#21582 [BUG][dart-dio] Bug generating inline enums with common names

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java

@@ -577,6 +577,12 @@ public void postProcessModelProperty(CodegenModel model, CodegenProperty propert
                 // inner items e.g. enums in collections, only works for one level
                 // but same is the case for DefaultCodegen
                 property.setDatatypeWithEnum(property.datatypeWithEnum.replace(property.items.datatypeWithEnum, enumName));
+                // Because properties are cached in org.openapitools.codegen.DefaultCodegen.fromProperty(java.lang.String, io.swagger.v3.oas.models.media.Schema, boolean, boolean)
+                // then the same object could be for multiple properties where the name of the inline enum is the same
+                // in 2 different classes and the following renaming will impact properties in other classes we
+                // therefore clone them before editing
+                property.items = property.items.clone();
+                property.mostInnerItems = property.items;
                 property.items.setDatatypeWithEnum(enumName);
                 property.items.setEnumName(enumName);
             } else {

modules/openapi-generator/src/test/resources/3_0/dart/petstore-with-fake-endpoints-models-for-testing.yaml

@@ -1303,6 +1303,19 @@ paths:
       responses:
         200:
           description: The instance started successfully
+  /fake/duplicate-inline-enums:
+    get:
+      tags:
+        - fake
+      summary: test objects with duplicate inline enums see issue# 21582
+      operationId: fake-duplicate-inline-enum
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ObjectThatReferencesObjectsWithDuplicateInlineEnums'
 servers:
   - url: 'http://{server}.swagger.io:{port}/v2'
     description: petstore server
@@ -2081,3 +2094,36 @@ components:
           $ref: '#/components/schemas/TestEnum'
           default: ""
       title: TestItem
+    ObjectWithInlineEnum:
+      type: object
+      properties:
+        attribute:
+          description: 'Object one attribute enum'
+          type: 'array'
+          uniqueItems: true
+          items:
+            type: 'string'
+            enum: [
+              'value_one',
+              'value_two'
+            ]
+    ObjectWithDuplicateInlineEnum:
+      type: object
+      properties:
+        attribute:
+          description: 'Object two attribute enum'
+          type: 'array'
+          uniqueItems: true
+          items:
+            type: 'string'
+            enum: [
+              'value_one',
+              'value_two'
+            ]
+    ObjectThatReferencesObjectsWithDuplicateInlineEnums:
+      type: object
+      properties:
+        object_one:
+          $ref: '#/components/schemas/ObjectWithInlineEnum'
+        object_two:
+          $ref: '#/components/schemas/ObjectWithDuplicateInlineEnum'

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/.openapi-generator/FILES

@@ -40,7 +40,10 @@ doc/ModelReturn.md
 doc/Name.md
 doc/NullableClass.md
 doc/NumberOnly.md
+doc/ObjectThatReferencesObjectsWithDuplicateInlineEnums.md
 doc/ObjectWithDeprecatedFields.md
+doc/ObjectWithDuplicateInlineEnum.md
+doc/ObjectWithInlineEnum.md
 doc/Order.md
 doc/OuterComposite.md
 doc/OuterEnum.md
@@ -110,7 +113,10 @@ lib/src/model/model_return.dart
 lib/src/model/name.dart
 lib/src/model/nullable_class.dart
 lib/src/model/number_only.dart
+lib/src/model/object_that_references_objects_with_duplicate_inline_enums.dart
 lib/src/model/object_with_deprecated_fields.dart
+lib/src/model/object_with_duplicate_inline_enum.dart
+lib/src/model/object_with_inline_enum.dart
 lib/src/model/order.dart
 lib/src/model/outer_composite.dart
 lib/src/model/outer_enum.dart

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/README.md

@@ -69,6 +69,7 @@ Class | Method | HTTP request | Description
 [*AnotherFakeApi*](doc/AnotherFakeApi.md) | [**call123testSpecialTags**](doc/AnotherFakeApi.md#call123testspecialtags) | **PATCH** /another-fake/dummy | To test special tags
 [*DefaultApi*](doc/DefaultApi.md) | [**fooGet**](doc/DefaultApi.md#fooget) | **GET** /foo | 
 [*FakeApi*](doc/FakeApi.md) | [**fakeBigDecimalMap**](doc/FakeApi.md#fakebigdecimalmap) | **GET** /fake/BigDecimalMap | 
+[*FakeApi*](doc/FakeApi.md) | [**fakeDuplicateInlineEnum**](doc/FakeApi.md#fakeduplicateinlineenum) | **GET** /fake/duplicate-inline-enums | test objects with duplicate inline enums see issue# 21582
 [*FakeApi*](doc/FakeApi.md) | [**fakeHealthGet**](doc/FakeApi.md#fakehealthget) | **GET** /fake/health | Health check endpoint
 [*FakeApi*](doc/FakeApi.md) | [**fakeHttpSignatureTest**](doc/FakeApi.md#fakehttpsignaturetest) | **GET** /fake/http-signature-test | test http signature authentication
 [*FakeApi*](doc/FakeApi.md) | [**fakeOuterBooleanSerialize**](doc/FakeApi.md#fakeouterbooleanserialize) | **POST** /fake/outer/boolean | 
@@ -150,7 +151,10 @@ Class | Method | HTTP request | Description
  - [Name](doc/Name.md)
  - [NullableClass](doc/NullableClass.md)
  - [NumberOnly](doc/NumberOnly.md)
+ - [ObjectThatReferencesObjectsWithDuplicateInlineEnums](doc/ObjectThatReferencesObjectsWithDuplicateInlineEnums.md)
  - [ObjectWithDeprecatedFields](doc/ObjectWithDeprecatedFields.md)
+ - [ObjectWithDuplicateInlineEnum](doc/ObjectWithDuplicateInlineEnum.md)
+ - [ObjectWithInlineEnum](doc/ObjectWithInlineEnum.md)
  - [Order](doc/Order.md)
  - [OuterComposite](doc/OuterComposite.md)
  - [OuterEnum](doc/OuterEnum.md)

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/FakeApi.md

@@ -10,6 +10,7 @@ All URIs are relative to *http://petstore.swagger.io:80/v2*
 Method | HTTP request | Description
 ------------- | ------------- | -------------
 [**fakeBigDecimalMap**](FakeApi.md#fakebigdecimalmap) | **GET** /fake/BigDecimalMap | 
+[**fakeDuplicateInlineEnum**](FakeApi.md#fakeduplicateinlineenum) | **GET** /fake/duplicate-inline-enums | test objects with duplicate inline enums see issue# 21582
 [**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 | 
@@ -72,6 +73,43 @@ No authorization required
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
+# **fakeDuplicateInlineEnum**
+> ObjectThatReferencesObjectsWithDuplicateInlineEnums fakeDuplicateInlineEnum()
+
+test objects with duplicate inline enums see issue# 21582
+
+### Example
+```dart
+import 'package:openapi/api.dart';
+
+final api = Openapi().getFakeApi();
+
+try {
+    final response = api.fakeDuplicateInlineEnum();
+    print(response);
+} catch on DioException (e) {
+    print('Exception when calling FakeApi->fakeDuplicateInlineEnum: $e\n');
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+
+### Return type
+
+[**ObjectThatReferencesObjectsWithDuplicateInlineEnums**](ObjectThatReferencesObjectsWithDuplicateInlineEnums.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
 # **fakeHealthGet**
 > HealthCheckResult fakeHealthGet()
 

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/ObjectThatReferencesObjectsWithDuplicateInlineEnums.md

@@ -0,0 +1,16 @@
+# openapi.model.ObjectThatReferencesObjectsWithDuplicateInlineEnums
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**objectOne** | [**ObjectWithInlineEnum**](ObjectWithInlineEnum.md) |  | [optional] 
+**objectTwo** | [**ObjectWithDuplicateInlineEnum**](ObjectWithDuplicateInlineEnum.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/ObjectWithDuplicateInlineEnum.md

@@ -0,0 +1,15 @@
+# openapi.model.ObjectWithDuplicateInlineEnum
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**attribute** | **Set<String>** | Object two attribute enum | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/doc/ObjectWithInlineEnum.md

@@ -0,0 +1,15 @@
+# openapi.model.ObjectWithInlineEnum
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**attribute** | **Set<String>** | Object one attribute enum | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/openapi.dart

@@ -51,7 +51,10 @@ export 'package:openapi/src/model/model_return.dart';
 export 'package:openapi/src/model/name.dart';
 export 'package:openapi/src/model/nullable_class.dart';
 export 'package:openapi/src/model/number_only.dart';
+export 'package:openapi/src/model/object_that_references_objects_with_duplicate_inline_enums.dart';
 export 'package:openapi/src/model/object_with_deprecated_fields.dart';
+export 'package:openapi/src/model/object_with_duplicate_inline_enum.dart';
+export 'package:openapi/src/model/object_with_inline_enum.dart';
 export 'package:openapi/src/model/order.dart';
 export 'package:openapi/src/model/outer_composite.dart';
 export 'package:openapi/src/model/outer_enum.dart';

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/src/api/fake_api.dart

@@ -15,6 +15,7 @@ import 'package:openapi/src/model/file_schema_test_class.dart';
 import 'package:openapi/src/model/health_check_result.dart';
 import 'package:openapi/src/model/model_client.dart';
 import 'package:openapi/src/model/model_enum_class.dart';
+import 'package:openapi/src/model/object_that_references_objects_with_duplicate_inline_enums.dart';
 import 'package:openapi/src/model/outer_composite.dart';
 import 'package:openapi/src/model/outer_object_with_enum_property.dart';
 import 'package:openapi/src/model/pet.dart';
@@ -97,6 +98,76 @@ _responseData = rawData == null ? null : deserialize<FakeBigDecimalMap200Respons
     );
   }
 
+  /// test objects with duplicate inline enums see issue# 21582
+  /// 
+  ///
+  /// Parameters:
+  /// * [cancelToken] - A [CancelToken] that can be used to cancel the operation
+  /// * [headers] - Can be used to add additional headers to the request
+  /// * [extras] - Can be used to add flags to the request
+  /// * [validateStatus] - A [ValidateStatus] callback that can be used to determine request success based on the HTTP status of the response
+  /// * [onSendProgress] - A [ProgressCallback] that can be used to get the send progress
+  /// * [onReceiveProgress] - A [ProgressCallback] that can be used to get the receive progress
+  ///
+  /// Returns a [Future] containing a [Response] with a [ObjectThatReferencesObjectsWithDuplicateInlineEnums] as data
+  /// Throws [DioException] if API call or serialization fails
+  Future<Response<ObjectThatReferencesObjectsWithDuplicateInlineEnums>> fakeDuplicateInlineEnum({ 
+    CancelToken? cancelToken,
+    Map<String, dynamic>? headers,
+    Map<String, dynamic>? extra,
+    ValidateStatus? validateStatus,
+    ProgressCallback? onSendProgress,
+    ProgressCallback? onReceiveProgress,
+  }) async {
+    final _path = r'/fake/duplicate-inline-enums';
+    final _options = Options(
+      method: r'GET',
+      headers: <String, dynamic>{
+        ...?headers,
+      },
+      extra: <String, dynamic>{
+        'secure': <Map<String, String>>[],
+        ...?extra,
+      },
+      validateStatus: validateStatus,
+    );
+
+    final _response = await _dio.request<Object>(
+      _path,
+      options: _options,
+      cancelToken: cancelToken,
+      onSendProgress: onSendProgress,
+      onReceiveProgress: onReceiveProgress,
+    );
+
+    ObjectThatReferencesObjectsWithDuplicateInlineEnums? _responseData;
+
+    try {
+final rawData = _response.data;
+_responseData = rawData == null ? null : deserialize<ObjectThatReferencesObjectsWithDuplicateInlineEnums, ObjectThatReferencesObjectsWithDuplicateInlineEnums>(rawData, 'ObjectThatReferencesObjectsWithDuplicateInlineEnums', growable: true);
+
+    } catch (error, stackTrace) {
+      throw DioException(
+        requestOptions: _response.requestOptions,
+        response: _response,
+        type: DioExceptionType.unknown,
+        error: error,
+        stackTrace: stackTrace,
+      );
+    }
+
+    return Response<ObjectThatReferencesObjectsWithDuplicateInlineEnums>(
+      data: _responseData,
+      headers: _response.headers,
+      isRedirect: _response.isRedirect,
+      requestOptions: _response.requestOptions,
+      redirects: _response.redirects,
+      statusCode: _response.statusCode,
+      statusMessage: _response.statusMessage,
+      extra: _response.extra,
+    );
+  }
+
   /// Health check endpoint
   /// 
   ///

samples/openapi3/client/petstore/dart-dio/petstore_client_lib_fake-json_serializable/lib/src/deserialize.dart

@@ -31,7 +31,10 @@ import 'package:openapi/src/model/model_return.dart';
 import 'package:openapi/src/model/name.dart';
 import 'package:openapi/src/model/nullable_class.dart';
 import 'package:openapi/src/model/number_only.dart';
+import 'package:openapi/src/model/object_that_references_objects_with_duplicate_inline_enums.dart';
 import 'package:openapi/src/model/object_with_deprecated_fields.dart';
+import 'package:openapi/src/model/object_with_duplicate_inline_enum.dart';
+import 'package:openapi/src/model/object_with_inline_enum.dart';
 import 'package:openapi/src/model/order.dart';
 import 'package:openapi/src/model/outer_composite.dart';
 import 'package:openapi/src/model/outer_object_with_enum_property.dart';
@@ -131,8 +134,14 @@ final _regMap = RegExp(r'^Map<String,(.*)>$');
           return NullableClass.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'NumberOnly':
           return NumberOnly.fromJson(value as Map<String, dynamic>) as ReturnType;
+        case 'ObjectThatReferencesObjectsWithDuplicateInlineEnums':
+          return ObjectThatReferencesObjectsWithDuplicateInlineEnums.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'ObjectWithDeprecatedFields':
           return ObjectWithDeprecatedFields.fromJson(value as Map<String, dynamic>) as ReturnType;
+        case 'ObjectWithDuplicateInlineEnum':
+          return ObjectWithDuplicateInlineEnum.fromJson(value as Map<String, dynamic>) as ReturnType;
+        case 'ObjectWithInlineEnum':
+          return ObjectWithInlineEnum.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'Order':
           return Order.fromJson(value as Map<String, dynamic>) as ReturnType;
         case 'OuterComposite':