[Java] [Microprofile] Add Json-B polymorphism type info annotations (#20164)

* [Microprofile] Add Json-B polymorphism annotations

* [Microprofile] Set openApiNullable in configs to false

* [Microprofile] Bump JSON Bind version to 3.0

* [Microprofile] Only apply JSON-B polymorphism for MP 3.0

* Update samples

* [Microprofile] Update documentation/configs for openApiNullable

* Update docs

samples/client/petstore/java/microprofile-rest-client/.openapi-generator/FILES

@@ -1,22 +1,118 @@
 README.md
+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
 pom.xml
+src/main/java/org/openapitools/client/api/AnotherFakeApi.java
 src/main/java/org/openapitools/client/api/ApiException.java
 src/main/java/org/openapitools/client/api/ApiExceptionMapper.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/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/microprofile-rest-client/README.md

@@ -1,6 +1,6 @@
 # OpenAPI Petstore - MicroProfile Rest Client & MicroProfile Server
 
-This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
 
 ## Overview
 This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/AllOfWithSingleRef.md

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

samples/client/petstore/java/microprofile-rest-client/docs/Animal.md

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

samples/client/petstore/java/microprofile-rest-client/docs/AnotherFakeApi.md

@@ -0,0 +1,75 @@
+# AnotherFakeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| 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://petstore.swagger.io:80/v2");
+
+        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/microprofile-rest-client/docs/ArrayOfArrayOfNumberOnly.md

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

samples/client/petstore/java/microprofile-rest-client/docs/ArrayOfNumberOnly.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/docs/Cat.md

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

samples/client/petstore/java/microprofile-rest-client/docs/Category.md

@@ -2,14 +2,13 @@
 
 # Category
 
-A category for a pet
 
 ## Properties
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
 |**id** | **Long** |  |  [optional] |
-|**name** | **String** |  |  [optional] |
+|**name** | **String** |  |  |
 
 
 

samples/client/petstore/java/microprofile-rest-client/docs/ChildWithNullable.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/Client.md

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

samples/client/petstore/java/microprofile-rest-client/docs/DefaultApi.md

@@ -0,0 +1,69 @@
+# DefaultApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| 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://petstore.swagger.io:80/v2");
+
+        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 |
+|-------------|-------------|------------------|
+| **200** | response |  -  |
+

samples/client/petstore/java/microprofile-rest-client/docs/DeprecatedObject.md

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

samples/client/petstore/java/microprofile-rest-client/docs/Dog.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/EnumClass.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/docs/FakeClassnameTags123Api.md

@@ -0,0 +1,82 @@
+# FakeClassnameTags123Api
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| 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://petstore.swagger.io:80/v2");
+        
+        // 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/microprofile-rest-client/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/microprofile-rest-client/docs/Foo.md

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

samples/client/petstore/java/microprofile-rest-client/docs/FooGetDefaultResponse.md

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

samples/client/petstore/java/microprofile-rest-client/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** | **Date** |  |  |
+|**dateTime** | **Date** |  |  [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/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/docs/MixedPropertiesAndAdditionalPropertiesClass.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/ModelApiResponse.md

@@ -2,7 +2,6 @@
 
 # ModelApiResponse
 
-Describes the result of uploading an image resource
 
 ## Properties
 

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/ModelList.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/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** | **Date** |  |  [optional] |
+|**datetimeProp** | **Date** |  |  [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/microprofile-rest-client/docs/NumberOnly.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/Order.md

@@ -2,7 +2,6 @@
 
 # Order
 
-An order for a pets from the pet store
 
 ## Properties
 

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/docs/OuterEnum.md

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

samples/client/petstore/java/microprofile-rest-client/docs/OuterEnumDefaultValue.md

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

samples/client/petstore/java/microprofile-rest-client/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/microprofile-rest-client/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/microprofile-rest-client/docs/OuterObjectWithEnumProperty.md

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

samples/client/petstore/java/microprofile-rest-client/docs/ParentWithNullable.md

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

samples/client/petstore/java/microprofile-rest-client/docs/Pet.md

@@ -2,7 +2,6 @@
 
 # Pet
 
-A pet for sale in the pet store
 
 ## Properties
 
@@ -11,7 +10,7 @@ A pet for sale in the pet store
 |**id** | **Long** |  |  [optional] |
 |**category** | [**Category**](Category.md) |  |  [optional] |
 |**name** | **String** |  |  |
-|**photoUrls** | **List<String>** |  |  |
+|**photoUrls** | **Set<String>** |  |  |
 |**tags** | [**List<Tag>**](Tag.md) |  |  [optional] |
 |**status** | [**StatusEnum**](#StatusEnum) | pet status in the store |  [optional] |
 

samples/client/petstore/java/microprofile-rest-client/docs/PetApi.md

@@ -1,6 +1,6 @@
 # PetApi
 
-All URIs are relative to *http://petstore.swagger.io/v2*
+All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
@@ -12,12 +12,13 @@ All URIs are relative to *http://petstore.swagger.io/v2*
 | [**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
 
-> Pet addPet(pet)
+> void addPet(pet)
 
 Add a new pet to the store
 
@@ -37,7 +38,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -46,7 +47,7 @@ public class Example {
         PetApi apiInstance = new PetApi(defaultClient);
         Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            Pet result = apiInstance.addPet(pet);
+            void result = apiInstance.addPet(pet);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#addPet");
@@ -68,7 +69,7 @@ public class Example {
 
 ### Return type
 
-[**Pet**](Pet.md)
+[**void**](Void.md)
 
 ### Authorization
 
@@ -77,13 +78,13 @@ public class Example {
 ### HTTP request headers
 
 - **Content-Type**: application/json, application/xml
-- **Accept**: application/xml, application/json
+- **Accept**: Not defined
 
 
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -109,7 +110,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -157,6 +158,7 @@ public class Example {
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
 | **400** | Invalid pet value |  -  |
 
 
@@ -182,7 +184,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -234,7 +236,7 @@ public class Example {
 
 ## findPetsByTags
 
-> List<Pet> findPetsByTags(tags)
+> Set<Pet> findPetsByTags(tags)
 
 Finds Pets by tags
 
@@ -254,16 +256,16 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // 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> tags = Arrays.asList(); // List<String> | Tags to filter by
+        Set<String> tags = Arrays.asList(); // Set<String> | Tags to filter by
         try {
-            List<Pet> result = apiInstance.findPetsByTags(tags);
+            Set<Pet> result = apiInstance.findPetsByTags(tags);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#findPetsByTags");
@@ -281,11 +283,11 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **tags** | [**List&lt;String&gt;**](String.md)| Tags to filter by | |
+| **tags** | [**Set&lt;String&gt;**](String.md)| Tags to filter by | |
 
 ### Return type
 
-[**List&lt;Pet&gt;**](Pet.md)
+[**Set&lt;Pet&gt;**](Pet.md)
 
 ### Authorization
 
@@ -326,7 +328,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure API key authorization: api_key
         ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
@@ -381,7 +383,7 @@ public class Example {
 
 ## updatePet
 
-> Pet updatePet(pet)
+> void updatePet(pet)
 
 Update an existing pet
 
@@ -401,7 +403,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -410,7 +412,7 @@ public class Example {
         PetApi apiInstance = new PetApi(defaultClient);
         Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            Pet result = apiInstance.updatePet(pet);
+            void result = apiInstance.updatePet(pet);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#updatePet");
@@ -432,7 +434,7 @@ public class Example {
 
 ### Return type
 
-[**Pet**](Pet.md)
+[**void**](Void.md)
 
 ### Authorization
 
@@ -441,13 +443,13 @@ public class Example {
 ### HTTP request headers
 
 - **Content-Type**: application/json, application/xml
-- **Accept**: application/xml, application/json
+- **Accept**: Not defined
 
 
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **400** | Invalid ID supplied |  -  |
 | **404** | Pet not found |  -  |
 | **405** | Validation exception |  -  |
@@ -475,7 +477,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -525,6 +527,7 @@ public class Example {
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -550,7 +553,7 @@ import org.openapitools.client.api.PetApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure OAuth2 access token for authorization: petstore_auth
         OAuth petstore_auth = (OAuth) defaultClient.getAuthentication("petstore_auth");
@@ -602,3 +605,78 @@ public class Example {
 |-------------|-------------|------------------|
 | **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://petstore.swagger.io:80/v2");
+        
+        // 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/microprofile-rest-client/docs/ReadOnlyFirst.md

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

samples/client/petstore/java/microprofile-rest-client/docs/SingleRefType.md

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

samples/client/petstore/java/microprofile-rest-client/docs/SpecialModelName.md

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

samples/client/petstore/java/microprofile-rest-client/docs/StoreApi.md

@@ -1,12 +1,12 @@
 # StoreApi
 
-All URIs are relative to *http://petstore.swagger.io/v2*
+All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
-| [**deleteOrder**](StoreApi.md#deleteOrder) | **DELETE** /store/order/{orderId} | Delete purchase order by ID |
+| [**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/{orderId} | Find purchase order by ID |
+| [**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 |
 
 
@@ -32,7 +32,7 @@ import org.openapitools.client.api.StoreApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
         String orderId = "orderId_example"; // String | ID of the order that needs to be deleted
@@ -100,7 +100,7 @@ import org.openapitools.client.api.StoreApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         // Configure API key authorization: api_key
         ApiKeyAuth api_key = (ApiKeyAuth) defaultClient.getAuthentication("api_key");
@@ -168,7 +168,7 @@ import org.openapitools.client.api.StoreApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
         Long orderId = 56L; // Long | ID of pet that needs to be fetched
@@ -236,7 +236,7 @@ import org.openapitools.client.api.StoreApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
         Order order = new Order(); // Order | order placed for purchasing the pet

samples/client/petstore/java/microprofile-rest-client/docs/Tag.md

@@ -2,7 +2,6 @@
 
 # Tag
 
-A tag for a pet
 
 ## Properties
 

samples/client/petstore/java/microprofile-rest-client/docs/TestInlineFreeformAdditionalPropertiesRequest.md

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

samples/client/petstore/java/microprofile-rest-client/docs/User.md

@@ -2,7 +2,6 @@
 
 # User
 
-A User who is purchasing from the pet store
 
 ## Properties
 

samples/client/petstore/java/microprofile-rest-client/docs/UserApi.md

@@ -1,6 +1,6 @@
 # UserApi
 
-All URIs are relative to *http://petstore.swagger.io/v2*
+All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
@@ -30,20 +30,13 @@ This can only be done by the logged in user.
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         User user = new User(); // User | Created user object
@@ -74,7 +67,7 @@ public class Example {
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 
@@ -103,20 +96,13 @@ Creates list of users with given input array
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         List<User> user = Arrays.asList(); // List<User> | List of user object
@@ -147,7 +133,7 @@ public class Example {
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 
@@ -176,20 +162,13 @@ Creates list of users with given input array
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         List<User> user = Arrays.asList(); // List<User> | List of user object
@@ -220,7 +199,7 @@ public class Example {
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 
@@ -249,20 +228,13 @@ This can only be done by the logged in user.
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | The name that needs to be deleted
@@ -293,7 +265,7 @@ public class Example {
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 
@@ -329,7 +301,7 @@ import org.openapitools.client.api.UserApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | The name that needs to be fetched. Use user1 for testing.
@@ -397,7 +369,7 @@ import org.openapitools.client.api.UserApi;
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | The user name for login
@@ -441,7 +413,7 @@ No authorization required
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  * Set-Cookie - Cookie authentication key for use with the &#x60;api_key&#x60; apiKey authentication. <br>  * X-Rate-Limit - calls per hour allowed by the user <br>  * X-Expires-After - date in UTC when token expires <br>  |
+| **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 |  -  |
 
 
@@ -460,20 +432,13 @@ Logs out current logged in user session
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         try {
@@ -500,7 +465,7 @@ This endpoint does not need any parameter.
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 
@@ -529,20 +494,13 @@ This can only be done by the logged in user.
 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.UserApi;
 
 public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
-        defaultClient.setBasePath("http://petstore.swagger.io/v2");
-        
-        // 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");
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | name that need to be deleted
@@ -575,7 +533,7 @@ public class Example {
 
 ### Authorization
 
-[api_key](../README.md#api_key)
+No authorization required
 
 ### HTTP request headers
 

samples/client/petstore/java/microprofile-rest-client/pom.xml

@@ -4,7 +4,7 @@
   <artifactId>microprofile-rest-client</artifactId>
   <packaging>jar</packaging>
   <name>microprofile-rest-client</name>
-  <description>This is a sample server Petstore server. For this sample, you can use the api key &#x60;special-key&#x60; to test the authorization filters.</description>
+  <description>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \&quot; \\</description>
   <version>1.0.0</version>
   <build>
     <sourceDirectory>src/main/java</sourceDirectory>

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/AnotherFakeApi.java

@@ -0,0 +1,54 @@
+/**
+ * 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.api;
+
+import org.openapitools.client.model.Client;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.ws.rs.*;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.MediaType;
+import org.apache.cxf.jaxrs.ext.multipart.*;
+
+
+import org.eclipse.microprofile.rest.client.annotation.RegisterProvider;
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+/**
+ * OpenAPI Petstore
+ *
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ */
+
+@RegisterRestClient(configKey="anotherfake-api")
+@RegisterProvider(ApiExceptionMapper.class)
+@Path("/another-fake/dummy")
+public interface AnotherFakeApi  {
+
+    /**
+     * To test special tags
+     *
+     * To test special tags and operation ID starting with number
+     *
+     */
+    @PATCH
+    
+    @Consumes({ "application/json" })
+    @Produces({ "application/json" })
+    Client call123testSpecialTags(Client client) throws ApiException, ProcessingException;
+}

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/ApiException.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/ApiExceptionMapper.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/DefaultApi.java

@@ -0,0 +1,47 @@
+/**
+ * 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.api;
+
+import org.openapitools.client.model.FooGetDefaultResponse;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.ws.rs.*;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.MediaType;
+import org.apache.cxf.jaxrs.ext.multipart.*;
+
+
+import org.eclipse.microprofile.rest.client.annotation.RegisterProvider;
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+/**
+ * OpenAPI Petstore
+ *
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ */
+
+@RegisterRestClient(configKey="default-api")
+@RegisterProvider(ApiExceptionMapper.class)
+@Path("/foo")
+public interface DefaultApi  {
+
+    @GET
+    
+    @Produces({ "application/json" })
+    FooGetDefaultResponse fooGet() throws ApiException, ProcessingException;
+}

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/FakeApi.java

@@ -0,0 +1,237 @@
+/**
+ * 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.api;
+
+import java.math.BigDecimal;
+import org.openapitools.client.model.ChildWithNullable;
+import org.openapitools.client.model.Client;
+import java.util.Date;
+import org.openapitools.client.model.EnumClass;
+import org.openapitools.client.model.FakeBigDecimalMap200Response;
+import java.io.File;
+import org.openapitools.client.model.FileSchemaTestClass;
+import org.openapitools.client.model.HealthCheckResult;
+import org.openapitools.client.model.OuterComposite;
+import org.openapitools.client.model.OuterObjectWithEnumProperty;
+import org.openapitools.client.model.Pet;
+import org.openapitools.client.model.TestInlineFreeformAdditionalPropertiesRequest;
+import org.openapitools.client.model.User;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.ws.rs.*;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.MediaType;
+import org.apache.cxf.jaxrs.ext.multipart.*;
+
+
+import org.eclipse.microprofile.rest.client.annotation.RegisterProvider;
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+/**
+ * OpenAPI Petstore
+ *
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ */
+
+@RegisterRestClient(configKey="fake-api")
+@RegisterProvider(ApiExceptionMapper.class)
+@Path("/fake")
+public interface FakeApi  {
+
+    @GET
+    @Path("/BigDecimalMap")
+    @Produces({ "*/*" })
+    FakeBigDecimalMap200Response fakeBigDecimalMap() throws ApiException, ProcessingException;
+
+    /**
+     * Health check endpoint
+     *
+     */
+    @GET
+    @Path("/health")
+    @Produces({ "application/json" })
+    HealthCheckResult fakeHealthGet() throws ApiException, ProcessingException;
+
+    /**
+     * test http signature authentication
+     *
+     */
+    @GET
+    @Path("/http-signature-test")
+    @Consumes({ "application/json", "application/xml" })
+    void fakeHttpSignatureTest(Pet pet, @QueryParam("query_1") String query1, @HeaderParam("header_1")  String header1) throws ApiException, ProcessingException;
+
+    @POST
+    @Path("/outer/boolean")
+    @Consumes({ "application/json" })
+    @Produces({ "*/*" })
+    Boolean fakeOuterBooleanSerialize(Boolean body) throws ApiException, ProcessingException;
+
+    @POST
+    @Path("/outer/composite")
+    @Consumes({ "application/json" })
+    @Produces({ "*/*" })
+    OuterComposite fakeOuterCompositeSerialize(OuterComposite outerComposite) throws ApiException, ProcessingException;
+
+    @POST
+    @Path("/outer/number")
+    @Consumes({ "application/json" })
+    @Produces({ "*/*" })
+    BigDecimal fakeOuterNumberSerialize(BigDecimal body) throws ApiException, ProcessingException;
+
+    @POST
+    @Path("/outer/string")
+    @Consumes({ "application/json" })
+    @Produces({ "*/*" })
+    String fakeOuterStringSerialize(String body) throws ApiException, ProcessingException;
+
+    @POST
+    @Path("/property/enum-int")
+    @Consumes({ "application/json" })
+    @Produces({ "*/*" })
+    OuterObjectWithEnumProperty fakePropertyEnumIntegerSerialize(OuterObjectWithEnumProperty outerObjectWithEnumProperty) throws ApiException, ProcessingException;
+
+    /**
+     * test referenced additionalProperties
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/additionalProperties-reference")
+    @Consumes({ "application/json" })
+    void testAdditionalPropertiesReference(Map<String, Object> requestBody) throws ApiException, ProcessingException;
+
+    @PUT
+    @Path("/body-with-binary")
+    @Consumes({ "image/png" })
+    void testBodyWithBinary(File body) throws ApiException, ProcessingException;
+
+    @PUT
+    @Path("/body-with-file-schema")
+    @Consumes({ "application/json" })
+    void testBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass) throws ApiException, ProcessingException;
+
+    @PUT
+    @Path("/body-with-query-params")
+    @Consumes({ "application/json" })
+    void testBodyWithQueryParams(@QueryParam("query") String query, User user) throws ApiException, ProcessingException;
+
+    /**
+     * To test \&quot;client\&quot; model
+     *
+     * To test \&quot;client\&quot; model
+     *
+     */
+    @PATCH
+    
+    @Consumes({ "application/json" })
+    @Produces({ "application/json" })
+    Client testClientModel(Client client) throws ApiException, ProcessingException;
+
+    /**
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     *
+     * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+     *
+     */
+    @POST
+    
+    @Consumes({ "application/x-www-form-urlencoded" })
+    void testEndpointParameters(@Multipart(value = "number")  BigDecimal number, @Multipart(value = "double")  Double _double, @Multipart(value = "pattern_without_delimiter")  String patternWithoutDelimiter, @Multipart(value = "byte")  byte[] _byte, @Multipart(value = "integer", required = false)  Integer integer, @Multipart(value = "int32", required = false)  Integer int32, @Multipart(value = "int64", required = false)  Long int64, @Multipart(value = "float", required = false)  Float _float, @Multipart(value = "string", required = false)  String string,  @Multipart(value = "binary" , required = false) Attachment binaryDetail, @Multipart(value = "date", required = false)  Date date, @Multipart(value = "dateTime", required = false)  Date dateTime, @Multipart(value = "password", required = false)  String password, @Multipart(value = "callback", required = false)  String paramCallback) throws ApiException, ProcessingException;
+
+    /**
+     * To test enum parameters
+     *
+     * To test enum parameters
+     *
+     */
+    @GET
+    
+    @Consumes({ "application/x-www-form-urlencoded" })
+    void testEnumParameters(@HeaderParam("enum_header_string_array")  List<String> enumHeaderStringArray, @HeaderParam("enum_header_string")  String enumHeaderString, @QueryParam("enum_query_string_array") List<String> enumQueryStringArray, @QueryParam("enum_query_string") @DefaultValue("-efg") String enumQueryString, @QueryParam("enum_query_integer") Integer enumQueryInteger, @QueryParam("enum_query_double") Double enumQueryDouble, @QueryParam("enum_query_model_array") List<EnumClass> enumQueryModelArray, @Multipart(value = "enum_form_string_array", required = false)  List<String> enumFormStringArray, @Multipart(value = "enum_form_string", required = false)  String enumFormString) throws ApiException, ProcessingException;
+
+    /**
+     * Fake endpoint to test group parameters (optional)
+     *
+     * Fake endpoint to test group parameters (optional)
+     *
+     */
+    @DELETE
+    
+    void testGroupParameters(@QueryParam("required_string_group") Integer requiredStringGroup, @HeaderParam("required_boolean_group")  Boolean requiredBooleanGroup, @QueryParam("required_int64_group") Long requiredInt64Group, @QueryParam("string_group") Integer stringGroup, @HeaderParam("boolean_group")  Boolean booleanGroup, @QueryParam("int64_group") Long int64Group) throws ApiException, ProcessingException;
+
+    /**
+     * test inline additionalProperties
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/inline-additionalProperties")
+    @Consumes({ "application/json" })
+    void testInlineAdditionalProperties(Map<String, String> requestBody) throws ApiException, ProcessingException;
+
+    /**
+     * test inline free-form additionalProperties
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/inline-freeform-additionalProperties")
+    @Consumes({ "application/json" })
+    void testInlineFreeformAdditionalProperties(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest) throws ApiException, ProcessingException;
+
+    /**
+     * test json serialization of form data
+     *
+     * 
+     *
+     */
+    @GET
+    @Path("/jsonFormData")
+    @Consumes({ "application/x-www-form-urlencoded" })
+    void testJsonFormData(@Multipart(value = "param")  String param, @Multipart(value = "param2")  String param2) throws ApiException, ProcessingException;
+
+    /**
+     * test nullable parent property
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/nullable")
+    @Consumes({ "application/json" })
+    void testNullable(ChildWithNullable childWithNullable) throws ApiException, ProcessingException;
+
+    @PUT
+    @Path("/test-query-parameters")
+    void testQueryParameterCollectionFormat(@QueryParam("pipe") List<String> pipe, @QueryParam("ioutil") List<String> ioutil, @QueryParam("http") List<String> http, @QueryParam("url") List<String> url, @QueryParam("context") List<String> context, @QueryParam("allowEmpty") String allowEmpty, @QueryParam("language") Map<String, String> language) throws ApiException, ProcessingException;
+
+    /**
+     * test referenced string map
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/stringMap-reference")
+    @Consumes({ "application/json" })
+    void testStringMapReference(Map<String, String> requestBody) throws ApiException, ProcessingException;
+}

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java

@@ -0,0 +1,54 @@
+/**
+ * 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.api;
+
+import org.openapitools.client.model.Client;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.ws.rs.*;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.MediaType;
+import org.apache.cxf.jaxrs.ext.multipart.*;
+
+
+import org.eclipse.microprofile.rest.client.annotation.RegisterProvider;
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+/**
+ * OpenAPI Petstore
+ *
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ */
+
+@RegisterRestClient(configKey="fakeclassnametags123-api")
+@RegisterProvider(ApiExceptionMapper.class)
+@Path("/fake_classname_test")
+public interface FakeClassnameTags123Api  {
+
+    /**
+     * To test class name in snake case
+     *
+     * To test class name in snake case
+     *
+     */
+    @PATCH
+    
+    @Consumes({ "application/json" })
+    @Produces({ "application/json" })
+    Client testClassname(Client client) throws ApiException, ProcessingException;
+}

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/PetApi.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 
@@ -15,6 +15,7 @@ package org.openapitools.client.api;
 import java.io.File;
 import org.openapitools.client.model.ModelApiResponse;
 import org.openapitools.client.model.Pet;
+import java.util.Set;
 
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -33,13 +34,13 @@ import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
 /**
  * OpenAPI Petstore
  *
- * <p>This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
  *
  */
 
 @RegisterRestClient(configKey="pet-api")
 @RegisterProvider(ApiExceptionMapper.class)
-@Path("/pet")
+@Path("")
 public interface PetApi  {
 
     /**
@@ -49,10 +50,9 @@ public interface PetApi  {
      *
      */
     @POST
-    
+    @Path("/pet")
     @Consumes({ "application/json", "application/xml" })
-    @Produces({ "application/xml", "application/json" })
-    Pet addPet(Pet pet) throws ApiException, ProcessingException;
+    void addPet(Pet pet) throws ApiException, ProcessingException;
 
     /**
      * Deletes a pet
@@ -61,7 +61,7 @@ public interface PetApi  {
      *
      */
     @DELETE
-    @Path("/{petId}")
+    @Path("/pet/{petId}")
     void deletePet(@PathParam("petId") Long petId, @HeaderParam("api_key")  String apiKey) throws ApiException, ProcessingException;
 
     /**
@@ -71,7 +71,7 @@ public interface PetApi  {
      *
      */
     @GET
-    @Path("/findByStatus")
+    @Path("/pet/findByStatus")
     @Produces({ "application/xml", "application/json" })
     List<Pet> findPetsByStatus(@QueryParam("status") List<String> status) throws ApiException, ProcessingException;
 
@@ -84,9 +84,9 @@ public interface PetApi  {
      */
     @Deprecated
     @GET
-    @Path("/findByTags")
+    @Path("/pet/findByTags")
     @Produces({ "application/xml", "application/json" })
-    List<Pet> findPetsByTags(@QueryParam("tags") List<String> tags) throws ApiException, ProcessingException;
+    Set<Pet> findPetsByTags(@QueryParam("tags") Set<String> tags) throws ApiException, ProcessingException;
 
     /**
      * Find pet by ID
@@ -95,7 +95,7 @@ public interface PetApi  {
      *
      */
     @GET
-    @Path("/{petId}")
+    @Path("/pet/{petId}")
     @Produces({ "application/xml", "application/json" })
     Pet getPetById(@PathParam("petId") Long petId) throws ApiException, ProcessingException;
 
@@ -106,10 +106,9 @@ public interface PetApi  {
      *
      */
     @PUT
-    
+    @Path("/pet")
     @Consumes({ "application/json", "application/xml" })
-    @Produces({ "application/xml", "application/json" })
-    Pet updatePet(Pet pet) throws ApiException, ProcessingException;
+    void updatePet(Pet pet) throws ApiException, ProcessingException;
 
     /**
      * Updates a pet in the store with form data
@@ -118,7 +117,7 @@ public interface PetApi  {
      *
      */
     @POST
-    @Path("/{petId}")
+    @Path("/pet/{petId}")
     @Consumes({ "application/x-www-form-urlencoded" })
     void updatePetWithForm(@PathParam("petId") Long petId, @Multipart(value = "name", required = false)  String name, @Multipart(value = "status", required = false)  String status) throws ApiException, ProcessingException;
 
@@ -129,8 +128,20 @@ public interface PetApi  {
      *
      */
     @POST
-    @Path("/{petId}/uploadImage")
+    @Path("/pet/{petId}/uploadImage")
     @Consumes({ "multipart/form-data" })
     @Produces({ "application/json" })
     ModelApiResponse uploadFile(@PathParam("petId") Long petId, @Multipart(value = "additionalMetadata", required = false)  String additionalMetadata,  @Multipart(value = "file" , required = false) Attachment _fileDetail) throws ApiException, ProcessingException;
+
+    /**
+     * uploads an image (required)
+     *
+     * 
+     *
+     */
+    @POST
+    @Path("/fake/{petId}/uploadImageWithRequiredFile")
+    @Consumes({ "multipart/form-data" })
+    @Produces({ "application/json" })
+    ModelApiResponse uploadFileWithRequiredFile(@PathParam("petId") Long petId,  @Multipart(value = "requiredFile" ) Attachment requiredFileDetail, @Multipart(value = "additionalMetadata", required = false)  String additionalMetadata) throws ApiException, ProcessingException;
 }

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/StoreApi.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 
@@ -31,7 +31,7 @@ import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
 /**
  * OpenAPI Petstore
  *
- * <p>This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
  *
  */
 
@@ -47,8 +47,8 @@ public interface StoreApi  {
      *
      */
     @DELETE
-    @Path("/order/{orderId}")
-    void deleteOrder(@PathParam("orderId") String orderId) throws ApiException, ProcessingException;
+    @Path("/order/{order_id}")
+    void deleteOrder(@PathParam("order_id") String orderId) throws ApiException, ProcessingException;
 
     /**
      * Returns pet inventories by status
@@ -68,9 +68,9 @@ public interface StoreApi  {
      *
      */
     @GET
-    @Path("/order/{orderId}")
+    @Path("/order/{order_id}")
     @Produces({ "application/xml", "application/json" })
-    Order getOrderById(@PathParam("orderId") Long orderId) throws ApiException, ProcessingException;
+    Order getOrderById(@PathParam("order_id") Long orderId) throws ApiException, ProcessingException;
 
     /**
      * Place an order for a pet

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/api/UserApi.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 
@@ -32,7 +32,7 @@ import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
 /**
  * OpenAPI Petstore
  *
- * <p>This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * <p>This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
  *
  */
 

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java

@@ -0,0 +1,139 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class AdditionalPropertiesClass  {
+  
+  @JsonbProperty("map_property")
+  private Map<String, String> mapProperty = null;
+
+  @JsonbProperty("map_of_map_property")
+  private Map<String, Map<String, String>> mapOfMapProperty = null;
+
+  /**
+   * Get mapProperty
+   * @return mapProperty
+   **/
+  public Map<String, String> getMapProperty() {
+    return mapProperty;
+  }
+
+  /**
+   * Set mapProperty
+   */
+  public void setMapProperty(Map<String, String> mapProperty) {
+    this.mapProperty = mapProperty;
+  }
+
+  public AdditionalPropertiesClass mapProperty(Map<String, String> mapProperty) {
+    this.mapProperty = mapProperty;
+    return this;
+  }
+
+  public AdditionalPropertiesClass putMapPropertyItem(String key, String mapPropertyItem) {
+    if (this.mapProperty == null) {
+      this.mapProperty = new HashMap<>();
+    }
+    this.mapProperty.put(key, mapPropertyItem);
+    return this;
+  }
+
+  /**
+   * Get mapOfMapProperty
+   * @return mapOfMapProperty
+   **/
+  public Map<String, Map<String, String>> getMapOfMapProperty() {
+    return mapOfMapProperty;
+  }
+
+  /**
+   * Set mapOfMapProperty
+   */
+  public void setMapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+    this.mapOfMapProperty = mapOfMapProperty;
+  }
+
+  public AdditionalPropertiesClass mapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
+    this.mapOfMapProperty = mapOfMapProperty;
+    return this;
+  }
+
+  public AdditionalPropertiesClass putMapOfMapPropertyItem(String key, Map<String, String> mapOfMapPropertyItem) {
+    if (this.mapOfMapProperty == null) {
+      this.mapOfMapProperty = new HashMap<>();
+    }
+    this.mapOfMapProperty.put(key, mapOfMapPropertyItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    AdditionalPropertiesClass additionalPropertiesClass = (AdditionalPropertiesClass) o;
+    return Objects.equals(this.mapProperty, additionalPropertiesClass.mapProperty) &&
+        Objects.equals(this.mapOfMapProperty, additionalPropertiesClass.mapOfMapProperty);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(mapProperty, mapOfMapProperty);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class AdditionalPropertiesClass {\n");
+    
+    sb.append("    mapProperty: ").append(toIndentedString(mapProperty)).append("\n");
+    sb.append("    mapOfMapProperty: ").append(toIndentedString(mapOfMapProperty)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/AllOfWithSingleRef.java

@@ -0,0 +1,122 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.SingleRefType;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class AllOfWithSingleRef  {
+  
+  @JsonbProperty("username")
+  private String username;
+
+  @JsonbProperty("SingleRefType")
+  private SingleRefType singleRefType;
+
+  /**
+   * Get username
+   * @return username
+   **/
+  public String getUsername() {
+    return username;
+  }
+
+  /**
+   * Set username
+   */
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+  public AllOfWithSingleRef username(String username) {
+    this.username = username;
+    return this;
+  }
+
+  /**
+   * Get singleRefType
+   * @return singleRefType
+   **/
+  public SingleRefType getSingleRefType() {
+    return singleRefType;
+  }
+
+  /**
+   * Set singleRefType
+   */
+  public void setSingleRefType(SingleRefType singleRefType) {
+    this.singleRefType = singleRefType;
+  }
+
+  public AllOfWithSingleRef singleRefType(SingleRefType singleRefType) {
+    this.singleRefType = singleRefType;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    AllOfWithSingleRef allOfWithSingleRef = (AllOfWithSingleRef) o;
+    return Objects.equals(this.username, allOfWithSingleRef.username) &&
+        Objects.equals(this.singleRefType, allOfWithSingleRef.singleRefType);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(username, singleRefType);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class AllOfWithSingleRef {\n");
+    
+    sb.append("    username: ").append(toIndentedString(username)).append("\n");
+    sb.append("    singleRefType: ").append(toIndentedString(singleRefType)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Animal.java

@@ -0,0 +1,121 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Animal  {
+  
+  @JsonbProperty("className")
+  private String className;
+
+  @JsonbProperty("color")
+  private String color = "red";
+
+  /**
+   * Get className
+   * @return className
+   **/
+  public String getClassName() {
+    return className;
+  }
+
+  /**
+   * Set className
+   */
+  public void setClassName(String className) {
+    this.className = className;
+  }
+
+  public Animal className(String className) {
+    this.className = className;
+    return this;
+  }
+
+  /**
+   * Get color
+   * @return color
+   **/
+  public String getColor() {
+    return color;
+  }
+
+  /**
+   * Set color
+   */
+  public void setColor(String color) {
+    this.color = color;
+  }
+
+  public Animal color(String color) {
+    this.color = color;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Animal animal = (Animal) o;
+    return Objects.equals(this.className, animal.className) &&
+        Objects.equals(this.color, animal.color);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(className, color);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Animal {\n");
+    
+    sb.append("    className: ").append(toIndentedString(className)).append("\n");
+    sb.append("    color: ").append(toIndentedString(color)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ArrayOfArrayOfNumberOnly.java

@@ -0,0 +1,108 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class ArrayOfArrayOfNumberOnly  {
+  
+  @JsonbProperty("ArrayArrayNumber")
+  private List<List<BigDecimal>> arrayArrayNumber = null;
+
+  /**
+   * Get arrayArrayNumber
+   * @return arrayArrayNumber
+   **/
+  public List<List<BigDecimal>> getArrayArrayNumber() {
+    return arrayArrayNumber;
+  }
+
+  /**
+   * Set arrayArrayNumber
+   */
+  public void setArrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+    this.arrayArrayNumber = arrayArrayNumber;
+  }
+
+  public ArrayOfArrayOfNumberOnly arrayArrayNumber(List<List<BigDecimal>> arrayArrayNumber) {
+    this.arrayArrayNumber = arrayArrayNumber;
+    return this;
+  }
+
+  public ArrayOfArrayOfNumberOnly addArrayArrayNumberItem(List<BigDecimal> arrayArrayNumberItem) {
+    if (this.arrayArrayNumber == null) {
+      this.arrayArrayNumber = new ArrayList<>();
+    }
+    this.arrayArrayNumber.add(arrayArrayNumberItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayOfArrayOfNumberOnly arrayOfArrayOfNumberOnly = (ArrayOfArrayOfNumberOnly) o;
+    return Objects.equals(this.arrayArrayNumber, arrayOfArrayOfNumberOnly.arrayArrayNumber);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayArrayNumber);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayOfArrayOfNumberOnly {\n");
+    
+    sb.append("    arrayArrayNumber: ").append(toIndentedString(arrayArrayNumber)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ArrayOfNumberOnly.java

@@ -0,0 +1,108 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class ArrayOfNumberOnly  {
+  
+  @JsonbProperty("ArrayNumber")
+  private List<BigDecimal> arrayNumber = null;
+
+  /**
+   * Get arrayNumber
+   * @return arrayNumber
+   **/
+  public List<BigDecimal> getArrayNumber() {
+    return arrayNumber;
+  }
+
+  /**
+   * Set arrayNumber
+   */
+  public void setArrayNumber(List<BigDecimal> arrayNumber) {
+    this.arrayNumber = arrayNumber;
+  }
+
+  public ArrayOfNumberOnly arrayNumber(List<BigDecimal> arrayNumber) {
+    this.arrayNumber = arrayNumber;
+    return this;
+  }
+
+  public ArrayOfNumberOnly addArrayNumberItem(BigDecimal arrayNumberItem) {
+    if (this.arrayNumber == null) {
+      this.arrayNumber = new ArrayList<>();
+    }
+    this.arrayNumber.add(arrayNumberItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayOfNumberOnly arrayOfNumberOnly = (ArrayOfNumberOnly) o;
+    return Objects.equals(this.arrayNumber, arrayOfNumberOnly.arrayNumber);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayNumber);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayOfNumberOnly {\n");
+    
+    sb.append("    arrayNumber: ").append(toIndentedString(arrayNumber)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ArrayTest.java

@@ -0,0 +1,174 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import org.openapitools.client.model.ReadOnlyFirst;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class ArrayTest  {
+  
+  @JsonbProperty("array_of_string")
+  private List<String> arrayOfString = null;
+
+  @JsonbProperty("array_array_of_integer")
+  private List<List<Long>> arrayArrayOfInteger = null;
+
+  @JsonbProperty("array_array_of_model")
+  private List<List<ReadOnlyFirst>> arrayArrayOfModel = null;
+
+  /**
+   * Get arrayOfString
+   * @return arrayOfString
+   **/
+  public List<String> getArrayOfString() {
+    return arrayOfString;
+  }
+
+  /**
+   * Set arrayOfString
+   */
+  public void setArrayOfString(List<String> arrayOfString) {
+    this.arrayOfString = arrayOfString;
+  }
+
+  public ArrayTest arrayOfString(List<String> arrayOfString) {
+    this.arrayOfString = arrayOfString;
+    return this;
+  }
+
+  public ArrayTest addArrayOfStringItem(String arrayOfStringItem) {
+    if (this.arrayOfString == null) {
+      this.arrayOfString = new ArrayList<>();
+    }
+    this.arrayOfString.add(arrayOfStringItem);
+    return this;
+  }
+
+  /**
+   * Get arrayArrayOfInteger
+   * @return arrayArrayOfInteger
+   **/
+  public List<List<Long>> getArrayArrayOfInteger() {
+    return arrayArrayOfInteger;
+  }
+
+  /**
+   * Set arrayArrayOfInteger
+   */
+  public void setArrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+    this.arrayArrayOfInteger = arrayArrayOfInteger;
+  }
+
+  public ArrayTest arrayArrayOfInteger(List<List<Long>> arrayArrayOfInteger) {
+    this.arrayArrayOfInteger = arrayArrayOfInteger;
+    return this;
+  }
+
+  public ArrayTest addArrayArrayOfIntegerItem(List<Long> arrayArrayOfIntegerItem) {
+    if (this.arrayArrayOfInteger == null) {
+      this.arrayArrayOfInteger = new ArrayList<>();
+    }
+    this.arrayArrayOfInteger.add(arrayArrayOfIntegerItem);
+    return this;
+  }
+
+  /**
+   * Get arrayArrayOfModel
+   * @return arrayArrayOfModel
+   **/
+  public List<List<ReadOnlyFirst>> getArrayArrayOfModel() {
+    return arrayArrayOfModel;
+  }
+
+  /**
+   * Set arrayArrayOfModel
+   */
+  public void setArrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+    this.arrayArrayOfModel = arrayArrayOfModel;
+  }
+
+  public ArrayTest arrayArrayOfModel(List<List<ReadOnlyFirst>> arrayArrayOfModel) {
+    this.arrayArrayOfModel = arrayArrayOfModel;
+    return this;
+  }
+
+  public ArrayTest addArrayArrayOfModelItem(List<ReadOnlyFirst> arrayArrayOfModelItem) {
+    if (this.arrayArrayOfModel == null) {
+      this.arrayArrayOfModel = new ArrayList<>();
+    }
+    this.arrayArrayOfModel.add(arrayArrayOfModelItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArrayTest arrayTest = (ArrayTest) o;
+    return Objects.equals(this.arrayOfString, arrayTest.arrayOfString) &&
+        Objects.equals(this.arrayArrayOfInteger, arrayTest.arrayArrayOfInteger) &&
+        Objects.equals(this.arrayArrayOfModel, arrayTest.arrayArrayOfModel);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(arrayOfString, arrayArrayOfInteger, arrayArrayOfModel);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ArrayTest {\n");
+    
+    sb.append("    arrayOfString: ").append(toIndentedString(arrayOfString)).append("\n");
+    sb.append("    arrayArrayOfInteger: ").append(toIndentedString(arrayArrayOfInteger)).append("\n");
+    sb.append("    arrayArrayOfModel: ").append(toIndentedString(arrayArrayOfModel)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Capitalization.java

@@ -0,0 +1,224 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Capitalization  {
+  
+  @JsonbProperty("smallCamel")
+  private String smallCamel;
+
+  @JsonbProperty("CapitalCamel")
+  private String capitalCamel;
+
+  @JsonbProperty("small_Snake")
+  private String smallSnake;
+
+  @JsonbProperty("Capital_Snake")
+  private String capitalSnake;
+
+  @JsonbProperty("SCA_ETH_Flow_Points")
+  private String scAETHFlowPoints;
+
+ /**
+  * Name of the pet 
+  */
+  @JsonbProperty("ATT_NAME")
+  private String ATT_NAME;
+
+  /**
+   * Get smallCamel
+   * @return smallCamel
+   **/
+  public String getSmallCamel() {
+    return smallCamel;
+  }
+
+  /**
+   * Set smallCamel
+   */
+  public void setSmallCamel(String smallCamel) {
+    this.smallCamel = smallCamel;
+  }
+
+  public Capitalization smallCamel(String smallCamel) {
+    this.smallCamel = smallCamel;
+    return this;
+  }
+
+  /**
+   * Get capitalCamel
+   * @return capitalCamel
+   **/
+  public String getCapitalCamel() {
+    return capitalCamel;
+  }
+
+  /**
+   * Set capitalCamel
+   */
+  public void setCapitalCamel(String capitalCamel) {
+    this.capitalCamel = capitalCamel;
+  }
+
+  public Capitalization capitalCamel(String capitalCamel) {
+    this.capitalCamel = capitalCamel;
+    return this;
+  }
+
+  /**
+   * Get smallSnake
+   * @return smallSnake
+   **/
+  public String getSmallSnake() {
+    return smallSnake;
+  }
+
+  /**
+   * Set smallSnake
+   */
+  public void setSmallSnake(String smallSnake) {
+    this.smallSnake = smallSnake;
+  }
+
+  public Capitalization smallSnake(String smallSnake) {
+    this.smallSnake = smallSnake;
+    return this;
+  }
+
+  /**
+   * Get capitalSnake
+   * @return capitalSnake
+   **/
+  public String getCapitalSnake() {
+    return capitalSnake;
+  }
+
+  /**
+   * Set capitalSnake
+   */
+  public void setCapitalSnake(String capitalSnake) {
+    this.capitalSnake = capitalSnake;
+  }
+
+  public Capitalization capitalSnake(String capitalSnake) {
+    this.capitalSnake = capitalSnake;
+    return this;
+  }
+
+  /**
+   * Get scAETHFlowPoints
+   * @return scAETHFlowPoints
+   **/
+  public String getScAETHFlowPoints() {
+    return scAETHFlowPoints;
+  }
+
+  /**
+   * Set scAETHFlowPoints
+   */
+  public void setScAETHFlowPoints(String scAETHFlowPoints) {
+    this.scAETHFlowPoints = scAETHFlowPoints;
+  }
+
+  public Capitalization scAETHFlowPoints(String scAETHFlowPoints) {
+    this.scAETHFlowPoints = scAETHFlowPoints;
+    return this;
+  }
+
+  /**
+   * Name of the pet 
+   * @return ATT_NAME
+   **/
+  public String getATTNAME() {
+    return ATT_NAME;
+  }
+
+  /**
+   * Set ATT_NAME
+   */
+  public void setATTNAME(String ATT_NAME) {
+    this.ATT_NAME = ATT_NAME;
+  }
+
+  public Capitalization ATT_NAME(String ATT_NAME) {
+    this.ATT_NAME = ATT_NAME;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Capitalization capitalization = (Capitalization) o;
+    return Objects.equals(this.smallCamel, capitalization.smallCamel) &&
+        Objects.equals(this.capitalCamel, capitalization.capitalCamel) &&
+        Objects.equals(this.smallSnake, capitalization.smallSnake) &&
+        Objects.equals(this.capitalSnake, capitalization.capitalSnake) &&
+        Objects.equals(this.scAETHFlowPoints, capitalization.scAETHFlowPoints) &&
+        Objects.equals(this.ATT_NAME, capitalization.ATT_NAME);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(smallCamel, capitalCamel, smallSnake, capitalSnake, scAETHFlowPoints, ATT_NAME);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Capitalization {\n");
+    
+    sb.append("    smallCamel: ").append(toIndentedString(smallCamel)).append("\n");
+    sb.append("    capitalCamel: ").append(toIndentedString(capitalCamel)).append("\n");
+    sb.append("    smallSnake: ").append(toIndentedString(smallSnake)).append("\n");
+    sb.append("    capitalSnake: ").append(toIndentedString(capitalSnake)).append("\n");
+    sb.append("    scAETHFlowPoints: ").append(toIndentedString(scAETHFlowPoints)).append("\n");
+    sb.append("    ATT_NAME: ").append(toIndentedString(ATT_NAME)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Cat.java

@@ -0,0 +1,98 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.Animal;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Cat extends Animal {
+  
+  @JsonbProperty("declawed")
+  private Boolean declawed;
+
+  /**
+   * Get declawed
+   * @return declawed
+   **/
+  public Boolean getDeclawed() {
+    return declawed;
+  }
+
+  /**
+   * Set declawed
+   */
+  public void setDeclawed(Boolean declawed) {
+    this.declawed = declawed;
+  }
+
+  public Cat declawed(Boolean declawed) {
+    this.declawed = declawed;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Cat cat = (Cat) o;
+    return Objects.equals(this.declawed, cat.declawed) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(declawed, super.hashCode());
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Cat {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    declawed: ").append(toIndentedString(declawed)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Category.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 
@@ -24,10 +24,8 @@ import javax.json.bind.serializer.SerializationContext;
 import javax.json.stream.JsonGenerator;
 import javax.json.stream.JsonParser;
 import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
 
-/**
-  * A category for a pet
-  */
 
 public class Category  {
   
@@ -35,7 +33,7 @@ public class Category  {
   private Long id;
 
   @JsonbProperty("name")
-  private String name;
+  private String name = "default-name";
 
   /**
    * Get id

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ChildWithNullable.java

@@ -0,0 +1,98 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.ParentWithNullable;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class ChildWithNullable extends ParentWithNullable {
+  
+  @JsonbProperty("otherProperty")
+  private String otherProperty;
+
+  /**
+   * Get otherProperty
+   * @return otherProperty
+   **/
+  public String getOtherProperty() {
+    return otherProperty;
+  }
+
+  /**
+   * Set otherProperty
+   */
+  public void setOtherProperty(String otherProperty) {
+    this.otherProperty = otherProperty;
+  }
+
+  public ChildWithNullable otherProperty(String otherProperty) {
+    this.otherProperty = otherProperty;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ChildWithNullable childWithNullable = (ChildWithNullable) o;
+    return Objects.equals(this.otherProperty, childWithNullable.otherProperty) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(otherProperty, super.hashCode());
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ChildWithNullable {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    otherProperty: ").append(toIndentedString(otherProperty)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ClassModel.java

@@ -0,0 +1,99 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+/**
+  * Model for testing model with \"_class\" property
+  */
+
+public class ClassModel  {
+  
+  @JsonbProperty("_class")
+  private String propertyClass;
+
+  /**
+   * Get propertyClass
+   * @return propertyClass
+   **/
+  public String getPropertyClass() {
+    return propertyClass;
+  }
+
+  /**
+   * Set propertyClass
+   */
+  public void setPropertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+  }
+
+  public ClassModel propertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ClassModel classModel = (ClassModel) o;
+    return Objects.equals(this.propertyClass, classModel.propertyClass);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(propertyClass);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ClassModel {\n");
+    
+    sb.append("    propertyClass: ").append(toIndentedString(propertyClass)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Client.java

@@ -0,0 +1,96 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Client  {
+  
+  @JsonbProperty("client")
+  private String client;
+
+  /**
+   * Get client
+   * @return client
+   **/
+  public String getClient() {
+    return client;
+  }
+
+  /**
+   * Set client
+   */
+  public void setClient(String client) {
+    this.client = client;
+  }
+
+  public Client client(String client) {
+    this.client = client;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Client client = (Client) o;
+    return Objects.equals(this.client, client.client);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(client);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Client {\n");
+    
+    sb.append("    client: ").append(toIndentedString(client)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/DeprecatedObject.java

@@ -0,0 +1,96 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class DeprecatedObject  {
+  
+  @JsonbProperty("name")
+  private String name;
+
+  /**
+   * Get name
+   * @return name
+   **/
+  public String getName() {
+    return name;
+  }
+
+  /**
+   * Set name
+   */
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public DeprecatedObject name(String name) {
+    this.name = name;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    DeprecatedObject deprecatedObject = (DeprecatedObject) o;
+    return Objects.equals(this.name, deprecatedObject.name);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(name);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class DeprecatedObject {\n");
+    
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Dog.java

@@ -0,0 +1,98 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.Animal;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Dog extends Animal {
+  
+  @JsonbProperty("breed")
+  private String breed;
+
+  /**
+   * Get breed
+   * @return breed
+   **/
+  public String getBreed() {
+    return breed;
+  }
+
+  /**
+   * Set breed
+   */
+  public void setBreed(String breed) {
+    this.breed = breed;
+  }
+
+  public Dog breed(String breed) {
+    this.breed = breed;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Dog dog = (Dog) o;
+    return Objects.equals(this.breed, dog.breed) &&
+        super.equals(o);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(breed, super.hashCode());
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Dog {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    breed: ").append(toIndentedString(breed)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/EnumArrays.java

@@ -0,0 +1,216 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class EnumArrays  {
+  
+  @JsonbTypeSerializer(JustSymbolEnum.Serializer.class)
+  @JsonbTypeDeserializer(JustSymbolEnum.Deserializer.class)
+  public enum JustSymbolEnum {
+
+    GREATER_THAN_OR_EQUAL_TO(String.valueOf(">=")), DOLLAR(String.valueOf("$"));
+
+
+    String value;
+
+    JustSymbolEnum (String v) {
+        value = v;
+    }
+
+    public String value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<JustSymbolEnum> {
+        @Override
+        public JustSymbolEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (JustSymbolEnum b : JustSymbolEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<JustSymbolEnum> {
+        @Override
+        public void serialize(JustSymbolEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("just_symbol")
+  private JustSymbolEnum justSymbol;
+
+  @JsonbTypeSerializer(ArrayEnumEnum.Serializer.class)
+  @JsonbTypeDeserializer(ArrayEnumEnum.Deserializer.class)
+  public enum ArrayEnumEnum {
+
+    FISH(String.valueOf("fish")), CRAB(String.valueOf("crab"));
+
+
+    String value;
+
+    ArrayEnumEnum (String v) {
+        value = v;
+    }
+
+    public String value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<ArrayEnumEnum> {
+        @Override
+        public ArrayEnumEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (ArrayEnumEnum b : ArrayEnumEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<ArrayEnumEnum> {
+        @Override
+        public void serialize(ArrayEnumEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("array_enum")
+  private List<ArrayEnumEnum> arrayEnum = null;
+
+  /**
+   * Get justSymbol
+   * @return justSymbol
+   **/
+  public JustSymbolEnum getJustSymbol() {
+    return justSymbol;
+  }
+
+  /**
+   * Set justSymbol
+   */
+  public void setJustSymbol(JustSymbolEnum justSymbol) {
+    this.justSymbol = justSymbol;
+  }
+
+  public EnumArrays justSymbol(JustSymbolEnum justSymbol) {
+    this.justSymbol = justSymbol;
+    return this;
+  }
+
+  /**
+   * Get arrayEnum
+   * @return arrayEnum
+   **/
+  public List<ArrayEnumEnum> getArrayEnum() {
+    return arrayEnum;
+  }
+
+  /**
+   * Set arrayEnum
+   */
+  public void setArrayEnum(List<ArrayEnumEnum> arrayEnum) {
+    this.arrayEnum = arrayEnum;
+  }
+
+  public EnumArrays arrayEnum(List<ArrayEnumEnum> arrayEnum) {
+    this.arrayEnum = arrayEnum;
+    return this;
+  }
+
+  public EnumArrays addArrayEnumItem(ArrayEnumEnum arrayEnumItem) {
+    if (this.arrayEnum == null) {
+      this.arrayEnum = new ArrayList<>();
+    }
+    this.arrayEnum.add(arrayEnumItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    EnumArrays enumArrays = (EnumArrays) o;
+    return Objects.equals(this.justSymbol, enumArrays.justSymbol) &&
+        Objects.equals(this.arrayEnum, enumArrays.arrayEnum);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(justSymbol, arrayEnum);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class EnumArrays {\n");
+    
+    sb.append("    justSymbol: ").append(toIndentedString(justSymbol)).append("\n");
+    sb.append("    arrayEnum: ").append(toIndentedString(arrayEnum)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/EnumClass.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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+/**
+ * Gets or Sets EnumClass
+ */
+@JsonbTypeSerializer(EnumClass.Serializer.class)
+@JsonbTypeDeserializer(EnumClass.Deserializer.class)
+public enum EnumClass {
+  
+  _ABC("_abc"),
+  
+  _EFG("-efg"),
+  
+  _XYZ_("(xyz)");
+
+  private String value;
+
+  EnumClass(String value) {
+    this.value = value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  public static final class Deserializer implements JsonbDeserializer<EnumClass> {
+    @Override
+    public EnumClass deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+      return fromValue(parser.getString());
+    }
+  }
+
+  public static final class Serializer implements JsonbSerializer<EnumClass> {
+    @Override
+    public void serialize(EnumClass obj, JsonGenerator generator, SerializationContext ctx) {
+      generator.write(obj.value);
+    }
+  }
+
+  public static EnumClass fromValue(String text) {
+    for (EnumClass b : EnumClass.values()) {
+      if (String.valueOf(b.value).equals(text)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + text + "'");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/EnumTest.java

@@ -0,0 +1,443 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.OuterEnum;
+import org.openapitools.client.model.OuterEnumDefaultValue;
+import org.openapitools.client.model.OuterEnumInteger;
+import org.openapitools.client.model.OuterEnumIntegerDefaultValue;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class EnumTest  {
+  
+  @JsonbTypeSerializer(EnumStringEnum.Serializer.class)
+  @JsonbTypeDeserializer(EnumStringEnum.Deserializer.class)
+  public enum EnumStringEnum {
+
+    UPPER(String.valueOf("UPPER")), LOWER(String.valueOf("lower")), EMPTY(String.valueOf(""));
+
+
+    String value;
+
+    EnumStringEnum (String v) {
+        value = v;
+    }
+
+    public String value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<EnumStringEnum> {
+        @Override
+        public EnumStringEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (EnumStringEnum b : EnumStringEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<EnumStringEnum> {
+        @Override
+        public void serialize(EnumStringEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("enum_string")
+  private EnumStringEnum enumString;
+
+  @JsonbTypeSerializer(EnumStringRequiredEnum.Serializer.class)
+  @JsonbTypeDeserializer(EnumStringRequiredEnum.Deserializer.class)
+  public enum EnumStringRequiredEnum {
+
+    UPPER(String.valueOf("UPPER")), LOWER(String.valueOf("lower")), EMPTY(String.valueOf(""));
+
+
+    String value;
+
+    EnumStringRequiredEnum (String v) {
+        value = v;
+    }
+
+    public String value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<EnumStringRequiredEnum> {
+        @Override
+        public EnumStringRequiredEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (EnumStringRequiredEnum b : EnumStringRequiredEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<EnumStringRequiredEnum> {
+        @Override
+        public void serialize(EnumStringRequiredEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("enum_string_required")
+  private EnumStringRequiredEnum enumStringRequired;
+
+  @JsonbTypeSerializer(EnumIntegerEnum.Serializer.class)
+  @JsonbTypeDeserializer(EnumIntegerEnum.Deserializer.class)
+  public enum EnumIntegerEnum {
+
+    NUMBER_1(Integer.valueOf(1)), NUMBER_MINUS_1(Integer.valueOf(-1));
+
+
+    Integer value;
+
+    EnumIntegerEnum (Integer v) {
+        value = v;
+    }
+
+    public Integer value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<EnumIntegerEnum> {
+        @Override
+        public EnumIntegerEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (EnumIntegerEnum b : EnumIntegerEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<EnumIntegerEnum> {
+        @Override
+        public void serialize(EnumIntegerEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("enum_integer")
+  private EnumIntegerEnum enumInteger;
+
+  @JsonbTypeSerializer(EnumNumberEnum.Serializer.class)
+  @JsonbTypeDeserializer(EnumNumberEnum.Deserializer.class)
+  public enum EnumNumberEnum {
+
+    NUMBER_1_DOT_1(Double.valueOf(1.1)), NUMBER_MINUS_1_DOT_2(Double.valueOf(-1.2));
+
+
+    Double value;
+
+    EnumNumberEnum (Double v) {
+        value = v;
+    }
+
+    public Double value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<EnumNumberEnum> {
+        @Override
+        public EnumNumberEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (EnumNumberEnum b : EnumNumberEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<EnumNumberEnum> {
+        @Override
+        public void serialize(EnumNumberEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("enum_number")
+  private EnumNumberEnum enumNumber;
+
+  @JsonbProperty("outerEnum")
+  private OuterEnum outerEnum;
+
+  @JsonbProperty("outerEnumInteger")
+  private OuterEnumInteger outerEnumInteger;
+
+  @JsonbProperty("outerEnumDefaultValue")
+  private OuterEnumDefaultValue outerEnumDefaultValue = OuterEnumDefaultValue.PLACED;
+
+  @JsonbProperty("outerEnumIntegerDefaultValue")
+  private OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue = OuterEnumIntegerDefaultValue.NUMBER_0;
+
+  /**
+   * Get enumString
+   * @return enumString
+   **/
+  public EnumStringEnum getEnumString() {
+    return enumString;
+  }
+
+  /**
+   * Set enumString
+   */
+  public void setEnumString(EnumStringEnum enumString) {
+    this.enumString = enumString;
+  }
+
+  public EnumTest enumString(EnumStringEnum enumString) {
+    this.enumString = enumString;
+    return this;
+  }
+
+  /**
+   * Get enumStringRequired
+   * @return enumStringRequired
+   **/
+  public EnumStringRequiredEnum getEnumStringRequired() {
+    return enumStringRequired;
+  }
+
+  /**
+   * Set enumStringRequired
+   */
+  public void setEnumStringRequired(EnumStringRequiredEnum enumStringRequired) {
+    this.enumStringRequired = enumStringRequired;
+  }
+
+  public EnumTest enumStringRequired(EnumStringRequiredEnum enumStringRequired) {
+    this.enumStringRequired = enumStringRequired;
+    return this;
+  }
+
+  /**
+   * Get enumInteger
+   * @return enumInteger
+   **/
+  public EnumIntegerEnum getEnumInteger() {
+    return enumInteger;
+  }
+
+  /**
+   * Set enumInteger
+   */
+  public void setEnumInteger(EnumIntegerEnum enumInteger) {
+    this.enumInteger = enumInteger;
+  }
+
+  public EnumTest enumInteger(EnumIntegerEnum enumInteger) {
+    this.enumInteger = enumInteger;
+    return this;
+  }
+
+  /**
+   * Get enumNumber
+   * @return enumNumber
+   **/
+  public EnumNumberEnum getEnumNumber() {
+    return enumNumber;
+  }
+
+  /**
+   * Set enumNumber
+   */
+  public void setEnumNumber(EnumNumberEnum enumNumber) {
+    this.enumNumber = enumNumber;
+  }
+
+  public EnumTest enumNumber(EnumNumberEnum enumNumber) {
+    this.enumNumber = enumNumber;
+    return this;
+  }
+
+  /**
+   * Get outerEnum
+   * @return outerEnum
+   **/
+  public OuterEnum getOuterEnum() {
+    return outerEnum;
+  }
+
+  /**
+   * Set outerEnum
+   */
+  public void setOuterEnum(OuterEnum outerEnum) {
+    this.outerEnum = outerEnum;
+  }
+
+  public EnumTest outerEnum(OuterEnum outerEnum) {
+    this.outerEnum = outerEnum;
+    return this;
+  }
+
+  /**
+   * Get outerEnumInteger
+   * @return outerEnumInteger
+   **/
+  public OuterEnumInteger getOuterEnumInteger() {
+    return outerEnumInteger;
+  }
+
+  /**
+   * Set outerEnumInteger
+   */
+  public void setOuterEnumInteger(OuterEnumInteger outerEnumInteger) {
+    this.outerEnumInteger = outerEnumInteger;
+  }
+
+  public EnumTest outerEnumInteger(OuterEnumInteger outerEnumInteger) {
+    this.outerEnumInteger = outerEnumInteger;
+    return this;
+  }
+
+  /**
+   * Get outerEnumDefaultValue
+   * @return outerEnumDefaultValue
+   **/
+  public OuterEnumDefaultValue getOuterEnumDefaultValue() {
+    return outerEnumDefaultValue;
+  }
+
+  /**
+   * Set outerEnumDefaultValue
+   */
+  public void setOuterEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+    this.outerEnumDefaultValue = outerEnumDefaultValue;
+  }
+
+  public EnumTest outerEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+    this.outerEnumDefaultValue = outerEnumDefaultValue;
+    return this;
+  }
+
+  /**
+   * Get outerEnumIntegerDefaultValue
+   * @return outerEnumIntegerDefaultValue
+   **/
+  public OuterEnumIntegerDefaultValue getOuterEnumIntegerDefaultValue() {
+    return outerEnumIntegerDefaultValue;
+  }
+
+  /**
+   * Set outerEnumIntegerDefaultValue
+   */
+  public void setOuterEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+    this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
+  }
+
+  public EnumTest outerEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+    this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    EnumTest enumTest = (EnumTest) o;
+    return Objects.equals(this.enumString, enumTest.enumString) &&
+        Objects.equals(this.enumStringRequired, enumTest.enumStringRequired) &&
+        Objects.equals(this.enumInteger, enumTest.enumInteger) &&
+        Objects.equals(this.enumNumber, enumTest.enumNumber) &&
+        Objects.equals(this.outerEnum, enumTest.outerEnum) &&
+        Objects.equals(this.outerEnumInteger, enumTest.outerEnumInteger) &&
+        Objects.equals(this.outerEnumDefaultValue, enumTest.outerEnumDefaultValue) &&
+        Objects.equals(this.outerEnumIntegerDefaultValue, enumTest.outerEnumIntegerDefaultValue);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(enumString, enumStringRequired, enumInteger, enumNumber, outerEnum, outerEnumInteger, outerEnumDefaultValue, outerEnumIntegerDefaultValue);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class EnumTest {\n");
+    
+    sb.append("    enumString: ").append(toIndentedString(enumString)).append("\n");
+    sb.append("    enumStringRequired: ").append(toIndentedString(enumStringRequired)).append("\n");
+    sb.append("    enumInteger: ").append(toIndentedString(enumInteger)).append("\n");
+    sb.append("    enumNumber: ").append(toIndentedString(enumNumber)).append("\n");
+    sb.append("    outerEnum: ").append(toIndentedString(outerEnum)).append("\n");
+    sb.append("    outerEnumInteger: ").append(toIndentedString(outerEnumInteger)).append("\n");
+    sb.append("    outerEnumDefaultValue: ").append(toIndentedString(outerEnumDefaultValue)).append("\n");
+    sb.append("    outerEnumIntegerDefaultValue: ").append(toIndentedString(outerEnumIntegerDefaultValue)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/FakeBigDecimalMap200Response.java

@@ -0,0 +1,132 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.math.BigDecimal;
+import java.util.HashMap;
+import java.util.Map;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class FakeBigDecimalMap200Response  {
+  
+  @JsonbProperty("someId")
+  private BigDecimal someId;
+
+  @JsonbProperty("someMap")
+  private Map<String, BigDecimal> someMap = null;
+
+  /**
+   * Get someId
+   * @return someId
+   **/
+  public BigDecimal getSomeId() {
+    return someId;
+  }
+
+  /**
+   * Set someId
+   */
+  public void setSomeId(BigDecimal someId) {
+    this.someId = someId;
+  }
+
+  public FakeBigDecimalMap200Response someId(BigDecimal someId) {
+    this.someId = someId;
+    return this;
+  }
+
+  /**
+   * Get someMap
+   * @return someMap
+   **/
+  public Map<String, BigDecimal> getSomeMap() {
+    return someMap;
+  }
+
+  /**
+   * Set someMap
+   */
+  public void setSomeMap(Map<String, BigDecimal> someMap) {
+    this.someMap = someMap;
+  }
+
+  public FakeBigDecimalMap200Response someMap(Map<String, BigDecimal> someMap) {
+    this.someMap = someMap;
+    return this;
+  }
+
+  public FakeBigDecimalMap200Response putSomeMapItem(String key, BigDecimal someMapItem) {
+    if (this.someMap == null) {
+      this.someMap = new HashMap<>();
+    }
+    this.someMap.put(key, someMapItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    FakeBigDecimalMap200Response fakeBigDecimalMap200Response = (FakeBigDecimalMap200Response) o;
+    return Objects.equals(this.someId, fakeBigDecimalMap200Response.someId) &&
+        Objects.equals(this.someMap, fakeBigDecimalMap200Response.someMap);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(someId, someMap);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class FakeBigDecimalMap200Response {\n");
+    
+    sb.append("    someId: ").append(toIndentedString(someId)).append("\n");
+    sb.append("    someMap: ").append(toIndentedString(someMap)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/FileSchemaTestClass.java

@@ -0,0 +1,133 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import org.openapitools.client.model.ModelFile;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class FileSchemaTestClass  {
+  
+  @JsonbProperty("file")
+  private ModelFile _file;
+
+  @JsonbProperty("files")
+  private List<ModelFile> files = null;
+
+  /**
+   * Get _file
+   * @return _file
+   **/
+  public ModelFile getFile() {
+    return _file;
+  }
+
+  /**
+   * Set _file
+   */
+  public void setFile(ModelFile _file) {
+    this._file = _file;
+  }
+
+  public FileSchemaTestClass _file(ModelFile _file) {
+    this._file = _file;
+    return this;
+  }
+
+  /**
+   * Get files
+   * @return files
+   **/
+  public List<ModelFile> getFiles() {
+    return files;
+  }
+
+  /**
+   * Set files
+   */
+  public void setFiles(List<ModelFile> files) {
+    this.files = files;
+  }
+
+  public FileSchemaTestClass files(List<ModelFile> files) {
+    this.files = files;
+    return this;
+  }
+
+  public FileSchemaTestClass addFilesItem(ModelFile filesItem) {
+    if (this.files == null) {
+      this.files = new ArrayList<>();
+    }
+    this.files.add(filesItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    FileSchemaTestClass fileSchemaTestClass = (FileSchemaTestClass) o;
+    return Objects.equals(this._file, fileSchemaTestClass._file) &&
+        Objects.equals(this.files, fileSchemaTestClass.files);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(_file, files);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class FileSchemaTestClass {\n");
+    
+    sb.append("    _file: ").append(toIndentedString(_file)).append("\n");
+    sb.append("    files: ").append(toIndentedString(files)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Foo.java

@@ -0,0 +1,96 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class Foo  {
+  
+  @JsonbProperty("bar")
+  private String bar = "bar";
+
+  /**
+   * Get bar
+   * @return bar
+   **/
+  public String getBar() {
+    return bar;
+  }
+
+  /**
+   * Set bar
+   */
+  public void setBar(String bar) {
+    this.bar = bar;
+  }
+
+  public Foo bar(String bar) {
+    this.bar = bar;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Foo foo = (Foo) o;
+    return Objects.equals(this.bar, foo.bar);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(bar);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Foo {\n");
+    
+    sb.append("    bar: ").append(toIndentedString(bar)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/FooGetDefaultResponse.java

@@ -0,0 +1,97 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import org.openapitools.client.model.Foo;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class FooGetDefaultResponse  {
+  
+  @JsonbProperty("string")
+  private Foo string;
+
+  /**
+   * Get string
+   * @return string
+   **/
+  public Foo getString() {
+    return string;
+  }
+
+  /**
+   * Set string
+   */
+  public void setString(Foo string) {
+    this.string = string;
+  }
+
+  public FooGetDefaultResponse string(Foo string) {
+    this.string = string;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    FooGetDefaultResponse fooGetDefaultResponse = (FooGetDefaultResponse) o;
+    return Objects.equals(this.string, fooGetDefaultResponse.string);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(string);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class FooGetDefaultResponse {\n");
+    
+    sb.append("    string: ").append(toIndentedString(string)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/FormatTest.java

@@ -0,0 +1,491 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.io.File;
+import java.math.BigDecimal;
+import java.util.Date;
+import java.util.UUID;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class FormatTest  {
+  
+  @JsonbProperty("integer")
+  private Integer integer;
+
+  @JsonbProperty("int32")
+  private Integer int32;
+
+  @JsonbProperty("int64")
+  private Long int64;
+
+  @JsonbProperty("number")
+  private BigDecimal number;
+
+  @JsonbProperty("float")
+  private Float _float;
+
+  @JsonbProperty("double")
+  private Double _double;
+
+  @JsonbProperty("decimal")
+  private BigDecimal decimal;
+
+  @JsonbProperty("string")
+  private String string;
+
+  @JsonbProperty("byte")
+  private byte[] _byte;
+
+  @JsonbProperty("binary")
+  private File binary;
+
+  @JsonbProperty("date")
+  private Date date;
+
+  @JsonbProperty("dateTime")
+  private Date dateTime;
+
+  @JsonbProperty("uuid")
+  private UUID uuid;
+
+  @JsonbProperty("password")
+  private String password;
+
+ /**
+  * A string that is a 10 digit number. Can have leading zeros.
+  */
+  @JsonbProperty("pattern_with_digits")
+  private String patternWithDigits;
+
+ /**
+  * A string starting with 'image_' (case insensitive) and one to three digits following i.e. Image_01.
+  */
+  @JsonbProperty("pattern_with_digits_and_delimiter")
+  private String patternWithDigitsAndDelimiter;
+
+  /**
+   * Get integer
+   * minimum: 10
+   * maximum: 100
+   * @return integer
+   **/
+  public Integer getInteger() {
+    return integer;
+  }
+
+  /**
+   * Set integer
+   */
+  public void setInteger(Integer integer) {
+    this.integer = integer;
+  }
+
+  public FormatTest integer(Integer integer) {
+    this.integer = integer;
+    return this;
+  }
+
+  /**
+   * Get int32
+   * minimum: 20
+   * maximum: 200
+   * @return int32
+   **/
+  public Integer getInt32() {
+    return int32;
+  }
+
+  /**
+   * Set int32
+   */
+  public void setInt32(Integer int32) {
+    this.int32 = int32;
+  }
+
+  public FormatTest int32(Integer int32) {
+    this.int32 = int32;
+    return this;
+  }
+
+  /**
+   * Get int64
+   * @return int64
+   **/
+  public Long getInt64() {
+    return int64;
+  }
+
+  /**
+   * Set int64
+   */
+  public void setInt64(Long int64) {
+    this.int64 = int64;
+  }
+
+  public FormatTest int64(Long int64) {
+    this.int64 = int64;
+    return this;
+  }
+
+  /**
+   * Get number
+   * minimum: 32.1
+   * maximum: 543.2
+   * @return number
+   **/
+  public BigDecimal getNumber() {
+    return number;
+  }
+
+  /**
+   * Set number
+   */
+  public void setNumber(BigDecimal number) {
+    this.number = number;
+  }
+
+  public FormatTest number(BigDecimal number) {
+    this.number = number;
+    return this;
+  }
+
+  /**
+   * Get _float
+   * minimum: 54.3
+   * maximum: 987.6
+   * @return _float
+   **/
+  public Float getFloat() {
+    return _float;
+  }
+
+  /**
+   * Set _float
+   */
+  public void setFloat(Float _float) {
+    this._float = _float;
+  }
+
+  public FormatTest _float(Float _float) {
+    this._float = _float;
+    return this;
+  }
+
+  /**
+   * Get _double
+   * minimum: 67.8
+   * maximum: 123.4
+   * @return _double
+   **/
+  public Double getDouble() {
+    return _double;
+  }
+
+  /**
+   * Set _double
+   */
+  public void setDouble(Double _double) {
+    this._double = _double;
+  }
+
+  public FormatTest _double(Double _double) {
+    this._double = _double;
+    return this;
+  }
+
+  /**
+   * Get decimal
+   * @return decimal
+   **/
+  public BigDecimal getDecimal() {
+    return decimal;
+  }
+
+  /**
+   * Set decimal
+   */
+  public void setDecimal(BigDecimal decimal) {
+    this.decimal = decimal;
+  }
+
+  public FormatTest decimal(BigDecimal decimal) {
+    this.decimal = decimal;
+    return this;
+  }
+
+  /**
+   * Get string
+   * @return string
+   **/
+  public String getString() {
+    return string;
+  }
+
+  /**
+   * Set string
+   */
+  public void setString(String string) {
+    this.string = string;
+  }
+
+  public FormatTest string(String string) {
+    this.string = string;
+    return this;
+  }
+
+  /**
+   * Get _byte
+   * @return _byte
+   **/
+  public byte[] getByte() {
+    return _byte;
+  }
+
+  /**
+   * Set _byte
+   */
+  public void setByte(byte[] _byte) {
+    this._byte = _byte;
+  }
+
+  public FormatTest _byte(byte[] _byte) {
+    this._byte = _byte;
+    return this;
+  }
+
+  /**
+   * Get binary
+   * @return binary
+   **/
+  public File getBinary() {
+    return binary;
+  }
+
+  /**
+   * Set binary
+   */
+  public void setBinary(File binary) {
+    this.binary = binary;
+  }
+
+  public FormatTest binary(File binary) {
+    this.binary = binary;
+    return this;
+  }
+
+  /**
+   * Get date
+   * @return date
+   **/
+  public Date getDate() {
+    return date;
+  }
+
+  /**
+   * Set date
+   */
+  public void setDate(Date date) {
+    this.date = date;
+  }
+
+  public FormatTest date(Date date) {
+    this.date = date;
+    return this;
+  }
+
+  /**
+   * Get dateTime
+   * @return dateTime
+   **/
+  public Date getDateTime() {
+    return dateTime;
+  }
+
+  /**
+   * Set dateTime
+   */
+  public void setDateTime(Date dateTime) {
+    this.dateTime = dateTime;
+  }
+
+  public FormatTest dateTime(Date dateTime) {
+    this.dateTime = dateTime;
+    return this;
+  }
+
+  /**
+   * Get uuid
+   * @return uuid
+   **/
+  public UUID getUuid() {
+    return uuid;
+  }
+
+  /**
+   * Set uuid
+   */
+  public void setUuid(UUID uuid) {
+    this.uuid = uuid;
+  }
+
+  public FormatTest uuid(UUID uuid) {
+    this.uuid = uuid;
+    return this;
+  }
+
+  /**
+   * Get password
+   * @return password
+   **/
+  public String getPassword() {
+    return password;
+  }
+
+  /**
+   * Set password
+   */
+  public void setPassword(String password) {
+    this.password = password;
+  }
+
+  public FormatTest password(String password) {
+    this.password = password;
+    return this;
+  }
+
+  /**
+   * A string that is a 10 digit number. Can have leading zeros.
+   * @return patternWithDigits
+   **/
+  public String getPatternWithDigits() {
+    return patternWithDigits;
+  }
+
+  /**
+   * Set patternWithDigits
+   */
+  public void setPatternWithDigits(String patternWithDigits) {
+    this.patternWithDigits = patternWithDigits;
+  }
+
+  public FormatTest patternWithDigits(String patternWithDigits) {
+    this.patternWithDigits = patternWithDigits;
+    return this;
+  }
+
+  /**
+   * A string starting with 'image_' (case insensitive) and one to three digits following i.e. Image_01.
+   * @return patternWithDigitsAndDelimiter
+   **/
+  public String getPatternWithDigitsAndDelimiter() {
+    return patternWithDigitsAndDelimiter;
+  }
+
+  /**
+   * Set patternWithDigitsAndDelimiter
+   */
+  public void setPatternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+    this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
+  }
+
+  public FormatTest patternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+    this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    FormatTest formatTest = (FormatTest) o;
+    return Objects.equals(this.integer, formatTest.integer) &&
+        Objects.equals(this.int32, formatTest.int32) &&
+        Objects.equals(this.int64, formatTest.int64) &&
+        Objects.equals(this.number, formatTest.number) &&
+        Objects.equals(this._float, formatTest._float) &&
+        Objects.equals(this._double, formatTest._double) &&
+        Objects.equals(this.decimal, formatTest.decimal) &&
+        Objects.equals(this.string, formatTest.string) &&
+        Arrays.equals(this._byte, formatTest._byte) &&
+        Objects.equals(this.binary, formatTest.binary) &&
+        Objects.equals(this.date, formatTest.date) &&
+        Objects.equals(this.dateTime, formatTest.dateTime) &&
+        Objects.equals(this.uuid, formatTest.uuid) &&
+        Objects.equals(this.password, formatTest.password) &&
+        Objects.equals(this.patternWithDigits, formatTest.patternWithDigits) &&
+        Objects.equals(this.patternWithDigitsAndDelimiter, formatTest.patternWithDigitsAndDelimiter);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(integer, int32, int64, number, _float, _double, decimal, string, Arrays.hashCode(_byte), binary, date, dateTime, uuid, password, patternWithDigits, patternWithDigitsAndDelimiter);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class FormatTest {\n");
+    
+    sb.append("    integer: ").append(toIndentedString(integer)).append("\n");
+    sb.append("    int32: ").append(toIndentedString(int32)).append("\n");
+    sb.append("    int64: ").append(toIndentedString(int64)).append("\n");
+    sb.append("    number: ").append(toIndentedString(number)).append("\n");
+    sb.append("    _float: ").append(toIndentedString(_float)).append("\n");
+    sb.append("    _double: ").append(toIndentedString(_double)).append("\n");
+    sb.append("    decimal: ").append(toIndentedString(decimal)).append("\n");
+    sb.append("    string: ").append(toIndentedString(string)).append("\n");
+    sb.append("    _byte: ").append(toIndentedString(_byte)).append("\n");
+    sb.append("    binary: ").append(toIndentedString(binary)).append("\n");
+    sb.append("    date: ").append(toIndentedString(date)).append("\n");
+    sb.append("    dateTime: ").append(toIndentedString(dateTime)).append("\n");
+    sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
+    sb.append("    password: ").append("*").append("\n");
+    sb.append("    patternWithDigits: ").append(toIndentedString(patternWithDigits)).append("\n");
+    sb.append("    patternWithDigitsAndDelimiter: ").append(toIndentedString(patternWithDigitsAndDelimiter)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/HasOnlyReadOnly.java

@@ -0,0 +1,111 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class HasOnlyReadOnly  {
+  
+  @JsonbProperty("bar")
+  private String bar;
+
+  @JsonbProperty("foo")
+  private String foo;
+
+  public HasOnlyReadOnly() {
+  }
+
+ @JsonbCreator
+  public HasOnlyReadOnly(
+    @JsonbProperty(value = "bar", nillable = true) String bar, 
+    @JsonbProperty(value = "foo", nillable = true) String foo
+  ) {
+    this.bar = bar;
+    this.foo = foo;
+  }
+  
+  /**
+   * Get bar
+   * @return bar
+   **/
+  public String getBar() {
+    return bar;
+  }
+
+
+  /**
+   * Get foo
+   * @return foo
+   **/
+  public String getFoo() {
+    return foo;
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    HasOnlyReadOnly hasOnlyReadOnly = (HasOnlyReadOnly) o;
+    return Objects.equals(this.bar, hasOnlyReadOnly.bar) &&
+        Objects.equals(this.foo, hasOnlyReadOnly.foo);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(bar, foo);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class HasOnlyReadOnly {\n");
+    
+    sb.append("    bar: ").append(toIndentedString(bar)).append("\n");
+    sb.append("    foo: ").append(toIndentedString(foo)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/HealthCheckResult.java

@@ -0,0 +1,99 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+/**
+  * Just a string to inform instance is up and running. Make it nullable in hope to get it as pointer in generated model.
+  */
+
+public class HealthCheckResult  {
+  
+  @JsonbProperty("NullableMessage")
+  private String nullableMessage;
+
+  /**
+   * Get nullableMessage
+   * @return nullableMessage
+   **/
+  public String getNullableMessage() {
+    return nullableMessage;
+  }
+
+  /**
+   * Set nullableMessage
+   */
+  public void setNullableMessage(String nullableMessage) {
+    this.nullableMessage = nullableMessage;
+  }
+
+  public HealthCheckResult nullableMessage(String nullableMessage) {
+    this.nullableMessage = nullableMessage;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    HealthCheckResult healthCheckResult = (HealthCheckResult) o;
+    return Objects.equals(this.nullableMessage, healthCheckResult.nullableMessage);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(nullableMessage);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class HealthCheckResult {\n");
+    
+    sb.append("    nullableMessage: ").append(toIndentedString(nullableMessage)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/MapTest.java

@@ -0,0 +1,247 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class MapTest  {
+  
+  @JsonbProperty("map_map_of_string")
+  private Map<String, Map<String, String>> mapMapOfString = null;
+
+  @JsonbTypeSerializer(InnerEnum.Serializer.class)
+  @JsonbTypeDeserializer(InnerEnum.Deserializer.class)
+  public enum InnerEnum {
+
+    UPPER(String.valueOf("UPPER")), LOWER(String.valueOf("lower"));
+
+
+    String value;
+
+    InnerEnum (String v) {
+        value = v;
+    }
+
+    public String value() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(value);
+    }
+
+    public static final class Deserializer implements JsonbDeserializer<InnerEnum> {
+        @Override
+        public InnerEnum deserialize(JsonParser parser, DeserializationContext ctx, Type rtType) {
+            for (InnerEnum b : InnerEnum.values()) {
+                if (String.valueOf(b.value).equals(parser.getString())) {
+                    return b;
+                }
+            }
+            throw new IllegalArgumentException("Unexpected value '" + parser.getString() + "'");
+        }
+    }
+
+    public static final class Serializer implements JsonbSerializer<InnerEnum> {
+        @Override
+        public void serialize(InnerEnum obj, JsonGenerator generator, SerializationContext ctx) {
+            generator.write(obj.value);
+        }
+    }
+  }
+
+  @JsonbProperty("map_of_enum_string")
+  private Map<String, InnerEnum> mapOfEnumString = null;
+
+  @JsonbProperty("direct_map")
+  private Map<String, Boolean> directMap = null;
+
+  @JsonbProperty("indirect_map")
+  private Map<String, Boolean> indirectMap = null;
+
+  /**
+   * Get mapMapOfString
+   * @return mapMapOfString
+   **/
+  public Map<String, Map<String, String>> getMapMapOfString() {
+    return mapMapOfString;
+  }
+
+  /**
+   * Set mapMapOfString
+   */
+  public void setMapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+    this.mapMapOfString = mapMapOfString;
+  }
+
+  public MapTest mapMapOfString(Map<String, Map<String, String>> mapMapOfString) {
+    this.mapMapOfString = mapMapOfString;
+    return this;
+  }
+
+  public MapTest putMapMapOfStringItem(String key, Map<String, String> mapMapOfStringItem) {
+    if (this.mapMapOfString == null) {
+      this.mapMapOfString = new HashMap<>();
+    }
+    this.mapMapOfString.put(key, mapMapOfStringItem);
+    return this;
+  }
+
+  /**
+   * Get mapOfEnumString
+   * @return mapOfEnumString
+   **/
+  public Map<String, InnerEnum> getMapOfEnumString() {
+    return mapOfEnumString;
+  }
+
+  /**
+   * Set mapOfEnumString
+   */
+  public void setMapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+    this.mapOfEnumString = mapOfEnumString;
+  }
+
+  public MapTest mapOfEnumString(Map<String, InnerEnum> mapOfEnumString) {
+    this.mapOfEnumString = mapOfEnumString;
+    return this;
+  }
+
+  public MapTest putMapOfEnumStringItem(String key, InnerEnum mapOfEnumStringItem) {
+    if (this.mapOfEnumString == null) {
+      this.mapOfEnumString = new HashMap<>();
+    }
+    this.mapOfEnumString.put(key, mapOfEnumStringItem);
+    return this;
+  }
+
+  /**
+   * Get directMap
+   * @return directMap
+   **/
+  public Map<String, Boolean> getDirectMap() {
+    return directMap;
+  }
+
+  /**
+   * Set directMap
+   */
+  public void setDirectMap(Map<String, Boolean> directMap) {
+    this.directMap = directMap;
+  }
+
+  public MapTest directMap(Map<String, Boolean> directMap) {
+    this.directMap = directMap;
+    return this;
+  }
+
+  public MapTest putDirectMapItem(String key, Boolean directMapItem) {
+    if (this.directMap == null) {
+      this.directMap = new HashMap<>();
+    }
+    this.directMap.put(key, directMapItem);
+    return this;
+  }
+
+  /**
+   * Get indirectMap
+   * @return indirectMap
+   **/
+  public Map<String, Boolean> getIndirectMap() {
+    return indirectMap;
+  }
+
+  /**
+   * Set indirectMap
+   */
+  public void setIndirectMap(Map<String, Boolean> indirectMap) {
+    this.indirectMap = indirectMap;
+  }
+
+  public MapTest indirectMap(Map<String, Boolean> indirectMap) {
+    this.indirectMap = indirectMap;
+    return this;
+  }
+
+  public MapTest putIndirectMapItem(String key, Boolean indirectMapItem) {
+    if (this.indirectMap == null) {
+      this.indirectMap = new HashMap<>();
+    }
+    this.indirectMap.put(key, indirectMapItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    MapTest mapTest = (MapTest) o;
+    return Objects.equals(this.mapMapOfString, mapTest.mapMapOfString) &&
+        Objects.equals(this.mapOfEnumString, mapTest.mapOfEnumString) &&
+        Objects.equals(this.directMap, mapTest.directMap) &&
+        Objects.equals(this.indirectMap, mapTest.indirectMap);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(mapMapOfString, mapOfEnumString, directMap, indirectMap);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class MapTest {\n");
+    
+    sb.append("    mapMapOfString: ").append(toIndentedString(mapMapOfString)).append("\n");
+    sb.append("    mapOfEnumString: ").append(toIndentedString(mapOfEnumString)).append("\n");
+    sb.append("    directMap: ").append(toIndentedString(directMap)).append("\n");
+    sb.append("    indirectMap: ").append(toIndentedString(indirectMap)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/MixedPropertiesAndAdditionalPropertiesClass.java

@@ -0,0 +1,159 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+import org.openapitools.client.model.Animal;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class MixedPropertiesAndAdditionalPropertiesClass  {
+  
+  @JsonbProperty("uuid")
+  private UUID uuid;
+
+  @JsonbProperty("dateTime")
+  private Date dateTime;
+
+  @JsonbProperty("map")
+  private Map<String, Animal> map = null;
+
+  /**
+   * Get uuid
+   * @return uuid
+   **/
+  public UUID getUuid() {
+    return uuid;
+  }
+
+  /**
+   * Set uuid
+   */
+  public void setUuid(UUID uuid) {
+    this.uuid = uuid;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass uuid(UUID uuid) {
+    this.uuid = uuid;
+    return this;
+  }
+
+  /**
+   * Get dateTime
+   * @return dateTime
+   **/
+  public Date getDateTime() {
+    return dateTime;
+  }
+
+  /**
+   * Set dateTime
+   */
+  public void setDateTime(Date dateTime) {
+    this.dateTime = dateTime;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass dateTime(Date dateTime) {
+    this.dateTime = dateTime;
+    return this;
+  }
+
+  /**
+   * Get map
+   * @return map
+   **/
+  public Map<String, Animal> getMap() {
+    return map;
+  }
+
+  /**
+   * Set map
+   */
+  public void setMap(Map<String, Animal> map) {
+    this.map = map;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass map(Map<String, Animal> map) {
+    this.map = map;
+    return this;
+  }
+
+  public MixedPropertiesAndAdditionalPropertiesClass putMapItem(String key, Animal mapItem) {
+    if (this.map == null) {
+      this.map = new HashMap<>();
+    }
+    this.map.put(key, mapItem);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    MixedPropertiesAndAdditionalPropertiesClass mixedPropertiesAndAdditionalPropertiesClass = (MixedPropertiesAndAdditionalPropertiesClass) o;
+    return Objects.equals(this.uuid, mixedPropertiesAndAdditionalPropertiesClass.uuid) &&
+        Objects.equals(this.dateTime, mixedPropertiesAndAdditionalPropertiesClass.dateTime) &&
+        Objects.equals(this.map, mixedPropertiesAndAdditionalPropertiesClass.map);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(uuid, dateTime, map);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class MixedPropertiesAndAdditionalPropertiesClass {\n");
+    
+    sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
+    sb.append("    dateTime: ").append(toIndentedString(dateTime)).append("\n");
+    sb.append("    map: ").append(toIndentedString(map)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/Model200Response.java

@@ -0,0 +1,124 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+/**
+  * Model for testing model name starting with number
+  */
+
+public class Model200Response  {
+  
+  @JsonbProperty("name")
+  private Integer name;
+
+  @JsonbProperty("class")
+  private String propertyClass;
+
+  /**
+   * Get name
+   * @return name
+   **/
+  public Integer getName() {
+    return name;
+  }
+
+  /**
+   * Set name
+   */
+  public void setName(Integer name) {
+    this.name = name;
+  }
+
+  public Model200Response name(Integer name) {
+    this.name = name;
+    return this;
+  }
+
+  /**
+   * Get propertyClass
+   * @return propertyClass
+   **/
+  public String getPropertyClass() {
+    return propertyClass;
+  }
+
+  /**
+   * Set propertyClass
+   */
+  public void setPropertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+  }
+
+  public Model200Response propertyClass(String propertyClass) {
+    this.propertyClass = propertyClass;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    Model200Response _200response = (Model200Response) o;
+    return Objects.equals(this.name, _200response.name) &&
+        Objects.equals(this.propertyClass, _200response.propertyClass);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(name, propertyClass);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class Model200Response {\n");
+    
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
+    sb.append("    propertyClass: ").append(toIndentedString(propertyClass)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ModelApiResponse.java

@@ -1,6 +1,6 @@
 /**
  * OpenAPI Petstore
- * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ * 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
  * 
@@ -24,10 +24,8 @@ import javax.json.bind.serializer.SerializationContext;
 import javax.json.stream.JsonGenerator;
 import javax.json.stream.JsonParser;
 import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
 
-/**
-  * Describes the result of uploading an image resource
-  */
 
 public class ModelApiResponse  {
   

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ModelFile.java

@@ -0,0 +1,102 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+/**
+  * Must be named `File` for test.
+  */
+
+public class ModelFile  {
+  
+ /**
+  * Test capitalization
+  */
+  @JsonbProperty("sourceURI")
+  private String sourceURI;
+
+  /**
+   * Test capitalization
+   * @return sourceURI
+   **/
+  public String getSourceURI() {
+    return sourceURI;
+  }
+
+  /**
+   * Set sourceURI
+   */
+  public void setSourceURI(String sourceURI) {
+    this.sourceURI = sourceURI;
+  }
+
+  public ModelFile sourceURI(String sourceURI) {
+    this.sourceURI = sourceURI;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ModelFile _file = (ModelFile) o;
+    return Objects.equals(this.sourceURI, _file.sourceURI);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(sourceURI);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ModelFile {\n");
+    
+    sb.append("    sourceURI: ").append(toIndentedString(sourceURI)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ModelList.java

@@ -0,0 +1,96 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+
+public class ModelList  {
+  
+  @JsonbProperty("123-list")
+  private String _123list;
+
+  /**
+   * Get _123list
+   * @return _123list
+   **/
+  public String get123list() {
+    return _123list;
+  }
+
+  /**
+   * Set _123list
+   */
+  public void set123list(String _123list) {
+    this._123list = _123list;
+  }
+
+  public ModelList _123list(String _123list) {
+    this._123list = _123list;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ModelList _list = (ModelList) o;
+    return Objects.equals(this._123list, _list._123list);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(_123list);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ModelList {\n");
+    
+    sb.append("    _123list: ").append(toIndentedString(_123list)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+

samples/client/petstore/java/microprofile-rest-client/src/main/java/org/openapitools/client/model/ModelReturn.java

@@ -0,0 +1,99 @@
+/**
+ * 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.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import java.lang.reflect.Type;
+import javax.json.bind.annotation.JsonbTypeDeserializer;
+import javax.json.bind.annotation.JsonbTypeSerializer;
+import javax.json.bind.serializer.DeserializationContext;
+import javax.json.bind.serializer.JsonbDeserializer;
+import javax.json.bind.serializer.JsonbSerializer;
+import javax.json.bind.serializer.SerializationContext;
+import javax.json.stream.JsonGenerator;
+import javax.json.stream.JsonParser;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbCreator;
+
+/**
+  * Model for testing reserved words
+  */
+
+public class ModelReturn  {
+  
+  @JsonbProperty("return")
+  private Integer _return;
+
+  /**
+   * Get _return
+   * @return _return
+   **/
+  public Integer getReturn() {
+    return _return;
+  }
+
+  /**
+   * Set _return
+   */
+  public void setReturn(Integer _return) {
+    this._return = _return;
+  }
+
+  public ModelReturn _return(Integer _return) {
+    this._return = _return;
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ModelReturn _return = (ModelReturn) o;
+    return Objects.equals(this._return, _return._return);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(_return);
+  }
+
+  /**
+   * Create a string representation of this pojo.
+   */
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ModelReturn {\n");
+    
+    sb.append("    _return: ").append(toIndentedString(_return)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private static String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+}
+