Improve Java native, apache-httpclient with better spec (#14109)

* improve java native, apache client with better spec

* fix java native async tests

* regenerate java native tests

bin/configs/java-apache-httpclient.yaml

@@ -1,7 +1,7 @@
 generatorName: java
 outputDir: samples/client/petstore/java/apache-httpclient
 library: apache-httpclient
-inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
 templateDir: modules/openapi-generator/src/main/resources/Java
 additionalProperties:
   artifactId: petstore-apache-httpclient

bin/configs/java-native-async.yaml

@@ -1,7 +1,7 @@
 generatorName: java
 outputDir: samples/client/petstore/java/native-async
 library: native
-inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
 templateDir: modules/openapi-generator/src/main/resources/Java
 additionalProperties:
   artifactId: petstore-native

bin/configs/java-native.yaml

@@ -1,7 +1,7 @@
 generatorName: java
 outputDir: samples/client/petstore/java/native
 library: native
-inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
 templateDir: modules/openapi-generator/src/main/resources/Java
 additionalProperties:
   artifactId: petstore-native

modules/openapi-generator/src/main/resources/Java/libraries/apache-httpclient/pom.mustache

@@ -311,6 +311,13 @@
                 <scope>provided</scope>
             </dependency>
         {{/parcelableModel}}
+        {{#openApiNullable}}
+        <dependency>
+            <groupId>org.openapitools</groupId>
+            <artifactId>jackson-databind-nullable</artifactId>
+            <version>${jackson-databind-nullable-version}</version>
+        </dependency>
+        {{/openApiNullable}}
         <dependency>
             <groupId>jakarta.annotation</groupId>
             <artifactId>jakarta.annotation-api</artifactId>
@@ -331,6 +338,9 @@
         <httpclient-version>4.5.13</httpclient-version>
         <jackson-version>2.13.4</jackson-version>
         <jackson-databind-version>2.13.4.2</jackson-databind-version>
+{{#openApiNullable}}
+        <jackson-databind-nullable-version>0.2.4</jackson-databind-nullable-version>
+{{/openApiNullable}}
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
 {{#useBeanValidation}}
         <beanvalidation-version>2.0.2</beanvalidation-version>

samples/client/petstore/java/apache-httpclient/.openapi-generator/FILES

@@ -5,27 +5,21 @@ README.md
 api/openapi.yaml
 build.gradle
 build.sbt
-docs/AdditionalPropertiesAnyType.md
-docs/AdditionalPropertiesArray.md
-docs/AdditionalPropertiesBoolean.md
 docs/AdditionalPropertiesClass.md
-docs/AdditionalPropertiesInteger.md
+docs/AllOfWithSingleRef.md
-docs/AdditionalPropertiesNumber.md
-docs/AdditionalPropertiesObject.md
-docs/AdditionalPropertiesString.md
 docs/Animal.md
 docs/AnotherFakeApi.md
 docs/ArrayOfArrayOfNumberOnly.md
 docs/ArrayOfNumberOnly.md
 docs/ArrayTest.md
-docs/BigCat.md
-docs/BigCatAllOf.md
 docs/Capitalization.md
 docs/Cat.md
 docs/CatAllOf.md
 docs/Category.md
 docs/ClassModel.md
 docs/Client.md
+docs/DefaultApi.md
+docs/DeprecatedObject.md
 docs/Dog.md
 docs/DogAllOf.md
 docs/EnumArrays.md
@@ -34,8 +28,11 @@ docs/EnumTest.md
 docs/FakeApi.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
@@ -44,21 +41,25 @@ 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/Pet.md
 docs/PetApi.md
 docs/ReadOnlyFirst.md
+docs/SingleRefType.md
 docs/SpecialModelName.md
 docs/StoreApi.md
 docs/Tag.md
-docs/TypeHolderDefault.md
-docs/TypeHolderExample.md
 docs/User.md
 docs/UserApi.md
-docs/XmlItem.md
 git_push.sh
 gradle.properties
 gradle/wrapper/gradle-wrapper.jar
@@ -78,6 +79,7 @@ src/main/java/org/openapitools/client/ServerConfiguration.java
 src/main/java/org/openapitools/client/ServerVariable.java
 src/main/java/org/openapitools/client/StringUtil.java
 src/main/java/org/openapitools/client/api/AnotherFakeApi.java
+src/main/java/org/openapitools/client/api/DefaultApi.java
 src/main/java/org/openapitools/client/api/FakeApi.java
 src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java
 src/main/java/org/openapitools/client/api/PetApi.java
@@ -89,34 +91,30 @@ src/main/java/org/openapitools/client/auth/HttpBasicAuth.java
 src/main/java/org/openapitools/client/auth/HttpBearerAuth.java
 src/main/java/org/openapitools/client/auth/OAuth.java
 src/main/java/org/openapitools/client/auth/OAuthFlow.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
 src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+src/main/java/org/openapitools/client/model/AllOfWithSingleRef.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesString.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/BigCat.java
-src/main/java/org/openapitools/client/model/BigCatAllOf.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/CatAllOf.java
 src/main/java/org/openapitools/client/model/Category.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/DogAllOf.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/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
@@ -125,15 +123,19 @@ 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/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/TypeHolderDefault.java
-src/main/java/org/openapitools/client/model/TypeHolderExample.java
 src/main/java/org/openapitools/client/model/User.java
-src/main/java/org/openapitools/client/model/XmlItem.java

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

@@ -84,9 +84,9 @@ public class AnotherFakeApiExample {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
         
         AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            Client result = apiInstance.call123testSpecialTags(body);
+            Client result = apiInstance.call123testSpecialTags(client);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
@@ -107,15 +107,19 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 Class | Method | HTTP request | Description
 ------------ | ------------- | ------------- | -------------
 *AnotherFakeApi* | [**call123testSpecialTags**](docs/AnotherFakeApi.md#call123testSpecialTags) | **PATCH** /another-fake/dummy | To test special tags
-*FakeApi* | [**createXmlItem**](docs/FakeApi.md#createXmlItem) | **POST** /fake/create_xml_item | creates an XmlItem
+*DefaultApi* | [**fooGet**](docs/DefaultApi.md#fooGet) | **GET** /foo | 
+*FakeApi* | [**fakeHealthGet**](docs/FakeApi.md#fakeHealthGet) | **GET** /fake/health | Health check endpoint
+*FakeApi* | [**fakeHttpSignatureTest**](docs/FakeApi.md#fakeHttpSignatureTest) | **GET** /fake/http-signature-test | test http signature authentication
 *FakeApi* | [**fakeOuterBooleanSerialize**](docs/FakeApi.md#fakeOuterBooleanSerialize) | **POST** /fake/outer/boolean | 
 *FakeApi* | [**fakeOuterCompositeSerialize**](docs/FakeApi.md#fakeOuterCompositeSerialize) | **POST** /fake/outer/composite | 
 *FakeApi* | [**fakeOuterNumberSerialize**](docs/FakeApi.md#fakeOuterNumberSerialize) | **POST** /fake/outer/number | 
 *FakeApi* | [**fakeOuterStringSerialize**](docs/FakeApi.md#fakeOuterStringSerialize) | **POST** /fake/outer/string | 
+*FakeApi* | [**fakePropertyEnumIntegerSerialize**](docs/FakeApi.md#fakePropertyEnumIntegerSerialize) | **POST** /fake/property/enum-int | 
+*FakeApi* | [**testBodyWithBinary**](docs/FakeApi.md#testBodyWithBinary) | **PUT** /fake/body-with-binary | 
 *FakeApi* | [**testBodyWithFileSchema**](docs/FakeApi.md#testBodyWithFileSchema) | **PUT** /fake/body-with-file-schema | 
 *FakeApi* | [**testBodyWithQueryParams**](docs/FakeApi.md#testBodyWithQueryParams) | **PUT** /fake/body-with-query-params | 
 *FakeApi* | [**testClientModel**](docs/FakeApi.md#testClientModel) | **PATCH** /fake | To test \"client\" model
-*FakeApi* | [**testEndpointParameters**](docs/FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+*FakeApi* | [**testEndpointParameters**](docs/FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 *FakeApi* | [**testEnumParameters**](docs/FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters
 *FakeApi* | [**testGroupParameters**](docs/FakeApi.md#testGroupParameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional)
 *FakeApi* | [**testInlineAdditionalProperties**](docs/FakeApi.md#testInlineAdditionalProperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties
@@ -147,34 +151,30 @@ Class | Method | HTTP request | Description
 
 ## Documentation for Models
 
- - [AdditionalPropertiesAnyType](docs/AdditionalPropertiesAnyType.md)
- - [AdditionalPropertiesArray](docs/AdditionalPropertiesArray.md)
- - [AdditionalPropertiesBoolean](docs/AdditionalPropertiesBoolean.md)
  - [AdditionalPropertiesClass](docs/AdditionalPropertiesClass.md)
- - [AdditionalPropertiesInteger](docs/AdditionalPropertiesInteger.md)
+ - [AllOfWithSingleRef](docs/AllOfWithSingleRef.md)
- - [AdditionalPropertiesNumber](docs/AdditionalPropertiesNumber.md)
- - [AdditionalPropertiesObject](docs/AdditionalPropertiesObject.md)
- - [AdditionalPropertiesString](docs/AdditionalPropertiesString.md)
  - [Animal](docs/Animal.md)
  - [ArrayOfArrayOfNumberOnly](docs/ArrayOfArrayOfNumberOnly.md)
  - [ArrayOfNumberOnly](docs/ArrayOfNumberOnly.md)
  - [ArrayTest](docs/ArrayTest.md)
- - [BigCat](docs/BigCat.md)
- - [BigCatAllOf](docs/BigCatAllOf.md)
  - [Capitalization](docs/Capitalization.md)
  - [Cat](docs/Cat.md)
  - [CatAllOf](docs/CatAllOf.md)
  - [Category](docs/Category.md)
  - [ClassModel](docs/ClassModel.md)
  - [Client](docs/Client.md)
+ - [DeprecatedObject](docs/DeprecatedObject.md)
  - [Dog](docs/Dog.md)
  - [DogAllOf](docs/DogAllOf.md)
  - [EnumArrays](docs/EnumArrays.md)
  - [EnumClass](docs/EnumClass.md)
  - [EnumTest](docs/EnumTest.md)
  - [FileSchemaTestClass](docs/FileSchemaTestClass.md)
+ - [Foo](docs/Foo.md)
+ - [FooGetDefaultResponse](docs/FooGetDefaultResponse.md)
  - [FormatTest](docs/FormatTest.md)
  - [HasOnlyReadOnly](docs/HasOnlyReadOnly.md)
+ - [HealthCheckResult](docs/HealthCheckResult.md)
  - [MapTest](docs/MapTest.md)
  - [MixedPropertiesAndAdditionalPropertiesClass](docs/MixedPropertiesAndAdditionalPropertiesClass.md)
  - [Model200Response](docs/Model200Response.md)
@@ -183,18 +183,22 @@ Class | Method | HTTP request | Description
  - [ModelList](docs/ModelList.md)
  - [ModelReturn](docs/ModelReturn.md)
  - [Name](docs/Name.md)
+ - [NullableClass](docs/NullableClass.md)
  - [NumberOnly](docs/NumberOnly.md)
+ - [ObjectWithDeprecatedFields](docs/ObjectWithDeprecatedFields.md)
  - [Order](docs/Order.md)
  - [OuterComposite](docs/OuterComposite.md)
  - [OuterEnum](docs/OuterEnum.md)
+ - [OuterEnumDefaultValue](docs/OuterEnumDefaultValue.md)
+ - [OuterEnumInteger](docs/OuterEnumInteger.md)
+ - [OuterEnumIntegerDefaultValue](docs/OuterEnumIntegerDefaultValue.md)
+ - [OuterObjectWithEnumProperty](docs/OuterObjectWithEnumProperty.md)
  - [Pet](docs/Pet.md)
  - [ReadOnlyFirst](docs/ReadOnlyFirst.md)
+ - [SingleRefType](docs/SingleRefType.md)
  - [SpecialModelName](docs/SpecialModelName.md)
  - [Tag](docs/Tag.md)
- - [TypeHolderDefault](docs/TypeHolderDefault.md)
- - [TypeHolderExample](docs/TypeHolderExample.md)
  - [User](docs/User.md)
- - [XmlItem](docs/XmlItem.md)
 
 
 ## Documentation for Authorization
@@ -214,9 +218,19 @@ Authentication schemes defined for the API:
 - **API key parameter name**: api_key_query
 - **Location**: URL query string
 
+### bearer_test
+
+
+- **Type**: HTTP basic authentication
+
 ### http_basic_test
 
 
+- **Type**: HTTP basic authentication
+
+### http_signature_test
+
+
 - **Type**: HTTP basic authentication
 
 ### petstore_auth

samples/client/petstore/java/apache-httpclient/docs/AdditionalPropertiesClass.md

@@ -7,17 +7,8 @@
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
-|**mapString** | **Map<String, String>** |  |  [optional] |
+|**mapProperty** | **Map<String, String>** |  |  [optional] |
-|**mapNumber** | **Map<String, BigDecimal>** |  |  [optional] |
+|**mapOfMapProperty** | **Map<String, Map<String, String>>** |  |  [optional] |
-|**mapInteger** | **Map<String, Integer>** |  |  [optional] |
-|**mapBoolean** | **Map<String, Boolean>** |  |  [optional] |
-|**mapArrayInteger** | **Map<String, List<Integer>>** |  |  [optional] |
-|**mapArrayAnytype** | **Map<String, List<Object>>** |  |  [optional] |
-|**mapMapString** | **Map<String, Map<String, String>>** |  |  [optional] |
-|**mapMapAnytype** | **Map<String, Map<String, Object>>** |  |  [optional] |
-|**anytype1** | **Object** |  |  [optional] |
-|**anytype2** | **Object** |  |  [optional] |
-|**anytype3** | **Object** |  |  [optional] |
 
 
 

samples/client/petstore/java/apache-httpclient/docs/AllOfWithSingleRef.md

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

samples/client/petstore/java/apache-httpclient/docs/AnotherFakeApi.md

@@ -10,7 +10,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## call123testSpecialTags
 
-> Client call123testSpecialTags(body)
+> Client call123testSpecialTags(client)
 
 To test special tags
 
@@ -32,9 +32,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            Client result = apiInstance.call123testSpecialTags(body);
+            Client result = apiInstance.call123testSpecialTags(client);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
@@ -52,7 +52,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 

samples/client/petstore/java/apache-httpclient/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 |
+|-------------|-------------|------------------|
+| **0** | response |  -  |
+

samples/client/petstore/java/apache-httpclient/docs/DeprecatedObject.md

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

samples/client/petstore/java/apache-httpclient/docs/EnumTest.md

@@ -12,6 +12,9 @@
 |**enumInteger** | [**EnumIntegerEnum**](#EnumIntegerEnum) |  |  [optional] |
 |**enumNumber** | [**EnumNumberEnum**](#EnumNumberEnum) |  |  [optional] |
 |**outerEnum** | **OuterEnum** |  |  [optional] |
+|**outerEnumInteger** | **OuterEnumInteger** |  |  [optional] |
+|**outerEnumDefaultValue** | **OuterEnumDefaultValue** |  |  [optional] |
+|**outerEnumIntegerDefaultValue** | **OuterEnumIntegerDefaultValue** |  |  [optional] |
 
 
 

samples/client/petstore/java/apache-httpclient/docs/FakeApi.md

@@ -4,15 +4,18 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 | Method | HTTP request | Description |
 |------------- | ------------- | -------------|
-| [**createXmlItem**](FakeApi.md#createXmlItem) | **POST** /fake/create_xml_item | creates an XmlItem |
+| [**fakeHealthGet**](FakeApi.md#fakeHealthGet) | **GET** /fake/health | Health check endpoint |
+| [**fakeHttpSignatureTest**](FakeApi.md#fakeHttpSignatureTest) | **GET** /fake/http-signature-test | test http signature authentication |
 | [**fakeOuterBooleanSerialize**](FakeApi.md#fakeOuterBooleanSerialize) | **POST** /fake/outer/boolean |  |
 | [**fakeOuterCompositeSerialize**](FakeApi.md#fakeOuterCompositeSerialize) | **POST** /fake/outer/composite |  |
 | [**fakeOuterNumberSerialize**](FakeApi.md#fakeOuterNumberSerialize) | **POST** /fake/outer/number |  |
 | [**fakeOuterStringSerialize**](FakeApi.md#fakeOuterStringSerialize) | **POST** /fake/outer/string |  |
+| [**fakePropertyEnumIntegerSerialize**](FakeApi.md#fakePropertyEnumIntegerSerialize) | **POST** /fake/property/enum-int |  |
+| [**testBodyWithBinary**](FakeApi.md#testBodyWithBinary) | **PUT** /fake/body-with-binary |  |
 | [**testBodyWithFileSchema**](FakeApi.md#testBodyWithFileSchema) | **PUT** /fake/body-with-file-schema |  |
 | [**testBodyWithQueryParams**](FakeApi.md#testBodyWithQueryParams) | **PUT** /fake/body-with-query-params |  |
 | [**testClientModel**](FakeApi.md#testClientModel) | **PATCH** /fake | To test \"client\" model |
-| [**testEndpointParameters**](FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트 |
+| [**testEndpointParameters**](FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  |
 | [**testEnumParameters**](FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters |
 | [**testGroupParameters**](FakeApi.md#testGroupParameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional) |
 | [**testInlineAdditionalProperties**](FakeApi.md#testInlineAdditionalProperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties |
@@ -21,13 +24,11 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 
 
-## createXmlItem
+## fakeHealthGet
 
-> createXmlItem(xmlItem)
+> HealthCheckResult fakeHealthGet()
 
-creates an XmlItem
+Health check endpoint
-
-this route creates an XmlItem
 
 ### Example
 
@@ -45,11 +46,75 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
-        XmlItem xmlItem = new XmlItem(); // XmlItem | XmlItem Body
         try {
-            apiInstance.createXmlItem(xmlItem);
+            HealthCheckResult result = apiInstance.fakeHealthGet();
+            System.out.println(result);
         } catch (ApiException e) {
-            System.err.println("Exception when calling FakeApi#createXmlItem");
+            System.err.println("Exception when calling FakeApi#fakeHealthGet");
+            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
+
+[**HealthCheckResult**](HealthCheckResult.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | The instance started successfully |  -  |
+
+
+## fakeHttpSignatureTest
+
+> fakeHttpSignatureTest(pet, query1, header1)
+
+test http signature authentication
+
+### 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.FakeApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
+        
+
+        FakeApi apiInstance = new FakeApi(defaultClient);
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
+        String query1 = "query1_example"; // String | query parameter
+        String header1 = "header1_example"; // String | header parameter
+        try {
+            apiInstance.fakeHttpSignatureTest(pet, query1, header1);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling FakeApi#fakeHttpSignatureTest");
             System.err.println("Status code: " + e.getCode());
             System.err.println("Reason: " + e.getResponseBody());
             System.err.println("Response headers: " + e.getResponseHeaders());
@@ -64,7 +129,9 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **xmlItem** | [**XmlItem**](XmlItem.md)| XmlItem Body | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **query1** | **String**| query parameter | [optional] |
+| **header1** | **String**| header parameter | [optional] |
 
 ### Return type
 
@@ -72,18 +139,18 @@ null (empty response body)
 
 ### Authorization
 
-No authorization required
+[http_signature_test](../README.md#http_signature_test)
 
 ### HTTP request headers
 
-- **Content-Type**: application/xml, application/xml; charset=utf-8, application/xml; charset=utf-16, text/xml, text/xml; charset=utf-8, text/xml; charset=utf-16
+- **Content-Type**: application/json, application/xml
 - **Accept**: Not defined
 
 
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | The instance started successfully |  -  |
 
 
 ## fakeOuterBooleanSerialize
@@ -142,7 +209,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: */*
 
 
@@ -154,7 +221,7 @@ No authorization required
 
 ## fakeOuterCompositeSerialize
 
-> OuterComposite fakeOuterCompositeSerialize(body)
+> OuterComposite fakeOuterCompositeSerialize(outerComposite)
 
 
 
@@ -176,9 +243,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
-        OuterComposite body = new OuterComposite(); // OuterComposite | Input composite as post body
+        OuterComposite outerComposite = new OuterComposite(); // OuterComposite | Input composite as post body
         try {
-            OuterComposite result = apiInstance.fakeOuterCompositeSerialize(body);
+            OuterComposite result = apiInstance.fakeOuterCompositeSerialize(outerComposite);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#fakeOuterCompositeSerialize");
@@ -196,7 +263,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**OuterComposite**](OuterComposite.md)| Input composite as post body | [optional] |
+| **outerComposite** | [**OuterComposite**](OuterComposite.md)| Input composite as post body | [optional] |
 
 ### Return type
 
@@ -208,7 +275,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: */*
 
 
@@ -274,7 +341,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: */*
 
 
@@ -340,7 +407,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: */*
 
 
@@ -350,13 +417,13 @@ No authorization required
 | **200** | Output string |  -  |
 
 
-## testBodyWithFileSchema
+## fakePropertyEnumIntegerSerialize
 
-> testBodyWithFileSchema(body)
+> OuterObjectWithEnumProperty fakePropertyEnumIntegerSerialize(outerObjectWithEnumProperty)
 
 
 
-For this test, the body for this request much reference a schema named `File`.
+Test serialization of enum (int) properties with examples
 
 ### Example
 
@@ -374,9 +441,140 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
-        FileSchemaTestClass body = new FileSchemaTestClass(); // FileSchemaTestClass | 
+        OuterObjectWithEnumProperty outerObjectWithEnumProperty = new OuterObjectWithEnumProperty(); // OuterObjectWithEnumProperty | Input enum (int) as post body
         try {
-            apiInstance.testBodyWithFileSchema(body);
+            OuterObjectWithEnumProperty result = apiInstance.fakePropertyEnumIntegerSerialize(outerObjectWithEnumProperty);
+            System.out.println(result);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling FakeApi#fakePropertyEnumIntegerSerialize");
+            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 |
+|------------- | ------------- | ------------- | -------------|
+| **outerObjectWithEnumProperty** | [**OuterObjectWithEnumProperty**](OuterObjectWithEnumProperty.md)| Input enum (int) as post body | |
+
+### Return type
+
+[**OuterObjectWithEnumProperty**](OuterObjectWithEnumProperty.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: application/json
+- **Accept**: */*
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output enum (int) |  -  |
+
+
+## testBodyWithBinary
+
+> testBodyWithBinary(body)
+
+
+
+For this test, the body has to be a binary file.
+
+### 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.FakeApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
+
+        FakeApi apiInstance = new FakeApi(defaultClient);
+        File body = new File("/path/to/file"); // File | image to upload
+        try {
+            apiInstance.testBodyWithBinary(body);
+        } catch (ApiException e) {
+            System.err.println("Exception when calling FakeApi#testBodyWithBinary");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Reason: " + e.getResponseBody());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+
+| Name | Type | Description  | Notes |
+|------------- | ------------- | ------------- | -------------|
+| **body** | **File**| image to upload | |
+
+### Return type
+
+null (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: image/png
+- **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
+
+## testBodyWithFileSchema
+
+> testBodyWithFileSchema(fileSchemaTestClass)
+
+
+
+For this test, the body for this request must reference a schema named `File`.
+
+### 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.FakeApi;
+
+public class Example {
+    public static void main(String[] args) {
+        ApiClient defaultClient = Configuration.getDefaultApiClient();
+        defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
+
+        FakeApi apiInstance = new FakeApi(defaultClient);
+        FileSchemaTestClass fileSchemaTestClass = new FileSchemaTestClass(); // FileSchemaTestClass | 
+        try {
+            apiInstance.testBodyWithFileSchema(fileSchemaTestClass);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testBodyWithFileSchema");
             System.err.println("Status code: " + e.getCode());
@@ -393,7 +591,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**FileSchemaTestClass**](FileSchemaTestClass.md)|  | |
+| **fileSchemaTestClass** | [**FileSchemaTestClass**](FileSchemaTestClass.md)|  | |
 
 ### Return type
 
@@ -417,7 +615,7 @@ No authorization required
 
 ## testBodyWithQueryParams
 
-> testBodyWithQueryParams(query, body)
+> testBodyWithQueryParams(query, user)
 
 
 
@@ -438,9 +636,9 @@ public class Example {
 
         FakeApi apiInstance = new FakeApi(defaultClient);
         String query = "query_example"; // String | 
-        User body = new User(); // User | 
+        User user = new User(); // User | 
         try {
-            apiInstance.testBodyWithQueryParams(query, body);
+            apiInstance.testBodyWithQueryParams(query, user);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testBodyWithQueryParams");
             System.err.println("Status code: " + e.getCode());
@@ -458,7 +656,7 @@ public class Example {
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
 | **query** | **String**|  | |
-| **body** | [**User**](User.md)|  | |
+| **user** | [**User**](User.md)|  | |
 
 ### Return type
 
@@ -482,7 +680,7 @@ No authorization required
 
 ## testClientModel
 
-> Client testClientModel(body)
+> Client testClientModel(client)
 
 To test \"client\" model
 
@@ -504,9 +702,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            Client result = apiInstance.testClientModel(body);
+            Client result = apiInstance.testClientModel(client);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testClientModel");
@@ -524,7 +722,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 
@@ -550,9 +748,9 @@ No authorization required
 
 > testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, paramCallback)
 
-Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
-Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
 ### Example
 
@@ -646,7 +844,7 @@ null (empty response body)
 
 ## testEnumParameters
 
-> testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString)
+> testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString)
 
 To test enum parameters
 
@@ -674,10 +872,11 @@ public class Example {
         String enumQueryString = "_abc"; // String | Query parameter enum test (string)
         Integer enumQueryInteger = 1; // Integer | Query parameter enum test (double)
         Double enumQueryDouble = 1.1D; // Double | Query parameter enum test (double)
+        List<EnumClass> enumQueryModelArray = Arrays.asList(-efg); // List<EnumClass> | 
         List<String> enumFormStringArray = Arrays.asList("$"); // List<String> | Form parameter enum test (string array)
         String enumFormString = "_abc"; // String | Form parameter enum test (string)
         try {
-            apiInstance.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+            apiInstance.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testEnumParameters");
             System.err.println("Status code: " + e.getCode());
@@ -700,6 +899,7 @@ public class Example {
 | **enumQueryString** | **String**| Query parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)] |
 | **enumQueryInteger** | **Integer**| Query parameter enum test (double) | [optional] [enum: 1, -2] |
 | **enumQueryDouble** | **Double**| Query parameter enum test (double) | [optional] [enum: 1.1, -1.2] |
+| **enumQueryModelArray** | [**List&lt;EnumClass&gt;**](EnumClass.md)|  | [optional] |
 | **enumFormStringArray** | [**List&lt;String&gt;**](String.md)| Form parameter enum test (string array) | [optional] [enum: >, $] |
 | **enumFormString** | **String**| Form parameter enum test (string) | [optional] [default to -efg] [enum: _abc, -efg, (xyz)] |
 
@@ -739,6 +939,7 @@ Fake endpoint to test group parameters (optional)
 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.FakeApi;
 
@@ -746,6 +947,10 @@ public class Example {
     public static void main(String[] args) {
         ApiClient defaultClient = Configuration.getDefaultApiClient();
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
+        
+        // Configure HTTP bearer authorization: bearer_test
+        HttpBearerAuth bearer_test = (HttpBearerAuth) defaultClient.getAuthentication("bearer_test");
+        bearer_test.setBearerToken("BEARER TOKEN");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
         Integer requiredStringGroup = 56; // Integer | Required String in group parameters
@@ -785,7 +990,7 @@ null (empty response body)
 
 ### Authorization
 
-No authorization required
+[bearer_test](../README.md#bearer_test)
 
 ### HTTP request headers
 
@@ -801,10 +1006,12 @@ No authorization required
 
 ## testInlineAdditionalProperties
 
-> testInlineAdditionalProperties(param)
+> testInlineAdditionalProperties(requestBody)
 
 test inline additionalProperties
 
+
+
 ### Example
 
 ```java
@@ -821,9 +1028,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         FakeApi apiInstance = new FakeApi(defaultClient);
-        Map<String, String> param = new HashMap(); // Map<String, String> | request body
+        Map<String, String> requestBody = new HashMap(); // Map<String, String> | request body
         try {
-            apiInstance.testInlineAdditionalProperties(param);
+            apiInstance.testInlineAdditionalProperties(requestBody);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testInlineAdditionalProperties");
             System.err.println("Status code: " + e.getCode());
@@ -840,7 +1047,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **param** | [**Map&lt;String, String&gt;**](String.md)| request body | |
+| **requestBody** | [**Map&lt;String, String&gt;**](String.md)| request body | |
 
 ### Return type
 
@@ -868,6 +1075,8 @@ No authorization required
 
 test json serialization of form data
 
+
+
 ### Example
 
 ```java
@@ -929,7 +1138,7 @@ No authorization required
 
 ## testQueryParameterCollectionFormat
 
-> testQueryParameterCollectionFormat(pipe, ioutil, http, url, context)
+> testQueryParameterCollectionFormat(pipe, ioutil, http, url, context, allowEmpty, language)
 
 
 
@@ -956,8 +1165,10 @@ public class Example {
         List<String> http = Arrays.asList(); // List<String> | 
         List<String> url = Arrays.asList(); // List<String> | 
         List<String> context = Arrays.asList(); // List<String> | 
+        String allowEmpty = "allowEmpty_example"; // String | 
+        Map<String, String> language = new HashMap(); // Map<String, String> | 
         try {
-            apiInstance.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context);
+            apiInstance.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context, allowEmpty, language);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeApi#testQueryParameterCollectionFormat");
             System.err.println("Status code: " + e.getCode());
@@ -979,6 +1190,8 @@ public class Example {
 | **http** | [**List&lt;String&gt;**](String.md)|  | |
 | **url** | [**List&lt;String&gt;**](String.md)|  | |
 | **context** | [**List&lt;String&gt;**](String.md)|  | |
+| **allowEmpty** | **String**|  | |
+| **language** | [**Map&lt;String, String&gt;**](String.md)|  | [optional] |
 
 ### Return type
 

samples/client/petstore/java/apache-httpclient/docs/FakeClassnameTags123Api.md

@@ -10,7 +10,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## testClassname
 
-> Client testClassname(body)
+> Client testClassname(client)
 
 To test class name in snake case
 
@@ -39,9 +39,9 @@ public class Example {
         //api_key_query.setApiKeyPrefix("Token");
 
         FakeClassnameTags123Api apiInstance = new FakeClassnameTags123Api(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            Client result = apiInstance.testClassname(body);
+            Client result = apiInstance.testClassname(client);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeClassnameTags123Api#testClassname");
@@ -59,7 +59,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 

samples/client/petstore/java/apache-httpclient/docs/Foo.md

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

samples/client/petstore/java/apache-httpclient/docs/FooGetDefaultResponse.md

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

samples/client/petstore/java/apache-httpclient/docs/FormatTest.md

@@ -13,6 +13,7 @@
 |**number** | **BigDecimal** |  |  |
 |**_float** | **Float** |  |  [optional] |
 |**_double** | **Double** |  |  [optional] |
+|**decimal** | **BigDecimal** |  |  [optional] |
 |**string** | **String** |  |  [optional] |
 |**_byte** | **byte[]** |  |  |
 |**binary** | **File** |  |  [optional] |
@@ -20,7 +21,8 @@
 |**dateTime** | **OffsetDateTime** |  |  [optional] |
 |**uuid** | **UUID** |  |  [optional] |
 |**password** | **String** |  |  |
-|**bigDecimal** | **BigDecimal** |  |  [optional] |
+|**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/apache-httpclient/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/apache-httpclient/docs/NullableClass.md

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

samples/client/petstore/java/apache-httpclient/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/apache-httpclient/docs/OuterEnumDefaultValue.md

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

samples/client/petstore/java/apache-httpclient/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/apache-httpclient/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/apache-httpclient/docs/OuterObjectWithEnumProperty.md

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

samples/client/petstore/java/apache-httpclient/docs/PetApi.md

@@ -18,10 +18,12 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## addPet
 
-> addPet(body)
+> addPet(pet)
 
 Add a new pet to the store
 
+
+
 ### Example
 
 ```java
@@ -43,9 +45,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            apiInstance.addPet(body);
+            apiInstance.addPet(pet);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#addPet");
             System.err.println("Status code: " + e.getCode());
@@ -62,7 +64,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -81,7 +83,7 @@ null (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -91,6 +93,8 @@ null (empty response body)
 
 Deletes a pet
 
+
+
 ### Example
 
 ```java
@@ -152,7 +156,7 @@ null (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **400** | Invalid pet value |  -  |
 
 
@@ -377,10 +381,12 @@ public class Example {
 
 ## updatePet
 
-> updatePet(body)
+> updatePet(pet)
 
 Update an existing pet
 
+
+
 ### Example
 
 ```java
@@ -402,9 +408,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            apiInstance.updatePet(body);
+            apiInstance.updatePet(pet);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#updatePet");
             System.err.println("Status code: " + e.getCode());
@@ -421,7 +427,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -440,7 +446,7 @@ null (empty response body)
 ### 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 |  -  |
@@ -452,6 +458,8 @@ null (empty response body)
 
 Updates a pet in the store with form data
 
+
+
 ### Example
 
 ```java
@@ -515,6 +523,7 @@ null (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -524,6 +533,8 @@ null (empty response body)
 
 uploads an image
 
+
+
 ### Example
 
 ```java
@@ -597,6 +608,8 @@ public class Example {
 
 uploads an image (required)
 
+
+
 ### Example
 
 ```java

samples/client/petstore/java/apache-httpclient/docs/SingleRefType.md

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

samples/client/petstore/java/apache-httpclient/docs/StoreApi.md

@@ -216,10 +216,12 @@ No authorization required
 
 ## placeOrder
 
-> Order placeOrder(body)
+> Order placeOrder(order)
 
 Place an order for a pet
 
+
+
 ### Example
 
 ```java
@@ -236,9 +238,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
-        Order body = new Order(); // Order | order placed for purchasing the pet
+        Order order = new Order(); // Order | order placed for purchasing the pet
         try {
-            Order result = apiInstance.placeOrder(body);
+            Order result = apiInstance.placeOrder(order);
             System.out.println(result);
         } catch (ApiException e) {
             System.err.println("Exception when calling StoreApi#placeOrder");
@@ -256,7 +258,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Order**](Order.md)| order placed for purchasing the pet | |
+| **order** | [**Order**](Order.md)| order placed for purchasing the pet | |
 
 ### Return type
 
@@ -268,7 +270,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: application/xml, application/json
 
 

samples/client/petstore/java/apache-httpclient/docs/UserApi.md

@@ -17,7 +17,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## createUser
 
-> createUser(body)
+> createUser(user)
 
 Create user
 
@@ -39,9 +39,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        User body = new User(); // User | Created user object
+        User user = new User(); // User | Created user object
         try {
-            apiInstance.createUser(body);
+            apiInstance.createUser(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUser");
             System.err.println("Status code: " + e.getCode());
@@ -58,7 +58,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**User**](User.md)| Created user object | |
+| **user** | [**User**](User.md)| Created user object | |
 
 ### Return type
 
@@ -70,7 +70,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 
@@ -82,10 +82,12 @@ No authorization required
 
 ## createUsersWithArrayInput
 
-> createUsersWithArrayInput(body)
+> createUsersWithArrayInput(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -102,9 +104,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            apiInstance.createUsersWithArrayInput(body);
+            apiInstance.createUsersWithArrayInput(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUsersWithArrayInput");
             System.err.println("Status code: " + e.getCode());
@@ -121,7 +123,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -133,7 +135,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 
@@ -145,10 +147,12 @@ No authorization required
 
 ## createUsersWithListInput
 
-> createUsersWithListInput(body)
+> createUsersWithListInput(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -165,9 +169,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            apiInstance.createUsersWithListInput(body);
+            apiInstance.createUsersWithListInput(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUsersWithListInput");
             System.err.println("Status code: " + e.getCode());
@@ -184,7 +188,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -196,7 +200,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 
@@ -278,6 +282,8 @@ No authorization required
 
 Get user by user name
 
+
+
 ### Example
 
 ```java
@@ -344,6 +350,8 @@ No authorization required
 
 Logs user into the system
 
+
+
 ### Example
 
 ```java
@@ -411,6 +419,8 @@ No authorization required
 
 Logs out current logged in user session
 
+
+
 ### Example
 
 ```java
@@ -466,7 +476,7 @@ No authorization required
 
 ## updateUser
 
-> updateUser(username, body)
+> updateUser(username, user)
 
 Updated user
 
@@ -489,9 +499,9 @@ public class Example {
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | name that need to be deleted
-        User body = new User(); // User | Updated user object
+        User user = new User(); // User | Updated user object
         try {
-            apiInstance.updateUser(username, body);
+            apiInstance.updateUser(username, user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#updateUser");
             System.err.println("Status code: " + e.getCode());
@@ -509,7 +519,7 @@ public class Example {
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
 | **username** | **String**| name that need to be deleted | |
-| **body** | [**User**](User.md)| Updated user object | |
+| **user** | [**User**](User.md)| Updated user object | |
 
 ### Return type
 
@@ -521,7 +531,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 

samples/client/petstore/java/apache-httpclient/pom.xml

@@ -254,6 +254,11 @@
                 <artifactId>jackson-datatype-jsr310</artifactId>
                 <version>${jackson-version}</version>
             </dependency>
+        <dependency>
+            <groupId>org.openapitools</groupId>
+            <artifactId>jackson-databind-nullable</artifactId>
+            <version>${jackson-databind-nullable-version}</version>
+        </dependency>
         <dependency>
             <groupId>jakarta.annotation</groupId>
             <artifactId>jakarta.annotation-api</artifactId>
@@ -274,6 +279,7 @@
         <httpclient-version>4.5.13</httpclient-version>
         <jackson-version>2.13.4</jackson-version>
         <jackson-databind-version>2.13.4.2</jackson-databind-version>
+        <jackson-databind-nullable-version>0.2.4</jackson-databind-nullable-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <junit-version>4.13.2</junit-version>

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/ApiClient.java

@@ -76,6 +76,7 @@ import java.text.DateFormat;
 
 import org.openapitools.client.auth.Authentication;
 import org.openapitools.client.auth.HttpBasicAuth;
+import org.openapitools.client.auth.HttpBearerAuth;
 import org.openapitools.client.auth.ApiKeyAuth;
 import org.openapitools.client.auth.OAuth;
 
@@ -86,8 +87,51 @@ public class ApiClient extends JavaTimeFormatter {
   private String basePath = "http://petstore.swagger.io:80/v2";
   protected List<ServerConfiguration> servers = new ArrayList<ServerConfiguration>(Arrays.asList(
     new ServerConfiguration(
-      "http://petstore.swagger.io:80/v2",
+      "http://{server}.swagger.io:{port}/v2",
-      "No description provided",
+      "petstore server",
+      new HashMap<String, ServerVariable>() {{
+        put("server", new ServerVariable(
+          "No description provided",
+          "petstore",
+          new HashSet<String>(
+            Arrays.asList(
+              "petstore",
+              "qa-petstore",
+              "dev-petstore"
+            )
+          )
+        ));
+        put("port", new ServerVariable(
+          "No description provided",
+          "80",
+          new HashSet<String>(
+            Arrays.asList(
+              "80",
+              "8080"
+            )
+          )
+        ));
+      }}
+    ),
+    new ServerConfiguration(
+      "https://localhost:8080/{version}",
+      "The local server",
+      new HashMap<String, ServerVariable>() {{
+        put("version", new ServerVariable(
+          "No description provided",
+          "v2",
+          new HashSet<String>(
+            Arrays.asList(
+              "v1",
+              "v2"
+            )
+          )
+        ));
+      }}
+    ),
+    new ServerConfiguration(
+      "https://127.0.0.1/no_varaible",
+      "The local server without variables",
       new HashMap<String, ServerVariable>()
     )
   ));
@@ -130,7 +174,9 @@ public class ApiClient extends JavaTimeFormatter {
     authentications = new HashMap<String, Authentication>();
     authentications.put("api_key", new ApiKeyAuth("header", "api_key"));
     authentications.put("api_key_query", new ApiKeyAuth("query", "api_key_query"));
+    authentications.put("bearer_test", new HttpBearerAuth("bearer"));
     authentications.put("http_basic_test", new HttpBasicAuth());
+    authentications.put("http_signature_test", new HttpBearerAuth("signature"));
     authentications.put("petstore_auth", new OAuth());
     // Prevent the authentications from being modified.
     authentications = Collections.unmodifiableMap(authentications);
@@ -272,6 +318,21 @@ public class ApiClient extends JavaTimeFormatter {
     return tempFolderPath;
   }
 
+  /**
+   * Helper method to set access token for the first Bearer authentication.
+   * @param bearerToken Bearer token
+   * @return API client
+   */
+  public ApiClient setBearerToken(String bearerToken) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof HttpBearerAuth) {
+        ((HttpBearerAuth) auth).setBearerToken(bearerToken);
+        return this;
+      }
+    }
+    throw new RuntimeException("No Bearer authentication configured!");
+  }
+
 
   /**
    * Helper method to set username for the first HTTP basic authentication.

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/AnotherFakeApi.java

@@ -51,16 +51,16 @@ public class AnotherFakeApi {
   /**
    * To test special tags
    * To test special tags and operation ID starting with number
-   * @param body client model (required)
+   * @param client client model (required)
    * @return Client
    * @throws ApiException if fails to make API call
    */
-  public Client call123testSpecialTags(Client body) throws ApiException {
+  public Client call123testSpecialTags(Client client) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = client;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling call123testSpecialTags");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling call123testSpecialTags");
     }
     
     // create path and map variables

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/DefaultApi.java

@@ -0,0 +1,101 @@
+/*
+ * 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 com.fasterxml.jackson.core.type.TypeReference;
+
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.model.*;
+import org.openapitools.client.Pair;
+
+import org.openapitools.client.model.FooGetDefaultResponse;
+
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DefaultApi {
+  private ApiClient apiClient;
+
+  public DefaultApi() {
+    this(Configuration.getDefaultApiClient());
+  }
+
+  public DefaultApi(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  public ApiClient getApiClient() {
+    return apiClient;
+  }
+
+  public void setApiClient(ApiClient apiClient) {
+    this.apiClient = apiClient;
+  }
+
+  /**
+   * 
+   * 
+   * @return FooGetDefaultResponse
+   * @throws ApiException if fails to make API call
+   */
+  public FooGetDefaultResponse fooGet() throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/foo";
+
+    // query params
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      "application/json"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<FooGetDefaultResponse> localVarReturnType = new TypeReference<FooGetDefaultResponse>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "GET",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+}

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/FakeApi.java

@@ -22,13 +22,16 @@ import org.openapitools.client.Pair;
 
 import java.math.BigDecimal;
 import org.openapitools.client.model.Client;
+import org.openapitools.client.model.EnumClass;
 import java.io.File;
 import org.openapitools.client.model.FileSchemaTestClass;
+import org.openapitools.client.model.HealthCheckResult;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.OuterComposite;
+import org.openapitools.client.model.OuterObjectWithEnumProperty;
+import org.openapitools.client.model.Pet;
 import org.openapitools.client.model.User;
-import org.openapitools.client.model.XmlItem;
 
 
 import java.util.ArrayList;
@@ -57,21 +60,16 @@ public class FakeApi {
   }
 
   /**
-   * creates an XmlItem
+   * Health check endpoint
-   * this route creates an XmlItem
+   * 
-   * @param xmlItem XmlItem Body (required)
+   * @return HealthCheckResult
    * @throws ApiException if fails to make API call
    */
-  public void createXmlItem(XmlItem xmlItem) throws ApiException {
+  public HealthCheckResult fakeHealthGet() throws ApiException {
-    Object localVarPostBody = xmlItem;
+    Object localVarPostBody = null;
-    
-    // verify the required parameter 'xmlItem' is set
-    if (xmlItem == null) {
-      throw new ApiException(400, "Missing the required parameter 'xmlItem' when calling createXmlItem");
-    }
     
     // create path and map variables
-    String localVarPath = "/fake/create_xml_item";
+    String localVarPath = "/fake/health";
 
     // query params
     List<Pair> localVarQueryParams = new ArrayList<Pair>();
@@ -84,20 +82,80 @@ public class FakeApi {
     
     
     final String[] localVarAccepts = {
-      
+      "application/json"
     };
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      "application/xml", "application/xml; charset=utf-8", "application/xml; charset=utf-16", "text/xml", "text/xml; charset=utf-8", "text/xml; charset=utf-16"
+      
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
     String[] localVarAuthNames = new String[] {  };
 
+    TypeReference<HealthCheckResult> localVarReturnType = new TypeReference<HealthCheckResult>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "GET",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+  /**
+   * test http signature authentication
+   * 
+   * @param pet Pet object that needs to be added to the store (required)
+   * @param query1 query parameter (optional)
+   * @param header1 header parameter (optional)
+   * @throws ApiException if fails to make API call
+   */
+  public void fakeHttpSignatureTest(Pet pet, String query1, String header1) throws ApiException {
+    Object localVarPostBody = pet;
+    
+    // verify the required parameter 'pet' is set
+    if (pet == null) {
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling fakeHttpSignatureTest");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/fake/http-signature-test";
+
+    // query params
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    localVarQueryParams.addAll(apiClient.parameterToPair("query_1", query1));
+    if (header1 != null)
+      localVarHeaderParams.put("header_1", apiClient.parameterToString(header1));
+
+    
+    
+    final String[] localVarAccepts = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json", "application/xml"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "http_signature_test" };
+
     apiClient.invokeAPI(
         localVarPath,
-        "POST",
+        "GET",
         localVarQueryParams,
         localVarCollectionQueryParams,
         localVarPostBody,
@@ -139,7 +197,7 @@ public class FakeApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -164,12 +222,12 @@ public class FakeApi {
   /**
    * 
    * Test serialization of object with outer number type
-   * @param body Input composite as post body (optional)
+   * @param outerComposite Input composite as post body (optional)
    * @return OuterComposite
    * @throws ApiException if fails to make API call
    */
-  public OuterComposite fakeOuterCompositeSerialize(OuterComposite body) throws ApiException {
+  public OuterComposite fakeOuterCompositeSerialize(OuterComposite outerComposite) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = outerComposite;
     
     // create path and map variables
     String localVarPath = "/fake/outer/composite";
@@ -190,7 +248,7 @@ public class FakeApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -241,7 +299,7 @@ public class FakeApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -292,7 +350,7 @@ public class FakeApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -316,16 +374,126 @@ public class FakeApi {
   }
   /**
    * 
-   * For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+   * Test serialization of enum (int) properties with examples
-   * @param body  (required)
+   * @param outerObjectWithEnumProperty Input enum (int) as post body (required)
+   * @return OuterObjectWithEnumProperty
    * @throws ApiException if fails to make API call
    */
-  public void testBodyWithFileSchema(FileSchemaTestClass body) throws ApiException {
+  public OuterObjectWithEnumProperty fakePropertyEnumIntegerSerialize(OuterObjectWithEnumProperty outerObjectWithEnumProperty) throws ApiException {
+    Object localVarPostBody = outerObjectWithEnumProperty;
+    
+    // verify the required parameter 'outerObjectWithEnumProperty' is set
+    if (outerObjectWithEnumProperty == null) {
+      throw new ApiException(400, "Missing the required parameter 'outerObjectWithEnumProperty' when calling fakePropertyEnumIntegerSerialize");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/fake/property/enum-int";
+
+    // query params
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      "*/*"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "application/json"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    TypeReference<OuterObjectWithEnumProperty> localVarReturnType = new TypeReference<OuterObjectWithEnumProperty>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+  /**
+   * 
+   * For this test, the body has to be a binary file.
+   * @param body image to upload (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void testBodyWithBinary(File body) throws ApiException {
     Object localVarPostBody = body;
     
     // verify the required parameter 'body' is set
     if (body == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithFileSchema");
+      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithBinary");
+    }
+    
+    // create path and map variables
+    String localVarPath = "/fake/body-with-binary";
+
+    // query params
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    
+    
+    final String[] localVarAccepts = {
+      
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      "image/png"
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] {  };
+
+    apiClient.invokeAPI(
+        localVarPath,
+        "PUT",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        null
+    );
+  }
+  /**
+   * 
+   * For this test, the body for this request must reference a schema named &#x60;File&#x60;.
+   * @param fileSchemaTestClass  (required)
+   * @throws ApiException if fails to make API call
+   */
+  public void testBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass) throws ApiException {
+    Object localVarPostBody = fileSchemaTestClass;
+    
+    // verify the required parameter 'fileSchemaTestClass' is set
+    if (fileSchemaTestClass == null) {
+      throw new ApiException(400, "Missing the required parameter 'fileSchemaTestClass' when calling testBodyWithFileSchema");
     }
     
     // create path and map variables
@@ -372,20 +540,20 @@ public class FakeApi {
    * 
    * 
    * @param query  (required)
-   * @param body  (required)
+   * @param user  (required)
    * @throws ApiException if fails to make API call
    */
-  public void testBodyWithQueryParams(String query, User body) throws ApiException {
+  public void testBodyWithQueryParams(String query, User user) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = user;
     
     // verify the required parameter 'query' is set
     if (query == null) {
       throw new ApiException(400, "Missing the required parameter 'query' when calling testBodyWithQueryParams");
     }
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithQueryParams");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling testBodyWithQueryParams");
     }
     
     // create path and map variables
@@ -432,16 +600,16 @@ public class FakeApi {
   /**
    * To test \&quot;client\&quot; model
    * To test \&quot;client\&quot; model
-   * @param body client model (required)
+   * @param client client model (required)
    * @return Client
    * @throws ApiException if fails to make API call
    */
-  public Client testClientModel(Client body) throws ApiException {
+  public Client testClientModel(Client client) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = client;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testClientModel");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling testClientModel");
     }
     
     // create path and map variables
@@ -486,8 +654,8 @@ public class FakeApi {
     );
   }
   /**
-   * Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+   * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
-   * 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 
    * @param number None (required)
    * @param _double None (required)
    * @param patternWithoutDelimiter None (required)
@@ -604,11 +772,12 @@ if (paramCallback != null)
    * @param enumQueryString Query parameter enum test (string) (optional, default to -efg)
    * @param enumQueryInteger Query parameter enum test (double) (optional)
    * @param enumQueryDouble Query parameter enum test (double) (optional)
+   * @param enumQueryModelArray  (optional
    * @param enumFormStringArray Form parameter enum test (string array) (optional
    * @param enumFormString Form parameter enum test (string) (optional, default to -efg)
    * @throws ApiException if fails to make API call
    */
-  public void testEnumParameters(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString) throws ApiException {
+  public void testEnumParameters(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<EnumClass> enumQueryModelArray, List<String> enumFormStringArray, String enumFormString) throws ApiException {
     Object localVarPostBody = null;
     
     // create path and map variables
@@ -621,10 +790,11 @@ if (paramCallback != null)
     Map<String, String> localVarCookieParams = new HashMap<String, String>();
     Map<String, Object> localVarFormParams = new HashMap<String, Object>();
 
-    localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("csv", "enum_query_string_array", enumQueryStringArray));
+    localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("multi", "enum_query_string_array", enumQueryStringArray));
     localVarQueryParams.addAll(apiClient.parameterToPair("enum_query_string", enumQueryString));
     localVarQueryParams.addAll(apiClient.parameterToPair("enum_query_integer", enumQueryInteger));
     localVarQueryParams.addAll(apiClient.parameterToPair("enum_query_double", enumQueryDouble));
+    localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("multi", "enum_query_model_array", enumQueryModelArray));
     if (enumHeaderStringArray != null)
       localVarHeaderParams.put("enum_header_string_array", apiClient.parameterToString(enumHeaderStringArray));
 if (enumHeaderString != null)
@@ -723,7 +893,7 @@ if (booleanGroup != null)
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
-    String[] localVarAuthNames = new String[] {  };
+    String[] localVarAuthNames = new String[] { "bearer_test" };
 
     apiClient.invokeAPI(
         localVarPath,
@@ -743,15 +913,15 @@ if (booleanGroup != null)
   /**
    * test inline additionalProperties
    * 
-   * @param param request body (required)
+   * @param requestBody request body (required)
    * @throws ApiException if fails to make API call
    */
-  public void testInlineAdditionalProperties(Map<String, String> param) throws ApiException {
+  public void testInlineAdditionalProperties(Map<String, String> requestBody) throws ApiException {
-    Object localVarPostBody = param;
+    Object localVarPostBody = requestBody;
     
-    // verify the required parameter 'param' is set
+    // verify the required parameter 'requestBody' is set
-    if (param == null) {
+    if (requestBody == null) {
-      throw new ApiException(400, "Missing the required parameter 'param' when calling testInlineAdditionalProperties");
+      throw new ApiException(400, "Missing the required parameter 'requestBody' when calling testInlineAdditionalProperties");
     }
     
     // create path and map variables
@@ -866,9 +1036,11 @@ if (param2 != null)
    * @param http  (required)
    * @param url  (required)
    * @param context  (required)
+   * @param allowEmpty  (required)
+   * @param language  (optional
    * @throws ApiException if fails to make API call
    */
-  public void testQueryParameterCollectionFormat(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context) throws ApiException {
+  public void testQueryParameterCollectionFormat(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context, String allowEmpty, Map<String, String> language) throws ApiException {
     Object localVarPostBody = null;
     
     // verify the required parameter 'pipe' is set
@@ -896,6 +1068,11 @@ if (param2 != null)
       throw new ApiException(400, "Missing the required parameter 'context' when calling testQueryParameterCollectionFormat");
     }
     
+    // verify the required parameter 'allowEmpty' is set
+    if (allowEmpty == null) {
+      throw new ApiException(400, "Missing the required parameter 'allowEmpty' when calling testQueryParameterCollectionFormat");
+    }
+    
     // create path and map variables
     String localVarPath = "/fake/test-query-parameters";
 
@@ -906,11 +1083,13 @@ if (param2 != null)
     Map<String, String> localVarCookieParams = new HashMap<String, String>();
     Map<String, Object> localVarFormParams = new HashMap<String, Object>();
 
-    localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("csv", "pipe", pipe));
+    localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("pipes", "pipe", pipe));
     localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("csv", "ioutil", ioutil));
     localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("ssv", "http", http));
     localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("csv", "url", url));
     localVarCollectionQueryParams.addAll(apiClient.parameterToPairs("multi", "context", context));
+    localVarQueryParams.addAll(apiClient.parameterToPair("language", language));
+    localVarQueryParams.addAll(apiClient.parameterToPair("allowEmpty", allowEmpty));
     
     
     

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java

@@ -51,16 +51,16 @@ public class FakeClassnameTags123Api {
   /**
    * To test class name in snake case
    * To test class name in snake case
-   * @param body client model (required)
+   * @param client client model (required)
    * @return Client
    * @throws ApiException if fails to make API call
    */
-  public Client testClassname(Client body) throws ApiException {
+  public Client testClassname(Client client) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = client;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testClassname");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling testClassname");
     }
     
     // create path and map variables

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/PetApi.java

@@ -54,15 +54,15 @@ public class PetApi {
   /**
    * Add a new pet to the store
    * 
-   * @param body Pet object that needs to be added to the store (required)
+   * @param pet Pet object that needs to be added to the store (required)
    * @throws ApiException if fails to make API call
    */
-  public void addPet(Pet body) throws ApiException {
+  public void addPet(Pet pet) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = pet;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'pet' is set
-    if (body == null) {
+    if (pet == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling addPet");
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling addPet");
     }
     
     // create path and map variables
@@ -339,15 +339,15 @@ public class PetApi {
   /**
    * Update an existing pet
    * 
-   * @param body Pet object that needs to be added to the store (required)
+   * @param pet Pet object that needs to be added to the store (required)
    * @throws ApiException if fails to make API call
    */
-  public void updatePet(Pet body) throws ApiException {
+  public void updatePet(Pet pet) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = pet;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'pet' is set
-    if (body == null) {
+    if (pet == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling updatePet");
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling updatePet");
     }
     
     // create path and map variables

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/StoreApi.java

@@ -213,16 +213,16 @@ public class StoreApi {
   /**
    * Place an order for a pet
    * 
-   * @param body order placed for purchasing the pet (required)
+   * @param order order placed for purchasing the pet (required)
    * @return Order
    * @throws ApiException if fails to make API call
    */
-  public Order placeOrder(Order body) throws ApiException {
+  public Order placeOrder(Order order) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = order;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'order' is set
-    if (body == null) {
+    if (order == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling placeOrder");
+      throw new ApiException(400, "Missing the required parameter 'order' when calling placeOrder");
     }
     
     // create path and map variables
@@ -244,7 +244,7 @@ public class StoreApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/api/UserApi.java

@@ -52,15 +52,15 @@ public class UserApi {
   /**
    * Create user
    * This can only be done by the logged in user.
-   * @param body Created user object (required)
+   * @param user Created user object (required)
    * @throws ApiException if fails to make API call
    */
-  public void createUser(User body) throws ApiException {
+  public void createUser(User user) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = user;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling createUser");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUser");
     }
     
     // create path and map variables
@@ -82,7 +82,7 @@ public class UserApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -106,15 +106,15 @@ public class UserApi {
   /**
    * Creates list of users with given input array
    * 
-   * @param body List of user object (required)
+   * @param user List of user object (required)
    * @throws ApiException if fails to make API call
    */
-  public void createUsersWithArrayInput(List<User> body) throws ApiException {
+  public void createUsersWithArrayInput(List<User> user) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = user;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling createUsersWithArrayInput");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUsersWithArrayInput");
     }
     
     // create path and map variables
@@ -136,7 +136,7 @@ public class UserApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -160,15 +160,15 @@ public class UserApi {
   /**
    * Creates list of users with given input array
    * 
-   * @param body List of user object (required)
+   * @param user List of user object (required)
    * @throws ApiException if fails to make API call
    */
-  public void createUsersWithListInput(List<User> body) throws ApiException {
+  public void createUsersWithListInput(List<User> user) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = user;
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling createUsersWithListInput");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling createUsersWithListInput");
     }
     
     // create path and map variables
@@ -190,7 +190,7 @@ public class UserApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 
@@ -439,20 +439,20 @@ public class UserApi {
    * Updated user
    * This can only be done by the logged in user.
    * @param username name that need to be deleted (required)
-   * @param body Updated user object (required)
+   * @param user Updated user object (required)
    * @throws ApiException if fails to make API call
    */
-  public void updateUser(String username, User body) throws ApiException {
+  public void updateUser(String username, User user) throws ApiException {
-    Object localVarPostBody = body;
+    Object localVarPostBody = user;
     
     // verify the required parameter 'username' is set
     if (username == null) {
       throw new ApiException(400, "Missing the required parameter 'username' when calling updateUser");
     }
     
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling updateUser");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling updateUser");
     }
     
     // create path and map variables
@@ -475,7 +475,7 @@ public class UserApi {
     final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
 
     final String[] localVarContentTypes = {
-      
+      "application/json"
     };
     final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
 

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java

@@ -20,9 +20,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import java.math.BigDecimal;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.annotation.JsonTypeName;
@@ -31,403 +29,85 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
  * AdditionalPropertiesClass
  */
 @JsonPropertyOrder({
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_STRING,
+  AdditionalPropertiesClass.JSON_PROPERTY_MAP_PROPERTY,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_NUMBER,
+  AdditionalPropertiesClass.JSON_PROPERTY_MAP_OF_MAP_PROPERTY
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_INTEGER,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_BOOLEAN,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_ARRAY_INTEGER,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_ARRAY_ANYTYPE,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_MAP_STRING,
-  AdditionalPropertiesClass.JSON_PROPERTY_MAP_MAP_ANYTYPE,
-  AdditionalPropertiesClass.JSON_PROPERTY_ANYTYPE1,
-  AdditionalPropertiesClass.JSON_PROPERTY_ANYTYPE2,
-  AdditionalPropertiesClass.JSON_PROPERTY_ANYTYPE3
 })
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class AdditionalPropertiesClass {
-  public static final String JSON_PROPERTY_MAP_STRING = "map_string";
+  public static final String JSON_PROPERTY_MAP_PROPERTY = "map_property";
-  private Map<String, String> mapString = null;
+  private Map<String, String> mapProperty = null;
 
-  public static final String JSON_PROPERTY_MAP_NUMBER = "map_number";
+  public static final String JSON_PROPERTY_MAP_OF_MAP_PROPERTY = "map_of_map_property";
-  private Map<String, BigDecimal> mapNumber = null;
+  private Map<String, Map<String, String>> mapOfMapProperty = null;
-
-  public static final String JSON_PROPERTY_MAP_INTEGER = "map_integer";
-  private Map<String, Integer> mapInteger = null;
-
-  public static final String JSON_PROPERTY_MAP_BOOLEAN = "map_boolean";
-  private Map<String, Boolean> mapBoolean = null;
-
-  public static final String JSON_PROPERTY_MAP_ARRAY_INTEGER = "map_array_integer";
-  private Map<String, List<Integer>> mapArrayInteger = null;
-
-  public static final String JSON_PROPERTY_MAP_ARRAY_ANYTYPE = "map_array_anytype";
-  private Map<String, List<Object>> mapArrayAnytype = null;
-
-  public static final String JSON_PROPERTY_MAP_MAP_STRING = "map_map_string";
-  private Map<String, Map<String, String>> mapMapString = null;
-
-  public static final String JSON_PROPERTY_MAP_MAP_ANYTYPE = "map_map_anytype";
-  private Map<String, Map<String, Object>> mapMapAnytype = null;
-
-  public static final String JSON_PROPERTY_ANYTYPE1 = "anytype_1";
-  private Object anytype1;
-
-  public static final String JSON_PROPERTY_ANYTYPE2 = "anytype_2";
-  private Object anytype2;
-
-  public static final String JSON_PROPERTY_ANYTYPE3 = "anytype_3";
-  private Object anytype3;
 
   public AdditionalPropertiesClass() {
   }
 
-  public AdditionalPropertiesClass mapString(Map<String, String> mapString) {
+  public AdditionalPropertiesClass mapProperty(Map<String, String> mapProperty) {
     
-    this.mapString = mapString;
+    this.mapProperty = mapProperty;
     return this;
   }
 
-  public AdditionalPropertiesClass putMapStringItem(String key, String mapStringItem) {
+  public AdditionalPropertiesClass putMapPropertyItem(String key, String mapPropertyItem) {
-    if (this.mapString == null) {
+    if (this.mapProperty == null) {
-      this.mapString = new HashMap<>();
+      this.mapProperty = new HashMap<>();
     }
-    this.mapString.put(key, mapStringItem);
+    this.mapProperty.put(key, mapPropertyItem);
     return this;
   }
 
    /**
-   * Get mapString
+   * Get mapProperty
-   * @return mapString
+   * @return mapProperty
   **/
   @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_STRING)
+  @JsonProperty(JSON_PROPERTY_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
 
-  public Map<String, String> getMapString() {
+  public Map<String, String> getMapProperty() {
-    return mapString;
+    return mapProperty;
   }
 
 
-  @JsonProperty(JSON_PROPERTY_MAP_STRING)
+  @JsonProperty(JSON_PROPERTY_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapString(Map<String, String> mapString) {
+  public void setMapProperty(Map<String, String> mapProperty) {
-    this.mapString = mapString;
+    this.mapProperty = mapProperty;
   }
 
 
-  public AdditionalPropertiesClass mapNumber(Map<String, BigDecimal> mapNumber) {
+  public AdditionalPropertiesClass mapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
     
-    this.mapNumber = mapNumber;
+    this.mapOfMapProperty = mapOfMapProperty;
     return this;
   }
 
-  public AdditionalPropertiesClass putMapNumberItem(String key, BigDecimal mapNumberItem) {
+  public AdditionalPropertiesClass putMapOfMapPropertyItem(String key, Map<String, String> mapOfMapPropertyItem) {
-    if (this.mapNumber == null) {
+    if (this.mapOfMapProperty == null) {
-      this.mapNumber = new HashMap<>();
+      this.mapOfMapProperty = new HashMap<>();
     }
-    this.mapNumber.put(key, mapNumberItem);
+    this.mapOfMapProperty.put(key, mapOfMapPropertyItem);
     return this;
   }
 
    /**
-   * Get mapNumber
+   * Get mapOfMapProperty
-   * @return mapNumber
+   * @return mapOfMapProperty
   **/
   @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_NUMBER)
+  @JsonProperty(JSON_PROPERTY_MAP_OF_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
 
-  public Map<String, BigDecimal> getMapNumber() {
+  public Map<String, Map<String, String>> getMapOfMapProperty() {
-    return mapNumber;
+    return mapOfMapProperty;
   }
 
 
-  @JsonProperty(JSON_PROPERTY_MAP_NUMBER)
+  @JsonProperty(JSON_PROPERTY_MAP_OF_MAP_PROPERTY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapNumber(Map<String, BigDecimal> mapNumber) {
+  public void setMapOfMapProperty(Map<String, Map<String, String>> mapOfMapProperty) {
-    this.mapNumber = mapNumber;
+    this.mapOfMapProperty = mapOfMapProperty;
-  }
-
-
-  public AdditionalPropertiesClass mapInteger(Map<String, Integer> mapInteger) {
-    
-    this.mapInteger = mapInteger;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapIntegerItem(String key, Integer mapIntegerItem) {
-    if (this.mapInteger == null) {
-      this.mapInteger = new HashMap<>();
-    }
-    this.mapInteger.put(key, mapIntegerItem);
-    return this;
-  }
-
-   /**
-   * Get mapInteger
-   * @return mapInteger
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_INTEGER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, Integer> getMapInteger() {
-    return mapInteger;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_INTEGER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapInteger(Map<String, Integer> mapInteger) {
-    this.mapInteger = mapInteger;
-  }
-
-
-  public AdditionalPropertiesClass mapBoolean(Map<String, Boolean> mapBoolean) {
-    
-    this.mapBoolean = mapBoolean;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapBooleanItem(String key, Boolean mapBooleanItem) {
-    if (this.mapBoolean == null) {
-      this.mapBoolean = new HashMap<>();
-    }
-    this.mapBoolean.put(key, mapBooleanItem);
-    return this;
-  }
-
-   /**
-   * Get mapBoolean
-   * @return mapBoolean
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_BOOLEAN)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, Boolean> getMapBoolean() {
-    return mapBoolean;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_BOOLEAN)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapBoolean(Map<String, Boolean> mapBoolean) {
-    this.mapBoolean = mapBoolean;
-  }
-
-
-  public AdditionalPropertiesClass mapArrayInteger(Map<String, List<Integer>> mapArrayInteger) {
-    
-    this.mapArrayInteger = mapArrayInteger;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapArrayIntegerItem(String key, List<Integer> mapArrayIntegerItem) {
-    if (this.mapArrayInteger == null) {
-      this.mapArrayInteger = new HashMap<>();
-    }
-    this.mapArrayInteger.put(key, mapArrayIntegerItem);
-    return this;
-  }
-
-   /**
-   * Get mapArrayInteger
-   * @return mapArrayInteger
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_ARRAY_INTEGER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, List<Integer>> getMapArrayInteger() {
-    return mapArrayInteger;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_ARRAY_INTEGER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapArrayInteger(Map<String, List<Integer>> mapArrayInteger) {
-    this.mapArrayInteger = mapArrayInteger;
-  }
-
-
-  public AdditionalPropertiesClass mapArrayAnytype(Map<String, List<Object>> mapArrayAnytype) {
-    
-    this.mapArrayAnytype = mapArrayAnytype;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapArrayAnytypeItem(String key, List<Object> mapArrayAnytypeItem) {
-    if (this.mapArrayAnytype == null) {
-      this.mapArrayAnytype = new HashMap<>();
-    }
-    this.mapArrayAnytype.put(key, mapArrayAnytypeItem);
-    return this;
-  }
-
-   /**
-   * Get mapArrayAnytype
-   * @return mapArrayAnytype
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_ARRAY_ANYTYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, List<Object>> getMapArrayAnytype() {
-    return mapArrayAnytype;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_ARRAY_ANYTYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapArrayAnytype(Map<String, List<Object>> mapArrayAnytype) {
-    this.mapArrayAnytype = mapArrayAnytype;
-  }
-
-
-  public AdditionalPropertiesClass mapMapString(Map<String, Map<String, String>> mapMapString) {
-    
-    this.mapMapString = mapMapString;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapMapStringItem(String key, Map<String, String> mapMapStringItem) {
-    if (this.mapMapString == null) {
-      this.mapMapString = new HashMap<>();
-    }
-    this.mapMapString.put(key, mapMapStringItem);
-    return this;
-  }
-
-   /**
-   * Get mapMapString
-   * @return mapMapString
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_MAP_STRING)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, Map<String, String>> getMapMapString() {
-    return mapMapString;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_MAP_STRING)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapMapString(Map<String, Map<String, String>> mapMapString) {
-    this.mapMapString = mapMapString;
-  }
-
-
-  public AdditionalPropertiesClass mapMapAnytype(Map<String, Map<String, Object>> mapMapAnytype) {
-    
-    this.mapMapAnytype = mapMapAnytype;
-    return this;
-  }
-
-  public AdditionalPropertiesClass putMapMapAnytypeItem(String key, Map<String, Object> mapMapAnytypeItem) {
-    if (this.mapMapAnytype == null) {
-      this.mapMapAnytype = new HashMap<>();
-    }
-    this.mapMapAnytype.put(key, mapMapAnytypeItem);
-    return this;
-  }
-
-   /**
-   * Get mapMapAnytype
-   * @return mapMapAnytype
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_MAP_MAP_ANYTYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Map<String, Map<String, Object>> getMapMapAnytype() {
-    return mapMapAnytype;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_MAP_MAP_ANYTYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMapMapAnytype(Map<String, Map<String, Object>> mapMapAnytype) {
-    this.mapMapAnytype = mapMapAnytype;
-  }
-
-
-  public AdditionalPropertiesClass anytype1(Object anytype1) {
-    
-    this.anytype1 = anytype1;
-    return this;
-  }
-
-   /**
-   * Get anytype1
-   * @return anytype1
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_ANYTYPE1)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Object getAnytype1() {
-    return anytype1;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_ANYTYPE1)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setAnytype1(Object anytype1) {
-    this.anytype1 = anytype1;
-  }
-
-
-  public AdditionalPropertiesClass anytype2(Object anytype2) {
-    
-    this.anytype2 = anytype2;
-    return this;
-  }
-
-   /**
-   * Get anytype2
-   * @return anytype2
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_ANYTYPE2)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Object getAnytype2() {
-    return anytype2;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_ANYTYPE2)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setAnytype2(Object anytype2) {
-    this.anytype2 = anytype2;
-  }
-
-
-  public AdditionalPropertiesClass anytype3(Object anytype3) {
-    
-    this.anytype3 = anytype3;
-    return this;
-  }
-
-   /**
-   * Get anytype3
-   * @return anytype3
-  **/
-  @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_ANYTYPE3)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-
-  public Object getAnytype3() {
-    return anytype3;
-  }
-
-
-  @JsonProperty(JSON_PROPERTY_ANYTYPE3)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setAnytype3(Object anytype3) {
-    this.anytype3 = anytype3;
   }
 
 
@@ -440,39 +120,21 @@ public class AdditionalPropertiesClass {
       return false;
     }
     AdditionalPropertiesClass additionalPropertiesClass = (AdditionalPropertiesClass) o;
-    return Objects.equals(this.mapString, additionalPropertiesClass.mapString) &&
+    return Objects.equals(this.mapProperty, additionalPropertiesClass.mapProperty) &&
-        Objects.equals(this.mapNumber, additionalPropertiesClass.mapNumber) &&
+        Objects.equals(this.mapOfMapProperty, additionalPropertiesClass.mapOfMapProperty);
-        Objects.equals(this.mapInteger, additionalPropertiesClass.mapInteger) &&
-        Objects.equals(this.mapBoolean, additionalPropertiesClass.mapBoolean) &&
-        Objects.equals(this.mapArrayInteger, additionalPropertiesClass.mapArrayInteger) &&
-        Objects.equals(this.mapArrayAnytype, additionalPropertiesClass.mapArrayAnytype) &&
-        Objects.equals(this.mapMapString, additionalPropertiesClass.mapMapString) &&
-        Objects.equals(this.mapMapAnytype, additionalPropertiesClass.mapMapAnytype) &&
-        Objects.equals(this.anytype1, additionalPropertiesClass.anytype1) &&
-        Objects.equals(this.anytype2, additionalPropertiesClass.anytype2) &&
-        Objects.equals(this.anytype3, additionalPropertiesClass.anytype3);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(mapString, mapNumber, mapInteger, mapBoolean, mapArrayInteger, mapArrayAnytype, mapMapString, mapMapAnytype, anytype1, anytype2, anytype3);
+    return Objects.hash(mapProperty, mapOfMapProperty);
   }
 
   @Override
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class AdditionalPropertiesClass {\n");
-    sb.append("    mapString: ").append(toIndentedString(mapString)).append("\n");
+    sb.append("    mapProperty: ").append(toIndentedString(mapProperty)).append("\n");
-    sb.append("    mapNumber: ").append(toIndentedString(mapNumber)).append("\n");
+    sb.append("    mapOfMapProperty: ").append(toIndentedString(mapOfMapProperty)).append("\n");
-    sb.append("    mapInteger: ").append(toIndentedString(mapInteger)).append("\n");
-    sb.append("    mapBoolean: ").append(toIndentedString(mapBoolean)).append("\n");
-    sb.append("    mapArrayInteger: ").append(toIndentedString(mapArrayInteger)).append("\n");
-    sb.append("    mapArrayAnytype: ").append(toIndentedString(mapArrayAnytype)).append("\n");
-    sb.append("    mapMapString: ").append(toIndentedString(mapMapString)).append("\n");
-    sb.append("    mapMapAnytype: ").append(toIndentedString(mapMapAnytype)).append("\n");
-    sb.append("    anytype1: ").append(toIndentedString(anytype1)).append("\n");
-    sb.append("    anytype2: ").append(toIndentedString(anytype2)).append("\n");
-    sb.append("    anytype3: ").append(toIndentedString(anytype3)).append("\n");
     sb.append("}");
     return sb.toString();
   }

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/AllOfWithSingleRef.java

@@ -0,0 +1,137 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.openapitools.client.model.SingleRefType;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * AllOfWithSingleRef
+ */
+@JsonPropertyOrder({
+  AllOfWithSingleRef.JSON_PROPERTY_USERNAME,
+  AllOfWithSingleRef.JSON_PROPERTY_SINGLE_REF_TYPE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class AllOfWithSingleRef {
+  public static final String JSON_PROPERTY_USERNAME = "username";
+  private String username;
+
+  public static final String JSON_PROPERTY_SINGLE_REF_TYPE = "SingleRefType";
+  private SingleRefType singleRefType;
+
+  public AllOfWithSingleRef() {
+  }
+
+  public AllOfWithSingleRef username(String username) {
+    
+    this.username = username;
+    return this;
+  }
+
+   /**
+   * Get username
+   * @return username
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_USERNAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getUsername() {
+    return username;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_USERNAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setUsername(String username) {
+    this.username = username;
+  }
+
+
+  public AllOfWithSingleRef singleRefType(SingleRefType singleRefType) {
+    
+    this.singleRefType = singleRefType;
+    return this;
+  }
+
+   /**
+   * Get singleRefType
+   * @return singleRefType
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_SINGLE_REF_TYPE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public SingleRefType getSingleRefType() {
+    return singleRefType;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_SINGLE_REF_TYPE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setSingleRefType(SingleRefType singleRefType) {
+    this.singleRefType = singleRefType;
+  }
+
+
+  @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);
+  }
+
+  @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 String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/Animal.java

@@ -23,7 +23,6 @@ import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import org.openapitools.client.model.BigCat;
 import org.openapitools.client.model.Cat;
 import org.openapitools.client.model.Dog;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -43,7 +42,6 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 )
 @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "className", visible = true)
 @JsonSubTypes({
-  @JsonSubTypes.Type(value = BigCat.class, name = "BigCat"),
   @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
   @JsonSubTypes.Type(value = Dog.class, name = "Dog"),
 })

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/Cat.java

@@ -24,7 +24,6 @@ import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
 import org.openapitools.client.model.Animal;
-import org.openapitools.client.model.BigCat;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 
@@ -40,9 +39,6 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   allowSetters = true // allows the className to be set during deserialization
 )
 @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "className", visible = true)
-@JsonSubTypes({
-  @JsonSubTypes.Type(value = BigCat.class, name = "BigCat"),
-})
 
 public class Cat extends Animal {
   public static final String JSON_PROPERTY_DECLAWED = "declawed";

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/DeprecatedObject.java

@@ -0,0 +1,106 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * DeprecatedObject
+ * @deprecated
+ */
+@Deprecated
+@JsonPropertyOrder({
+  DeprecatedObject.JSON_PROPERTY_NAME
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DeprecatedObject {
+  public static final String JSON_PROPERTY_NAME = "name";
+  private String name;
+
+  public DeprecatedObject() {
+  }
+
+  public DeprecatedObject name(String name) {
+    
+    this.name = name;
+    return this;
+  }
+
+   /**
+   * Get name
+   * @return name
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getName() {
+    return name;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setName(String name) {
+    this.name = name;
+  }
+
+
+  @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);
+  }
+
+  @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 String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/EnumTest.java

@@ -21,6 +21,13 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
 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 org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 
@@ -32,7 +39,10 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   EnumTest.JSON_PROPERTY_ENUM_STRING_REQUIRED,
   EnumTest.JSON_PROPERTY_ENUM_INTEGER,
   EnumTest.JSON_PROPERTY_ENUM_NUMBER,
-  EnumTest.JSON_PROPERTY_OUTER_ENUM
+  EnumTest.JSON_PROPERTY_OUTER_ENUM,
+  EnumTest.JSON_PROPERTY_OUTER_ENUM_INTEGER,
+  EnumTest.JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE,
+  EnumTest.JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE
 })
 @JsonTypeName("Enum_Test")
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
@@ -194,7 +204,16 @@ public class EnumTest {
   private EnumNumberEnum enumNumber;
 
   public static final String JSON_PROPERTY_OUTER_ENUM = "outerEnum";
-  private OuterEnum outerEnum;
+  private JsonNullable<OuterEnum> outerEnum = JsonNullable.<OuterEnum>undefined();
+
+  public static final String JSON_PROPERTY_OUTER_ENUM_INTEGER = "outerEnumInteger";
+  private OuterEnumInteger outerEnumInteger;
+
+  public static final String JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE = "outerEnumDefaultValue";
+  private OuterEnumDefaultValue outerEnumDefaultValue = OuterEnumDefaultValue.PLACED;
+
+  public static final String JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE = "outerEnumIntegerDefaultValue";
+  private OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue = OuterEnumIntegerDefaultValue.NUMBER_0;
 
   public EnumTest() {
   }
@@ -304,8 +323,8 @@ public class EnumTest {
 
 
   public EnumTest outerEnum(OuterEnum outerEnum) {
+    this.outerEnum = JsonNullable.<OuterEnum>of(outerEnum);
     
-    this.outerEnum = outerEnum;
     return this;
   }
 
@@ -314,18 +333,104 @@ public class EnumTest {
    * @return outerEnum
   **/
   @javax.annotation.Nullable
+  @JsonIgnore
+
+  public OuterEnum getOuterEnum() {
+        return outerEnum.orElse(null);
+  }
+
   @JsonProperty(JSON_PROPERTY_OUTER_ENUM)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
 
-  public OuterEnum getOuterEnum() {
+  public JsonNullable<OuterEnum> getOuterEnum_JsonNullable() {
     return outerEnum;
   }
+  
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM)
+  public void setOuterEnum_JsonNullable(JsonNullable<OuterEnum> outerEnum) {
+    this.outerEnum = outerEnum;
+  }
+
+  public void setOuterEnum(OuterEnum outerEnum) {
+    this.outerEnum = JsonNullable.<OuterEnum>of(outerEnum);
+  }
 
 
-  @JsonProperty(JSON_PROPERTY_OUTER_ENUM)
+  public EnumTest outerEnumInteger(OuterEnumInteger outerEnumInteger) {
+    
+    this.outerEnumInteger = outerEnumInteger;
+    return this;
+  }
+
+   /**
+   * Get outerEnumInteger
+   * @return outerEnumInteger
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOuterEnum(OuterEnum outerEnum) {
+
-    this.outerEnum = outerEnum;
+  public OuterEnumInteger getOuterEnumInteger() {
+    return outerEnumInteger;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setOuterEnumInteger(OuterEnumInteger outerEnumInteger) {
+    this.outerEnumInteger = outerEnumInteger;
+  }
+
+
+  public EnumTest outerEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+    
+    this.outerEnumDefaultValue = outerEnumDefaultValue;
+    return this;
+  }
+
+   /**
+   * Get outerEnumDefaultValue
+   * @return outerEnumDefaultValue
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public OuterEnumDefaultValue getOuterEnumDefaultValue() {
+    return outerEnumDefaultValue;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_DEFAULT_VALUE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setOuterEnumDefaultValue(OuterEnumDefaultValue outerEnumDefaultValue) {
+    this.outerEnumDefaultValue = outerEnumDefaultValue;
+  }
+
+
+  public EnumTest outerEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+    
+    this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
+    return this;
+  }
+
+   /**
+   * Get outerEnumIntegerDefaultValue
+   * @return outerEnumIntegerDefaultValue
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public OuterEnumIntegerDefaultValue getOuterEnumIntegerDefaultValue() {
+    return outerEnumIntegerDefaultValue;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OUTER_ENUM_INTEGER_DEFAULT_VALUE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setOuterEnumIntegerDefaultValue(OuterEnumIntegerDefaultValue outerEnumIntegerDefaultValue) {
+    this.outerEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
   }
 
 
@@ -342,12 +447,26 @@ public class EnumTest {
         Objects.equals(this.enumStringRequired, enumTest.enumStringRequired) &&
         Objects.equals(this.enumInteger, enumTest.enumInteger) &&
         Objects.equals(this.enumNumber, enumTest.enumNumber) &&
-        Objects.equals(this.outerEnum, enumTest.outerEnum);
+        equalsNullable(this.outerEnum, enumTest.outerEnum) &&
+        Objects.equals(this.outerEnumInteger, enumTest.outerEnumInteger) &&
+        Objects.equals(this.outerEnumDefaultValue, enumTest.outerEnumDefaultValue) &&
+        Objects.equals(this.outerEnumIntegerDefaultValue, enumTest.outerEnumIntegerDefaultValue);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(enumString, enumStringRequired, enumInteger, enumNumber, outerEnum);
+    return Objects.hash(enumString, enumStringRequired, enumInteger, enumNumber, hashCodeNullable(outerEnum), outerEnumInteger, outerEnumDefaultValue, outerEnumIntegerDefaultValue);
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
   }
 
   @Override
@@ -359,6 +478,9 @@ public class EnumTest {
     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();
   }

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/Foo.java

@@ -0,0 +1,104 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * Foo
+ */
+@JsonPropertyOrder({
+  Foo.JSON_PROPERTY_BAR
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class Foo {
+  public static final String JSON_PROPERTY_BAR = "bar";
+  private String bar = "bar";
+
+  public Foo() {
+  }
+
+  public Foo bar(String bar) {
+    
+    this.bar = bar;
+    return this;
+  }
+
+   /**
+   * Get bar
+   * @return bar
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_BAR)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getBar() {
+    return bar;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_BAR)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setBar(String bar) {
+    this.bar = bar;
+  }
+
+
+  @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);
+  }
+
+  @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 String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/FooGetDefaultResponse.java

@@ -0,0 +1,106 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.openapitools.client.model.Foo;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * FooGetDefaultResponse
+ */
+@JsonPropertyOrder({
+  FooGetDefaultResponse.JSON_PROPERTY_STRING
+})
+@JsonTypeName("_foo_get_default_response")
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class FooGetDefaultResponse {
+  public static final String JSON_PROPERTY_STRING = "string";
+  private Foo string;
+
+  public FooGetDefaultResponse() {
+  }
+
+  public FooGetDefaultResponse string(Foo string) {
+    
+    this.string = string;
+    return this;
+  }
+
+   /**
+   * Get string
+   * @return string
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_STRING)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public Foo getString() {
+    return string;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_STRING)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setString(Foo string) {
+    this.string = string;
+  }
+
+
+  @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);
+  }
+
+  @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 String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/FormatTest.java

@@ -38,6 +38,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   FormatTest.JSON_PROPERTY_NUMBER,
   FormatTest.JSON_PROPERTY_FLOAT,
   FormatTest.JSON_PROPERTY_DOUBLE,
+  FormatTest.JSON_PROPERTY_DECIMAL,
   FormatTest.JSON_PROPERTY_STRING,
   FormatTest.JSON_PROPERTY_BYTE,
   FormatTest.JSON_PROPERTY_BINARY,
@@ -45,7 +46,8 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
   FormatTest.JSON_PROPERTY_DATE_TIME,
   FormatTest.JSON_PROPERTY_UUID,
   FormatTest.JSON_PROPERTY_PASSWORD,
-  FormatTest.JSON_PROPERTY_BIG_DECIMAL
+  FormatTest.JSON_PROPERTY_PATTERN_WITH_DIGITS,
+  FormatTest.JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER
 })
 @JsonTypeName("format_test")
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
@@ -68,6 +70,9 @@ public class FormatTest {
   public static final String JSON_PROPERTY_DOUBLE = "double";
   private Double _double;
 
+  public static final String JSON_PROPERTY_DECIMAL = "decimal";
+  private BigDecimal decimal;
+
   public static final String JSON_PROPERTY_STRING = "string";
   private String string;
 
@@ -89,8 +94,11 @@ public class FormatTest {
   public static final String JSON_PROPERTY_PASSWORD = "password";
   private String password;
 
-  public static final String JSON_PROPERTY_BIG_DECIMAL = "BigDecimal";
+  public static final String JSON_PROPERTY_PATTERN_WITH_DIGITS = "pattern_with_digits";
-  private BigDecimal bigDecimal;
+  private String patternWithDigits;
+
+  public static final String JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER = "pattern_with_digits_and_delimiter";
+  private String patternWithDigitsAndDelimiter;
 
   public FormatTest() {
   }
@@ -261,6 +269,32 @@ public class FormatTest {
   }
 
 
+  public FormatTest decimal(BigDecimal decimal) {
+    
+    this.decimal = decimal;
+    return this;
+  }
+
+   /**
+   * Get decimal
+   * @return decimal
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_DECIMAL)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public BigDecimal getDecimal() {
+    return decimal;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_DECIMAL)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setDecimal(BigDecimal decimal) {
+    this.decimal = decimal;
+  }
+
+
   public FormatTest string(String string) {
     
     this.string = string;
@@ -443,29 +477,55 @@ public class FormatTest {
   }
 
 
-  public FormatTest bigDecimal(BigDecimal bigDecimal) {
+  public FormatTest patternWithDigits(String patternWithDigits) {
     
-    this.bigDecimal = bigDecimal;
+    this.patternWithDigits = patternWithDigits;
     return this;
   }
 
    /**
-   * Get bigDecimal
+   * A string that is a 10 digit number. Can have leading zeros.
-   * @return bigDecimal
+   * @return patternWithDigits
   **/
   @javax.annotation.Nullable
-  @JsonProperty(JSON_PROPERTY_BIG_DECIMAL)
+  @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
 
-  public BigDecimal getBigDecimal() {
+  public String getPatternWithDigits() {
-    return bigDecimal;
+    return patternWithDigits;
   }
 
 
-  @JsonProperty(JSON_PROPERTY_BIG_DECIMAL)
+  @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setBigDecimal(BigDecimal bigDecimal) {
+  public void setPatternWithDigits(String patternWithDigits) {
-    this.bigDecimal = bigDecimal;
+    this.patternWithDigits = patternWithDigits;
+  }
+
+
+  public FormatTest patternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+    
+    this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
+    return this;
+  }
+
+   /**
+   * A string starting with 'image_' (case insensitive) and one to three digits following i.e. Image_01.
+   * @return patternWithDigitsAndDelimiter
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getPatternWithDigitsAndDelimiter() {
+    return patternWithDigitsAndDelimiter;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_PATTERN_WITH_DIGITS_AND_DELIMITER)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setPatternWithDigitsAndDelimiter(String patternWithDigitsAndDelimiter) {
+    this.patternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
   }
 
 
@@ -484,6 +544,7 @@ public class FormatTest {
         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) &&
@@ -491,12 +552,13 @@ public class FormatTest {
         Objects.equals(this.dateTime, formatTest.dateTime) &&
         Objects.equals(this.uuid, formatTest.uuid) &&
         Objects.equals(this.password, formatTest.password) &&
-        Objects.equals(this.bigDecimal, formatTest.bigDecimal);
+        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, string, Arrays.hashCode(_byte), binary, date, dateTime, uuid, password, bigDecimal);
+    return Objects.hash(integer, int32, int64, number, _float, _double, decimal, string, Arrays.hashCode(_byte), binary, date, dateTime, uuid, password, patternWithDigits, patternWithDigitsAndDelimiter);
   }
 
   @Override
@@ -509,6 +571,7 @@ public class FormatTest {
     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");
@@ -516,7 +579,8 @@ public class FormatTest {
     sb.append("    dateTime: ").append(toIndentedString(dateTime)).append("\n");
     sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
     sb.append("    password: ").append(toIndentedString(password)).append("\n");
-    sb.append("    bigDecimal: ").append(toIndentedString(bigDecimal)).append("\n");
+    sb.append("    patternWithDigits: ").append(toIndentedString(patternWithDigits)).append("\n");
+    sb.append("    patternWithDigitsAndDelimiter: ").append(toIndentedString(patternWithDigitsAndDelimiter)).append("\n");
     sb.append("}");
     return sb.toString();
   }

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/HealthCheckResult.java

@@ -0,0 +1,127 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * Just a string to inform instance is up and running. Make it nullable in hope to get it as pointer in generated model.
+ */
+@JsonPropertyOrder({
+  HealthCheckResult.JSON_PROPERTY_NULLABLE_MESSAGE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class HealthCheckResult {
+  public static final String JSON_PROPERTY_NULLABLE_MESSAGE = "NullableMessage";
+  private JsonNullable<String> nullableMessage = JsonNullable.<String>undefined();
+
+  public HealthCheckResult() {
+  }
+
+  public HealthCheckResult nullableMessage(String nullableMessage) {
+    this.nullableMessage = JsonNullable.<String>of(nullableMessage);
+    
+    return this;
+  }
+
+   /**
+   * Get nullableMessage
+   * @return nullableMessage
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public String getNullableMessage() {
+        return nullableMessage.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_NULLABLE_MESSAGE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<String> getNullableMessage_JsonNullable() {
+    return nullableMessage;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_NULLABLE_MESSAGE)
+  public void setNullableMessage_JsonNullable(JsonNullable<String> nullableMessage) {
+    this.nullableMessage = nullableMessage;
+  }
+
+  public void setNullableMessage(String nullableMessage) {
+    this.nullableMessage = JsonNullable.<String>of(nullableMessage);
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    HealthCheckResult healthCheckResult = (HealthCheckResult) o;
+    return equalsNullable(this.nullableMessage, healthCheckResult.nullableMessage);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(hashCodeNullable(nullableMessage));
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @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 String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/NullableClass.java

@@ -0,0 +1,625 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.OffsetDateTime;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * NullableClass
+ */
+@JsonPropertyOrder({
+  NullableClass.JSON_PROPERTY_INTEGER_PROP,
+  NullableClass.JSON_PROPERTY_NUMBER_PROP,
+  NullableClass.JSON_PROPERTY_BOOLEAN_PROP,
+  NullableClass.JSON_PROPERTY_STRING_PROP,
+  NullableClass.JSON_PROPERTY_DATE_PROP,
+  NullableClass.JSON_PROPERTY_DATETIME_PROP,
+  NullableClass.JSON_PROPERTY_ARRAY_NULLABLE_PROP,
+  NullableClass.JSON_PROPERTY_ARRAY_AND_ITEMS_NULLABLE_PROP,
+  NullableClass.JSON_PROPERTY_ARRAY_ITEMS_NULLABLE,
+  NullableClass.JSON_PROPERTY_OBJECT_NULLABLE_PROP,
+  NullableClass.JSON_PROPERTY_OBJECT_AND_ITEMS_NULLABLE_PROP,
+  NullableClass.JSON_PROPERTY_OBJECT_ITEMS_NULLABLE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class NullableClass extends HashMap<String, Object> {
+  public static final String JSON_PROPERTY_INTEGER_PROP = "integer_prop";
+  private JsonNullable<Integer> integerProp = JsonNullable.<Integer>undefined();
+
+  public static final String JSON_PROPERTY_NUMBER_PROP = "number_prop";
+  private JsonNullable<BigDecimal> numberProp = JsonNullable.<BigDecimal>undefined();
+
+  public static final String JSON_PROPERTY_BOOLEAN_PROP = "boolean_prop";
+  private JsonNullable<Boolean> booleanProp = JsonNullable.<Boolean>undefined();
+
+  public static final String JSON_PROPERTY_STRING_PROP = "string_prop";
+  private JsonNullable<String> stringProp = JsonNullable.<String>undefined();
+
+  public static final String JSON_PROPERTY_DATE_PROP = "date_prop";
+  private JsonNullable<LocalDate> dateProp = JsonNullable.<LocalDate>undefined();
+
+  public static final String JSON_PROPERTY_DATETIME_PROP = "datetime_prop";
+  private JsonNullable<OffsetDateTime> datetimeProp = JsonNullable.<OffsetDateTime>undefined();
+
+  public static final String JSON_PROPERTY_ARRAY_NULLABLE_PROP = "array_nullable_prop";
+  private JsonNullable<List<Object>> arrayNullableProp = JsonNullable.<List<Object>>undefined();
+
+  public static final String JSON_PROPERTY_ARRAY_AND_ITEMS_NULLABLE_PROP = "array_and_items_nullable_prop";
+  private JsonNullable<List<Object>> arrayAndItemsNullableProp = JsonNullable.<List<Object>>undefined();
+
+  public static final String JSON_PROPERTY_ARRAY_ITEMS_NULLABLE = "array_items_nullable";
+  private List<Object> arrayItemsNullable = null;
+
+  public static final String JSON_PROPERTY_OBJECT_NULLABLE_PROP = "object_nullable_prop";
+  private JsonNullable<Map<String, Object>> objectNullableProp = JsonNullable.<Map<String, Object>>undefined();
+
+  public static final String JSON_PROPERTY_OBJECT_AND_ITEMS_NULLABLE_PROP = "object_and_items_nullable_prop";
+  private JsonNullable<Map<String, Object>> objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>undefined();
+
+  public static final String JSON_PROPERTY_OBJECT_ITEMS_NULLABLE = "object_items_nullable";
+  private Map<String, Object> objectItemsNullable = null;
+
+  public NullableClass() {
+
+  }
+
+  public NullableClass integerProp(Integer integerProp) {
+    this.integerProp = JsonNullable.<Integer>of(integerProp);
+    
+    return this;
+  }
+
+   /**
+   * Get integerProp
+   * @return integerProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public Integer getIntegerProp() {
+        return integerProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_INTEGER_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<Integer> getIntegerProp_JsonNullable() {
+    return integerProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_INTEGER_PROP)
+  public void setIntegerProp_JsonNullable(JsonNullable<Integer> integerProp) {
+    this.integerProp = integerProp;
+  }
+
+  public void setIntegerProp(Integer integerProp) {
+    this.integerProp = JsonNullable.<Integer>of(integerProp);
+  }
+
+
+  public NullableClass numberProp(BigDecimal numberProp) {
+    this.numberProp = JsonNullable.<BigDecimal>of(numberProp);
+    
+    return this;
+  }
+
+   /**
+   * Get numberProp
+   * @return numberProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public BigDecimal getNumberProp() {
+        return numberProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_NUMBER_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<BigDecimal> getNumberProp_JsonNullable() {
+    return numberProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_NUMBER_PROP)
+  public void setNumberProp_JsonNullable(JsonNullable<BigDecimal> numberProp) {
+    this.numberProp = numberProp;
+  }
+
+  public void setNumberProp(BigDecimal numberProp) {
+    this.numberProp = JsonNullable.<BigDecimal>of(numberProp);
+  }
+
+
+  public NullableClass booleanProp(Boolean booleanProp) {
+    this.booleanProp = JsonNullable.<Boolean>of(booleanProp);
+    
+    return this;
+  }
+
+   /**
+   * Get booleanProp
+   * @return booleanProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public Boolean getBooleanProp() {
+        return booleanProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_BOOLEAN_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<Boolean> getBooleanProp_JsonNullable() {
+    return booleanProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_BOOLEAN_PROP)
+  public void setBooleanProp_JsonNullable(JsonNullable<Boolean> booleanProp) {
+    this.booleanProp = booleanProp;
+  }
+
+  public void setBooleanProp(Boolean booleanProp) {
+    this.booleanProp = JsonNullable.<Boolean>of(booleanProp);
+  }
+
+
+  public NullableClass stringProp(String stringProp) {
+    this.stringProp = JsonNullable.<String>of(stringProp);
+    
+    return this;
+  }
+
+   /**
+   * Get stringProp
+   * @return stringProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public String getStringProp() {
+        return stringProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_STRING_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<String> getStringProp_JsonNullable() {
+    return stringProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_STRING_PROP)
+  public void setStringProp_JsonNullable(JsonNullable<String> stringProp) {
+    this.stringProp = stringProp;
+  }
+
+  public void setStringProp(String stringProp) {
+    this.stringProp = JsonNullable.<String>of(stringProp);
+  }
+
+
+  public NullableClass dateProp(LocalDate dateProp) {
+    this.dateProp = JsonNullable.<LocalDate>of(dateProp);
+    
+    return this;
+  }
+
+   /**
+   * Get dateProp
+   * @return dateProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public LocalDate getDateProp() {
+        return dateProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_DATE_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<LocalDate> getDateProp_JsonNullable() {
+    return dateProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_DATE_PROP)
+  public void setDateProp_JsonNullable(JsonNullable<LocalDate> dateProp) {
+    this.dateProp = dateProp;
+  }
+
+  public void setDateProp(LocalDate dateProp) {
+    this.dateProp = JsonNullable.<LocalDate>of(dateProp);
+  }
+
+
+  public NullableClass datetimeProp(OffsetDateTime datetimeProp) {
+    this.datetimeProp = JsonNullable.<OffsetDateTime>of(datetimeProp);
+    
+    return this;
+  }
+
+   /**
+   * Get datetimeProp
+   * @return datetimeProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public OffsetDateTime getDatetimeProp() {
+        return datetimeProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_DATETIME_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<OffsetDateTime> getDatetimeProp_JsonNullable() {
+    return datetimeProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_DATETIME_PROP)
+  public void setDatetimeProp_JsonNullable(JsonNullable<OffsetDateTime> datetimeProp) {
+    this.datetimeProp = datetimeProp;
+  }
+
+  public void setDatetimeProp(OffsetDateTime datetimeProp) {
+    this.datetimeProp = JsonNullable.<OffsetDateTime>of(datetimeProp);
+  }
+
+
+  public NullableClass arrayNullableProp(List<Object> arrayNullableProp) {
+    this.arrayNullableProp = JsonNullable.<List<Object>>of(arrayNullableProp);
+    
+    return this;
+  }
+
+  public NullableClass addArrayNullablePropItem(Object arrayNullablePropItem) {
+    if (this.arrayNullableProp == null || !this.arrayNullableProp.isPresent()) {
+      this.arrayNullableProp = JsonNullable.<List<Object>>of(new ArrayList<>());
+    }
+    try {
+      this.arrayNullableProp.get().add(arrayNullablePropItem);
+    } catch (java.util.NoSuchElementException e) {
+      // this can never happen, as we make sure above that the value is present
+    }
+    return this;
+  }
+
+   /**
+   * Get arrayNullableProp
+   * @return arrayNullableProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public List<Object> getArrayNullableProp() {
+        return arrayNullableProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_ARRAY_NULLABLE_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<List<Object>> getArrayNullableProp_JsonNullable() {
+    return arrayNullableProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_ARRAY_NULLABLE_PROP)
+  public void setArrayNullableProp_JsonNullable(JsonNullable<List<Object>> arrayNullableProp) {
+    this.arrayNullableProp = arrayNullableProp;
+  }
+
+  public void setArrayNullableProp(List<Object> arrayNullableProp) {
+    this.arrayNullableProp = JsonNullable.<List<Object>>of(arrayNullableProp);
+  }
+
+
+  public NullableClass arrayAndItemsNullableProp(List<Object> arrayAndItemsNullableProp) {
+    this.arrayAndItemsNullableProp = JsonNullable.<List<Object>>of(arrayAndItemsNullableProp);
+    
+    return this;
+  }
+
+  public NullableClass addArrayAndItemsNullablePropItem(Object arrayAndItemsNullablePropItem) {
+    if (this.arrayAndItemsNullableProp == null || !this.arrayAndItemsNullableProp.isPresent()) {
+      this.arrayAndItemsNullableProp = JsonNullable.<List<Object>>of(new ArrayList<>());
+    }
+    try {
+      this.arrayAndItemsNullableProp.get().add(arrayAndItemsNullablePropItem);
+    } catch (java.util.NoSuchElementException e) {
+      // this can never happen, as we make sure above that the value is present
+    }
+    return this;
+  }
+
+   /**
+   * Get arrayAndItemsNullableProp
+   * @return arrayAndItemsNullableProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public List<Object> getArrayAndItemsNullableProp() {
+        return arrayAndItemsNullableProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_ARRAY_AND_ITEMS_NULLABLE_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<List<Object>> getArrayAndItemsNullableProp_JsonNullable() {
+    return arrayAndItemsNullableProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_ARRAY_AND_ITEMS_NULLABLE_PROP)
+  public void setArrayAndItemsNullableProp_JsonNullable(JsonNullable<List<Object>> arrayAndItemsNullableProp) {
+    this.arrayAndItemsNullableProp = arrayAndItemsNullableProp;
+  }
+
+  public void setArrayAndItemsNullableProp(List<Object> arrayAndItemsNullableProp) {
+    this.arrayAndItemsNullableProp = JsonNullable.<List<Object>>of(arrayAndItemsNullableProp);
+  }
+
+
+  public NullableClass arrayItemsNullable(List<Object> arrayItemsNullable) {
+    
+    this.arrayItemsNullable = arrayItemsNullable;
+    return this;
+  }
+
+  public NullableClass addArrayItemsNullableItem(Object arrayItemsNullableItem) {
+    if (this.arrayItemsNullable == null) {
+      this.arrayItemsNullable = new ArrayList<>();
+    }
+    this.arrayItemsNullable.add(arrayItemsNullableItem);
+    return this;
+  }
+
+   /**
+   * Get arrayItemsNullable
+   * @return arrayItemsNullable
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ARRAY_ITEMS_NULLABLE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public List<Object> getArrayItemsNullable() {
+    return arrayItemsNullable;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ARRAY_ITEMS_NULLABLE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setArrayItemsNullable(List<Object> arrayItemsNullable) {
+    this.arrayItemsNullable = arrayItemsNullable;
+  }
+
+
+  public NullableClass objectNullableProp(Map<String, Object> objectNullableProp) {
+    this.objectNullableProp = JsonNullable.<Map<String, Object>>of(objectNullableProp);
+    
+    return this;
+  }
+
+  public NullableClass putObjectNullablePropItem(String key, Object objectNullablePropItem) {
+    if (this.objectNullableProp == null || !this.objectNullableProp.isPresent()) {
+      this.objectNullableProp = JsonNullable.<Map<String, Object>>of(new HashMap<>());
+    }
+    try {
+      this.objectNullableProp.get().put(key, objectNullablePropItem);
+    } catch (java.util.NoSuchElementException e) {
+      // this can never happen, as we make sure above that the value is present
+    }
+    return this;
+  }
+
+   /**
+   * Get objectNullableProp
+   * @return objectNullableProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public Map<String, Object> getObjectNullableProp() {
+        return objectNullableProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_OBJECT_NULLABLE_PROP)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<Map<String, Object>> getObjectNullableProp_JsonNullable() {
+    return objectNullableProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_OBJECT_NULLABLE_PROP)
+  public void setObjectNullableProp_JsonNullable(JsonNullable<Map<String, Object>> objectNullableProp) {
+    this.objectNullableProp = objectNullableProp;
+  }
+
+  public void setObjectNullableProp(Map<String, Object> objectNullableProp) {
+    this.objectNullableProp = JsonNullable.<Map<String, Object>>of(objectNullableProp);
+  }
+
+
+  public NullableClass objectAndItemsNullableProp(Map<String, Object> objectAndItemsNullableProp) {
+    this.objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>of(objectAndItemsNullableProp);
+    
+    return this;
+  }
+
+  public NullableClass putObjectAndItemsNullablePropItem(String key, Object objectAndItemsNullablePropItem) {
+    if (this.objectAndItemsNullableProp == null || !this.objectAndItemsNullableProp.isPresent()) {
+      this.objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>of(new HashMap<>());
+    }
+    try {
+      this.objectAndItemsNullableProp.get().put(key, objectAndItemsNullablePropItem);
+    } catch (java.util.NoSuchElementException e) {
+      // this can never happen, as we make sure above that the value is present
+    }
+    return this;
+  }
+
+   /**
+   * Get objectAndItemsNullableProp
+   * @return objectAndItemsNullableProp
+  **/
+  @javax.annotation.Nullable
+  @JsonIgnore
+
+  public Map<String, Object> getObjectAndItemsNullableProp() {
+        return objectAndItemsNullableProp.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_OBJECT_AND_ITEMS_NULLABLE_PROP)
+  @JsonInclude(content = JsonInclude.Include.ALWAYS, value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<Map<String, Object>> getObjectAndItemsNullableProp_JsonNullable() {
+    return objectAndItemsNullableProp;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_OBJECT_AND_ITEMS_NULLABLE_PROP)
+  public void setObjectAndItemsNullableProp_JsonNullable(JsonNullable<Map<String, Object>> objectAndItemsNullableProp) {
+    this.objectAndItemsNullableProp = objectAndItemsNullableProp;
+  }
+
+  public void setObjectAndItemsNullableProp(Map<String, Object> objectAndItemsNullableProp) {
+    this.objectAndItemsNullableProp = JsonNullable.<Map<String, Object>>of(objectAndItemsNullableProp);
+  }
+
+
+  public NullableClass objectItemsNullable(Map<String, Object> objectItemsNullable) {
+    
+    this.objectItemsNullable = objectItemsNullable;
+    return this;
+  }
+
+  public NullableClass putObjectItemsNullableItem(String key, Object objectItemsNullableItem) {
+    if (this.objectItemsNullable == null) {
+      this.objectItemsNullable = new HashMap<>();
+    }
+    this.objectItemsNullable.put(key, objectItemsNullableItem);
+    return this;
+  }
+
+   /**
+   * Get objectItemsNullable
+   * @return objectItemsNullable
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_OBJECT_ITEMS_NULLABLE)
+  @JsonInclude(content = JsonInclude.Include.ALWAYS, value = JsonInclude.Include.USE_DEFAULTS)
+
+  public Map<String, Object> getObjectItemsNullable() {
+    return objectItemsNullable;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OBJECT_ITEMS_NULLABLE)
+  @JsonInclude(content = JsonInclude.Include.ALWAYS, value = JsonInclude.Include.USE_DEFAULTS)
+  public void setObjectItemsNullable(Map<String, Object> objectItemsNullable) {
+    this.objectItemsNullable = objectItemsNullable;
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    NullableClass nullableClass = (NullableClass) o;
+    return equalsNullable(this.integerProp, nullableClass.integerProp) &&
+        equalsNullable(this.numberProp, nullableClass.numberProp) &&
+        equalsNullable(this.booleanProp, nullableClass.booleanProp) &&
+        equalsNullable(this.stringProp, nullableClass.stringProp) &&
+        equalsNullable(this.dateProp, nullableClass.dateProp) &&
+        equalsNullable(this.datetimeProp, nullableClass.datetimeProp) &&
+        equalsNullable(this.arrayNullableProp, nullableClass.arrayNullableProp) &&
+        equalsNullable(this.arrayAndItemsNullableProp, nullableClass.arrayAndItemsNullableProp) &&
+        Objects.equals(this.arrayItemsNullable, nullableClass.arrayItemsNullable) &&
+        equalsNullable(this.objectNullableProp, nullableClass.objectNullableProp) &&
+        equalsNullable(this.objectAndItemsNullableProp, nullableClass.objectAndItemsNullableProp) &&
+        Objects.equals(this.objectItemsNullable, nullableClass.objectItemsNullable) &&
+        super.equals(o);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(hashCodeNullable(integerProp), hashCodeNullable(numberProp), hashCodeNullable(booleanProp), hashCodeNullable(stringProp), hashCodeNullable(dateProp), hashCodeNullable(datetimeProp), hashCodeNullable(arrayNullableProp), hashCodeNullable(arrayAndItemsNullableProp), arrayItemsNullable, hashCodeNullable(objectNullableProp), hashCodeNullable(objectAndItemsNullableProp), objectItemsNullable, super.hashCode());
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class NullableClass {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    integerProp: ").append(toIndentedString(integerProp)).append("\n");
+    sb.append("    numberProp: ").append(toIndentedString(numberProp)).append("\n");
+    sb.append("    booleanProp: ").append(toIndentedString(booleanProp)).append("\n");
+    sb.append("    stringProp: ").append(toIndentedString(stringProp)).append("\n");
+    sb.append("    dateProp: ").append(toIndentedString(dateProp)).append("\n");
+    sb.append("    datetimeProp: ").append(toIndentedString(datetimeProp)).append("\n");
+    sb.append("    arrayNullableProp: ").append(toIndentedString(arrayNullableProp)).append("\n");
+    sb.append("    arrayAndItemsNullableProp: ").append(toIndentedString(arrayAndItemsNullableProp)).append("\n");
+    sb.append("    arrayItemsNullable: ").append(toIndentedString(arrayItemsNullable)).append("\n");
+    sb.append("    objectNullableProp: ").append(toIndentedString(objectNullableProp)).append("\n");
+    sb.append("    objectAndItemsNullableProp: ").append(toIndentedString(objectAndItemsNullableProp)).append("\n");
+    sb.append("    objectItemsNullable: ").append(toIndentedString(objectItemsNullable)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/ObjectWithDeprecatedFields.java

@@ -0,0 +1,218 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+import org.openapitools.client.model.DeprecatedObject;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * ObjectWithDeprecatedFields
+ */
+@JsonPropertyOrder({
+  ObjectWithDeprecatedFields.JSON_PROPERTY_UUID,
+  ObjectWithDeprecatedFields.JSON_PROPERTY_ID,
+  ObjectWithDeprecatedFields.JSON_PROPERTY_DEPRECATED_REF,
+  ObjectWithDeprecatedFields.JSON_PROPERTY_BARS
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class ObjectWithDeprecatedFields {
+  public static final String JSON_PROPERTY_UUID = "uuid";
+  private String uuid;
+
+  public static final String JSON_PROPERTY_ID = "id";
+  private BigDecimal id;
+
+  public static final String JSON_PROPERTY_DEPRECATED_REF = "deprecatedRef";
+  private DeprecatedObject deprecatedRef;
+
+  public static final String JSON_PROPERTY_BARS = "bars";
+  private List<String> bars = null;
+
+  public ObjectWithDeprecatedFields() {
+  }
+
+  public ObjectWithDeprecatedFields uuid(String uuid) {
+    
+    this.uuid = uuid;
+    return this;
+  }
+
+   /**
+   * Get uuid
+   * @return uuid
+  **/
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_UUID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getUuid() {
+    return uuid;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_UUID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setUuid(String uuid) {
+    this.uuid = uuid;
+  }
+
+
+  public ObjectWithDeprecatedFields id(BigDecimal id) {
+    
+    this.id = id;
+    return this;
+  }
+
+   /**
+   * Get id
+   * @return id
+   * @deprecated
+  **/
+  @Deprecated
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public BigDecimal getId() {
+    return id;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_ID)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setId(BigDecimal id) {
+    this.id = id;
+  }
+
+
+  public ObjectWithDeprecatedFields deprecatedRef(DeprecatedObject deprecatedRef) {
+    
+    this.deprecatedRef = deprecatedRef;
+    return this;
+  }
+
+   /**
+   * Get deprecatedRef
+   * @return deprecatedRef
+   * @deprecated
+  **/
+  @Deprecated
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_DEPRECATED_REF)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public DeprecatedObject getDeprecatedRef() {
+    return deprecatedRef;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_DEPRECATED_REF)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setDeprecatedRef(DeprecatedObject deprecatedRef) {
+    this.deprecatedRef = deprecatedRef;
+  }
+
+
+  public ObjectWithDeprecatedFields bars(List<String> bars) {
+    
+    this.bars = bars;
+    return this;
+  }
+
+  public ObjectWithDeprecatedFields addBarsItem(String barsItem) {
+    if (this.bars == null) {
+      this.bars = new ArrayList<>();
+    }
+    this.bars.add(barsItem);
+    return this;
+  }
+
+   /**
+   * Get bars
+   * @return bars
+   * @deprecated
+  **/
+  @Deprecated
+  @javax.annotation.Nullable
+  @JsonProperty(JSON_PROPERTY_BARS)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public List<String> getBars() {
+    return bars;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_BARS)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setBars(List<String> bars) {
+    this.bars = bars;
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ObjectWithDeprecatedFields objectWithDeprecatedFields = (ObjectWithDeprecatedFields) o;
+    return Objects.equals(this.uuid, objectWithDeprecatedFields.uuid) &&
+        Objects.equals(this.id, objectWithDeprecatedFields.id) &&
+        Objects.equals(this.deprecatedRef, objectWithDeprecatedFields.deprecatedRef) &&
+        Objects.equals(this.bars, objectWithDeprecatedFields.bars);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(uuid, id, deprecatedRef, bars);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ObjectWithDeprecatedFields {\n");
+    sb.append("    uuid: ").append(toIndentedString(uuid)).append("\n");
+    sb.append("    id: ").append(toIndentedString(id)).append("\n");
+    sb.append("    deprecatedRef: ").append(toIndentedString(deprecatedRef)).append("\n");
+    sb.append("    bars: ").append(toIndentedString(bars)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/OuterEnum.java

@@ -55,7 +55,7 @@ public enum OuterEnum {
         return b;
       }
     }
-    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+    return null;
   }
 }
 

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/OuterEnumDefaultValue.java

@@ -0,0 +1,61 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets OuterEnumDefaultValue
+ */
+public enum OuterEnumDefaultValue {
+  
+  PLACED("placed"),
+  
+  APPROVED("approved"),
+  
+  DELIVERED("delivered");
+
+  private String value;
+
+  OuterEnumDefaultValue(String value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static OuterEnumDefaultValue fromValue(String value) {
+    for (OuterEnumDefaultValue b : OuterEnumDefaultValue.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/OuterEnumInteger.java

@@ -0,0 +1,61 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets OuterEnumInteger
+ */
+public enum OuterEnumInteger {
+  
+  NUMBER_0(0),
+  
+  NUMBER_1(1),
+  
+  NUMBER_2(2);
+
+  private Integer value;
+
+  OuterEnumInteger(Integer value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public Integer getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static OuterEnumInteger fromValue(Integer value) {
+    for (OuterEnumInteger b : OuterEnumInteger.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/OuterEnumIntegerDefaultValue.java

@@ -0,0 +1,61 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets OuterEnumIntegerDefaultValue
+ */
+public enum OuterEnumIntegerDefaultValue {
+  
+  NUMBER_0(0),
+  
+  NUMBER_1(1),
+  
+  NUMBER_2(2);
+
+  private Integer value;
+
+  OuterEnumIntegerDefaultValue(Integer value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public Integer getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static OuterEnumIntegerDefaultValue fromValue(Integer value) {
+    for (OuterEnumIntegerDefaultValue b : OuterEnumIntegerDefaultValue.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/OuterObjectWithEnumProperty.java

@@ -0,0 +1,105 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.openapitools.client.model.OuterEnumInteger;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * OuterObjectWithEnumProperty
+ */
+@JsonPropertyOrder({
+  OuterObjectWithEnumProperty.JSON_PROPERTY_VALUE
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class OuterObjectWithEnumProperty {
+  public static final String JSON_PROPERTY_VALUE = "value";
+  private OuterEnumInteger value;
+
+  public OuterObjectWithEnumProperty() {
+  }
+
+  public OuterObjectWithEnumProperty value(OuterEnumInteger value) {
+    
+    this.value = value;
+    return this;
+  }
+
+   /**
+   * Get value
+   * @return value
+  **/
+  @javax.annotation.Nonnull
+  @JsonProperty(JSON_PROPERTY_VALUE)
+  @JsonInclude(value = JsonInclude.Include.ALWAYS)
+
+  public OuterEnumInteger getValue() {
+    return value;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_VALUE)
+  @JsonInclude(value = JsonInclude.Include.ALWAYS)
+  public void setValue(OuterEnumInteger value) {
+    this.value = value;
+  }
+
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    OuterObjectWithEnumProperty outerObjectWithEnumProperty = (OuterObjectWithEnumProperty) o;
+    return Objects.equals(this.value, outerObjectWithEnumProperty.value);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(value);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class OuterObjectWithEnumProperty {\n");
+    sb.append("    value: ").append(toIndentedString(value)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/SingleRefType.java

@@ -0,0 +1,59 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonValue;
+
+/**
+ * Gets or Sets SingleRefType
+ */
+public enum SingleRefType {
+  
+  ADMIN("admin"),
+  
+  USER("user");
+
+  private String value;
+
+  SingleRefType(String value) {
+    this.value = value;
+  }
+
+  @JsonValue
+  public String getValue() {
+    return value;
+  }
+
+  @Override
+  public String toString() {
+    return String.valueOf(value);
+  }
+
+  @JsonCreator
+  public static SingleRefType fromValue(String value) {
+    for (SingleRefType b : SingleRefType.values()) {
+      if (b.value.equals(value)) {
+        return b;
+      }
+    }
+    throw new IllegalArgumentException("Unexpected value '" + value + "'");
+  }
+}
+

samples/client/petstore/java/apache-httpclient/src/main/java/org/openapitools/client/model/SpecialModelName.java

@@ -29,7 +29,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 @JsonPropertyOrder({
   SpecialModelName.JSON_PROPERTY_$_SPECIAL_PROPERTY_NAME
 })
-@JsonTypeName("$special[model.name]")
+@JsonTypeName("_special_model.name_")
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class SpecialModelName {
   public static final String JSON_PROPERTY_$_SPECIAL_PROPERTY_NAME = "$special[property.name]";
@@ -72,8 +72,8 @@ public class SpecialModelName {
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
-    SpecialModelName $specialModelName = (SpecialModelName) o;
+    SpecialModelName specialModelName = (SpecialModelName) o;
-    return Objects.equals(this.$specialPropertyName, $specialModelName.$specialPropertyName);
+    return Objects.equals(this.$specialPropertyName, specialModelName.$specialPropertyName);
   }
 
   @Override

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/api/DefaultApiTest.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.ApiException;
+import org.openapitools.client.model.FooGetDefaultResponse;
+import org.junit.Test;
+import org.junit.Ignore;
+import org.junit.Assert;
+
+import java.time.LocalDate;
+import java.time.OffsetDateTime;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * API tests for DefaultApi
+ */
+@Ignore
+public class DefaultApiTest {
+
+    private final DefaultApi api = new DefaultApi();
+
+    /**
+     * @throws ApiException
+     *          if the Api call fails
+     */
+    @Test
+    public void fooGetTest() throws ApiException {
+        FooGetDefaultResponse response = api.fooGet();
+
+        // TODO: test validations
+    }
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/api/FakeApiTest.java

@@ -16,17 +16,22 @@ package org.openapitools.client.api;
 import org.openapitools.client.ApiException;
 import java.math.BigDecimal;
 import org.openapitools.client.model.Client;
+import org.openapitools.client.model.EnumClass;
 import java.io.File;
 import org.openapitools.client.model.FileSchemaTestClass;
+import org.openapitools.client.model.HealthCheckResult;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.OuterComposite;
+import org.openapitools.client.model.OuterObjectWithEnumProperty;
+import org.openapitools.client.model.Pet;
 import org.openapitools.client.model.User;
-import org.openapitools.client.model.XmlItem;
 import org.junit.Test;
 import org.junit.Ignore;
 import org.junit.Assert;
 
+import java.time.LocalDate;
+import java.time.OffsetDateTime;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -41,17 +46,29 @@ public class FakeApiTest {
     private final FakeApi api = new FakeApi();
 
     /**
-     * creates an XmlItem
+     * Health check endpoint
-     *
-     * this route creates an XmlItem
      *
      * @throws ApiException
      *          if the Api call fails
      */
     @Test
-    public void createXmlItemTest() throws ApiException {
+    public void fakeHealthGetTest() throws ApiException {
-        XmlItem xmlItem = null;
+        HealthCheckResult response = api.fakeHealthGet();
-        api.createXmlItem(xmlItem);
+
+        // TODO: test validations
+    }
+    /**
+     * test http signature authentication
+     *
+     * @throws ApiException
+     *          if the Api call fails
+     */
+    @Test
+    public void fakeHttpSignatureTestTest() throws ApiException {
+        Pet pet = null;
+        String query1 = null;
+        String header1 = null;
+        api.fakeHttpSignatureTest(pet, query1, header1);
 
         // TODO: test validations
     }
@@ -76,8 +93,8 @@ public class FakeApiTest {
      */
     @Test
     public void fakeOuterCompositeSerializeTest() throws ApiException {
-        OuterComposite body = null;
+        OuterComposite outerComposite = null;
-        OuterComposite response = api.fakeOuterCompositeSerialize(body);
+        OuterComposite response = api.fakeOuterCompositeSerialize(outerComposite);
 
         // TODO: test validations
     }
@@ -108,15 +125,41 @@ public class FakeApiTest {
         // TODO: test validations
     }
     /**
-     * For this test, the body for this request much reference a schema named `File`.
+     * Test serialization of enum (int) properties with examples
+     *
+     * @throws ApiException
+     *          if the Api call fails
+     */
+    @Test
+    public void fakePropertyEnumIntegerSerializeTest() throws ApiException {
+        OuterObjectWithEnumProperty outerObjectWithEnumProperty = null;
+        OuterObjectWithEnumProperty response = api.fakePropertyEnumIntegerSerialize(outerObjectWithEnumProperty);
+
+        // TODO: test validations
+    }
+    /**
+     * For this test, the body has to be a binary file.
+     *
+     * @throws ApiException
+     *          if the Api call fails
+     */
+    @Test
+    public void testBodyWithBinaryTest() throws ApiException {
+        File body = null;
+        api.testBodyWithBinary(body);
+
+        // TODO: test validations
+    }
+    /**
+     * For this test, the body for this request must reference a schema named `File`.
      *
      * @throws ApiException
      *          if the Api call fails
      */
     @Test
     public void testBodyWithFileSchemaTest() throws ApiException {
-        FileSchemaTestClass body = null;
+        FileSchemaTestClass fileSchemaTestClass = null;
-        api.testBodyWithFileSchema(body);
+        api.testBodyWithFileSchema(fileSchemaTestClass);
 
         // TODO: test validations
     }
@@ -127,8 +170,8 @@ public class FakeApiTest {
     @Test
     public void testBodyWithQueryParamsTest() throws ApiException {
         String query = null;
-        User body = null;
+        User user = null;
-        api.testBodyWithQueryParams(query, body);
+        api.testBodyWithQueryParams(query, user);
 
         // TODO: test validations
     }
@@ -142,15 +185,15 @@ public class FakeApiTest {
      */
     @Test
     public void testClientModelTest() throws ApiException {
-        Client body = null;
+        Client client = null;
-        Client response = api.testClientModel(body);
+        Client response = api.testClientModel(client);
 
         // TODO: test validations
     }
     /**
-     * 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 
      *
-     * 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 
      *
      * @throws ApiException
      *          if the Api call fails
@@ -191,9 +234,10 @@ public class FakeApiTest {
         String enumQueryString = null;
         Integer enumQueryInteger = null;
         Double enumQueryDouble = null;
+        List<EnumClass> enumQueryModelArray = null;
         List<String> enumFormStringArray = null;
         String enumFormString = null;
-        api.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+        api.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString);
 
         // TODO: test validations
     }
@@ -220,19 +264,23 @@ public class FakeApiTest {
     /**
      * test inline additionalProperties
      *
+     * 
+     *
      * @throws ApiException
      *          if the Api call fails
      */
     @Test
     public void testInlineAdditionalPropertiesTest() throws ApiException {
-        Map<String, String> param = null;
+        Map<String, String> requestBody = null;
-        api.testInlineAdditionalProperties(param);
+        api.testInlineAdditionalProperties(requestBody);
 
         // TODO: test validations
     }
     /**
      * test json serialization of form data
      *
+     * 
+     *
      * @throws ApiException
      *          if the Api call fails
      */
@@ -257,7 +305,9 @@ public class FakeApiTest {
         List<String> http = null;
         List<String> url = null;
         List<String> context = null;
-        api.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context);
+        String allowEmpty = null;
+        Map<String, String> language = null;
+        api.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context, allowEmpty, language);
 
         // TODO: test validations
     }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/AllOfWithSingleRefTest.java

@@ -18,33 +18,40 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import java.util.HashMap;
+import org.openapitools.client.model.SingleRefType;
-import java.util.Map;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
 
 /**
- * Model tests for AdditionalPropertiesInteger
+ * Model tests for AllOfWithSingleRef
  */
-public class AdditionalPropertiesIntegerTest {
+public class AllOfWithSingleRefTest {
-    private final AdditionalPropertiesInteger model = new AdditionalPropertiesInteger();
+    private final AllOfWithSingleRef model = new AllOfWithSingleRef();
 
     /**
-     * Model tests for AdditionalPropertiesInteger
+     * Model tests for AllOfWithSingleRef
      */
     @Test
-    public void testAdditionalPropertiesInteger() {
+    public void testAllOfWithSingleRef() {
-        // TODO: test AdditionalPropertiesInteger
+        // TODO: test AllOfWithSingleRef
     }
 
     /**
-     * Test the property 'name'
+     * Test the property 'username'
      */
     @Test
-    public void nameTest() {
+    public void usernameTest() {
-        // TODO: test name
+        // TODO: test username
+    }
+
+    /**
+     * Test the property 'singleRefType'
+     */
+    @Test
+    public void singleRefTypeTest() {
+        // TODO: test singleRefType
     }
 
 }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/DeprecatedObjectTest.java

@@ -18,25 +18,23 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import java.util.HashMap;
-import java.util.Map;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
 
 /**
- * Model tests for AdditionalPropertiesString
+ * Model tests for DeprecatedObject
  */
-public class AdditionalPropertiesStringTest {
+public class DeprecatedObjectTest {
-    private final AdditionalPropertiesString model = new AdditionalPropertiesString();
+    private final DeprecatedObject model = new DeprecatedObject();
 
     /**
-     * Model tests for AdditionalPropertiesString
+     * Model tests for DeprecatedObject
      */
     @Test
-    public void testAdditionalPropertiesString() {
+    public void testDeprecatedObject() {
-        // TODO: test AdditionalPropertiesString
+        // TODO: test DeprecatedObject
     }
 
     /**

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/FooGetDefaultResponseTest.java

@@ -18,33 +18,32 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import java.util.HashMap;
+import org.openapitools.client.model.Foo;
-import java.util.Map;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
 
 /**
- * Model tests for AdditionalPropertiesObject
+ * Model tests for FooGetDefaultResponse
  */
-public class AdditionalPropertiesObjectTest {
+public class FooGetDefaultResponseTest {
-    private final AdditionalPropertiesObject model = new AdditionalPropertiesObject();
+    private final FooGetDefaultResponse model = new FooGetDefaultResponse();
 
     /**
-     * Model tests for AdditionalPropertiesObject
+     * Model tests for FooGetDefaultResponse
      */
     @Test
-    public void testAdditionalPropertiesObject() {
+    public void testFooGetDefaultResponse() {
-        // TODO: test AdditionalPropertiesObject
+        // TODO: test FooGetDefaultResponse
     }
 
     /**
-     * Test the property 'name'
+     * Test the property 'string'
      */
     @Test
-    public void nameTest() {
+    public void stringTest() {
-        // TODO: test name
+        // TODO: test string
     }
 
 }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/FooTest.java

@@ -24,25 +24,25 @@ import org.junit.Test;
 
 
 /**
- * Model tests for BigCatAllOf
+ * Model tests for Foo
  */
-public class BigCatAllOfTest {
+public class FooTest {
-    private final BigCatAllOf model = new BigCatAllOf();
+    private final Foo model = new Foo();
 
     /**
-     * Model tests for BigCatAllOf
+     * Model tests for Foo
      */
     @Test
-    public void testBigCatAllOf() {
+    public void testFoo() {
-        // TODO: test BigCatAllOf
+        // TODO: test Foo
     }
 
     /**
-     * Test the property 'kind'
+     * Test the property 'bar'
      */
     @Test
-    public void kindTest() {
+    public void barTest() {
-        // TODO: test kind
+        // TODO: test bar
     }
 
 }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/HealthCheckResultTest.java

@@ -0,0 +1,52 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for HealthCheckResult
+ */
+public class HealthCheckResultTest {
+    private final HealthCheckResult model = new HealthCheckResult();
+
+    /**
+     * Model tests for HealthCheckResult
+     */
+    @Test
+    public void testHealthCheckResult() {
+        // TODO: test HealthCheckResult
+    }
+
+    /**
+     * Test the property 'nullableMessage'
+     */
+    @Test
+    public void nullableMessageTest() {
+        // TODO: test nullableMessage
+    }
+
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/NullableClassTest.java

@@ -0,0 +1,147 @@
+/*
+ * 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 com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.OffsetDateTime;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for NullableClass
+ */
+public class NullableClassTest {
+    private final NullableClass model = new NullableClass();
+
+    /**
+     * Model tests for NullableClass
+     */
+    @Test
+    public void testNullableClass() {
+        // TODO: test NullableClass
+    }
+
+    /**
+     * Test the property 'integerProp'
+     */
+    @Test
+    public void integerPropTest() {
+        // TODO: test integerProp
+    }
+
+    /**
+     * Test the property 'numberProp'
+     */
+    @Test
+    public void numberPropTest() {
+        // TODO: test numberProp
+    }
+
+    /**
+     * Test the property 'booleanProp'
+     */
+    @Test
+    public void booleanPropTest() {
+        // TODO: test booleanProp
+    }
+
+    /**
+     * Test the property 'stringProp'
+     */
+    @Test
+    public void stringPropTest() {
+        // TODO: test stringProp
+    }
+
+    /**
+     * Test the property 'dateProp'
+     */
+    @Test
+    public void datePropTest() {
+        // TODO: test dateProp
+    }
+
+    /**
+     * Test the property 'datetimeProp'
+     */
+    @Test
+    public void datetimePropTest() {
+        // TODO: test datetimeProp
+    }
+
+    /**
+     * Test the property 'arrayNullableProp'
+     */
+    @Test
+    public void arrayNullablePropTest() {
+        // TODO: test arrayNullableProp
+    }
+
+    /**
+     * Test the property 'arrayAndItemsNullableProp'
+     */
+    @Test
+    public void arrayAndItemsNullablePropTest() {
+        // TODO: test arrayAndItemsNullableProp
+    }
+
+    /**
+     * Test the property 'arrayItemsNullable'
+     */
+    @Test
+    public void arrayItemsNullableTest() {
+        // TODO: test arrayItemsNullable
+    }
+
+    /**
+     * Test the property 'objectNullableProp'
+     */
+    @Test
+    public void objectNullablePropTest() {
+        // TODO: test objectNullableProp
+    }
+
+    /**
+     * Test the property 'objectAndItemsNullableProp'
+     */
+    @Test
+    public void objectAndItemsNullablePropTest() {
+        // TODO: test objectAndItemsNullableProp
+    }
+
+    /**
+     * Test the property 'objectItemsNullable'
+     */
+    @Test
+    public void objectItemsNullableTest() {
+        // TODO: test objectItemsNullable
+    }
+
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/ObjectWithDeprecatedFieldsTest.java

@@ -21,63 +21,56 @@ import com.fasterxml.jackson.annotation.JsonValue;
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
+import org.openapitools.client.model.DeprecatedObject;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
 
 /**
- * Model tests for TypeHolderDefault
+ * Model tests for ObjectWithDeprecatedFields
  */
-public class TypeHolderDefaultTest {
+public class ObjectWithDeprecatedFieldsTest {
-    private final TypeHolderDefault model = new TypeHolderDefault();
+    private final ObjectWithDeprecatedFields model = new ObjectWithDeprecatedFields();
 
     /**
-     * Model tests for TypeHolderDefault
+     * Model tests for ObjectWithDeprecatedFields
      */
     @Test
-    public void testTypeHolderDefault() {
+    public void testObjectWithDeprecatedFields() {
-        // TODO: test TypeHolderDefault
+        // TODO: test ObjectWithDeprecatedFields
     }
 
     /**
-     * Test the property 'stringItem'
+     * Test the property 'uuid'
      */
     @Test
-    public void stringItemTest() {
+    public void uuidTest() {
-        // TODO: test stringItem
+        // TODO: test uuid
     }
 
     /**
-     * Test the property 'numberItem'
+     * Test the property 'id'
      */
     @Test
-    public void numberItemTest() {
+    public void idTest() {
-        // TODO: test numberItem
+        // TODO: test id
     }
 
     /**
-     * Test the property 'integerItem'
+     * Test the property 'deprecatedRef'
      */
     @Test
-    public void integerItemTest() {
+    public void deprecatedRefTest() {
-        // TODO: test integerItem
+        // TODO: test deprecatedRef
     }
 
     /**
-     * Test the property 'boolItem'
+     * Test the property 'bars'
      */
     @Test
-    public void boolItemTest() {
+    public void barsTest() {
-        // TODO: test boolItem
+        // TODO: test bars
-    }
-
-    /**
-     * Test the property 'arrayItem'
-     */
-    @Test
-    public void arrayItemTest() {
-        // TODO: test arrayItem
     }
 
 }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/OuterEnumDefaultValueTest.java

@@ -0,0 +1,33 @@
+/*
+ * 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 org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for OuterEnumDefaultValue
+ */
+public class OuterEnumDefaultValueTest {
+    /**
+     * Model tests for OuterEnumDefaultValue
+     */
+    @Test
+    public void testOuterEnumDefaultValue() {
+        // TODO: test OuterEnumDefaultValue
+    }
+
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/OuterEnumIntegerDefaultValueTest.java

@@ -0,0 +1,33 @@
+/*
+ * 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 org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for OuterEnumIntegerDefaultValue
+ */
+public class OuterEnumIntegerDefaultValueTest {
+    /**
+     * Model tests for OuterEnumIntegerDefaultValue
+     */
+    @Test
+    public void testOuterEnumIntegerDefaultValue() {
+        // TODO: test OuterEnumIntegerDefaultValue
+    }
+
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/OuterEnumIntegerTest.java

@@ -0,0 +1,33 @@
+/*
+ * 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 org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for OuterEnumInteger
+ */
+public class OuterEnumIntegerTest {
+    /**
+     * Model tests for OuterEnumInteger
+     */
+    @Test
+    public void testOuterEnumInteger() {
+        // TODO: test OuterEnumInteger
+    }
+
+}

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/OuterObjectWithEnumPropertyTest.java

@@ -18,33 +18,32 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.annotation.JsonValue;
-import java.util.HashMap;
+import org.openapitools.client.model.OuterEnumInteger;
-import java.util.Map;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 
 
 /**
- * Model tests for AdditionalPropertiesAnyType
+ * Model tests for OuterObjectWithEnumProperty
  */
-public class AdditionalPropertiesAnyTypeTest {
+public class OuterObjectWithEnumPropertyTest {
-    private final AdditionalPropertiesAnyType model = new AdditionalPropertiesAnyType();
+    private final OuterObjectWithEnumProperty model = new OuterObjectWithEnumProperty();
 
     /**
-     * Model tests for AdditionalPropertiesAnyType
+     * Model tests for OuterObjectWithEnumProperty
      */
     @Test
-    public void testAdditionalPropertiesAnyType() {
+    public void testOuterObjectWithEnumProperty() {
-        // TODO: test AdditionalPropertiesAnyType
+        // TODO: test OuterObjectWithEnumProperty
     }
 
     /**
-     * Test the property 'name'
+     * Test the property 'value'
      */
     @Test
-    public void nameTest() {
+    public void valueTest() {
-        // TODO: test name
+        // TODO: test value
     }
 
 }

samples/client/petstore/java/apache-httpclient/src/test/java/org/openapitools/client/model/SingleRefTypeTest.java

@@ -0,0 +1,33 @@
+/*
+ * 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 org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+
+/**
+ * Model tests for SingleRefType
+ */
+public class SingleRefTypeTest {
+    /**
+     * Model tests for SingleRefType
+     */
+    @Test
+    public void testSingleRefType() {
+        // TODO: test SingleRefType
+    }
+
+}

samples/client/petstore/java/native-async/.openapi-generator/FILES

@@ -5,27 +5,21 @@ README.md
 api/openapi.yaml
 build.gradle
 build.sbt
-docs/AdditionalPropertiesAnyType.md
-docs/AdditionalPropertiesArray.md
-docs/AdditionalPropertiesBoolean.md
 docs/AdditionalPropertiesClass.md
-docs/AdditionalPropertiesInteger.md
+docs/AllOfWithSingleRef.md
-docs/AdditionalPropertiesNumber.md
-docs/AdditionalPropertiesObject.md
-docs/AdditionalPropertiesString.md
 docs/Animal.md
 docs/AnotherFakeApi.md
 docs/ArrayOfArrayOfNumberOnly.md
 docs/ArrayOfNumberOnly.md
 docs/ArrayTest.md
-docs/BigCat.md
-docs/BigCatAllOf.md
 docs/Capitalization.md
 docs/Cat.md
 docs/CatAllOf.md
 docs/Category.md
 docs/ClassModel.md
 docs/Client.md
+docs/DefaultApi.md
+docs/DeprecatedObject.md
 docs/Dog.md
 docs/DogAllOf.md
 docs/EnumArrays.md
@@ -34,8 +28,11 @@ docs/EnumTest.md
 docs/FakeApi.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
@@ -44,21 +41,25 @@ 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/Pet.md
 docs/PetApi.md
 docs/ReadOnlyFirst.md
+docs/SingleRefType.md
 docs/SpecialModelName.md
 docs/StoreApi.md
 docs/Tag.md
-docs/TypeHolderDefault.md
-docs/TypeHolderExample.md
 docs/User.md
 docs/UserApi.md
-docs/XmlItem.md
 git_push.sh
 gradle.properties
 gradle/wrapper/gradle-wrapper.jar
@@ -78,40 +79,37 @@ src/main/java/org/openapitools/client/RFC3339DateFormat.java
 src/main/java/org/openapitools/client/ServerConfiguration.java
 src/main/java/org/openapitools/client/ServerVariable.java
 src/main/java/org/openapitools/client/api/AnotherFakeApi.java
+src/main/java/org/openapitools/client/api/DefaultApi.java
 src/main/java/org/openapitools/client/api/FakeApi.java
 src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java
 src/main/java/org/openapitools/client/api/PetApi.java
 src/main/java/org/openapitools/client/api/StoreApi.java
 src/main/java/org/openapitools/client/api/UserApi.java
 src/main/java/org/openapitools/client/model/AbstractOpenApiSchema.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesAnyType.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesArray.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesBoolean.java
 src/main/java/org/openapitools/client/model/AdditionalPropertiesClass.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesInteger.java
+src/main/java/org/openapitools/client/model/AllOfWithSingleRef.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesNumber.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesObject.java
-src/main/java/org/openapitools/client/model/AdditionalPropertiesString.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/BigCat.java
-src/main/java/org/openapitools/client/model/BigCatAllOf.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/CatAllOf.java
 src/main/java/org/openapitools/client/model/Category.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/DogAllOf.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/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
@@ -120,15 +118,19 @@ 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/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/TypeHolderDefault.java
-src/main/java/org/openapitools/client/model/TypeHolderExample.java
 src/main/java/org/openapitools/client/model/User.java
-src/main/java/org/openapitools/client/model/XmlItem.java

samples/client/petstore/java/native-async/README.md

@@ -84,9 +84,9 @@ public class AnotherFakeApiExample {
         // Configure clients using the `defaultClient` object, such as
         // overriding the host and port, timeout, etc.
         AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            CompletableFuture<Client> result = apiInstance.call123testSpecialTags(body);
+            CompletableFuture<Client> result = apiInstance.call123testSpecialTags(client);
             System.out.println(result.get());
         } catch (ApiException e) {
             System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
@@ -108,8 +108,12 @@ Class | Method | HTTP request | Description
 ------------ | ------------- | ------------- | -------------
 *AnotherFakeApi* | [**call123testSpecialTags**](docs/AnotherFakeApi.md#call123testSpecialTags) | **PATCH** /another-fake/dummy | To test special tags
 *AnotherFakeApi* | [**call123testSpecialTagsWithHttpInfo**](docs/AnotherFakeApi.md#call123testSpecialTagsWithHttpInfo) | **PATCH** /another-fake/dummy | To test special tags
-*FakeApi* | [**createXmlItem**](docs/FakeApi.md#createXmlItem) | **POST** /fake/create_xml_item | creates an XmlItem
+*DefaultApi* | [**fooGet**](docs/DefaultApi.md#fooGet) | **GET** /foo | 
-*FakeApi* | [**createXmlItemWithHttpInfo**](docs/FakeApi.md#createXmlItemWithHttpInfo) | **POST** /fake/create_xml_item | creates an XmlItem
+*DefaultApi* | [**fooGetWithHttpInfo**](docs/DefaultApi.md#fooGetWithHttpInfo) | **GET** /foo | 
+*FakeApi* | [**fakeHealthGet**](docs/FakeApi.md#fakeHealthGet) | **GET** /fake/health | Health check endpoint
+*FakeApi* | [**fakeHealthGetWithHttpInfo**](docs/FakeApi.md#fakeHealthGetWithHttpInfo) | **GET** /fake/health | Health check endpoint
+*FakeApi* | [**fakeHttpSignatureTest**](docs/FakeApi.md#fakeHttpSignatureTest) | **GET** /fake/http-signature-test | test http signature authentication
+*FakeApi* | [**fakeHttpSignatureTestWithHttpInfo**](docs/FakeApi.md#fakeHttpSignatureTestWithHttpInfo) | **GET** /fake/http-signature-test | test http signature authentication
 *FakeApi* | [**fakeOuterBooleanSerialize**](docs/FakeApi.md#fakeOuterBooleanSerialize) | **POST** /fake/outer/boolean | 
 *FakeApi* | [**fakeOuterBooleanSerializeWithHttpInfo**](docs/FakeApi.md#fakeOuterBooleanSerializeWithHttpInfo) | **POST** /fake/outer/boolean | 
 *FakeApi* | [**fakeOuterCompositeSerialize**](docs/FakeApi.md#fakeOuterCompositeSerialize) | **POST** /fake/outer/composite | 
@@ -118,14 +122,18 @@ Class | Method | HTTP request | Description
 *FakeApi* | [**fakeOuterNumberSerializeWithHttpInfo**](docs/FakeApi.md#fakeOuterNumberSerializeWithHttpInfo) | **POST** /fake/outer/number | 
 *FakeApi* | [**fakeOuterStringSerialize**](docs/FakeApi.md#fakeOuterStringSerialize) | **POST** /fake/outer/string | 
 *FakeApi* | [**fakeOuterStringSerializeWithHttpInfo**](docs/FakeApi.md#fakeOuterStringSerializeWithHttpInfo) | **POST** /fake/outer/string | 
+*FakeApi* | [**fakePropertyEnumIntegerSerialize**](docs/FakeApi.md#fakePropertyEnumIntegerSerialize) | **POST** /fake/property/enum-int | 
+*FakeApi* | [**fakePropertyEnumIntegerSerializeWithHttpInfo**](docs/FakeApi.md#fakePropertyEnumIntegerSerializeWithHttpInfo) | **POST** /fake/property/enum-int | 
+*FakeApi* | [**testBodyWithBinary**](docs/FakeApi.md#testBodyWithBinary) | **PUT** /fake/body-with-binary | 
+*FakeApi* | [**testBodyWithBinaryWithHttpInfo**](docs/FakeApi.md#testBodyWithBinaryWithHttpInfo) | **PUT** /fake/body-with-binary | 
 *FakeApi* | [**testBodyWithFileSchema**](docs/FakeApi.md#testBodyWithFileSchema) | **PUT** /fake/body-with-file-schema | 
 *FakeApi* | [**testBodyWithFileSchemaWithHttpInfo**](docs/FakeApi.md#testBodyWithFileSchemaWithHttpInfo) | **PUT** /fake/body-with-file-schema | 
 *FakeApi* | [**testBodyWithQueryParams**](docs/FakeApi.md#testBodyWithQueryParams) | **PUT** /fake/body-with-query-params | 
 *FakeApi* | [**testBodyWithQueryParamsWithHttpInfo**](docs/FakeApi.md#testBodyWithQueryParamsWithHttpInfo) | **PUT** /fake/body-with-query-params | 
 *FakeApi* | [**testClientModel**](docs/FakeApi.md#testClientModel) | **PATCH** /fake | To test \&quot;client\&quot; model
 *FakeApi* | [**testClientModelWithHttpInfo**](docs/FakeApi.md#testClientModelWithHttpInfo) | **PATCH** /fake | To test \&quot;client\&quot; model
-*FakeApi* | [**testEndpointParameters**](docs/FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+*FakeApi* | [**testEndpointParameters**](docs/FakeApi.md#testEndpointParameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
-*FakeApi* | [**testEndpointParametersWithHttpInfo**](docs/FakeApi.md#testEndpointParametersWithHttpInfo) | **POST** /fake | Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+*FakeApi* | [**testEndpointParametersWithHttpInfo**](docs/FakeApi.md#testEndpointParametersWithHttpInfo) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 *FakeApi* | [**testEnumParameters**](docs/FakeApi.md#testEnumParameters) | **GET** /fake | To test enum parameters
 *FakeApi* | [**testEnumParametersWithHttpInfo**](docs/FakeApi.md#testEnumParametersWithHttpInfo) | **GET** /fake | To test enum parameters
 *FakeApi* | [**testGroupParameters**](docs/FakeApi.md#testGroupParameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional)
@@ -184,34 +192,30 @@ Class | Method | HTTP request | Description
 
 ## Documentation for Models
 
- - [AdditionalPropertiesAnyType](docs/AdditionalPropertiesAnyType.md)
- - [AdditionalPropertiesArray](docs/AdditionalPropertiesArray.md)
- - [AdditionalPropertiesBoolean](docs/AdditionalPropertiesBoolean.md)
  - [AdditionalPropertiesClass](docs/AdditionalPropertiesClass.md)
- - [AdditionalPropertiesInteger](docs/AdditionalPropertiesInteger.md)
+ - [AllOfWithSingleRef](docs/AllOfWithSingleRef.md)
- - [AdditionalPropertiesNumber](docs/AdditionalPropertiesNumber.md)
- - [AdditionalPropertiesObject](docs/AdditionalPropertiesObject.md)
- - [AdditionalPropertiesString](docs/AdditionalPropertiesString.md)
  - [Animal](docs/Animal.md)
  - [ArrayOfArrayOfNumberOnly](docs/ArrayOfArrayOfNumberOnly.md)
  - [ArrayOfNumberOnly](docs/ArrayOfNumberOnly.md)
  - [ArrayTest](docs/ArrayTest.md)
- - [BigCat](docs/BigCat.md)
- - [BigCatAllOf](docs/BigCatAllOf.md)
  - [Capitalization](docs/Capitalization.md)
  - [Cat](docs/Cat.md)
  - [CatAllOf](docs/CatAllOf.md)
  - [Category](docs/Category.md)
  - [ClassModel](docs/ClassModel.md)
  - [Client](docs/Client.md)
+ - [DeprecatedObject](docs/DeprecatedObject.md)
  - [Dog](docs/Dog.md)
  - [DogAllOf](docs/DogAllOf.md)
  - [EnumArrays](docs/EnumArrays.md)
  - [EnumClass](docs/EnumClass.md)
  - [EnumTest](docs/EnumTest.md)
  - [FileSchemaTestClass](docs/FileSchemaTestClass.md)
+ - [Foo](docs/Foo.md)
+ - [FooGetDefaultResponse](docs/FooGetDefaultResponse.md)
  - [FormatTest](docs/FormatTest.md)
  - [HasOnlyReadOnly](docs/HasOnlyReadOnly.md)
+ - [HealthCheckResult](docs/HealthCheckResult.md)
  - [MapTest](docs/MapTest.md)
  - [MixedPropertiesAndAdditionalPropertiesClass](docs/MixedPropertiesAndAdditionalPropertiesClass.md)
  - [Model200Response](docs/Model200Response.md)
@@ -220,18 +224,22 @@ Class | Method | HTTP request | Description
  - [ModelList](docs/ModelList.md)
  - [ModelReturn](docs/ModelReturn.md)
  - [Name](docs/Name.md)
+ - [NullableClass](docs/NullableClass.md)
  - [NumberOnly](docs/NumberOnly.md)
+ - [ObjectWithDeprecatedFields](docs/ObjectWithDeprecatedFields.md)
  - [Order](docs/Order.md)
  - [OuterComposite](docs/OuterComposite.md)
  - [OuterEnum](docs/OuterEnum.md)
+ - [OuterEnumDefaultValue](docs/OuterEnumDefaultValue.md)
+ - [OuterEnumInteger](docs/OuterEnumInteger.md)
+ - [OuterEnumIntegerDefaultValue](docs/OuterEnumIntegerDefaultValue.md)
+ - [OuterObjectWithEnumProperty](docs/OuterObjectWithEnumProperty.md)
  - [Pet](docs/Pet.md)
  - [ReadOnlyFirst](docs/ReadOnlyFirst.md)
+ - [SingleRefType](docs/SingleRefType.md)
  - [SpecialModelName](docs/SpecialModelName.md)
  - [Tag](docs/Tag.md)
- - [TypeHolderDefault](docs/TypeHolderDefault.md)
- - [TypeHolderExample](docs/TypeHolderExample.md)
  - [User](docs/User.md)
- - [XmlItem](docs/XmlItem.md)
 
 
 ## Documentation for Authorization
@@ -251,9 +259,19 @@ Authentication schemes defined for the API:
 - **API key parameter name**: api_key_query
 - **Location**: URL query string
 
+### bearer_test
+
+
+- **Type**: HTTP basic authentication
+
 ### http_basic_test
 
 
+- **Type**: HTTP basic authentication
+
+### http_signature_test
+
+
 - **Type**: HTTP basic authentication
 
 ### petstore_auth

samples/client/petstore/java/native-async/docs/AdditionalPropertiesClass.md

@@ -7,17 +7,8 @@
 
 | Name | Type | Description | Notes |
 |------------ | ------------- | ------------- | -------------|
-|**mapString** | **Map<String, String>** |  |  [optional] |
+|**mapProperty** | **Map<String, String>** |  |  [optional] |
-|**mapNumber** | **Map<String, BigDecimal>** |  |  [optional] |
+|**mapOfMapProperty** | **Map<String, Map<String, String>>** |  |  [optional] |
-|**mapInteger** | **Map<String, Integer>** |  |  [optional] |
-|**mapBoolean** | **Map<String, Boolean>** |  |  [optional] |
-|**mapArrayInteger** | **Map<String, List<Integer>>** |  |  [optional] |
-|**mapArrayAnytype** | **Map<String, List<Object>>** |  |  [optional] |
-|**mapMapString** | **Map<String, Map<String, String>>** |  |  [optional] |
-|**mapMapAnytype** | **Map<String, Map<String, Object>>** |  |  [optional] |
-|**anytype1** | **Object** |  |  [optional] |
-|**anytype2** | **Object** |  |  [optional] |
-|**anytype3** | **Object** |  |  [optional] |
 
 
 

samples/client/petstore/java/native-async/docs/AllOfWithSingleRef.md

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

samples/client/petstore/java/native-async/docs/AnotherFakeApi.md

@@ -11,7 +11,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## call123testSpecialTags
 
-> CompletableFuture<Client> call123testSpecialTags(body)
+> CompletableFuture<Client> call123testSpecialTags(client)
 
 To test special tags
 
@@ -34,9 +34,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            CompletableFuture<Client> result = apiInstance.call123testSpecialTags(body);
+            CompletableFuture<Client> result = apiInstance.call123testSpecialTags(client);
             System.out.println(result.get());
         } catch (ApiException e) {
             System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
@@ -54,7 +54,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 
@@ -77,7 +77,7 @@ No authorization required
 
 ## call123testSpecialTagsWithHttpInfo
 
-> CompletableFuture<ApiResponse<Client>> call123testSpecialTags call123testSpecialTagsWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Client>> call123testSpecialTags call123testSpecialTagsWithHttpInfo(client)
 
 To test special tags
 
@@ -101,9 +101,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         AnotherFakeApi apiInstance = new AnotherFakeApi(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            CompletableFuture<ApiResponse<Client>> response = apiInstance.call123testSpecialTagsWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Client>> response = apiInstance.call123testSpecialTagsWithHttpInfo(client);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
             System.out.println("Response body: " + response.get().getData());
@@ -130,7 +130,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 

samples/client/petstore/java/native-async/docs/DefaultApi.md

@@ -0,0 +1,141 @@
+# DefaultApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|------------- | ------------- | -------------|
+| [**fooGet**](DefaultApi.md#fooGet) | **GET** /foo |  |
+| [**fooGetWithHttpInfo**](DefaultApi.md#fooGetWithHttpInfo) | **GET** /foo |  |
+
+
+
+## fooGet
+
+> CompletableFuture<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;
+import java.util.concurrent.CompletableFuture;
+
+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 {
+            CompletableFuture<FooGetDefaultResponse> result = apiInstance.fooGet();
+            System.out.println(result.get());
+        } 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
+
+CompletableFuture<[**FooGetDefaultResponse**](FooGetDefaultResponse.md)>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | response |  -  |
+
+## fooGetWithHttpInfo
+
+> CompletableFuture<ApiResponse<FooGetDefaultResponse>> fooGet fooGetWithHttpInfo()
+
+
+
+### Example
+
+```java
+// Import classes:
+import org.openapitools.client.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Configuration;
+import org.openapitools.client.models.*;
+import org.openapitools.client.api.DefaultApi;
+import java.util.concurrent.CompletableFuture;
+
+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 {
+            CompletableFuture<ApiResponse<FooGetDefaultResponse>> response = apiInstance.fooGetWithHttpInfo();
+            System.out.println("Status code: " + response.get().getStatusCode());
+            System.out.println("Response headers: " + response.get().getHeaders());
+            System.out.println("Response body: " + response.get().getData());
+        } catch (InterruptedException | ExecutionException e) {
+            ApiException apiException = (ApiException)e.getCause();
+            System.err.println("Exception when calling DefaultApi#fooGet");
+            System.err.println("Status code: " + apiException.getCode());
+            System.err.println("Response headers: " + apiException.getResponseHeaders());
+            System.err.println("Reason: " + apiException.getResponseBody());
+            e.printStackTrace();
+        } catch (ApiException e) {
+            System.err.println("Exception when calling DefaultApi#fooGet");
+            System.err.println("Status code: " + e.getCode());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            System.err.println("Reason: " + e.getResponseBody());
+            e.printStackTrace();
+        }
+    }
+}
+```
+
+### Parameters
+
+This endpoint does not need any parameter.
+
+### Return type
+
+CompletableFuture<ApiResponse<[**FooGetDefaultResponse**](FooGetDefaultResponse.md)>>
+
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | response |  -  |
+

samples/client/petstore/java/native-async/docs/DeprecatedObject.md

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

samples/client/petstore/java/native-async/docs/EnumTest.md

@@ -12,6 +12,9 @@
 |**enumInteger** | [**EnumIntegerEnum**](#EnumIntegerEnum) |  |  [optional] |
 |**enumNumber** | [**EnumNumberEnum**](#EnumNumberEnum) |  |  [optional] |
 |**outerEnum** | **OuterEnum** |  |  [optional] |
+|**outerEnumInteger** | **OuterEnumInteger** |  |  [optional] |
+|**outerEnumDefaultValue** | **OuterEnumDefaultValue** |  |  [optional] |
+|**outerEnumIntegerDefaultValue** | **OuterEnumIntegerDefaultValue** |  |  [optional] |
 
 
 

samples/client/petstore/java/native-async/docs/FakeClassnameTags123Api.md

@@ -11,7 +11,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## testClassname
 
-> CompletableFuture<Client> testClassname(body)
+> CompletableFuture<Client> testClassname(client)
 
 To test class name in snake case
 
@@ -41,9 +41,9 @@ public class Example {
         //api_key_query.setApiKeyPrefix("Token");
 
         FakeClassnameTags123Api apiInstance = new FakeClassnameTags123Api(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            CompletableFuture<Client> result = apiInstance.testClassname(body);
+            CompletableFuture<Client> result = apiInstance.testClassname(client);
             System.out.println(result.get());
         } catch (ApiException e) {
             System.err.println("Exception when calling FakeClassnameTags123Api#testClassname");
@@ -61,7 +61,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 
@@ -84,7 +84,7 @@ CompletableFuture<[**Client**](Client.md)>
 
 ## testClassnameWithHttpInfo
 
-> CompletableFuture<ApiResponse<Client>> testClassname testClassnameWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Client>> testClassname testClassnameWithHttpInfo(client)
 
 To test class name in snake case
 
@@ -115,9 +115,9 @@ public class Example {
         //api_key_query.setApiKeyPrefix("Token");
 
         FakeClassnameTags123Api apiInstance = new FakeClassnameTags123Api(defaultClient);
-        Client body = new Client(); // Client | client model
+        Client client = new Client(); // Client | client model
         try {
-            CompletableFuture<ApiResponse<Client>> response = apiInstance.testClassnameWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Client>> response = apiInstance.testClassnameWithHttpInfo(client);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
             System.out.println("Response body: " + response.get().getData());
@@ -144,7 +144,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Client**](Client.md)| client model | |
+| **client** | [**Client**](Client.md)| client model | |
 
 ### Return type
 

samples/client/petstore/java/native-async/docs/Foo.md

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

samples/client/petstore/java/native-async/docs/FooGetDefaultResponse.md

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

samples/client/petstore/java/native-async/docs/FormatTest.md

@@ -13,6 +13,7 @@
 |**number** | **BigDecimal** |  |  |
 |**_float** | **Float** |  |  [optional] |
 |**_double** | **Double** |  |  [optional] |
+|**decimal** | **BigDecimal** |  |  [optional] |
 |**string** | **String** |  |  [optional] |
 |**_byte** | **byte[]** |  |  |
 |**binary** | **File** |  |  [optional] |
@@ -20,7 +21,8 @@
 |**dateTime** | **OffsetDateTime** |  |  [optional] |
 |**uuid** | **UUID** |  |  [optional] |
 |**password** | **String** |  |  |
-|**bigDecimal** | **BigDecimal** |  |  [optional] |
+|**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/native-async/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/native-async/docs/NullableClass.md

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

samples/client/petstore/java/native-async/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/native-async/docs/OuterEnumDefaultValue.md

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

samples/client/petstore/java/native-async/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/native-async/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/native-async/docs/OuterObjectWithEnumProperty.md

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

samples/client/petstore/java/native-async/docs/PetApi.md

@@ -27,10 +27,12 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## addPet
 
-> CompletableFuture<Void> addPet(body)
+> CompletableFuture<Void> addPet(pet)
 
 Add a new pet to the store
 
+
+
 ### Example
 
 ```java
@@ -53,9 +55,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            CompletableFuture<Void> result = apiInstance.addPet(body);
+            CompletableFuture<Void> result = apiInstance.addPet(pet);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#addPet");
             System.err.println("Status code: " + e.getCode());
@@ -72,7 +74,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -91,15 +93,17 @@ CompletableFuture<void> (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 ## addPetWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> addPet addPetWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Void>> addPet addPetWithHttpInfo(pet)
 
 Add a new pet to the store
 
+
+
 ### Example
 
 ```java
@@ -123,9 +127,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.addPetWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.addPetWithHttpInfo(pet);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -151,7 +155,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -170,7 +174,7 @@ CompletableFuture<ApiResponse<Void>>
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -180,6 +184,8 @@ CompletableFuture<ApiResponse<Void>>
 
 Deletes a pet
 
+
+
 ### Example
 
 ```java
@@ -242,7 +248,7 @@ CompletableFuture<void> (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **400** | Invalid pet value |  -  |
 
 ## deletePetWithHttpInfo
@@ -251,6 +257,8 @@ CompletableFuture<void> (empty response body)
 
 Deletes a pet
 
+
+
 ### Example
 
 ```java
@@ -323,7 +331,7 @@ CompletableFuture<ApiResponse<Void>>
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-| **200** | successful operation |  -  |
+| **200** | Successful operation |  -  |
 | **400** | Invalid pet value |  -  |
 
 
@@ -800,10 +808,12 @@ CompletableFuture<ApiResponse<[**Pet**](Pet.md)>>
 
 ## updatePet
 
-> CompletableFuture<Void> updatePet(body)
+> CompletableFuture<Void> updatePet(pet)
 
 Update an existing pet
 
+
+
 ### Example
 
 ```java
@@ -826,9 +836,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            CompletableFuture<Void> result = apiInstance.updatePet(body);
+            CompletableFuture<Void> result = apiInstance.updatePet(pet);
         } catch (ApiException e) {
             System.err.println("Exception when calling PetApi#updatePet");
             System.err.println("Status code: " + e.getCode());
@@ -845,7 +855,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -864,17 +874,19 @@ CompletableFuture<void> (empty response body)
 ### 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 |  -  |
 
 ## updatePetWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> updatePet updatePetWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Void>> updatePet updatePetWithHttpInfo(pet)
 
 Update an existing pet
 
+
+
 ### Example
 
 ```java
@@ -898,9 +910,9 @@ public class Example {
         petstore_auth.setAccessToken("YOUR ACCESS TOKEN");
 
         PetApi apiInstance = new PetApi(defaultClient);
-        Pet body = new Pet(); // Pet | Pet object that needs to be added to the store
+        Pet pet = new Pet(); // Pet | Pet object that needs to be added to the store
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.updatePetWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.updatePetWithHttpInfo(pet);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -926,7 +938,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
+| **pet** | [**Pet**](Pet.md)| Pet object that needs to be added to the store | |
 
 ### Return type
 
@@ -945,7 +957,7 @@ CompletableFuture<ApiResponse<Void>>
 ### 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 |  -  |
@@ -957,6 +969,8 @@ CompletableFuture<ApiResponse<Void>>
 
 Updates a pet in the store with form data
 
+
+
 ### Example
 
 ```java
@@ -1021,6 +1035,7 @@ CompletableFuture<void> (empty response body)
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 ## updatePetWithFormWithHttpInfo
@@ -1029,6 +1044,8 @@ CompletableFuture<void> (empty response body)
 
 Updates a pet in the store with form data
 
+
+
 ### Example
 
 ```java
@@ -1103,6 +1120,7 @@ CompletableFuture<ApiResponse<Void>>
 ### HTTP response details
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
+| **200** | Successful operation |  -  |
 | **405** | Invalid input |  -  |
 
 
@@ -1112,6 +1130,8 @@ CompletableFuture<ApiResponse<Void>>
 
 uploads an image
 
+
+
 ### Example
 
 ```java
@@ -1185,6 +1205,8 @@ CompletableFuture<[**ModelApiResponse**](ModelApiResponse.md)>
 
 uploads an image
 
+
+
 ### Example
 
 ```java
@@ -1269,6 +1291,8 @@ CompletableFuture<ApiResponse<[**ModelApiResponse**](ModelApiResponse.md)>>
 
 uploads an image (required)
 
+
+
 ### Example
 
 ```java
@@ -1342,6 +1366,8 @@ CompletableFuture<[**ModelApiResponse**](ModelApiResponse.md)>
 
 uploads an image (required)
 
+
+
 ### Example
 
 ```java

samples/client/petstore/java/native-async/docs/SingleRefType.md

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

samples/client/petstore/java/native-async/docs/StoreApi.md

@@ -456,10 +456,12 @@ No authorization required
 
 ## placeOrder
 
-> CompletableFuture<Order> placeOrder(body)
+> CompletableFuture<Order> placeOrder(order)
 
 Place an order for a pet
 
+
+
 ### Example
 
 ```java
@@ -477,9 +479,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
-        Order body = new Order(); // Order | order placed for purchasing the pet
+        Order order = new Order(); // Order | order placed for purchasing the pet
         try {
-            CompletableFuture<Order> result = apiInstance.placeOrder(body);
+            CompletableFuture<Order> result = apiInstance.placeOrder(order);
             System.out.println(result.get());
         } catch (ApiException e) {
             System.err.println("Exception when calling StoreApi#placeOrder");
@@ -497,7 +499,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Order**](Order.md)| order placed for purchasing the pet | |
+| **order** | [**Order**](Order.md)| order placed for purchasing the pet | |
 
 ### Return type
 
@@ -510,7 +512,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: application/xml, application/json
 
 ### HTTP response details
@@ -521,10 +523,12 @@ No authorization required
 
 ## placeOrderWithHttpInfo
 
-> CompletableFuture<ApiResponse<Order>> placeOrder placeOrderWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Order>> placeOrder placeOrderWithHttpInfo(order)
 
 Place an order for a pet
 
+
+
 ### Example
 
 ```java
@@ -543,9 +547,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         StoreApi apiInstance = new StoreApi(defaultClient);
-        Order body = new Order(); // Order | order placed for purchasing the pet
+        Order order = new Order(); // Order | order placed for purchasing the pet
         try {
-            CompletableFuture<ApiResponse<Order>> response = apiInstance.placeOrderWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Order>> response = apiInstance.placeOrderWithHttpInfo(order);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
             System.out.println("Response body: " + response.get().getData());
@@ -572,7 +576,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**Order**](Order.md)| order placed for purchasing the pet | |
+| **order** | [**Order**](Order.md)| order placed for purchasing the pet | |
 
 ### Return type
 
@@ -585,7 +589,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: application/xml, application/json
 
 ### HTTP response details

samples/client/petstore/java/native-async/docs/UserApi.md

@@ -25,7 +25,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 
 ## createUser
 
-> CompletableFuture<Void> createUser(body)
+> CompletableFuture<Void> createUser(user)
 
 Create user
 
@@ -48,9 +48,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        User body = new User(); // User | Created user object
+        User user = new User(); // User | Created user object
         try {
-            CompletableFuture<Void> result = apiInstance.createUser(body);
+            CompletableFuture<Void> result = apiInstance.createUser(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUser");
             System.err.println("Status code: " + e.getCode());
@@ -67,7 +67,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**User**](User.md)| Created user object | |
+| **user** | [**User**](User.md)| Created user object | |
 
 ### Return type
 
@@ -80,7 +80,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -90,7 +90,7 @@ No authorization required
 
 ## createUserWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> createUser createUserWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Void>> createUser createUserWithHttpInfo(user)
 
 Create user
 
@@ -114,9 +114,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        User body = new User(); // User | Created user object
+        User user = new User(); // User | Created user object
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUserWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUserWithHttpInfo(user);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -142,7 +142,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**User**](User.md)| Created user object | |
+| **user** | [**User**](User.md)| Created user object | |
 
 ### Return type
 
@@ -155,7 +155,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -166,10 +166,12 @@ No authorization required
 
 ## createUsersWithArrayInput
 
-> CompletableFuture<Void> createUsersWithArrayInput(body)
+> CompletableFuture<Void> createUsersWithArrayInput(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -187,9 +189,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            CompletableFuture<Void> result = apiInstance.createUsersWithArrayInput(body);
+            CompletableFuture<Void> result = apiInstance.createUsersWithArrayInput(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUsersWithArrayInput");
             System.err.println("Status code: " + e.getCode());
@@ -206,7 +208,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -219,7 +221,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -229,10 +231,12 @@ No authorization required
 
 ## createUsersWithArrayInputWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> createUsersWithArrayInput createUsersWithArrayInputWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Void>> createUsersWithArrayInput createUsersWithArrayInputWithHttpInfo(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -251,9 +255,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUsersWithArrayInputWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUsersWithArrayInputWithHttpInfo(user);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -279,7 +283,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -292,7 +296,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -303,10 +307,12 @@ No authorization required
 
 ## createUsersWithListInput
 
-> CompletableFuture<Void> createUsersWithListInput(body)
+> CompletableFuture<Void> createUsersWithListInput(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -324,9 +330,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            CompletableFuture<Void> result = apiInstance.createUsersWithListInput(body);
+            CompletableFuture<Void> result = apiInstance.createUsersWithListInput(user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#createUsersWithListInput");
             System.err.println("Status code: " + e.getCode());
@@ -343,7 +349,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -356,7 +362,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -366,10 +372,12 @@ No authorization required
 
 ## createUsersWithListInputWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> createUsersWithListInput createUsersWithListInputWithHttpInfo(body)
+> CompletableFuture<ApiResponse<Void>> createUsersWithListInput createUsersWithListInputWithHttpInfo(user)
 
 Creates list of users with given input array
 
+
+
 ### Example
 
 ```java
@@ -388,9 +396,9 @@ public class Example {
         defaultClient.setBasePath("http://petstore.swagger.io:80/v2");
 
         UserApi apiInstance = new UserApi(defaultClient);
-        List<User> body = Arrays.asList(); // List<User> | List of user object
+        List<User> user = Arrays.asList(); // List<User> | List of user object
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUsersWithListInputWithHttpInfo(body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.createUsersWithListInputWithHttpInfo(user);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -416,7 +424,7 @@ public class Example {
 
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
-| **body** | [**List&lt;User&gt;**](User.md)| List of user object | |
+| **user** | [**List&lt;User&gt;**](User.md)| List of user object | |
 
 ### Return type
 
@@ -429,7 +437,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -587,6 +595,8 @@ No authorization required
 
 Get user by user name
 
+
+
 ### Example
 
 ```java
@@ -653,6 +663,8 @@ No authorization required
 
 Get user by user name
 
+
+
 ### Example
 
 ```java
@@ -730,6 +742,8 @@ No authorization required
 
 Logs user into the system
 
+
+
 ### Example
 
 ```java
@@ -797,6 +811,8 @@ No authorization required
 
 Logs user into the system
 
+
+
 ### Example
 
 ```java
@@ -875,6 +891,8 @@ No authorization required
 
 Logs out current logged in user session
 
+
+
 ### Example
 
 ```java
@@ -934,6 +952,8 @@ No authorization required
 
 Logs out current logged in user session
 
+
+
 ### Example
 
 ```java
@@ -1000,7 +1020,7 @@ No authorization required
 
 ## updateUser
 
-> CompletableFuture<Void> updateUser(username, body)
+> CompletableFuture<Void> updateUser(username, user)
 
 Updated user
 
@@ -1024,9 +1044,9 @@ public class Example {
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | name that need to be deleted
-        User body = new User(); // User | Updated user object
+        User user = new User(); // User | Updated user object
         try {
-            CompletableFuture<Void> result = apiInstance.updateUser(username, body);
+            CompletableFuture<Void> result = apiInstance.updateUser(username, user);
         } catch (ApiException e) {
             System.err.println("Exception when calling UserApi#updateUser");
             System.err.println("Status code: " + e.getCode());
@@ -1044,7 +1064,7 @@ public class Example {
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
 | **username** | **String**| name that need to be deleted | |
-| **body** | [**User**](User.md)| Updated user object | |
+| **user** | [**User**](User.md)| Updated user object | |
 
 ### Return type
 
@@ -1057,7 +1077,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details
@@ -1068,7 +1088,7 @@ No authorization required
 
 ## updateUserWithHttpInfo
 
-> CompletableFuture<ApiResponse<Void>> updateUser updateUserWithHttpInfo(username, body)
+> CompletableFuture<ApiResponse<Void>> updateUser updateUserWithHttpInfo(username, user)
 
 Updated user
 
@@ -1093,9 +1113,9 @@ public class Example {
 
         UserApi apiInstance = new UserApi(defaultClient);
         String username = "username_example"; // String | name that need to be deleted
-        User body = new User(); // User | Updated user object
+        User user = new User(); // User | Updated user object
         try {
-            CompletableFuture<ApiResponse<Void>> response = apiInstance.updateUserWithHttpInfo(username, body);
+            CompletableFuture<ApiResponse<Void>> response = apiInstance.updateUserWithHttpInfo(username, user);
             System.out.println("Status code: " + response.get().getStatusCode());
             System.out.println("Response headers: " + response.get().getHeaders());
         } catch (InterruptedException | ExecutionException e) {
@@ -1122,7 +1142,7 @@ public class Example {
 | Name | Type | Description  | Notes |
 |------------- | ------------- | ------------- | -------------|
 | **username** | **String**| name that need to be deleted | |
-| **body** | [**User**](User.md)| Updated user object | |
+| **user** | [**User**](User.md)| Updated user object | |
 
 ### Return type
 
@@ -1135,7 +1155,7 @@ No authorization required
 
 ### HTTP request headers
 
-- **Content-Type**: Not defined
+- **Content-Type**: application/json
 - **Accept**: Not defined
 
 ### HTTP response details

samples/client/petstore/java/native-async/src/main/java/org/openapitools/client/api/AnotherFakeApi.java

@@ -78,13 +78,13 @@ public class AnotherFakeApi {
   /**
    * To test special tags
    * To test special tags and operation ID starting with number
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture<Client>
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Client> call123testSpecialTags(Client body) throws ApiException {
+  public CompletableFuture<Client> call123testSpecialTags(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = call123testSpecialTagsRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = call123testSpecialTagsRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -109,13 +109,13 @@ public class AnotherFakeApi {
   /**
    * To test special tags
    * To test special tags and operation ID starting with number
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Client&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Client>> call123testSpecialTagsWithHttpInfo(Client body) throws ApiException {
+  public CompletableFuture<ApiResponse<Client>> call123testSpecialTagsWithHttpInfo(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = call123testSpecialTagsRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = call123testSpecialTagsRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -144,10 +144,10 @@ public class AnotherFakeApi {
     }
   }
 
-  private HttpRequest.Builder call123testSpecialTagsRequestBuilder(Client body) throws ApiException {
+  private HttpRequest.Builder call123testSpecialTagsRequestBuilder(Client client) throws ApiException {
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling call123testSpecialTags");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling call123testSpecialTags");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
@@ -160,7 +160,7 @@ public class AnotherFakeApi {
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(client);
       localVarRequestBuilder.method("PATCH", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);

samples/client/petstore/java/native-async/src/main/java/org/openapitools/client/api/DefaultApi.java

@@ -0,0 +1,164 @@
+/*
+ * 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.ApiClient;
+import org.openapitools.client.ApiException;
+import org.openapitools.client.ApiResponse;
+import org.openapitools.client.Pair;
+
+import org.openapitools.client.model.FooGetDefaultResponse;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.time.Duration;
+
+import java.util.ArrayList;
+import java.util.StringJoiner;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Consumer;
+
+import java.util.concurrent.CompletableFuture;
+
+@javax.annotation.processing.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+public class DefaultApi {
+  private final HttpClient memberVarHttpClient;
+  private final ObjectMapper memberVarObjectMapper;
+  private final String memberVarBaseUri;
+  private final Consumer<HttpRequest.Builder> memberVarInterceptor;
+  private final Duration memberVarReadTimeout;
+  private final Consumer<HttpResponse<InputStream>> memberVarResponseInterceptor;
+  private final Consumer<HttpResponse<String>> memberVarAsyncResponseInterceptor;
+
+  public DefaultApi() {
+    this(new ApiClient());
+  }
+
+  public DefaultApi(ApiClient apiClient) {
+    memberVarHttpClient = apiClient.getHttpClient();
+    memberVarObjectMapper = apiClient.getObjectMapper();
+    memberVarBaseUri = apiClient.getBaseUri();
+    memberVarInterceptor = apiClient.getRequestInterceptor();
+    memberVarReadTimeout = apiClient.getReadTimeout();
+    memberVarResponseInterceptor = apiClient.getResponseInterceptor();
+    memberVarAsyncResponseInterceptor = apiClient.getAsyncResponseInterceptor();
+  }
+
+  private ApiException getApiException(String operationId, HttpResponse<String> response) {
+    String message = formatExceptionMessage(operationId, response.statusCode(), response.body());
+    return new ApiException(response.statusCode(), message, response.headers(), response.body());
+  }
+
+  private String formatExceptionMessage(String operationId, int statusCode, String body) {
+    if (body == null || body.isEmpty()) {
+      body = "[no body]";
+    }
+    return operationId + " call failed with: " + statusCode + " - " + body;
+  }
+
+  /**
+   * 
+   * 
+   * @return CompletableFuture&lt;FooGetDefaultResponse&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<FooGetDefaultResponse> fooGet() throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = fooGetRequestBuilder();
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("fooGet", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<FooGetDefaultResponse>() {})
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+      });
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  /**
+   * 
+   * 
+   * @return CompletableFuture&lt;ApiResponse&lt;FooGetDefaultResponse&gt;&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<ApiResponse<FooGetDefaultResponse>> fooGetWithHttpInfo() throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = fooGetRequestBuilder();
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (memberVarAsyncResponseInterceptor != null) {
+              memberVarAsyncResponseInterceptor.accept(localVarResponse);
+            }
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("fooGet", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  new ApiResponse<FooGetDefaultResponse>(
+                      localVarResponse.statusCode(),
+                      localVarResponse.headers().map(),
+                      responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<FooGetDefaultResponse>() {}))
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+        }
+      );
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  private HttpRequest.Builder fooGetRequestBuilder() throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/foo";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Accept", "application/json");
+
+    localVarRequestBuilder.method("GET", HttpRequest.BodyPublishers.noBody());
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+}

samples/client/petstore/java/native-async/src/main/java/org/openapitools/client/api/FakeApi.java

@@ -19,13 +19,16 @@ import org.openapitools.client.Pair;
 
 import java.math.BigDecimal;
 import org.openapitools.client.model.Client;
+import org.openapitools.client.model.EnumClass;
 import java.io.File;
 import org.openapitools.client.model.FileSchemaTestClass;
+import org.openapitools.client.model.HealthCheckResult;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import org.openapitools.client.model.OuterComposite;
+import org.openapitools.client.model.OuterObjectWithEnumProperty;
+import org.openapitools.client.model.Pet;
 import org.openapitools.client.model.User;
-import org.openapitools.client.model.XmlItem;
 
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -84,20 +87,108 @@ public class FakeApi {
   }
 
   /**
-   * creates an XmlItem
+   * Health check endpoint
-   * this route creates an XmlItem
+   * 
-   * @param xmlItem XmlItem Body (required)
+   * @return CompletableFuture<HealthCheckResult>
-   * @return CompletableFuture<Void>
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> createXmlItem(XmlItem xmlItem) throws ApiException {
+  public CompletableFuture<HealthCheckResult> fakeHealthGet() throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = createXmlItemRequestBuilder(xmlItem);
+      HttpRequest.Builder localVarRequestBuilder = fakeHealthGetRequestBuilder();
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
             if (localVarResponse.statusCode()/ 100 != 2) {
-              return CompletableFuture.failedFuture(getApiException("createXmlItem", localVarResponse));
+              return CompletableFuture.failedFuture(getApiException("fakeHealthGet", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<HealthCheckResult>() {})
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+      });
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  /**
+   * Health check endpoint
+   * 
+   * @return CompletableFuture&lt;ApiResponse&lt;HealthCheckResult&gt;&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<ApiResponse<HealthCheckResult>> fakeHealthGetWithHttpInfo() throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = fakeHealthGetRequestBuilder();
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (memberVarAsyncResponseInterceptor != null) {
+              memberVarAsyncResponseInterceptor.accept(localVarResponse);
+            }
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("fakeHealthGet", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  new ApiResponse<HealthCheckResult>(
+                      localVarResponse.statusCode(),
+                      localVarResponse.headers().map(),
+                      responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<HealthCheckResult>() {}))
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+        }
+      );
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  private HttpRequest.Builder fakeHealthGetRequestBuilder() throws ApiException {
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/fake/health";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Accept", "application/json");
+
+    localVarRequestBuilder.method("GET", HttpRequest.BodyPublishers.noBody());
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+  /**
+   * test http signature authentication
+   * 
+   * @param pet Pet object that needs to be added to the store (required)
+   * @param query1 query parameter (optional)
+   * @param header1 header parameter (optional)
+   * @return CompletableFuture&lt;Void&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<Void> fakeHttpSignatureTest(Pet pet, String query1, String header1) throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = fakeHttpSignatureTestRequestBuilder(pet, query1, header1);
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("fakeHttpSignatureTest", localVarResponse));
             }
             return CompletableFuture.completedFuture(null);
       });
@@ -108,15 +199,17 @@ public class FakeApi {
   }
 
   /**
-   * creates an XmlItem
+   * test http signature authentication
-   * this route creates an XmlItem
+   * 
-   * @param xmlItem XmlItem Body (required)
+   * @param pet Pet object that needs to be added to the store (required)
+   * @param query1 query parameter (optional)
+   * @param header1 header parameter (optional)
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> createXmlItemWithHttpInfo(XmlItem xmlItem) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> fakeHttpSignatureTestWithHttpInfo(Pet pet, String query1, String header1) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = createXmlItemRequestBuilder(xmlItem);
+      HttpRequest.Builder localVarRequestBuilder = fakeHttpSignatureTestRequestBuilder(pet, query1, header1);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -124,7 +217,7 @@ public class FakeApi {
               memberVarAsyncResponseInterceptor.accept(localVarResponse);
             }
             if (localVarResponse.statusCode()/ 100 != 2) {
-              return CompletableFuture.failedFuture(getApiException("createXmlItem", localVarResponse));
+              return CompletableFuture.failedFuture(getApiException("fakeHttpSignatureTest", localVarResponse));
             }
             return CompletableFuture.completedFuture(
                 new ApiResponse<Void>(localVarResponse.statusCode(), localVarResponse.headers().map(), null)
@@ -137,24 +230,36 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder createXmlItemRequestBuilder(XmlItem xmlItem) throws ApiException {
+  private HttpRequest.Builder fakeHttpSignatureTestRequestBuilder(Pet pet, String query1, String header1) throws ApiException {
-    // verify the required parameter 'xmlItem' is set
+    // verify the required parameter 'pet' is set
-    if (xmlItem == null) {
+    if (pet == null) {
-      throw new ApiException(400, "Missing the required parameter 'xmlItem' when calling createXmlItem");
+      throw new ApiException(400, "Missing the required parameter 'pet' when calling fakeHttpSignatureTest");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
 
-    String localVarPath = "/fake/create_xml_item";
+    String localVarPath = "/fake/http-signature-test";
 
-    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+    List<Pair> localVarQueryParams = new ArrayList<>();
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("query_1", query1));
 
-    localVarRequestBuilder.header("Content-Type", "application/xml");
+    if (!localVarQueryParams.isEmpty()) {
+      StringJoiner queryJoiner = new StringJoiner("&");
+      localVarQueryParams.forEach(p -> queryJoiner.add(p.getName() + '=' + p.getValue()));
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath + '?' + queryJoiner.toString()));
+    } else {
+      localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+    }
+
+    if (header1 != null) {
+      localVarRequestBuilder.header("header_1", header1.toString());
+    }
+    localVarRequestBuilder.header("Content-Type", "application/json");
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(xmlItem);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(pet);
-      localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+      localVarRequestBuilder.method("GET", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);
     }
@@ -263,13 +368,13 @@ public class FakeApi {
   /**
    * 
    * Test serialization of object with outer number type
-   * @param body Input composite as post body (optional)
+   * @param outerComposite Input composite as post body (optional)
    * @return CompletableFuture&lt;OuterComposite&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<OuterComposite> fakeOuterCompositeSerialize(OuterComposite body) throws ApiException {
+  public CompletableFuture<OuterComposite> fakeOuterCompositeSerialize(OuterComposite outerComposite) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = fakeOuterCompositeSerializeRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = fakeOuterCompositeSerializeRequestBuilder(outerComposite);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -294,13 +399,13 @@ public class FakeApi {
   /**
    * 
    * Test serialization of object with outer number type
-   * @param body Input composite as post body (optional)
+   * @param outerComposite Input composite as post body (optional)
    * @return CompletableFuture&lt;ApiResponse&lt;OuterComposite&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<OuterComposite>> fakeOuterCompositeSerializeWithHttpInfo(OuterComposite body) throws ApiException {
+  public CompletableFuture<ApiResponse<OuterComposite>> fakeOuterCompositeSerializeWithHttpInfo(OuterComposite outerComposite) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = fakeOuterCompositeSerializeRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = fakeOuterCompositeSerializeRequestBuilder(outerComposite);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -329,7 +434,7 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder fakeOuterCompositeSerializeRequestBuilder(OuterComposite body) throws ApiException {
+  private HttpRequest.Builder fakeOuterCompositeSerializeRequestBuilder(OuterComposite outerComposite) throws ApiException {
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
 
@@ -341,7 +446,7 @@ public class FakeApi {
     localVarRequestBuilder.header("Accept", "*/*");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(outerComposite);
       localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);
@@ -539,19 +644,117 @@ public class FakeApi {
   }
   /**
    * 
-   * For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+   * Test serialization of enum (int) properties with examples
-   * @param body  (required)
+   * @param outerObjectWithEnumProperty Input enum (int) as post body (required)
-   * @return CompletableFuture&lt;Void&gt;
+   * @return CompletableFuture&lt;OuterObjectWithEnumProperty&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> testBodyWithFileSchema(FileSchemaTestClass body) throws ApiException {
+  public CompletableFuture<OuterObjectWithEnumProperty> fakePropertyEnumIntegerSerialize(OuterObjectWithEnumProperty outerObjectWithEnumProperty) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testBodyWithFileSchemaRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = fakePropertyEnumIntegerSerializeRequestBuilder(outerObjectWithEnumProperty);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
             if (localVarResponse.statusCode()/ 100 != 2) {
-              return CompletableFuture.failedFuture(getApiException("testBodyWithFileSchema", localVarResponse));
+              return CompletableFuture.failedFuture(getApiException("fakePropertyEnumIntegerSerialize", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<OuterObjectWithEnumProperty>() {})
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+      });
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  /**
+   * 
+   * Test serialization of enum (int) properties with examples
+   * @param outerObjectWithEnumProperty Input enum (int) as post body (required)
+   * @return CompletableFuture&lt;ApiResponse&lt;OuterObjectWithEnumProperty&gt;&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<ApiResponse<OuterObjectWithEnumProperty>> fakePropertyEnumIntegerSerializeWithHttpInfo(OuterObjectWithEnumProperty outerObjectWithEnumProperty) throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = fakePropertyEnumIntegerSerializeRequestBuilder(outerObjectWithEnumProperty);
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (memberVarAsyncResponseInterceptor != null) {
+              memberVarAsyncResponseInterceptor.accept(localVarResponse);
+            }
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("fakePropertyEnumIntegerSerialize", localVarResponse));
+            }
+            try {
+              String responseBody = localVarResponse.body();
+              return CompletableFuture.completedFuture(
+                  new ApiResponse<OuterObjectWithEnumProperty>(
+                      localVarResponse.statusCode(),
+                      localVarResponse.headers().map(),
+                      responseBody == null || responseBody.isBlank() ? null : memberVarObjectMapper.readValue(responseBody, new TypeReference<OuterObjectWithEnumProperty>() {}))
+              );
+            } catch (IOException e) {
+              return CompletableFuture.failedFuture(new ApiException(e));
+            }
+        }
+      );
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  private HttpRequest.Builder fakePropertyEnumIntegerSerializeRequestBuilder(OuterObjectWithEnumProperty outerObjectWithEnumProperty) throws ApiException {
+    // verify the required parameter 'outerObjectWithEnumProperty' is set
+    if (outerObjectWithEnumProperty == null) {
+      throw new ApiException(400, "Missing the required parameter 'outerObjectWithEnumProperty' when calling fakePropertyEnumIntegerSerialize");
+    }
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/fake/property/enum-int";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Content-Type", "application/json");
+    localVarRequestBuilder.header("Accept", "*/*");
+
+    try {
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(outerObjectWithEnumProperty);
+      localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+  /**
+   * 
+   * For this test, the body has to be a binary file.
+   * @param body image to upload (required)
+   * @return CompletableFuture&lt;Void&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<Void> testBodyWithBinary(File body) throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithBinaryRequestBuilder(body);
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("testBodyWithBinary", localVarResponse));
             }
             return CompletableFuture.completedFuture(null);
       });
@@ -563,14 +766,14 @@ public class FakeApi {
 
   /**
    * 
-   * For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+   * For this test, the body has to be a binary file.
-   * @param body  (required)
+   * @param body image to upload (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> testBodyWithFileSchemaWithHttpInfo(FileSchemaTestClass body) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> testBodyWithBinaryWithHttpInfo(File body) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testBodyWithFileSchemaRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithBinaryRequestBuilder(body);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -578,7 +781,7 @@ public class FakeApi {
               memberVarAsyncResponseInterceptor.accept(localVarResponse);
             }
             if (localVarResponse.statusCode()/ 100 != 2) {
-              return CompletableFuture.failedFuture(getApiException("testBodyWithFileSchema", localVarResponse));
+              return CompletableFuture.failedFuture(getApiException("testBodyWithBinary", localVarResponse));
             }
             return CompletableFuture.completedFuture(
                 new ApiResponse<Void>(localVarResponse.statusCode(), localVarResponse.headers().map(), null)
@@ -591,19 +794,19 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testBodyWithFileSchemaRequestBuilder(FileSchemaTestClass body) throws ApiException {
+  private HttpRequest.Builder testBodyWithBinaryRequestBuilder(File body) throws ApiException {
     // verify the required parameter 'body' is set
     if (body == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithFileSchema");
+      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithBinary");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
 
-    String localVarPath = "/fake/body-with-file-schema";
+    String localVarPath = "/fake/body-with-binary";
 
     localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
 
-    localVarRequestBuilder.header("Content-Type", "application/json");
+    localVarRequestBuilder.header("Content-Type", "image/png");
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
@@ -622,15 +825,98 @@ public class FakeApi {
   }
   /**
    * 
-   * 
+   * For this test, the body for this request must reference a schema named &#x60;File&#x60;.
-   * @param query  (required)
+   * @param fileSchemaTestClass  (required)
-   * @param body  (required)
    * @return CompletableFuture&lt;Void&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> testBodyWithQueryParams(String query, User body) throws ApiException {
+  public CompletableFuture<Void> testBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testBodyWithQueryParamsRequestBuilder(query, body);
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithFileSchemaRequestBuilder(fileSchemaTestClass);
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("testBodyWithFileSchema", localVarResponse));
+            }
+            return CompletableFuture.completedFuture(null);
+      });
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  /**
+   * 
+   * For this test, the body for this request must reference a schema named &#x60;File&#x60;.
+   * @param fileSchemaTestClass  (required)
+   * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<ApiResponse<Void>> testBodyWithFileSchemaWithHttpInfo(FileSchemaTestClass fileSchemaTestClass) throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithFileSchemaRequestBuilder(fileSchemaTestClass);
+      return memberVarHttpClient.sendAsync(
+          localVarRequestBuilder.build(),
+          HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
+            if (memberVarAsyncResponseInterceptor != null) {
+              memberVarAsyncResponseInterceptor.accept(localVarResponse);
+            }
+            if (localVarResponse.statusCode()/ 100 != 2) {
+              return CompletableFuture.failedFuture(getApiException("testBodyWithFileSchema", localVarResponse));
+            }
+            return CompletableFuture.completedFuture(
+                new ApiResponse<Void>(localVarResponse.statusCode(), localVarResponse.headers().map(), null)
+            );
+        }
+      );
+    }
+    catch (ApiException e) {
+      return CompletableFuture.failedFuture(e);
+    }
+  }
+
+  private HttpRequest.Builder testBodyWithFileSchemaRequestBuilder(FileSchemaTestClass fileSchemaTestClass) throws ApiException {
+    // verify the required parameter 'fileSchemaTestClass' is set
+    if (fileSchemaTestClass == null) {
+      throw new ApiException(400, "Missing the required parameter 'fileSchemaTestClass' when calling testBodyWithFileSchema");
+    }
+
+    HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
+
+    String localVarPath = "/fake/body-with-file-schema";
+
+    localVarRequestBuilder.uri(URI.create(memberVarBaseUri + localVarPath));
+
+    localVarRequestBuilder.header("Content-Type", "application/json");
+    localVarRequestBuilder.header("Accept", "application/json");
+
+    try {
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(fileSchemaTestClass);
+      localVarRequestBuilder.method("PUT", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
+    } catch (IOException e) {
+      throw new ApiException(e);
+    }
+    if (memberVarReadTimeout != null) {
+      localVarRequestBuilder.timeout(memberVarReadTimeout);
+    }
+    if (memberVarInterceptor != null) {
+      memberVarInterceptor.accept(localVarRequestBuilder);
+    }
+    return localVarRequestBuilder;
+  }
+  /**
+   * 
+   * 
+   * @param query  (required)
+   * @param user  (required)
+   * @return CompletableFuture&lt;Void&gt;
+   * @throws ApiException if fails to make API call
+   */
+  public CompletableFuture<Void> testBodyWithQueryParams(String query, User user) throws ApiException {
+    try {
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithQueryParamsRequestBuilder(query, user);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -649,13 +935,13 @@ public class FakeApi {
    * 
    * 
    * @param query  (required)
-   * @param body  (required)
+   * @param user  (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> testBodyWithQueryParamsWithHttpInfo(String query, User body) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> testBodyWithQueryParamsWithHttpInfo(String query, User user) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testBodyWithQueryParamsRequestBuilder(query, body);
+      HttpRequest.Builder localVarRequestBuilder = testBodyWithQueryParamsRequestBuilder(query, user);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -676,14 +962,14 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testBodyWithQueryParamsRequestBuilder(String query, User body) throws ApiException {
+  private HttpRequest.Builder testBodyWithQueryParamsRequestBuilder(String query, User user) throws ApiException {
     // verify the required parameter 'query' is set
     if (query == null) {
       throw new ApiException(400, "Missing the required parameter 'query' when calling testBodyWithQueryParams");
     }
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'user' is set
-    if (body == null) {
+    if (user == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testBodyWithQueryParams");
+      throw new ApiException(400, "Missing the required parameter 'user' when calling testBodyWithQueryParams");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
@@ -705,7 +991,7 @@ public class FakeApi {
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(user);
       localVarRequestBuilder.method("PUT", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);
@@ -721,13 +1007,13 @@ public class FakeApi {
   /**
    * To test \&quot;client\&quot; model
    * To test \&quot;client\&quot; model
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture&lt;Client&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Client> testClientModel(Client body) throws ApiException {
+  public CompletableFuture<Client> testClientModel(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testClientModelRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = testClientModelRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -752,13 +1038,13 @@ public class FakeApi {
   /**
    * To test \&quot;client\&quot; model
    * To test \&quot;client\&quot; model
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Client&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Client>> testClientModelWithHttpInfo(Client body) throws ApiException {
+  public CompletableFuture<ApiResponse<Client>> testClientModelWithHttpInfo(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testClientModelRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = testClientModelRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -787,10 +1073,10 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testClientModelRequestBuilder(Client body) throws ApiException {
+  private HttpRequest.Builder testClientModelRequestBuilder(Client client) throws ApiException {
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testClientModel");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling testClientModel");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
@@ -803,7 +1089,7 @@ public class FakeApi {
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(client);
       localVarRequestBuilder.method("PATCH", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);
@@ -817,8 +1103,8 @@ public class FakeApi {
     return localVarRequestBuilder;
   }
   /**
-   * 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 
-   * 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 
    * @param number None (required)
    * @param _double None (required)
    * @param patternWithoutDelimiter None (required)
@@ -854,8 +1140,8 @@ public class FakeApi {
   }
 
   /**
-   * Fake endpoint for testing various parameters  假端點  偽のエンドポイント  가짜 엔드 포인트
+   * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
-   * 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 
    * @param number None (required)
    * @param _double None (required)
    * @param patternWithoutDelimiter None (required)
@@ -940,14 +1226,15 @@ public class FakeApi {
    * @param enumQueryString Query parameter enum test (string) (optional, default to -efg)
    * @param enumQueryInteger Query parameter enum test (double) (optional)
    * @param enumQueryDouble Query parameter enum test (double) (optional)
+   * @param enumQueryModelArray  (optional
    * @param enumFormStringArray Form parameter enum test (string array) (optional
    * @param enumFormString Form parameter enum test (string) (optional, default to -efg)
    * @return CompletableFuture&lt;Void&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> testEnumParameters(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString) throws ApiException {
+  public CompletableFuture<Void> testEnumParameters(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<EnumClass> enumQueryModelArray, List<String> enumFormStringArray, String enumFormString) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testEnumParametersRequestBuilder(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+      HttpRequest.Builder localVarRequestBuilder = testEnumParametersRequestBuilder(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -971,14 +1258,15 @@ public class FakeApi {
    * @param enumQueryString Query parameter enum test (string) (optional, default to -efg)
    * @param enumQueryInteger Query parameter enum test (double) (optional)
    * @param enumQueryDouble Query parameter enum test (double) (optional)
+   * @param enumQueryModelArray  (optional
    * @param enumFormStringArray Form parameter enum test (string array) (optional
    * @param enumFormString Form parameter enum test (string) (optional, default to -efg)
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> testEnumParametersWithHttpInfo(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> testEnumParametersWithHttpInfo(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<EnumClass> enumQueryModelArray, List<String> enumFormStringArray, String enumFormString) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testEnumParametersRequestBuilder(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+      HttpRequest.Builder localVarRequestBuilder = testEnumParametersRequestBuilder(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -999,17 +1287,18 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testEnumParametersRequestBuilder(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<String> enumFormStringArray, String enumFormString) throws ApiException {
+  private HttpRequest.Builder testEnumParametersRequestBuilder(List<String> enumHeaderStringArray, String enumHeaderString, List<String> enumQueryStringArray, String enumQueryString, Integer enumQueryInteger, Double enumQueryDouble, List<EnumClass> enumQueryModelArray, List<String> enumFormStringArray, String enumFormString) throws ApiException {
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
 
     String localVarPath = "/fake";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    localVarQueryParams.addAll(ApiClient.parameterToPairs("csv", "enum_query_string_array", enumQueryStringArray));
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("multi", "enum_query_string_array", enumQueryStringArray));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("enum_query_string", enumQueryString));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("enum_query_integer", enumQueryInteger));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("enum_query_double", enumQueryDouble));
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("multi", "enum_query_model_array", enumQueryModelArray));
 
     if (!localVarQueryParams.isEmpty()) {
       StringJoiner queryJoiner = new StringJoiner("&");
@@ -1263,13 +1552,13 @@ public class FakeApi {
   /**
    * test inline additionalProperties
    * 
-   * @param param request body (required)
+   * @param requestBody request body (required)
    * @return CompletableFuture&lt;Void&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> testInlineAdditionalProperties(Map<String, String> param) throws ApiException {
+  public CompletableFuture<Void> testInlineAdditionalProperties(Map<String, String> requestBody) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testInlineAdditionalPropertiesRequestBuilder(param);
+      HttpRequest.Builder localVarRequestBuilder = testInlineAdditionalPropertiesRequestBuilder(requestBody);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -1287,13 +1576,13 @@ public class FakeApi {
   /**
    * test inline additionalProperties
    * 
-   * @param param request body (required)
+   * @param requestBody request body (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> testInlineAdditionalPropertiesWithHttpInfo(Map<String, String> param) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> testInlineAdditionalPropertiesWithHttpInfo(Map<String, String> requestBody) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testInlineAdditionalPropertiesRequestBuilder(param);
+      HttpRequest.Builder localVarRequestBuilder = testInlineAdditionalPropertiesRequestBuilder(requestBody);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -1314,10 +1603,10 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testInlineAdditionalPropertiesRequestBuilder(Map<String, String> param) throws ApiException {
+  private HttpRequest.Builder testInlineAdditionalPropertiesRequestBuilder(Map<String, String> requestBody) throws ApiException {
-    // verify the required parameter 'param' is set
+    // verify the required parameter 'requestBody' is set
-    if (param == null) {
+    if (requestBody == null) {
-      throw new ApiException(400, "Missing the required parameter 'param' when calling testInlineAdditionalProperties");
+      throw new ApiException(400, "Missing the required parameter 'requestBody' when calling testInlineAdditionalProperties");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
@@ -1330,7 +1619,7 @@ public class FakeApi {
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(param);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(requestBody);
       localVarRequestBuilder.method("POST", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);
@@ -1434,12 +1723,14 @@ public class FakeApi {
    * @param http  (required)
    * @param url  (required)
    * @param context  (required)
+   * @param allowEmpty  (required)
+   * @param language  (optional
    * @return CompletableFuture&lt;Void&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Void> testQueryParameterCollectionFormat(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context) throws ApiException {
+  public CompletableFuture<Void> testQueryParameterCollectionFormat(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context, String allowEmpty, Map<String, String> language) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testQueryParameterCollectionFormatRequestBuilder(pipe, ioutil, http, url, context);
+      HttpRequest.Builder localVarRequestBuilder = testQueryParameterCollectionFormatRequestBuilder(pipe, ioutil, http, url, context, allowEmpty, language);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -1462,12 +1753,14 @@ public class FakeApi {
    * @param http  (required)
    * @param url  (required)
    * @param context  (required)
+   * @param allowEmpty  (required)
+   * @param language  (optional
    * @return CompletableFuture&lt;ApiResponse&lt;Void&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Void>> testQueryParameterCollectionFormatWithHttpInfo(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context) throws ApiException {
+  public CompletableFuture<ApiResponse<Void>> testQueryParameterCollectionFormatWithHttpInfo(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context, String allowEmpty, Map<String, String> language) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testQueryParameterCollectionFormatRequestBuilder(pipe, ioutil, http, url, context);
+      HttpRequest.Builder localVarRequestBuilder = testQueryParameterCollectionFormatRequestBuilder(pipe, ioutil, http, url, context, allowEmpty, language);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -1488,7 +1781,7 @@ public class FakeApi {
     }
   }
 
-  private HttpRequest.Builder testQueryParameterCollectionFormatRequestBuilder(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context) throws ApiException {
+  private HttpRequest.Builder testQueryParameterCollectionFormatRequestBuilder(List<String> pipe, List<String> ioutil, List<String> http, List<String> url, List<String> context, String allowEmpty, Map<String, String> language) throws ApiException {
     // verify the required parameter 'pipe' is set
     if (pipe == null) {
       throw new ApiException(400, "Missing the required parameter 'pipe' when calling testQueryParameterCollectionFormat");
@@ -1509,17 +1802,23 @@ public class FakeApi {
     if (context == null) {
       throw new ApiException(400, "Missing the required parameter 'context' when calling testQueryParameterCollectionFormat");
     }
+    // verify the required parameter 'allowEmpty' is set
+    if (allowEmpty == null) {
+      throw new ApiException(400, "Missing the required parameter 'allowEmpty' when calling testQueryParameterCollectionFormat");
+    }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
 
     String localVarPath = "/fake/test-query-parameters";
 
     List<Pair> localVarQueryParams = new ArrayList<>();
-    localVarQueryParams.addAll(ApiClient.parameterToPairs("csv", "pipe", pipe));
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("pipes", "pipe", pipe));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("csv", "ioutil", ioutil));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("ssv", "http", http));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("csv", "url", url));
     localVarQueryParams.addAll(ApiClient.parameterToPairs("multi", "context", context));
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("language", language));
+    localVarQueryParams.addAll(ApiClient.parameterToPairs("allowEmpty", allowEmpty));
 
     if (!localVarQueryParams.isEmpty()) {
       StringJoiner queryJoiner = new StringJoiner("&");

samples/client/petstore/java/native-async/src/main/java/org/openapitools/client/api/FakeClassnameTags123Api.java

@@ -78,13 +78,13 @@ public class FakeClassnameTags123Api {
   /**
    * To test class name in snake case
    * To test class name in snake case
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture<Client>
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<Client> testClassname(Client body) throws ApiException {
+  public CompletableFuture<Client> testClassname(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testClassnameRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = testClassnameRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -109,13 +109,13 @@ public class FakeClassnameTags123Api {
   /**
    * To test class name in snake case
    * To test class name in snake case
-   * @param body client model (required)
+   * @param client client model (required)
    * @return CompletableFuture&lt;ApiResponse&lt;Client&gt;&gt;
    * @throws ApiException if fails to make API call
    */
-  public CompletableFuture<ApiResponse<Client>> testClassnameWithHttpInfo(Client body) throws ApiException {
+  public CompletableFuture<ApiResponse<Client>> testClassnameWithHttpInfo(Client client) throws ApiException {
     try {
-      HttpRequest.Builder localVarRequestBuilder = testClassnameRequestBuilder(body);
+      HttpRequest.Builder localVarRequestBuilder = testClassnameRequestBuilder(client);
       return memberVarHttpClient.sendAsync(
           localVarRequestBuilder.build(),
           HttpResponse.BodyHandlers.ofString()).thenComposeAsync(localVarResponse -> {
@@ -144,10 +144,10 @@ public class FakeClassnameTags123Api {
     }
   }
 
-  private HttpRequest.Builder testClassnameRequestBuilder(Client body) throws ApiException {
+  private HttpRequest.Builder testClassnameRequestBuilder(Client client) throws ApiException {
-    // verify the required parameter 'body' is set
+    // verify the required parameter 'client' is set
-    if (body == null) {
+    if (client == null) {
-      throw new ApiException(400, "Missing the required parameter 'body' when calling testClassname");
+      throw new ApiException(400, "Missing the required parameter 'client' when calling testClassname");
     }
 
     HttpRequest.Builder localVarRequestBuilder = HttpRequest.newBuilder();
@@ -160,7 +160,7 @@ public class FakeClassnameTags123Api {
     localVarRequestBuilder.header("Accept", "application/json");
 
     try {
-      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(body);
+      byte[] localVarPostBody = memberVarObjectMapper.writeValueAsBytes(client);
       localVarRequestBuilder.method("PATCH", HttpRequest.BodyPublishers.ofByteArray(localVarPostBody));
     } catch (IOException e) {
       throw new ApiException(e);