3.0.2"
+    implementation "org.jboss.resteasy:resteasy-client:$resteasy_version"
+    implementation "org.jboss.resteasy:resteasy-multipart-provider:$resteasy_version"
+    implementation "org.jboss.resteasy:resteasy-jackson2-provider:$resteasy_version"
+    implementation "com.fasterxml.jackson.core:jackson-core:$jackson_version"
+    implementation "com.fasterxml.jackson.core:jackson-annotations:$jackson_version"
+    implementation "com.fasterxml.jackson.core:jackson-databind:$jackson_databind_version"
+    implementation "com.github.joschi.jackson:jackson-datatype-threetenbp:$threetenbp_version"
+    implementation "org.openapitools:jackson-databind-nullable:$jackson_databind_nullable_version"
+    implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version"
+    implementation "jakarta.annotation:jakarta.annotation-api:$jakarta_annotation_version"
+    testImplementation "junit:junit:$junit_version"
+}

samples/client/petstore/java/resteasy-echo/build.sbt

@@ -0,0 +1,25 @@
+lazy val root = (project in file(".")).
+  settings(
+    organization := "org.openapitools",
+    name := "petstore-resteasy-echo",
+    version := "1.0.0",
+    scalaVersion := "2.11.4",
+    scalacOptions ++= Seq("-feature"),
+    javacOptions in compile ++= Seq("-Xlint:deprecation"),
+    publishArtifact in (Compile, packageDoc) := false,
+    resolvers += Resolver.mavenLocal,
+    libraryDependencies ++= Seq(
+      "io.swagger" % "swagger-annotations" % "1.5.22" % "compile",
+      "org.jboss.resteasy" % "resteasy-client" % "3.1.3.Final" % "compile",
+      "org.jboss.resteasy" % "resteasy-multipart-provider" % "4.5.11.Final" % "compile",
+      "org.jboss.resteasy" % "resteasy-jackson2-provider" % "4.5.11.Final" % "compile",
+      "com.fasterxml.jackson.core" % "jackson-core" % "2.13.4" % "compile",
+      "com.fasterxml.jackson.core" % "jackson-annotations" % "2.13.4" % "compile",
+      "com.fasterxml.jackson.core" % "jackson-databind" % "2.13.4.2" % "compile",
+      "com.github.joschi.jackson" % "jackson-datatype-threetenbp" % "2.9.10" % "compile",
+      "com.fasterxml.jackson.datatype" % "jackson-datatype-jsr310" % "2.9.10" % "compile",
+      "jakarta.annotation" % "jakarta.annotation-api" % "1.3.5" % "compile",
+      "junit" % "junit" % "4.13" % "test",
+      "com.novocode" % "junit-interface" % "0.10" % "test"
+    )
+  )

samples/client/petstore/java/resteasy-echo/docs/AdditionalPropertiesClass.md

@@ -0,0 +1,14 @@
+
+
+# AdditionalPropertiesClass
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**mapProperty** | **Map<String, String>** |  |  [optional] |
+|**mapOfMapProperty** | **Map<String, Map<String, String>>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/AllOfWithSingleRef.md

@@ -0,0 +1,14 @@
+
+
+# AllOfWithSingleRef
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**username** | **String** |  |  [optional] |
+|**singleRefType** | **SingleRefType** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Animal.md

@@ -0,0 +1,14 @@
+
+
+# Animal
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**className** | **String** |  |  |
+|**color** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/AnotherFakeApi.md

@@ -0,0 +1,75 @@
+# AnotherFakeApi
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**call123testSpecialTags**](AnotherFakeApi.md#call123testSpecialTags) | **PATCH** /another-fake/dummy | To test special tags |
+
+
+
+## call123testSpecialTags
+
+> Client call123testSpecialTags(client)
+
+To test special tags
+
+To test special tags and operation ID starting with number
+
+### 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.AnotherFakeApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
+        Client client = new Client(); // Client | client model
+        try {
+            Client result = apiInstance.call123testSpecialTags(client);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **client** | [**Client**](Client.md)| client model | |
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+

samples/client/petstore/java/resteasy-echo/docs/ArrayOfArrayOfNumberOnly.md

@@ -0,0 +1,13 @@
+
+
+# ArrayOfArrayOfNumberOnly
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**arrayArrayNumber** | **List<List<BigDecimal>>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ArrayOfNumberOnly.md

@@ -0,0 +1,13 @@
+
+
+# ArrayOfNumberOnly
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**arrayNumber** | **List<BigDecimal>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ArrayTest.md

@@ -0,0 +1,15 @@
+
+
+# ArrayTest
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**arrayOfString** | **List<String>** |  |  [optional] |
+|**arrayArrayOfInteger** | **List<List<Long>>** |  |  [optional] |
+|**arrayArrayOfModel** | **List<List<ReadOnlyFirst>>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Capitalization.md

@@ -0,0 +1,18 @@
+
+
+# Capitalization
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**smallCamel** | **String** |  |  [optional] |
+|**capitalCamel** | **String** |  |  [optional] |
+|**smallSnake** | **String** |  |  [optional] |
+|**capitalSnake** | **String** |  |  [optional] |
+|**scAETHFlowPoints** | **String** |  |  [optional] |
+|**ATT_NAME** | **String** | Name of the pet  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Cat.md

@@ -0,0 +1,13 @@
+
+
+# Cat
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**declawed** | **Boolean** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Category.md

@@ -0,0 +1,14 @@
+
+
+# Category
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  [optional] |
+|**name** | **String** |  |  |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ChildWithNullable.md

@@ -0,0 +1,13 @@
+
+
+# ChildWithNullable
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**otherProperty** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ClassModel.md

@@ -0,0 +1,14 @@
+
+
+# ClassModel
+
+Model for testing model with \"_class\" property
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**propertyClass** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Client.md

@@ -0,0 +1,13 @@
+
+
+# Client
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**client** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/DefaultApi.md

@@ -0,0 +1,69 @@
+# DefaultApi
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**fooGet**](DefaultApi.md#fooGet) | **GET** /foo |  |
+
+
+
+## fooGet
+
+> FooGetDefaultResponse fooGet()
+
+
+
+### 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.DefaultApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        DefaultApi apiInstance = new DefaultApi(defaultClient);
+        try {
+            FooGetDefaultResponse result = apiInstance.fooGet();
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling DefaultApi#fooGet");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+[**FooGetDefaultResponse**](FooGetDefaultResponse.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | response |  -  |
+

samples/client/petstore/java/resteasy-echo/docs/DeprecatedObject.md

@@ -0,0 +1,13 @@
+
+
+# DeprecatedObject
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**name** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Dog.md

@@ -0,0 +1,13 @@
+
+
+# Dog
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**breed** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/EnumArrays.md

@@ -0,0 +1,32 @@
+
+
+# EnumArrays
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**justSymbol** | [**JustSymbolEnum**](#JustSymbolEnum) |  |  [optional] |
+|**arrayEnum** | [**List<ArrayEnumEnum>**](#List<ArrayEnumEnum>) |  |  [optional] |
+
+
+
+## Enum: JustSymbolEnum
+
+| Name | Value |
+|---- | -----|
+| GREATER_THAN_OR_EQUAL_TO | ">=" |
+| DOLLAR | "$" |
+
+
+
+## Enum: List<ArrayEnumEnum>
+
+| Name | Value |
+|---- | -----|
+| FISH | "fish" |
+| CRAB | "crab" |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/EnumClass.md

@@ -0,0 +1,15 @@
+
+
+# EnumClass
+
+## Enum
+
+
+* `_ABC` (value: `"_abc"`)
+
+* `_EFG` (value: `"-efg"`)
+
+* `_XYZ_` (value: `"(xyz)"`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/EnumTest.md

@@ -0,0 +1,58 @@
+
+
+# EnumTest
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**enumString** | [**EnumStringEnum**](#EnumStringEnum) |  |  [optional] |
+|**enumStringRequired** | [**EnumStringRequiredEnum**](#EnumStringRequiredEnum) |  |  |
+|**enumInteger** | [**EnumIntegerEnum**](#EnumIntegerEnum) |  |  [optional] |
+|**enumNumber** | [**EnumNumberEnum**](#EnumNumberEnum) |  |  [optional] |
+|**outerEnum** | **OuterEnum** |  |  [optional] |
+|**outerEnumInteger** | **OuterEnumInteger** |  |  [optional] |
+|**outerEnumDefaultValue** | **OuterEnumDefaultValue** |  |  [optional] |
+|**outerEnumIntegerDefaultValue** | **OuterEnumIntegerDefaultValue** |  |  [optional] |
+
+
+
+## Enum: EnumStringEnum
+
+| Name | Value |
+|---- | -----|
+| UPPER | "UPPER" |
+| LOWER | "lower" |
+| EMPTY | "" |
+
+
+
+## Enum: EnumStringRequiredEnum
+
+| Name | Value |
+|---- | -----|
+| UPPER | "UPPER" |
+| LOWER | "lower" |
+| EMPTY | "" |
+
+
+
+## Enum: EnumIntegerEnum
+
+| Name | Value |
+|---- | -----|
+| NUMBER_1 | 1 |
+| NUMBER_MINUS_1 | -1 |
+
+
+
+## Enum: EnumNumberEnum
+
+| Name | Value |
+|---- | -----|
+| NUMBER_1_DOT_1 | 1.1 |
+| NUMBER_MINUS_1_DOT_2 | -1.2 |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/FakeBigDecimalMap200Response.md

@@ -0,0 +1,14 @@
+
+
+# FakeBigDecimalMap200Response
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**someId** | **BigDecimal** |  |  [optional] |
+|**someMap** | **Map<String, BigDecimal>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/FakeClassnameTags123Api.md

@@ -0,0 +1,82 @@
+# FakeClassnameTags123Api
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**testClassname**](FakeClassnameTags123Api.md#testClassname) | **PATCH** /fake_classname_test | To test class name in snake case |
+
+
+
+## testClassname
+
+> Client testClassname(client)
+
+To test class name in snake case
+
+To test class name in snake case
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.FakeClassnameTags123Api;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure API key authorization: api_key_query
+        ApiKeyAuth api_key_query = (ApiKeyAuth) defaultClient.getAuthentication("api_key_query");
+        api_key_query.setApiKey("YOUR API KEY");
+        // Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+        //api_key_query.setApiKeyPrefix("Token");
+
+        FakeClassnameTags123Api apiInstance = new FakeClassnameTags123Api(defaultClient);
+        Client client = new Client(); // Client | client model
+        try {
+            Client result = apiInstance.testClassname(client);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling FakeClassnameTags123Api#testClassname");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **client** | [**Client**](Client.md)| client model | |
+
+### Return type
+
+[**Client**](Client.md)
+
+### Authorization
+
+[api_key_query](../README.md#api_key_query)
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+

samples/client/petstore/java/resteasy-echo/docs/FileSchemaTestClass.md

@@ -0,0 +1,14 @@
+
+
+# FileSchemaTestClass
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**_file** | [**ModelFile**](ModelFile.md) |  |  [optional] |
+|**files** | [**List<ModelFile>**](ModelFile.md) |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Foo.md

@@ -0,0 +1,13 @@
+
+
+# Foo
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**bar** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/FooGetDefaultResponse.md

@@ -0,0 +1,13 @@
+
+
+# FooGetDefaultResponse
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**string** | [**Foo**](Foo.md) |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/FormatTest.md

@@ -0,0 +1,28 @@
+
+
+# FormatTest
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**integer** | **Integer** |  |  [optional] |
+|**int32** | **Integer** |  |  [optional] |
+|**int64** | **Long** |  |  [optional] |
+|**number** | **BigDecimal** |  |  |
+|**_float** | **Float** |  |  [optional] |
+|**_double** | **Double** |  |  [optional] |
+|**decimal** | **BigDecimal** |  |  [optional] |
+|**string** | **String** |  |  [optional] |
+|**_byte** | **byte[]** |  |  |
+|**binary** | **File** |  |  [optional] |
+|**date** | **LocalDate** |  |  |
+|**dateTime** | **OffsetDateTime** |  |  [optional] |
+|**uuid** | **UUID** |  |  [optional] |
+|**password** | **String** |  |  |
+|**patternWithDigits** | **String** | A string that is a 10 digit number. Can have leading zeros. |  [optional] |
+|**patternWithDigitsAndDelimiter** | **String** | A string starting with 'image_' (case insensitive) and one to three digits following i.e. Image_01. |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/HasOnlyReadOnly.md

@@ -0,0 +1,14 @@
+
+
+# HasOnlyReadOnly
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**bar** | **String** |  |  [optional] [readonly] |
+|**foo** | **String** |  |  [optional] [readonly] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/HealthCheckResult.md

@@ -0,0 +1,14 @@
+
+
+# HealthCheckResult
+
+Just a string to inform instance is up and running. Make it nullable in hope to get it as pointer in generated model.
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**nullableMessage** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/MapTest.md

@@ -0,0 +1,25 @@
+
+
+# MapTest
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**mapMapOfString** | **Map<String, Map<String, String>>** |  |  [optional] |
+|**mapOfEnumString** | [**Map<String, InnerEnum>**](#Map<String, InnerEnum>) |  |  [optional] |
+|**directMap** | **Map<String, Boolean>** |  |  [optional] |
+|**indirectMap** | **Map<String, Boolean>** |  |  [optional] |
+
+
+
+## Enum: Map<String, InnerEnum>
+
+| Name | Value |
+|---- | -----|
+| UPPER | "UPPER" |
+| LOWER | "lower" |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -0,0 +1,15 @@
+
+
+# MixedPropertiesAndAdditionalPropertiesClass
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**uuid** | **UUID** |  |  [optional] |
+|**dateTime** | **OffsetDateTime** |  |  [optional] |
+|**map** | [**Map<String, Animal>**](Animal.md) |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Model200Response.md

@@ -0,0 +1,15 @@
+
+
+# Model200Response
+
+Model for testing model name starting with number
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**name** | **Integer** |  |  [optional] |
+|**propertyClass** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ModelApiResponse.md

@@ -0,0 +1,15 @@
+
+
+# ModelApiResponse
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**code** | **Integer** |  |  [optional] |
+|**type** | **String** |  |  [optional] |
+|**message** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ModelFile.md

@@ -0,0 +1,14 @@
+
+
+# ModelFile
+
+Must be named `File` for test.
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**sourceURI** | **String** | Test capitalization |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ModelList.md

@@ -0,0 +1,13 @@
+
+
+# ModelList
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**_123list** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ModelReturn.md

@@ -0,0 +1,14 @@
+
+
+# ModelReturn
+
+Model for testing reserved words
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**_return** | **Integer** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Name.md

@@ -0,0 +1,17 @@
+
+
+# Name
+
+Model for testing model name same as property name
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**name** | **Integer** |  |  |
+|**snakeCase** | **Integer** |  |  [optional] [readonly] |
+|**property** | **String** |  |  [optional] |
+|**_123number** | **Integer** |  |  [optional] [readonly] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/NullableClass.md

@@ -0,0 +1,24 @@
+
+
+# NullableClass
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**integerProp** | **Integer** |  |  [optional] |
+|**numberProp** | **BigDecimal** |  |  [optional] |
+|**booleanProp** | **Boolean** |  |  [optional] |
+|**stringProp** | **String** |  |  [optional] |
+|**dateProp** | **LocalDate** |  |  [optional] |
+|**datetimeProp** | **OffsetDateTime** |  |  [optional] |
+|**arrayNullableProp** | **List<Object>** |  |  [optional] |
+|**arrayAndItemsNullableProp** | **List<Object>** |  |  [optional] |
+|**arrayItemsNullable** | **List<Object>** |  |  [optional] |
+|**objectNullableProp** | **Map<String, Object>** |  |  [optional] |
+|**objectAndItemsNullableProp** | **Map<String, Object>** |  |  [optional] |
+|**objectItemsNullable** | **Map<String, Object>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/NumberOnly.md

@@ -0,0 +1,13 @@
+
+
+# NumberOnly
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**justNumber** | **BigDecimal** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ObjectWithDeprecatedFields.md

@@ -0,0 +1,16 @@
+
+
+# ObjectWithDeprecatedFields
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**uuid** | **String** |  |  [optional] |
+|**id** | **BigDecimal** |  |  [optional] |
+|**deprecatedRef** | [**DeprecatedObject**](DeprecatedObject.md) |  |  [optional] |
+|**bars** | **List<String>** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Order.md

@@ -0,0 +1,28 @@
+
+
+# Order
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  [optional] |
+|**petId** | **Long** |  |  [optional] |
+|**quantity** | **Integer** |  |  [optional] |
+|**shipDate** | **OffsetDateTime** |  |  [optional] |
+|**status** | [**StatusEnum**](#StatusEnum) | Order Status |  [optional] |
+|**complete** | **Boolean** |  |  [optional] |
+
+
+
+## Enum: StatusEnum
+
+| Name | Value |
+|---- | -----|
+| PLACED | "placed" |
+| APPROVED | "approved" |
+| DELIVERED | "delivered" |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterComposite.md

@@ -0,0 +1,15 @@
+
+
+# OuterComposite
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**myNumber** | **BigDecimal** |  |  [optional] |
+|**myString** | **String** |  |  [optional] |
+|**myBoolean** | **Boolean** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterEnum.md

@@ -0,0 +1,15 @@
+
+
+# OuterEnum
+
+## Enum
+
+
+* `PLACED` (value: `"placed"`)
+
+* `APPROVED` (value: `"approved"`)
+
+* `DELIVERED` (value: `"delivered"`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterEnumDefaultValue.md

@@ -0,0 +1,15 @@
+
+
+# OuterEnumDefaultValue
+
+## Enum
+
+
+* `PLACED` (value: `"placed"`)
+
+* `APPROVED` (value: `"approved"`)
+
+* `DELIVERED` (value: `"delivered"`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterEnumInteger.md

@@ -0,0 +1,15 @@
+
+
+# OuterEnumInteger
+
+## Enum
+
+
+* `NUMBER_0` (value: `0`)
+
+* `NUMBER_1` (value: `1`)
+
+* `NUMBER_2` (value: `2`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterEnumIntegerDefaultValue.md

@@ -0,0 +1,15 @@
+
+
+# OuterEnumIntegerDefaultValue
+
+## Enum
+
+
+* `NUMBER_0` (value: `0`)
+
+* `NUMBER_1` (value: `1`)
+
+* `NUMBER_2` (value: `2`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/OuterObjectWithEnumProperty.md

@@ -0,0 +1,13 @@
+
+
+# OuterObjectWithEnumProperty
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**value** | **OuterEnumInteger** |  |  |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/ParentWithNullable.md

@@ -0,0 +1,22 @@
+
+
+# ParentWithNullable
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**type** | [**TypeEnum**](#TypeEnum) |  |  [optional] |
+|**nullableProperty** | **String** |  |  [optional] |
+
+
+
+## Enum: TypeEnum
+
+| Name | Value |
+|---- | -----|
+| CHILDWITHNULLABLE | "ChildWithNullable" |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/Pet.md

@@ -0,0 +1,28 @@
+
+
+# Pet
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  [optional] |
+|**category** | [**Category**](Category.md) |  |  [optional] |
+|**name** | **String** |  |  |
+|**photoUrls** | **Set<String>** |  |  |
+|**tags** | [**List<Tag>**](Tag.md) |  |  [optional] |
+|**status** | [**StatusEnum**](#StatusEnum) | pet status in the store |  [optional] |
+
+
+
+## Enum: StatusEnum
+
+| Name | Value |
+|---- | -----|
+| AVAILABLE | "available" |
+| PENDING | "pending" |
+| SOLD | "sold" |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/PetApi.md

@@ -0,0 +1,678 @@
+# PetApi
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**addPet**](PetApi.md#addPet) | **POST** /pet | Add a new pet to the store |
+| [**deletePet**](PetApi.md#deletePet) | **DELETE** /pet/{petId} | Deletes a pet |
+| [**findPetsByStatus**](PetApi.md#findPetsByStatus) | **GET** /pet/findByStatus | Finds Pets by status |
+| [**findPetsByTags**](PetApi.md#findPetsByTags) | **GET** /pet/findByTags | Finds Pets by tags |
+| [**getPetById**](PetApi.md#getPetById) | **GET** /pet/{petId} | Find pet by ID |
+| [**updatePet**](PetApi.md#updatePet) | **PUT** /pet | Update an existing pet |
+| [**updatePetWithForm**](PetApi.md#updatePetWithForm) | **POST** /pet/{petId} | Updates a pet in the store with form data |
+| [**uploadFile**](PetApi.md#uploadFile) | **POST** /pet/{petId}/uploadImage | uploads an image |
+| [**uploadFileWithRequiredFile**](PetApi.md#uploadFileWithRequiredFile) | **POST** /fake/{petId}/uploadImageWithRequiredFile | uploads an image (required) |
+
+
+
+## addPet
+
+> addPet(pet)
+
+Add a new pet to the store
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
+        try {
+            apiInstance.addPet(pet);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#addPet");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: application/json, application/xml
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+| **405** | Invalid input |  -  |
+
+
+## deletePet
+
+> deletePet(petId, apiKey)
+
+Deletes a pet
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Long petId = 56L; // Long | Pet id to delete
+        String apiKey = "apiKey_example"; // String | 
+        try {
+            apiInstance.deletePet(petId, apiKey);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#deletePet");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **petId** | **Long**| Pet id to delete | |
+| **apiKey** | **String**|  | [optional] |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+| **400** | Invalid pet value |  -  |
+
+
+## findPetsByStatus
+
+> List<Pet> findPetsByStatus(status)
+
+Finds Pets by status
+
+Multiple status values can be provided with comma separated strings
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        List<String> status = Arrays.asList("available"); // List<String> | Status values that need to be considered for filter
+        try {
+            List<Pet> result = apiInstance.findPetsByStatus(status);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#findPetsByStatus");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **status** | [**List&lt;String&gt;**](String.md)| Status values that need to be considered for filter | [enum: available, pending, sold] |
+
+### Return type
+
+[**List&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid status value |  -  |
+
+
+## findPetsByTags
+
+> Set&lt;Pet&gt; findPetsByTags(tags)
+
+Finds Pets by tags
+
+Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
+        try {
+            Set<Pet> result = apiInstance.findPetsByTags(tags);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#findPetsByTags");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **tags** | [**Set&lt;String&gt;**](String.md)| Tags to filter by | |
+
+### Return type
+
+[**Set&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid tag value |  -  |
+
+
+## getPetById
+
+> Pet getPetById(petId)
+
+Find pet by ID
+
+Returns a single pet
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure API key authorization: api_key
+        ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
+        api_key.setApiKey("YOUR API KEY");
+        // Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+        //api_key.setApiKeyPrefix("Token");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Long petId = 56L; // Long | ID of pet to return
+        try {
+            Pet result = apiInstance.getPetById(petId);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#getPetById");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **petId** | **Long**| ID of pet to return | |
+
+### Return type
+
+[**Pet**](Pet.md)
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+
+
+## updatePet
+
+> updatePet(pet)
+
+Update an existing pet
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
+        try {
+            apiInstance.updatePet(pet);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#updatePet");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: application/json, application/xml
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+| **405** | Validation exception |  -  |
+
+
+## updatePetWithForm
+
+> updatePetWithForm(petId, name, status)
+
+Updates a pet in the store with form data
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Long petId = 56L; // Long | ID of pet that needs to be updated
+        String name = "name_example"; // String | Updated name of the pet
+        String status = "status_example"; // String | Updated status of the pet
+        try {
+            apiInstance.updatePetWithForm(petId, name, status);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#updatePetWithForm");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **petId** | **Long**| ID of pet that needs to be updated | |
+| **name** | **String**| Updated name of the pet | [optional] |
+| **status** | **String**| Updated status of the pet | [optional] |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: application/x-www-form-urlencoded
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+| **405** | Invalid input |  -  |
+
+
+## uploadFile
+
+> String uploadFile(petId, additionalMetadata, _file)
+
+uploads an image
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Long petId = 56L; // Long | ID of pet to update
+        String additionalMetadata = "additionalMetadata_example"; // String | Additional data to pass to server
+        File _file = new File("/path/to/file"); // File | file to upload
+        try {
+            String result = apiInstance.uploadFile(petId, additionalMetadata, _file);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#uploadFile");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **petId** | **Long**| ID of pet to update | |
+| **additionalMetadata** | **String**| Additional data to pass to server | [optional] |
+| **_file** | **File**| file to upload | [optional] |
+
+### Return type
+
+**String**
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: multipart/form-data
+- **Accept**: text/plain
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
+
+
+## uploadFileWithRequiredFile
+
+> ModelApiResponse uploadFileWithRequiredFile(petId, requiredFile, additionalMetadata)
+
+uploads an image (required)
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.PetApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure OAuth2 access token for authorization: petstore_auth
+        OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
+        petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
+
+        PetApi apiInstance = new PetApi(defaultClient);
+        Long petId = 56L; // Long | ID of pet to update
+        File requiredFile = new File("/path/to/file"); // File | file to upload
+        String additionalMetadata = "additionalMetadata_example"; // String | Additional data to pass to server
+        try {
+            ModelApiResponse result = apiInstance.uploadFileWithRequiredFile(petId, requiredFile, additionalMetadata);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling PetApi#uploadFileWithRequiredFile");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **petId** | **Long**| ID of pet to update | |
+| **requiredFile** | **File**| file to upload | |
+| **additionalMetadata** | **String**| Additional data to pass to server | [optional] |
+
+### Return type
+
+[**ModelApiResponse**](ModelApiResponse.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+- **Content-Type**: multipart/form-data
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+

samples/client/petstore/java/resteasy-echo/docs/ReadOnlyFirst.md

@@ -0,0 +1,14 @@
+
+
+# ReadOnlyFirst
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**bar** | **String** |  |  [optional] [readonly] |
+|**baz** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/SingleRefType.md

@@ -0,0 +1,13 @@
+
+
+# SingleRefType
+
+## Enum
+
+
+* `ADMIN` (value: `"admin"`)
+
+* `USER` (value: `"user"`)
+
+
+

samples/client/petstore/java/resteasy-echo/docs/SpecialModelName.md

@@ -0,0 +1,13 @@
+
+
+# SpecialModelName
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**$specialPropertyName** | **Long** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/StoreApi.md

@@ -0,0 +1,282 @@
+# StoreApi
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**deleteOrder**](StoreApi.md#deleteOrder) | **DELETE** /store/order/{order_id} | Delete purchase order by ID |
+| [**getInventory**](StoreApi.md#getInventory) | **GET** /store/inventory | Returns pet inventories by status |
+| [**getOrderById**](StoreApi.md#getOrderById) | **GET** /store/order/{order_id} | Find purchase order by ID |
+| [**placeOrder**](StoreApi.md#placeOrder) | **POST** /store/order | Place an order for a pet |
+
+
+
+## deleteOrder
+
+> deleteOrder(orderId)
+
+Delete purchase order by ID
+
+For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
+
+### 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.StoreApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        StoreApi apiInstance = new StoreApi(defaultClient);
+        String orderId = "orderId_example"; // String | ID of the order that needs to be deleted
+        try {
+            apiInstance.deleteOrder(orderId);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling StoreApi#deleteOrder");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **orderId** | **String**| ID of the order that needs to be deleted | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
+
+## getInventory
+
+> Map<String, Integer> getInventory()
+
+Returns pet inventories by status
+
+Returns a map of status codes to quantities
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.StoreApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+        
+        // Configure API key authorization: api_key
+        ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
+        api_key.setApiKey("YOUR API KEY");
+        // Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
+        //api_key.setApiKeyPrefix("Token");
+
+        StoreApi apiInstance = new StoreApi(defaultClient);
+        try {
+            Map<String, Integer> result = apiInstance.getInventory();
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling StoreApi#getInventory");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+**Map&lt;String, Integer&gt;**
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+
+## getOrderById
+
+> Order getOrderById(orderId)
+
+Find purchase order by ID
+
+For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+
+### 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.StoreApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        StoreApi apiInstance = new StoreApi(defaultClient);
+        Long orderId = 56L; // Long | ID of pet that needs to be fetched
+        try {
+            Order result = apiInstance.getOrderById(orderId);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling StoreApi#getOrderById");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **orderId** | **Long**| ID of pet that needs to be fetched | |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
+
+## placeOrder
+
+> Order placeOrder(order)
+
+Place an order for a pet
+
+
+
+### 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.StoreApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        StoreApi apiInstance = new StoreApi(defaultClient);
+        Order order = new Order(); // Order | order placed for purchasing the pet
+        try {
+            Order result = apiInstance.placeOrder(order);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling StoreApi#placeOrder");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **order** | [**Order**](Order.md)| order placed for purchasing the pet | |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid Order |  -  |
+

samples/client/petstore/java/resteasy-echo/docs/Tag.md

@@ -0,0 +1,14 @@
+
+
+# Tag
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  [optional] |
+|**name** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/TestInlineFreeformAdditionalPropertiesRequest.md

@@ -0,0 +1,13 @@
+
+
+# TestInlineFreeformAdditionalPropertiesRequest
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**someProperty** | **String** |  |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/User.md

@@ -0,0 +1,20 @@
+
+
+# User
+
+
+## Properties
+
+| Name | Type | Description | Notes |
+|------------ | ------------- | ------------- | -------------|
+|**id** | **Long** |  |  [optional] |
+|**username** | **String** |  |  [optional] |
+|**firstName** | **String** |  |  [optional] |
+|**lastName** | **String** |  |  [optional] |
+|**email** | **String** |  |  [optional] |
+|**password** | **String** |  |  [optional] |
+|**phone** | **String** |  |  [optional] |
+|**userStatus** | **Integer** | User Status |  [optional] |
+
+
+

samples/client/petstore/java/resteasy-echo/docs/UserApi.md

@@ -0,0 +1,543 @@
+# UserApi
+
+All URIs are relative to *http://localhost:3000*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**createUser**](UserApi.md#createUser) | **POST** /user | Create user |
+| [**createUsersWithArrayInput**](UserApi.md#createUsersWithArrayInput) | **POST** /user/createWithArray | Creates list of users with given input array |
+| [**createUsersWithListInput**](UserApi.md#createUsersWithListInput) | **POST** /user/createWithList | Creates list of users with given input array |
+| [**deleteUser**](UserApi.md#deleteUser) | **DELETE** /user/{username} | Delete user |
+| [**getUserByName**](UserApi.md#getUserByName) | **GET** /user/{username} | Get user by user name |
+| [**loginUser**](UserApi.md#loginUser) | **GET** /user/login | Logs user into the system |
+| [**logoutUser**](UserApi.md#logoutUser) | **GET** /user/logout | Logs out current logged in user session |
+| [**updateUser**](UserApi.md#updateUser) | **PUT** /user/{username} | Updated user |
+
+
+
+## createUser
+
+> createUser(user)
+
+Create user
+
+This can only be done by the logged in user.
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        User user = new User(); // User | Created user object
+        try {
+            apiInstance.createUser(user);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#createUser");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **user** | [**User**](User.md)| Created user object | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+
+## createUsersWithArrayInput
+
+> createUsersWithArrayInput(user)
+
+Creates list of users with given input array
+
+
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        List<User> user = Arrays.asList(); // List<User> | List of user object
+        try {
+            apiInstance.createUsersWithArrayInput(user);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#createUsersWithArrayInput");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+
+## createUsersWithListInput
+
+> createUsersWithListInput(user)
+
+Creates list of users with given input array
+
+
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        List<User> user = Arrays.asList(); // List<User> | List of user object
+        try {
+            apiInstance.createUsersWithListInput(user);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#createUsersWithListInput");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+
+## deleteUser
+
+> deleteUser(username)
+
+Delete user
+
+This can only be done by the logged in user.
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        String username = "username_example"; // String | The name that needs to be deleted
+        try {
+            apiInstance.deleteUser(username);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#deleteUser");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **username** | **String**| The name that needs to be deleted | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
+
+## getUserByName
+
+> User getUserByName(username)
+
+Get user by user name
+
+
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        String username = "username_example"; // String | The name that needs to be fetched. Use user1 for testing.
+        try {
+            User result = apiInstance.getUserByName(username);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#getUserByName");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **username** | **String**| The name that needs to be fetched. Use user1 for testing. | |
+
+### Return type
+
+[**User**](User.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
+
+## loginUser
+
+> String loginUser(username, password)
+
+Logs user into the system
+
+
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        String username = "username_example"; // String | The user name for login
+        String password = "password_example"; // String | The password for login in clear text
+        try {
+            String result = apiInstance.loginUser(username, password);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#loginUser");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **username** | **String**| The user name for login | |
+| **password** | **String**| The password for login in clear text | |
+
+### Return type
+
+**String**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  * X-Rate-Limit - calls per hour allowed by the user <br>  * X-Expires-After - date in UTC when token expires <br>  |
+| **400** | Invalid username/password supplied |  -  |
+
+
+## logoutUser
+
+> logoutUser()
+
+Logs out current logged in user session
+
+
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        try {
+            apiInstance.logoutUser();
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#logoutUser");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+
+## updateUser
+
+> updateUser(username, user)
+
+Updated user
+
+This can only be done by the logged in user.
+
+### 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.UserApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://localhost:3000");
+
+        UserApi apiInstance = new UserApi(defaultClient);
+        String username = "username_example"; // String | name that need to be deleted
+        User user = new User(); // User | Updated user object
+        try {
+            apiInstance.updateUser(username, user);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling UserApi#updateUser");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **username** | **String**| name that need to be deleted | |
+| **user** | [**User**](User.md)| Updated user object | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid user supplied |  -  |
+| **404** | User not found |  -  |
+

samples/client/petstore/java/resteasy-echo/git_push.sh

@@ -0,0 +1,57 @@
+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 openapi-petstore-perl "minor update" "gitlab.com"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+git_host=$4
+
+if [ "$git_host" = "" ]; then
+    git_host="github.com"
+    echo "[INFO] No command line input provided. Set \$git_host to $git_host"
+fi
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository.
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=$(git remote)
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
+        git remote add origin https://${git_host}/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:"${GIT_TOKEN}"@${git_host}/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'

samples/client/petstore/java/resteasy-echo/gradle.properties

@@ -0,0 +1,6 @@
+# This file is automatically generated by OpenAPI Generator (https://github.com/openAPITools/openapi-generator).
+# To include other gradle properties as part of the code generation process, please use the `gradleProperties` option.
+#
+# Gradle properties reference: https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties
+# For example, uncomment below to build for Android
+#target = android

samples/client/petstore/java/resteasy-echo/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

samples/client/petstore/java/resteasy-echo/gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

samples/client/petstore/java/resteasy-echo/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

samples/client/petstore/java/resteasy-echo/pom.xml

@@ -0,0 +1,260 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.openapitools</groupId>
+    <artifactId>petstore-resteasy-echo</artifactId>
+    <packaging>jar</packaging>
+    <name>petstore-resteasy-echo</name>
+    <version>1.0.0</version>
+    <scm>
+        <connection>scm:git:git@github.com:openapitools/openapi-generator.git</connection>
+        <developerConnection>scm:git:git@github.com:openapitools/openapi-generator.git</developerConnection>
+        <url>https://github.com/openapitools/openapi-generator</url>
+    </scm>
+
+    <licenses>
+        <license>
+            <name>Unlicense</name>
+            <url>https://www.apache.org/licenses/LICENSE-2.0.html</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+
+    <developers>
+        <developer>
+            <name>OpenAPI-Generator Contributors</name>
+            <email>team@openapitools.org</email>
+            <organization>OpenAPITools.org</organization>
+            <organizationUrl>http://openapitools.org</organizationUrl>
+        </developer>
+    </developers>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>3.0.0-M1</version>
+                <executions>
+                    <execution>
+                        <id>enforce-maven</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <requireMavenVersion>
+                                    <version>2.2.0</version>
+                                </requireMavenVersion>
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.12</version>
+                <configuration>
+                    <systemProperties>
+                        <property>
+                            <name>loggerPath</name>
+                            <value>conf/log4j.properties</value>
+                        </property>
+                    </systemProperties>
+                    <argLine>-Xms512m -Xmx1500m</argLine>
+                    <parallel>methods</parallel>
+                    <forkMode>pertest</forkMode>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>copy-dependencies</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/lib</outputDirectory>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <!-- attach test jar -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>2.6</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>jar</goal>
+                            <goal>test-jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <version>1.10</version>
+                <executions>
+                    <execution>
+                        <id>add_sources</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>add-source</goal>
+                        </goals>
+                        <configuration>
+                            <sources>
+                                <source>src/main/java</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>add_test_sources</id>
+                        <phase>generate-test-sources</phase>
+                        <goals>
+                            <goal>add-test-source</goal>
+                        </goals>
+                        <configuration>
+                            <sources>
+                                <source>src/test/java</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.5.1</version>
+                <configuration>
+                   <source>1.8</source>
+                   <target>1.8</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.3.2</version>
+                <configuration>
+                    <doclint>none</doclint>
+                    <source>1.8</source>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>attach-javadocs</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <!-- @Nullable annotation -->
+        <dependency>
+            <groupId>com.google.code.findbugs</groupId>
+            <artifactId>jsr305</artifactId>
+            <version>3.0.2</version>
+        </dependency>
+        <!-- HTTP client: jersey-client -->
+        <dependency>
+            <groupId>org.jboss.resteasy</groupId>
+            <artifactId>resteasy-client</artifactId>
+            <version>${resteasy-version}</version>
+            <exclusions>
+              <exclusion>
+                <groupId>org.jboss.resteasy</groupId>
+                <artifactId>resteasy-jaxrs-services</artifactId>
+              </exclusion>
+              <exclusion>
+                <groupId>net.jcip</groupId>
+                <artifactId>jcip-annotations</artifactId>
+                </exclusion>
+              </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.resteasy</groupId>
+            <artifactId>resteasy-multipart-provider</artifactId>
+            <version>${resteasy-version}</version>
+            <exclusions>
+              <exclusion>
+                <groupId>com.sun.xml.bind</groupId>
+                <artifactId>jaxb-impl</artifactId>
+              </exclusion>
+              <exclusion>
+                <groupId>com.sun.mail</groupId>
+                <artifactId>javax.mail</artifactId>
+              </exclusion>
+            </exclusions>
+        </dependency>
+        <!-- JSON processing: jackson -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-core</artifactId>
+            <version>${jackson-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+            <version>${jackson-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson-databind-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openapitools</groupId>
+            <artifactId>jackson-databind-nullable</artifactId>
+            <version>${jackson-databind-nullable-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.resteasy</groupId>
+            <artifactId>resteasy-jackson2-provider</artifactId>
+            <version>${resteasy-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr310</artifactId>
+            <version>${jackson-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.joschi.jackson</groupId>
+            <artifactId>jackson-datatype-threetenbp</artifactId>
+            <version>${threetenbp-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.annotation</groupId>
+            <artifactId>jakarta.annotation-api</artifactId>
+            <version>${jakarta-annotation-version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <!-- test dependencies -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit-version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <resteasy-version>4.7.6.Final</resteasy-version>
+        <jackson-version>2.15.2</jackson-version>
+        <jackson-databind-version>2.15.2</jackson-databind-version>
+        <jackson-databind-nullable-version>0.2.6</jackson-databind-nullable-version>
+        <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
+        <threetenbp-version>2.9.10</threetenbp-version>
+        <maven-plugin-version>1.0.0</maven-plugin-version>
+        <junit-version>4.13</junit-version>
+    </properties>
+</project>

samples/client/petstore/java/resteasy-echo/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = "petstore-resteasy-echo"

samples/client/petstore/java/resteasy-echo/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest package="org.openapitools.client" xmlns:android="http://schemas.android.com/apk/res/android">
+    <application />
+</manifest>

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/ApiClient.java

@@ -0,0 +1,765 @@
+package org.openapitools.client;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.time.OffsetDateTime;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.Form;
+import javax.ws.rs.core.GenericEntity;
+import javax.ws.rs.core.GenericType;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import org.jboss.logging.Logger;
+import org.jboss.resteasy.client.jaxrs.internal.ClientConfiguration;
+import org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataOutput;
+import org.jboss.resteasy.spi.ResteasyProviderFactory;
+
+import org.openapitools.client.auth.Authentication;
+import org.openapitools.client.auth.HttpBasicAuth;
+import org.openapitools.client.auth.HttpBearerAuth;
+import org.openapitools.client.auth.ApiKeyAuth;
+import org.openapitools.client.auth.OAuth;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class ApiClient extends JavaTimeFormatter {
+  private Map<String, String> defaultHeaderMap = new HashMap<String, String>();
+  private Map<String, String> defaultCookieMap = new HashMap<String, String>();
+  private String basePath = "http://localhost:3000";
+  private boolean debugging = false;
+
+  private Client httpClient;
+  private JSON json;
+  private String tempFolderPath = null;
+
+  private Map<String, Authentication> authentications;
+
+  private int statusCode;
+  private Map<String, List<String>> responseHeaders;
+
+  private DateFormat dateFormat;
+
+  public ApiClient() {
+    json = new JSON();
+    httpClient = buildHttpClient(debugging);
+
+    this.dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX", Locale.ROOT);
+
+    // Use UTC as the default time zone.
+    this.dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+    this.json.setDateFormat((DateFormat) dateFormat.clone());
+
+    // Set default User-Agent.
+    setUserAgent("OpenAPI-Generator/1.0.0/java");
+
+    // Setup authentications (key: authentication name, value: authentication).
+    authentications = new HashMap<String, Authentication>();
+    authentications.put("petstore_auth", new OAuth());
+    authentications.put("api_key", new ApiKeyAuth("header", "api_key"));
+    authentications.put("api_key_query", new ApiKeyAuth("query", "api_key_query"));
+    authentications.put("http_basic_test", new HttpBasicAuth());
+    authentications.put("bearer_test", new HttpBearerAuth("bearer"));
+    // Prevent the authentications from being modified.
+    authentications = Collections.unmodifiableMap(authentications);
+  }
+
+  /**
+   * Gets the JSON instance to do JSON serialization and deserialization.
+   * @return the JSON utility class
+   */
+  public JSON getJSON() {
+    return json;
+  }
+
+  public Client getHttpClient() {
+    return httpClient;
+  }
+
+  public ApiClient setHttpClient(Client httpClient) {
+    this.httpClient = httpClient;
+    return this;
+  }
+
+  public String getBasePath() {
+    return basePath;
+  }
+
+  public ApiClient setBasePath(String basePath) {
+    this.basePath = basePath;
+    return this;
+  }
+
+  /**
+   * Gets the status code of the previous request
+   * @return the status code of the previous request
+   */
+  public int getStatusCode() {
+    return statusCode;
+  }
+
+  /**
+   * Gets the response headers of the previous request
+   * @return the response headers of the previous request
+   */
+  public Map<String, List<String>> getResponseHeaders() {
+    return responseHeaders;
+  }
+
+  /**
+   * Get authentications (key: authentication name, value: authentication).
+   * @return the authentications
+   */
+  public Map<String, Authentication> getAuthentications() {
+    return authentications;
+  }
+
+  /**
+   * Get authentication for the given name.
+   *
+   * @param authName The authentication name
+   * @return The authentication, null if not found
+   */
+  public Authentication getAuthentication(String authName) {
+    return authentications.get(authName);
+  }
+
+  /**
+   * Helper method to set username for the first HTTP basic authentication.
+   * @param username the username
+   */
+  public void setUsername(String username) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof HttpBasicAuth) {
+        ((HttpBasicAuth) auth).setUsername(username);
+        return;
+      }
+    }
+    throw new RuntimeException("No HTTP basic authentication configured!");
+  }
+
+  /**
+   * Helper method to set password for the first HTTP basic authentication.
+   * @param password the password
+   */
+  public void setPassword(String password) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof HttpBasicAuth) {
+        ((HttpBasicAuth) auth).setPassword(password);
+        return;
+      }
+    }
+    throw new RuntimeException("No HTTP basic authentication configured!");
+  }
+
+  /**
+   * Helper method to set API key value for the first API key authentication.
+   * @param apiKey the API key
+   */
+  public void setApiKey(String apiKey) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof ApiKeyAuth) {
+        ((ApiKeyAuth) auth).setApiKey(apiKey);
+        return;
+      }
+    }
+    throw new RuntimeException("No API key authentication configured!");
+  }
+
+  /**
+   * Helper method to set API key prefix for the first API key authentication.
+   * @param apiKeyPrefix the API key prefix
+   */
+  public void setApiKeyPrefix(String apiKeyPrefix) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof ApiKeyAuth) {
+        ((ApiKeyAuth) auth).setApiKeyPrefix(apiKeyPrefix);
+        return;
+      }
+    }
+    throw new RuntimeException("No API key authentication configured!");
+  }
+
+  /**
+   * Helper method to set access token for the first OAuth2 authentication.
+   * @param accessToken the access token
+   */
+  public void setAccessToken(String accessToken) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof OAuth) {
+        ((OAuth) auth).setAccessToken(accessToken);
+        return;
+      }
+    }
+    throw new RuntimeException("No OAuth2 authentication configured!");
+  }
+
+  /**
+   * Set the User-Agent header's value (by adding to the default header map).
+   * @param userAgent the User-Agent header value
+   * @return this {@code ApiClient}
+   */
+  public ApiClient setUserAgent(String userAgent) {
+    addDefaultHeader("User-Agent", userAgent);
+    return this;
+  }
+
+  /**
+   * Add a default header.
+   *
+   * @param key The header's key
+   * @param value The header's value
+   * @return this {@code ApiClient}
+   */
+  public ApiClient addDefaultHeader(String key, String value) {
+    defaultHeaderMap.put(key, value);
+    return this;
+  }
+
+  /**
+   * Check that whether debugging is enabled for this API client.
+   * @return {@code true} if debugging is enabled for this API client
+   */
+  public boolean isDebugging() {
+    return debugging;
+  }
+
+  /**
+   * Enable/disable debugging for this API client.
+   *
+   * @param debugging To enable (true) or disable (false) debugging
+   * @return this {@code ApiClient}
+   */
+  public ApiClient setDebugging(boolean debugging) {
+    this.debugging = debugging;
+    // Rebuild HTTP Client according to the new "debugging" value.
+    this.httpClient = buildHttpClient(debugging);
+    return this;
+  }
+
+  /**
+   * The path of temporary folder used to store downloaded files from endpoints
+   * with file response. The default value is <code>null</code>, i.e. using
+   * the system's default temporary folder.
+   *
+   * @return the temporary folder path
+   * @see <a href="https://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html#createTempFile(java.lang.String,%20java.lang.String,%20java.nio.file.attribute.FileAttribute...)">createTempFile</a>
+   */
+  public String getTempFolderPath() {
+    return tempFolderPath;
+  }
+
+  public ApiClient setTempFolderPath(String tempFolderPath) {
+    this.tempFolderPath = tempFolderPath;
+    return this;
+  }
+
+  /**
+   * Get the date format used to parse/format date parameters.
+   * @return the date format used to parse/format date parameters
+   */
+  public DateFormat getDateFormat() {
+    return dateFormat;
+  }
+
+  /**
+   * Set the date format used to parse/format date parameters.
+   * @param dateFormat a date format used to parse/format date parameters
+   * @return this {@code ApiClient}
+   */
+  public ApiClient setDateFormat(DateFormat dateFormat) {
+    this.dateFormat = dateFormat;
+    // also set the date format for model (de)serialization with Date properties
+    this.json.setDateFormat((DateFormat) dateFormat.clone());
+    return this;
+  }
+
+  /**
+   * Parse the given string into Date object.
+   * @param str a string to parse
+   * @return a {@code Date} object
+   */
+  public Date parseDate(String str) {
+    try {
+      return dateFormat.parse(str);
+    } catch (java.text.ParseException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  /**
+   * Format the given Date object into string.
+   * @param date a {@code Date} object to format
+   * @return the {@code String} version of the {@code Date} object
+   */
+  public String formatDate(Date date) {
+    return dateFormat.format(date);
+  }
+
+  /**
+   * Format the given parameter object into string.
+   * @param param an object to format
+   * @return the {@code String} version of the object
+   */
+  public String parameterToString(Object param) {
+    if (param == null) {
+      return "";
+    } else if (param instanceof Date) {
+      return formatDate((Date) param);
+    } else if (param instanceof OffsetDateTime) {
+      return formatOffsetDateTime((OffsetDateTime) param);
+    } else if (param instanceof Collection) {
+      StringBuilder b = new StringBuilder();
+      for(Object o : (Collection)param) {
+        if(b.length() > 0) {
+          b.append(",");
+        }
+        b.append(String.valueOf(o));
+      }
+      return b.toString();
+    } else {
+      return String.valueOf(param);
+    }
+  }
+
+  /*
+    Format to {@code Pair} objects.
+  */
+  public List<Pair> parameterToPairs(String collectionFormat, String name, Object value){
+    List<Pair> params = new ArrayList<Pair>();
+
+    // preconditions
+    if (name == null || name.isEmpty() || value == null) return params;
+
+    Collection valueCollection = null;
+    if (value instanceof Collection) {
+      valueCollection = (Collection) value;
+    } else {
+      params.add(new Pair(name, parameterToString(value)));
+      return params;
+    }
+
+    if (valueCollection.isEmpty()){
+      return params;
+    }
+
+    // get the collection format
+    collectionFormat = (collectionFormat == null || collectionFormat.isEmpty() ? "csv" : collectionFormat); // default: csv
+
+    // create the params based on the collection format
+    if (collectionFormat.equals("multi")) {
+      for (Object item : valueCollection) {
+        params.add(new Pair(name, parameterToString(item)));
+      }
+
+      return params;
+    }
+
+    String delimiter = ",";
+
+    if (collectionFormat.equals("csv")) {
+      delimiter = ",";
+    } else if (collectionFormat.equals("ssv")) {
+      delimiter = " ";
+    } else if (collectionFormat.equals("tsv")) {
+      delimiter = "\t";
+    } else if (collectionFormat.equals("pipes")) {
+      delimiter = "|";
+    }
+
+    StringBuilder sb = new StringBuilder() ;
+    for (Object item : valueCollection) {
+      sb.append(delimiter);
+      sb.append(parameterToString(item));
+    }
+
+    params.add(new Pair(name, sb.substring(1)));
+
+    return params;
+  }
+
+  /**
+   * Check if the given MIME is a JSON MIME.
+   * JSON MIME examples:
+   *   application/json
+   *   application/json; charset=UTF8
+   *   APPLICATION/JSON
+   *   application/vnd.company+json
+   * @param mime MIME (Multipurpose Internet Mail Extensions)
+   * @return True if the given MIME is JSON, false otherwise.
+   */
+  public boolean isJsonMime(String mime) {
+    String jsonMime = "(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$";
+    return mime != null && (mime.matches(jsonMime) || mime.equals("*/*"));
+  }
+
+  /**
+   * Select the Accept header's value from the given accepts array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use all of them (joining into a string)
+   *
+   * @param accepts The accepts array to select from
+   * @return The Accept header to use. If the given array is empty,
+   *   null will be returned (not to set the Accept header explicitly).
+   */
+  public String selectHeaderAccept(String[] accepts) {
+    if (accepts.length == 0) {
+      return null;
+    }
+    for (String accept : accepts) {
+      if (isJsonMime(accept)) {
+        return accept;
+      }
+    }
+    return StringUtil.join(accepts, ",");
+  }
+
+  /**
+   * Select the Content-Type header's value from the given array:
+   *   if JSON exists in the given array, use it;
+   *   otherwise use the first one of the array.
+   *
+   * @param contentTypes The Content-Type array to select from
+   * @return The Content-Type header to use. If the given array is empty,
+   *   JSON will be used.
+   */
+  public String selectHeaderContentType(String[] contentTypes) {
+    if (contentTypes.length == 0) {
+      return "application/json";
+    }
+    for (String contentType : contentTypes) {
+      if (isJsonMime(contentType)) {
+        return contentType;
+      }
+    }
+    return contentTypes[0];
+  }
+
+  /**
+   * Escape the given string to be used as URL query value.
+   * @param str a {@code String} to escape
+   * @return the escaped version of the {@code String}
+   */
+  public String escapeString(String str) {
+    try {
+      return URLEncoder.encode(str, "utf8").replaceAll("\\+", "%20");
+    } catch (UnsupportedEncodingException e) {
+      return str;
+    }
+  }
+
+  /**
+   * Serialize the given Java object into string entity according the given
+   * Content-Type (only JSON is supported for now).
+   * @param obj the object to serialize
+   * @param formParams the form parameters
+   * @param contentType the content type
+   * @return an {@code Entity}
+   * @throws ApiException on failure to serialize
+   */
+  public Entity<?> serialize(Object obj, Map<String, Object> formParams, String contentType) throws ApiException {
+    Entity<?> entity = null;
+    if (contentType.startsWith("multipart/form-data")) {
+      MultipartFormDataOutput multipart = new MultipartFormDataOutput();
+      //MultiPart multiPart = new MultiPart();
+      for (Entry<String, Object> param: formParams.entrySet()) {
+        if (param.getValue() instanceof File) {
+          File file = (File) param.getValue();
+          try {
+            multipart.addFormData(param.getKey(),new FileInputStream(file),MediaType.APPLICATION_OCTET_STREAM_TYPE, file.getName());
+          } catch (FileNotFoundException e) {
+            throw new ApiException("Could not serialize multipart/form-data "+e.getMessage());
+          }
+        } else {
+          multipart.addFormData(param.getKey(),param.getValue().toString(),MediaType.APPLICATION_OCTET_STREAM_TYPE);
+        }
+      }
+      GenericEntity<MultipartFormDataOutput> genericEntity = new GenericEntity<MultipartFormDataOutput>(multipart) { };
+      entity = Entity.entity(genericEntity, MediaType.MULTIPART_FORM_DATA_TYPE);
+    } else if (contentType.startsWith("application/x-www-form-urlencoded")) {
+      Form form = new Form();
+      for (Entry<String, Object> param: formParams.entrySet()) {
+        form.param(param.getKey(), parameterToString(param.getValue()));
+      }
+      entity = Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED_TYPE);
+    } else {
+      // We let jersey handle the serialization
+      entity = Entity.entity(obj, contentType);
+    }
+    return entity;
+  }
+
+  /**
+   * Deserialize response body to Java object according to the Content-Type.
+   * @param <T> a Java type parameter
+   * @param response the response body to deserialize
+   * @param returnType a Java type to deserialize into
+   * @return a deserialized Java object
+   * @throws ApiException on failure to deserialize
+   */
+  public <T> T deserialize(Response response, GenericType<T> returnType) throws ApiException {
+    if (response == null || returnType == null) {
+      return null;
+    }
+
+    if ("byte[]".equals(returnType.toString())) {
+      // Handle binary response (byte array).
+      return (T) response.readEntity(byte[].class);
+    } else if (returnType.equals(File.class)) {
+      // Handle file downloading.
+      @SuppressWarnings("unchecked")
+      T file = (T) downloadFileFromResponse(response);
+      return file;
+    }
+
+    String contentType = null;
+    List<Object> contentTypes = response.getHeaders().get("Content-Type");
+    if (contentTypes != null && !contentTypes.isEmpty())
+      contentType = String.valueOf(contentTypes.get(0));
+    if (contentType == null)
+      throw new ApiException(500, "missing Content-Type in response");
+
+    return response.readEntity(returnType);
+  }
+
+  /**
+   * Download file from the given response.
+   * @param response a response
+   * @return a file from the given response
+   * @throws ApiException If fail to read file content from response and write to disk
+   */
+  public File downloadFileFromResponse(Response response) throws ApiException {
+    try {
+      File file = prepareDownloadFile(response);
+      Files.copy(response.readEntity(InputStream.class), file.toPath());
+      return file;
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+  }
+
+  public File prepareDownloadFile(Response response) throws IOException {
+    String filename = null;
+    String contentDisposition = (String) response.getHeaders().getFirst("Content-Disposition");
+    if (contentDisposition != null && !"".equals(contentDisposition)) {
+      // Get filename from the Content-Disposition header.
+      Pattern pattern = Pattern.compile("filename=['\"]?([^'\"\\s]+)['\"]?");
+      Matcher matcher = pattern.matcher(contentDisposition);
+      if (matcher.find())
+        filename = matcher.group(1);
+    }
+
+    String prefix = null;
+    String suffix = null;
+    if (filename == null) {
+      prefix = "download-";
+      suffix = "";
+    } else {
+      int pos = filename.lastIndexOf(".");
+      if (pos == -1) {
+        prefix = filename + "-";
+      } else {
+        prefix = filename.substring(0, pos) + "-";
+        suffix = filename.substring(pos);
+      }
+      // Files.createTempFile requires the prefix to be at least three characters long
+      if (prefix.length() < 3)
+        prefix = "download-";
+    }
+
+    if (tempFolderPath == null)
+      return Files.createTempFile(prefix, suffix).toFile();
+    else
+      return Files.createTempFile(Paths.get(tempFolderPath), prefix, suffix).toFile();
+  }
+
+  /**
+   * Invoke API by sending HTTP request with the given options.
+   *
+   * @param <T> a Java type parameter
+   * @param path The sub-path of the HTTP URL
+   * @param method The request method, one of "GET", "POST", "PUT", "HEAD" and "DELETE"
+   * @param queryParams The query parameters
+   * @param body The request body object
+   * @param headerParams The header parameters
+   * @param cookieParams The cookie parameters
+   * @param formParams The form parameters
+   * @param accept The request's Accept header
+   * @param contentType The request's Content-Type header
+   * @param authNames The authentications to apply
+   * @param returnType The return type into which to deserialize the response
+   * @return The response body in type of string
+   * @throws ApiException if the invocation failed
+   */
+  public <T> T invokeAPI(String path, String method, List<Pair> queryParams, Object body, Map<String, String> headerParams, Map<String, String> cookieParams, Map<String, Object> formParams, String accept, String contentType, String[] authNames, GenericType<T> returnType) throws ApiException {
+    updateParamsForAuth(authNames, queryParams, headerParams, cookieParams);
+
+    // Not using `.target(this.basePath).path(path)` below,
+    // to support (constant) query string in `path`, e.g. "/posts?draft=1"
+    WebTarget target = httpClient.target(this.basePath + path);
+
+    if (queryParams != null) {
+      for (Pair queryParam : queryParams) {
+        if (queryParam.getValue() != null) {
+          target = target.queryParam(queryParam.getName(), queryParam.getValue());
+        }
+      }
+    }
+
+    Invocation.Builder invocationBuilder = target.request().accept(accept);
+
+    for (Entry<String, String> headerParamsEntry : headerParams.entrySet()) {
+      String value = headerParamsEntry.getValue();
+      if (value != null) {
+        invocationBuilder = invocationBuilder.header(headerParamsEntry.getKey(), value);
+      }
+    }
+
+    for (Entry<String, String> defaultHeaderEntry: defaultHeaderMap.entrySet()) {
+      if (!headerParams.containsKey(defaultHeaderEntry.getKey())) {
+        String value = defaultHeaderEntry.getValue();
+        if (value != null) {
+          invocationBuilder = invocationBuilder.header(defaultHeaderEntry.getKey(), value);
+        }
+      }
+    }
+
+    for (Entry<String, String> cookieParamsEntry : cookieParams.entrySet()) {
+      String value = cookieParamsEntry.getValue();
+      if (value != null) {
+        invocationBuilder = invocationBuilder.cookie(cookieParamsEntry.getKey(), value);
+      }
+    }
+
+    for (Entry<String, String> defaultCookieEntry: defaultHeaderMap.entrySet()) {
+      if (!cookieParams.containsKey(defaultCookieEntry.getKey())) {
+        String value = defaultCookieEntry.getValue();
+        if (value != null) {
+          invocationBuilder = invocationBuilder.cookie(defaultCookieEntry.getKey(), value);
+        }
+      }
+    }
+
+    Entity<?> entity = serialize(body, formParams, contentType);
+
+    try (Response response = invoke(invocationBuilder, method, entity)) {
+      statusCode = response.getStatusInfo().getStatusCode();
+      responseHeaders = buildResponseHeaders(response);
+
+      if (response.getStatus() == Status.NO_CONTENT.getStatusCode()) {
+        return null;
+      } else if (response.getStatusInfo().getFamily().equals(Status.Family.SUCCESSFUL)) {
+        if (returnType == null)
+          return null;
+        else
+          return deserialize(response, returnType);
+      } else {
+        String message = "error";
+        String respBody = null;
+        if (response.hasEntity()) {
+          try {
+            respBody = String.valueOf(response.readEntity(String.class));
+            message = respBody;
+          } catch (RuntimeException e) {
+            // e.printStackTrace();
+          }
+        }
+        throw new ApiException(
+          response.getStatus(),
+          message,
+          buildResponseHeaders(response),
+          respBody);
+      }
+    }
+  }
+
+  private Response invoke(Invocation.Builder invocationBuilder, String method, Entity<?> entity) throws ApiException {
+    Response response = null;
+
+    if ("GET".equals(method)) {
+      response = invocationBuilder.get();
+    } else if ("POST".equals(method)) {
+      response = invocationBuilder.post(entity);
+    } else if ("PUT".equals(method)) {
+      response = invocationBuilder.put(entity);
+    } else if ("DELETE".equals(method)) {
+      response = invocationBuilder.method("DELETE", entity);
+    } else if ("PATCH".equals(method)) {
+      response = invocationBuilder.method("PATCH", entity);
+    } else if ("HEAD".equals(method)) {
+      response = invocationBuilder.head();
+    } else if ("OPTIONS".equals(method)) {
+      response = invocationBuilder.options();
+    } else if ("TRACE".equals(method)) {
+      response = invocationBuilder.trace();
+    } else {
+      throw new ApiException(500, "unknown method type " + method);
+    }
+
+    return response;
+  }
+
+  /**
+   * Build the Client used to make HTTP requests.
+   */
+  private Client buildHttpClient(boolean debugging) {
+    final ClientConfiguration clientConfig = new ClientConfiguration(ResteasyProviderFactory.getInstance());
+    clientConfig.register(json);
+    if(debugging){
+      clientConfig.register(Logger.class);
+    }
+    return ClientBuilder.newClient(clientConfig);
+  }
+  private Map<String, List<String>> buildResponseHeaders(Response response) {
+    Map<String, List<String>> responseHeaders = new HashMap<String, List<String>>();
+    for (Entry<String, List<Object>> entry: response.getHeaders().entrySet()) {
+      List<Object> values = entry.getValue();
+      List<String> headers = new ArrayList<String>();
+      for (Object o : values) {
+        headers.add(String.valueOf(o));
+      }
+      responseHeaders.put(entry.getKey(), headers);
+    }
+    return responseHeaders;
+  }
+
+  /**
+   * Update query and header parameters based on authentication settings.
+   *
+   * @param authNames The authentications to apply
+   */
+  private void updateParamsForAuth(String[] authNames, List<Pair> queryParams, Map<String, String> headerParams, Map<String, String> cookieParams) {
+    for (String authName : authNames) {
+      Authentication auth = authentications.get(authName);
+      if (auth == null) throw new RuntimeException("Authentication undefined: " + authName);
+      auth.applyToParams(queryParams, headerParams, cookieParams);
+    }
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/ApiException.java

@@ -0,0 +1,100 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+import java.util.Map;
+import java.util.List;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class ApiException extends Exception {
+    private int code = 0;
+    private Map<String, List<String>> responseHeaders = null;
+    private String responseBody = null;
+
+    public ApiException() {}
+
+    public ApiException(Throwable throwable) {
+        super(throwable);
+    }
+
+    public ApiException(String message) {
+        super(message);
+    }
+
+    public ApiException(String message, Throwable throwable, int code, Map<String, List<String>> responseHeaders, String responseBody) {
+        super(message, throwable);
+        this.code = code;
+        this.responseHeaders = responseHeaders;
+        this.responseBody = responseBody;
+    }
+
+    public ApiException(String message, int code, Map<String, List<String>> responseHeaders, String responseBody) {
+        this(message, (Throwable) null, code, responseHeaders, responseBody);
+    }
+
+    public ApiException(String message, Throwable throwable, int code, Map<String, List<String>> responseHeaders) {
+        this(message, throwable, code, responseHeaders, null);
+    }
+
+    public ApiException(int code, Map<String, List<String>> responseHeaders, String responseBody) {
+        this("Response Code: " + code + " Response Body: " + responseBody, (Throwable) null, code, responseHeaders, responseBody);
+    }
+
+    public ApiException(int code, String message) {
+        super(message);
+        this.code = code;
+    }
+
+    public ApiException(int code, String message, Map<String, List<String>> responseHeaders, String responseBody) {
+        this(code, message);
+        this.responseHeaders = responseHeaders;
+        this.responseBody = responseBody;
+    }
+
+    /**
+     * Get the HTTP status code.
+     *
+     * @return HTTP status code
+     */
+    public int getCode() {
+        return code;
+    }
+
+    /**
+     * Get the HTTP response headers.
+     *
+     * @return A map of list of string
+     */
+    public Map<String, List<String>> getResponseHeaders() {
+        return responseHeaders;
+    }
+
+    /**
+     * Get the HTTP response body.
+     *
+     * @return Response body in the form of string
+     */
+    public String getResponseBody() {
+        return responseBody;
+    }
+
+    @Override
+    public String toString() {
+        return "ApiException{" +
+                "code=" + code +
+                ", responseHeaders=" + responseHeaders +
+                ", responseBody='" + responseBody + '\'' +
+                '}';
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/Configuration.java

@@ -0,0 +1,41 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class Configuration {
+    public static final String VERSION = "1.0.0";
+
+    private static ApiClient defaultApiClient = new ApiClient();
+
+    /**
+     * Get the default API client, which would be used when creating API
+     * instances without providing an API client.
+     *
+     * @return Default API client
+     */
+    public static ApiClient getDefaultApiClient() {
+        return defaultApiClient;
+    }
+
+    /**
+     * Set the default API client, which would be used when creating API
+     * instances without providing an API client.
+     *
+     * @param apiClient API client
+     */
+    public static void setDefaultApiClient(ApiClient apiClient) {
+        defaultApiClient = apiClient;
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/JSON.java

@@ -0,0 +1,42 @@
+package org.openapitools.client;
+
+import com.fasterxml.jackson.annotation.*;
+import com.fasterxml.jackson.databind.*;
+import org.openapitools.jackson.nullable.JsonNullableModule;
+import com.fasterxml.jackson.datatype.jsr310.*;
+
+import java.text.DateFormat;
+
+import javax.ws.rs.ext.ContextResolver;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class JSON implements ContextResolver<ObjectMapper> {
+  private ObjectMapper mapper;
+
+  public JSON() {
+    mapper = new ObjectMapper();
+    mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+    mapper.configure(DeserializationFeature.FAIL_ON_INVALID_SUBTYPE, false);
+    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+    mapper.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
+    mapper.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
+    mapper.setDateFormat(new RFC3339DateFormat());
+    JsonNullableModule jnm = new JsonNullableModule();
+    mapper.registerModule(jnm);
+    mapper.registerModule(new JavaTimeModule());
+  }
+
+  /**
+   * Set the date format for JSON (de)serialization with Date properties.
+   * @param dateFormat the date format to set
+   */
+  public void setDateFormat(DateFormat dateFormat) {
+    mapper.setDateFormat(dateFormat);
+  }
+
+  @Override
+  public ObjectMapper getContext(Class<?> type) {
+    return mapper;
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/JavaTimeFormatter.java

@@ -0,0 +1,64 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+import java.time.OffsetDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+
+/**
+ * Class that add parsing/formatting support for Java 8+ {@code OffsetDateTime} class.
+ * It's generated for java clients when {@code AbstractJavaCodegen#dateLibrary} specified as {@code java8}.
+ */
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class JavaTimeFormatter {
+
+    private DateTimeFormatter offsetDateTimeFormatter = DateTimeFormatter.ISO_OFFSET_DATE_TIME;
+
+    /**
+     * Get the date format used to parse/format {@code OffsetDateTime} parameters.
+     * @return DateTimeFormatter
+     */
+    public DateTimeFormatter getOffsetDateTimeFormatter() {
+        return offsetDateTimeFormatter;
+    }
+
+    /**
+     * Set the date format used to parse/format {@code OffsetDateTime} parameters.
+     * @param offsetDateTimeFormatter {@code DateTimeFormatter}
+     */
+    public void setOffsetDateTimeFormatter(DateTimeFormatter offsetDateTimeFormatter) {
+        this.offsetDateTimeFormatter = offsetDateTimeFormatter;
+    }
+
+    /**
+     * Parse the given string into {@code OffsetDateTime} object.
+     * @param str String
+     * @return {@code OffsetDateTime}
+     */
+    public OffsetDateTime parseOffsetDateTime(String str) {
+        try {
+            return OffsetDateTime.parse(str, offsetDateTimeFormatter);
+        } catch (DateTimeParseException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    /**
+     * Format the given {@code OffsetDateTime} object into string.
+     * @param offsetDateTime {@code OffsetDateTime}
+     * @return {@code OffsetDateTime} in string format
+     */
+    public String formatOffsetDateTime(OffsetDateTime offsetDateTime) {
+        return offsetDateTimeFormatter.format(offsetDateTime);
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/Pair.java

@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class Pair {
+    private String name = "";
+    private String value = "";
+
+    public Pair (String name, String value) {
+        setName(name);
+        setValue(value);
+    }
+
+    private void setName(String name) {
+        if (!isValidString(name)) {
+            return;
+        }
+
+        this.name = name;
+    }
+
+    private void setValue(String value) {
+        if (!isValidString(value)) {
+            return;
+        }
+
+        this.value = value;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+
+    private boolean isValidString(String arg) {
+        if (arg == null) {
+            return false;
+        }
+
+        return true;
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/RFC3339DateFormat.java

@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+import com.fasterxml.jackson.databind.util.StdDateFormat;
+
+import java.text.DateFormat;
+import java.text.FieldPosition;
+import java.text.ParsePosition;
+import java.util.Date;
+import java.text.DecimalFormat;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+
+public class RFC3339DateFormat extends DateFormat {
+  private static final long serialVersionUID = 1L;
+  private static final TimeZone TIMEZONE_Z = TimeZone.getTimeZone("UTC");
+
+  private final StdDateFormat fmt = new StdDateFormat()
+          .withTimeZone(TIMEZONE_Z)
+          .withColonInTimeZone(true);
+
+  public RFC3339DateFormat() {
+    this.calendar = new GregorianCalendar();
+    this.numberFormat = new DecimalFormat();
+  }
+
+  @Override
+  public Date parse(String source) {
+    return parse(source, new ParsePosition(0));
+  }
+
+  @Override
+  public Date parse(String source, ParsePosition pos) {
+    return fmt.parse(source, pos);
+  }
+
+  @Override
+  public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
+    return fmt.format(date, toAppendTo, fieldPosition);
+  }
+
+  @Override
+  public Object clone() {
+    return super.clone();
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/ServerConfiguration.java

@@ -0,0 +1,58 @@
+package org.openapitools.client;
+
+import java.util.Map;
+
+/**
+ * Representing a Server configuration.
+ */
+public class ServerConfiguration {
+    public String URL;
+    public String description;
+    public Map<String, ServerVariable> variables;
+
+    /**
+     * @param URL A URL to the target host.
+     * @param description A description of the host designated by the URL.
+     * @param variables A map between a variable name and its value. The value is used for substitution in the server's URL template.
+     */
+    public ServerConfiguration(String URL, String description, Map<String, ServerVariable> variables) {
+        this.URL = URL;
+        this.description = description;
+        this.variables = variables;
+    }
+
+    /**
+     * Format URL template using given variables.
+     *
+     * @param variables A map between a variable name and its value.
+     * @return Formatted URL.
+     */
+    public String URL(Map<String, String> variables) {
+        String url = this.URL;
+
+        // go through variables and replace placeholders
+        for (Map.Entry<String, ServerVariable> variable: this.variables.entrySet()) {
+            String name = variable.getKey();
+            ServerVariable serverVariable = variable.getValue();
+            String value = serverVariable.defaultValue;
+
+            if (variables != null && variables.containsKey(name)) {
+                value = variables.get(name);
+                if (serverVariable.enumValues.size() > 0 && !serverVariable.enumValues.contains(value)) {
+                    throw new IllegalArgumentException("The variable " + name + " in the server URL has invalid value " + value + ".");
+                }
+            }
+            url = url.replace("{" + name + "}", value);
+        }
+        return url;
+    }
+
+    /**
+     * Format URL template using default server variables.
+     *
+     * @return Formatted URL.
+     */
+    public String URL() {
+        return URL(null);
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/ServerVariable.java

@@ -0,0 +1,23 @@
+package org.openapitools.client;
+
+import java.util.HashSet;
+
+/**
+ * Representing a Server Variable for server URL template substitution.
+ */
+public class ServerVariable {
+    public String description;
+    public String defaultValue;
+    public HashSet<String> enumValues = null;
+
+    /**
+     * @param description A description for the server variable.
+     * @param defaultValue The default value to use for substitution.
+     * @param enumValues An enumeration of string values to be used if the substitution options are from a limited set.
+     */
+    public ServerVariable(String description, String defaultValue, HashSet<String> enumValues) {
+        this.description = description;
+        this.defaultValue = defaultValue;
+        this.enumValues = enumValues;
+    }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/StringUtil.java

@@ -0,0 +1,83 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class StringUtil {
+  /**
+   * Check if the given array contains the given value (with case-insensitive comparison).
+   *
+   * @param array The array
+   * @param value The value to search
+   * @return true if the array contains the value
+   */
+  public static boolean containsIgnoreCase(String[] array, String value) {
+    for (String str : array) {
+      if (value == null && str == null) {
+        return true;
+      }
+      if (value != null && value.equalsIgnoreCase(str)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Join an array of strings with the given separator.
+   * <p>
+   * Note: This might be replaced by utility method from commons-lang or guava someday
+   * if one of those libraries is added as dependency.
+   * </p>
+   *
+   * @param array     The array of strings
+   * @param separator The separator
+   * @return the resulting string
+   */
+  public static String join(String[] array, String separator) {
+    int len = array.length;
+    if (len == 0) {
+      return "";
+    }
+
+    StringBuilder out = new StringBuilder();
+    out.append(array[0]);
+    for (int i = 1; i < len; i++) {
+      out.append(separator).append(array[i]);
+    }
+    return out.toString();
+  }
+
+  /**
+   * Join a list of strings with the given separator.
+   *
+   * @param list      The list of strings
+   * @param separator The separator
+   * @return the resulting string
+   */
+  public static String join(Collection<String> list, String separator) {
+    Iterator<String> iterator = list.iterator();
+    StringBuilder out = new StringBuilder();
+    if (iterator.hasNext()) {
+      out.append(iterator.next());
+    }
+    while (iterator.hasNext()) {
+      out.append(separator).append(iterator.next());
+    }
+    return out.toString();
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/AnotherFakeApi.java

@@ -0,0 +1,80 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import org.openapitools.client.model.Client;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class AnotherFakeApi {
+  private ApiClient apiClient;
+
+  public AnotherFakeApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public AnotherFakeApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * To test special tags
+   * To test special tags and operation ID starting with number
+   * @param client client model (required)
+   * @return a {@code Client}
+   * @throws ApiException if fails to make API call
+   */
+  public Client call123testSpecialTags(Client client) throws ApiException {
+    Object localVarPostBody = client;
+    
+    // verify the required parameter 'client' is set
+    if (client == null) {
+      throw new ApiException(400, "Missing the required parameter 'client' when calling call123testSpecialTags");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/another-fake/dummy".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<Client> localVarReturnType = new GenericType<Client>() {};
+    return apiClient.invokeAPI(localVarPath, "PATCH", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/DefaultApi.java

@@ -0,0 +1,74 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import org.openapitools.client.model.FooGetDefaultResponse;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DefaultApi {
+  private ApiClient apiClient;
+
+  public DefaultApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public DefaultApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * 
+   * 
+   * @return a {@code FooGetDefaultResponse}
+   * @throws ApiException if fails to make API call
+   */
+  public FooGetDefaultResponse fooGet() throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/foo".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<FooGetDefaultResponse> localVarReturnType = new GenericType<FooGetDefaultResponse>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java

@@ -0,0 +1,80 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import org.openapitools.client.model.Client;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class FakeClassnameTags123Api {
+  private ApiClient apiClient;
+
+  public FakeClassnameTags123Api() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public FakeClassnameTags123Api(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * To test class name in snake case
+   * To test class name in snake case
+   * @param client client model (required)
+   * @return a {@code Client}
+   * @throws ApiException if fails to make API call
+   */
+  public Client testClassname(Client client) throws ApiException {
+    Object localVarPostBody = client;
+    
+    // verify the required parameter 'client' is set
+    if (client == null) {
+      throw new ApiException(400, "Missing the required parameter 'client' when calling testClassname");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/fake_classname_test".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "api_key_query" };
+
+    GenericType<Client> localVarReturnType = new GenericType<Client>() {};
+    return apiClient.invokeAPI(localVarPath, "PATCH", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/PetApi.java

@@ -0,0 +1,458 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import java.io.File;
+import org.openapitools.client.model.ModelApiResponse;
+import org.openapitools.client.model.Pet;
+import java.util.Set;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class PetApi {
+  private ApiClient apiClient;
+
+  public PetApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public PetApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * Add a new pet to the store
+   * 
+   * @param pet Pet object that needs to be added to the store (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void addPet(Pet pet) throws ApiException {
+    Object localVarPostBody = pet;
+    
+    // verify the required parameter 'pet' is set
+    if (pet == null) {
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling addPet");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json", "application/xml"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+
+    apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Deletes a pet
+   * 
+   * @param petId Pet id to delete (required)
+   * @param apiKey  (optional)
+   * @throws ApiException if fails to make API call
+   */
+  public void deletePet(Long petId, String apiKey) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'petId' is set
+    if (petId == null) {
+      throw new ApiException(400, "Missing the required parameter 'petId' when calling deletePet");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/{petId}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 (apiKey != null)
+      localVarHeaderParams.put("api_key", apiClient.parameterToString(apiKey));
+
+    
+    
+    final String[] localVarAccepts = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+
+    apiClient.invokeAPI(localVarPath, "DELETE", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Finds Pets by status
+   * Multiple status values can be provided with comma separated strings
+   * @param status Status values that need to be considered for filter (required)
+   * @return a {@code List<Pet>}
+   * @throws ApiException if fails to make API call
+   */
+  public List<Pet> findPetsByStatus(List<String> status) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'status' is set
+    if (status == null) {
+      throw new ApiException(400, "Missing the required parameter 'status' when calling findPetsByStatus");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/findByStatus".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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.parameterToPairs("csv", "status", status));
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+    GenericType<List<Pet>> localVarReturnType = new GenericType<List<Pet>>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Finds Pets by tags
+   * Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+   * @param tags Tags to filter by (required)
+   * @return a {@code Set<Pet>}
+   * @throws ApiException if fails to make API call
+   * @deprecated
+   */
+  @Deprecated
+  public Set<Pet> findPetsByTags(Set<String> tags) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'tags' is set
+    if (tags == null) {
+      throw new ApiException(400, "Missing the required parameter 'tags' when calling findPetsByTags");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/findByTags".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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.parameterToPairs("csv", "tags", tags));
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+    GenericType<Set<Pet>> localVarReturnType = new GenericType<Set<Pet>>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Find pet by ID
+   * Returns a single pet
+   * @param petId ID of pet to return (required)
+   * @return a {@code Pet}
+   * @throws ApiException if fails to make API call
+   */
+  public Pet getPetById(Long petId) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'petId' is set
+    if (petId == null) {
+      throw new ApiException(400, "Missing the required parameter 'petId' when calling getPetById");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/{petId}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "api_key" };
+
+    GenericType<Pet> localVarReturnType = new GenericType<Pet>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Update an existing pet
+   * 
+   * @param pet Pet object that needs to be added to the store (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void updatePet(Pet pet) throws ApiException {
+    Object localVarPostBody = pet;
+    
+    // verify the required parameter 'pet' is set
+    if (pet == null) {
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling updatePet");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json", "application/xml"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+
+    apiClient.invokeAPI(localVarPath, "PUT", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Updates a pet in the store with form data
+   * 
+   * @param petId ID of pet that needs to be updated (required)
+   * @param name Updated name of the pet (optional)
+   * @param status Updated status of the pet (optional)
+   * @throws ApiException if fails to make API call
+   */
+  public void updatePetWithForm(Long petId, String name, String status) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'petId' is set
+    if (petId == null) {
+      throw new ApiException(400, "Missing the required parameter 'petId' when calling updatePetWithForm");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/{petId}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 (name != null)
+      localVarFormParams.put("name", name);
+if (status != null)
+      localVarFormParams.put("status", status);
+
+    final String[] localVarAccepts = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/x-www-form-urlencoded"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+
+    apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * uploads an image
+   * 
+   * @param petId ID of pet to update (required)
+   * @param additionalMetadata Additional data to pass to server (optional)
+   * @param _file file to upload (optional)
+   * @return a {@code String}
+   * @throws ApiException if fails to make API call
+   */
+  public String uploadFile(Long petId, String additionalMetadata, File _file) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'petId' is set
+    if (petId == null) {
+      throw new ApiException(400, "Missing the required parameter 'petId' when calling uploadFile");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/pet/{petId}/uploadImage".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 (additionalMetadata != null)
+      localVarFormParams.put("additionalMetadata", additionalMetadata);
+if (_file != null)
+      localVarFormParams.put("file", _file);
+
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "multipart/form-data"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+    GenericType<String> localVarReturnType = new GenericType<String>() {};
+    return apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * uploads an image (required)
+   * 
+   * @param petId ID of pet to update (required)
+   * @param requiredFile file to upload (required)
+   * @param additionalMetadata Additional data to pass to server (optional)
+   * @return a {@code ModelApiResponse}
+   * @throws ApiException if fails to make API call
+   */
+  public ModelApiResponse uploadFileWithRequiredFile(Long petId, File requiredFile, String additionalMetadata) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'petId' is set
+    if (petId == null) {
+      throw new ApiException(400, "Missing the required parameter 'petId' when calling uploadFileWithRequiredFile");
+    }
+    
+    // verify the required parameter 'requiredFile' is set
+    if (requiredFile == null) {
+      throw new ApiException(400, "Missing the required parameter 'requiredFile' when calling uploadFileWithRequiredFile");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/fake/{petId}/uploadImageWithRequiredFile".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "petId" + "\\}", apiClient.escapeString(petId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 (additionalMetadata != null)
+      localVarFormParams.put("additionalMetadata", additionalMetadata);
+if (requiredFile != null)
+      localVarFormParams.put("requiredFile", requiredFile);
+
+    final String[] localVarAccepts = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "multipart/form-data"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "petstore_auth" };
+
+    GenericType<ModelApiResponse> localVarReturnType = new GenericType<ModelApiResponse>() {};
+    return apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/StoreApi.java

@@ -0,0 +1,204 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import org.openapitools.client.model.Order;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class StoreApi {
+  private ApiClient apiClient;
+
+  public StoreApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public StoreApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * Delete purchase order by ID
+   * For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
+   * @param orderId ID of the order that needs to be deleted (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void deleteOrder(String orderId) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'orderId' is set
+    if (orderId == null) {
+      throw new ApiException(400, "Missing the required parameter 'orderId' when calling deleteOrder");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/store/order/{order_id}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "order_id" + "\\}", apiClient.escapeString(orderId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "DELETE", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Returns pet inventories by status
+   * Returns a map of status codes to quantities
+   * @return a {@code Map<String, Integer>}
+   * @throws ApiException if fails to make API call
+   */
+  public Map<String, Integer> getInventory() throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/store/inventory".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "api_key" };
+
+    GenericType<Map<String, Integer>> localVarReturnType = new GenericType<Map<String, Integer>>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Find purchase order by ID
+   * For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+   * @param orderId ID of pet that needs to be fetched (required)
+   * @return a {@code Order}
+   * @throws ApiException if fails to make API call
+   */
+  public Order getOrderById(Long orderId) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'orderId' is set
+    if (orderId == null) {
+      throw new ApiException(400, "Missing the required parameter 'orderId' when calling getOrderById");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/store/order/{order_id}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "order_id" + "\\}", apiClient.escapeString(orderId.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<Order> localVarReturnType = new GenericType<Order>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Place an order for a pet
+   * 
+   * @param order order placed for purchasing the pet (required)
+   * @return a {@code Order}
+   * @throws ApiException if fails to make API call
+   */
+  public Order placeOrder(Order order) throws ApiException {
+    Object localVarPostBody = order;
+    
+    // verify the required parameter 'order' is set
+    if (order == null) {
+      throw new ApiException(400, "Missing the required parameter 'order' when calling placeOrder");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/store/order".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<Order> localVarReturnType = new GenericType<Order>() {};
+    return apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/api/UserApi.java

@@ -0,0 +1,387 @@
+package org.openapitools.client.api;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.Pair;
+
+import javax.ws.rs.core.GenericType;
+
+import java.time.OffsetDateTime;
+import org.openapitools.client.model.User;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class UserApi {
+  private ApiClient apiClient;
+
+  public UserApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public UserApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * Create user
+   * This can only be done by the logged in user.
+   * @param user Created user object (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void createUser(User user) throws ApiException {
+    Object localVarPostBody = user;
+    
+    // verify the required parameter 'user' is set
+    if (user == null) {
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUser");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Creates list of users with given input array
+   * 
+   * @param user List of user object (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void createUsersWithArrayInput(List<User> user) throws ApiException {
+    Object localVarPostBody = user;
+    
+    // verify the required parameter 'user' is set
+    if (user == null) {
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUsersWithArrayInput");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/createWithArray".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Creates list of users with given input array
+   * 
+   * @param user List of user object (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void createUsersWithListInput(List<User> user) throws ApiException {
+    Object localVarPostBody = user;
+    
+    // verify the required parameter 'user' is set
+    if (user == null) {
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUsersWithListInput");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/createWithList".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "POST", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Delete user
+   * This can only be done by the logged in user.
+   * @param username The name that needs to be deleted (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void deleteUser(String username) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'username' is set
+    if (username == null) {
+      throw new ApiException(400, "Missing the required parameter 'username' when calling deleteUser");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/{username}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "DELETE", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Get user by user name
+   * 
+   * @param username The name that needs to be fetched. Use user1 for testing. (required)
+   * @return a {@code User}
+   * @throws ApiException if fails to make API call
+   */
+  public User getUserByName(String username) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'username' is set
+    if (username == null) {
+      throw new ApiException(400, "Missing the required parameter 'username' when calling getUserByName");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/{username}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<User> localVarReturnType = new GenericType<User>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Logs user into the system
+   * 
+   * @param username The user name for login (required)
+   * @param password The password for login in clear text (required)
+   * @return a {@code String}
+   * @throws ApiException if fails to make API call
+   */
+  public String loginUser(String username, String password) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // verify the required parameter 'username' is set
+    if (username == null) {
+      throw new ApiException(400, "Missing the required parameter 'username' when calling loginUser");
+    }
+    
+    // verify the required parameter 'password' is set
+    if (password == null) {
+      throw new ApiException(400, "Missing the required parameter 'password' when calling loginUser");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/login".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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.parameterToPairs("", "username", username));
+    localVarQueryParams.addAll(apiClient.parameterToPairs("", "password", password));
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      "application/xml", "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    GenericType<String> localVarReturnType = new GenericType<String>() {};
+    return apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+      }
+  /**
+   * Logs out current logged in user session
+   * 
+   * @throws ApiException if fails to make API call
+   */
+  public void logoutUser() throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/user/logout".replaceAll("\\{format\\}","json");
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "GET", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+  /**
+   * Updated user
+   * This can only be done by the logged in user.
+   * @param username name that need to be deleted (required)
+   * @param user Updated user object (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void updateUser(String username, User user) throws ApiException {
+    Object localVarPostBody = user;
+    
+    // verify the required parameter 'username' is set
+    if (username == null) {
+      throw new ApiException(400, "Missing the required parameter 'username' when calling updateUser");
+    }
+    
+    // verify the required parameter 'user' is set
+    if (user == null) {
+      throw new ApiException(400, "Missing the required parameter 'user' when calling updateUser");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/user/{username}".replaceAll("\\{format\\}","json")
+      .replaceAll("\\{" + "username" + "\\}", apiClient.escapeString(username.toString()));
+
+    // query params
+    List<Pair> localVarQueryParams = 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 = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+
+    apiClient.invokeAPI(localVarPath, "PUT", localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarCookieParams, localVarFormParams, localVarAccept, localVarContentType, localVarAuthNames, null);
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/auth/ApiKeyAuth.java

@@ -0,0 +1,77 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client.auth;
+
+import org.openapitools.client.Pair;
+
+import java.util.Map;
+import java.util.List;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class ApiKeyAuth implements Authentication {
+  private final String location;
+  private final String paramName;
+
+  private String apiKey;
+  private String apiKeyPrefix;
+
+  public ApiKeyAuth(String location, String paramName) {
+    this.location = location;
+    this.paramName = paramName;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getParamName() {
+    return paramName;
+  }
+
+  public String getApiKey() {
+    return apiKey;
+  }
+
+  public void setApiKey(String apiKey) {
+    this.apiKey = apiKey;
+  }
+
+  public String getApiKeyPrefix() {
+    return apiKeyPrefix;
+  }
+
+  public void setApiKeyPrefix(String apiKeyPrefix) {
+    this.apiKeyPrefix = apiKeyPrefix;
+  }
+
+  @Override
+  public void applyToParams(List<Pair> queryParams, Map<String, String> headerParams, Map<String, String> cookieParams) {
+    if (apiKey == null) {
+      return;
+    }
+    String value;
+    if (apiKeyPrefix != null) {
+      value = apiKeyPrefix + " " + apiKey;
+    } else {
+      value = apiKey;
+    }
+    if ("query".equals(location)) {
+      queryParams.add(new Pair(paramName, value));
+    } else if ("header".equals(location)) {
+      headerParams.put(paramName, value);
+    } else if ("cookie".equals(location)) {
+      cookieParams.put(paramName, value);
+    }
+  }
+}

samples/client/petstore/java/resteasy-echo/src/main/java/org/openapitools/client/auth/Authentication.java

@@ -0,0 +1,30 @@
+/*
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * 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.client.auth;
+
+import org.openapitools.client.Pair;
+
+import java.util.Map;
+import java.util.List;
+
+public interface Authentication {
+    /**
+     * Apply authentication settings to header and query params.
+     *
+     * @param queryParams List of query parameters
+     * @param headerParams Map of header parameters
+     * @param cookieParams Map of cookie parameters
+     */
+    void applyToParams(List<Pair> queryParams, Map<String, String> headerParams, Map<String, String> cookieParams);
+}