Support net8 in aspnetcore (#19051)

* Support net8 in aspnetcore * gen * typo * more * default swashbuckle * gen --------- Co-authored-by: Liri S <liri@ownid.com>
2025-05-12 20:50:55 +00:00 · 2024-07-16 19:02:41 +03:00 · 2024-07-16 19:02:41 +03:00 · 0002f8c506
commit 0002f8c506
parent c8587bb31d
264 changed files with 26959 additions and 232 deletions
--- a/.github/workflows/samples-dotnet8-server.yaml
+++ b/.github/workflows/samples-dotnet8-server.yaml
@ -0,0 +1,36 @@
+name: Samples C# .Net 8 Server
+
+on:
+  push:
+    paths:
+      - samples/server/petstore/aspnetcore-8.0/**
+      - samples/server/petstore/aspnetcore-8.0-*/**
+  pull_request:
+    paths:
+      - samples/server/petstore/aspnetcore-8.0/**
+      - samples/server/petstore/aspnetcore-8.0-*/**
+jobs:
+  build:
+    name: Build .Net 8 servers
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          - samples/server/petstore/aspnetcore-8.0
+          - samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse
+          - samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes
+          - samples/server/petstore/aspnetcore-8.0-pocoModels
+          - samples/server/petstore/aspnetcore-8.0-project4Models
+          - samples/server/petstore/aspnetcore-8.0-useSwashBuckle
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-dotnet@v4.0.0
+        with:
+          dotnet-version: '8.0.x'
+      - name: Build
+        working-directory: ${{ matrix.sample }}
+        run: dotnet build Org.OpenAPITools.sln
+      - name: Test
+        working-directory: ${{ matrix.sample }}
+        run: dotnet test Org.OpenAPITools.sln
--- a/bin/configs/aspnetcore-8.0-NewtonsoftFalse.yaml
+++ b/bin/configs/aspnetcore-8.0-NewtonsoftFalse.yaml
@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  useNewtonsoft: false
--- a/bin/configs/aspnetcore-8.0-nullableReferenceTypes.yaml
+++ b/bin/configs/aspnetcore-8.0-nullableReferenceTypes.yaml
@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  nullableReferenceTypes: true
--- a/bin/configs/aspnetcore-8.0-pocoModels.yaml
+++ b/bin/configs/aspnetcore-8.0-pocoModels.yaml
@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0-pocoModels
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  pocoModels: true
--- a/bin/configs/aspnetcore-8.0-project4Models.yaml
+++ b/bin/configs/aspnetcore-8.0-project4Models.yaml
@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0-project4Models
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  useSeparateModelProject: true
--- a/bin/configs/aspnetcore-8.0-useSwashBuckle.yaml
+++ b/bin/configs/aspnetcore-8.0-useSwashBuckle.yaml
@ -0,0 +1,11 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0-useSwashBuckle
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  useSwashBuckle: false
+  buildTarget: library
+  isLibrary: true
--- a/bin/configs/aspnetcore-8.0.yaml
+++ b/bin/configs/aspnetcore-8.0.yaml
@ -0,0 +1,8 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-8.0
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "8.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
--- a/docs/generators/aspnetcore.md
+++ b/docs/generators/aspnetcore.md
@ -18,7 +18,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl

 | Option | Description | Values | Default |
 | ------ | ----------- | ------ | ------- |
-|aspnetCoreVersion|ASP.NET Core version: 6.0, 5.0, 3.1, 3.0, 2.2, 2.1, 2.0 (deprecated)|<dl><dt>**2.0**</dt><dd>ASP.NET Core 2.0</dd><dt>**2.1**</dt><dd>ASP.NET Core 2.1</dd><dt>**2.2**</dt><dd>ASP.NET Core 2.2</dd><dt>**3.0**</dt><dd>ASP.NET Core 3.0</dd><dt>**3.1**</dt><dd>ASP.NET Core 3.1</dd><dt>**5.0**</dt><dd>ASP.NET Core 5.0</dd><dt>**6.0**</dt><dd>ASP.NET Core 6.0</dd></dl>|3.1|
+|aspnetCoreVersion|ASP.NET Core version: 6.0, 5.0, 3.1, 3.0, 2.2, 2.1, 2.0 (deprecated)|<dl><dt>**2.0**</dt><dd>ASP.NET Core 2.0</dd><dt>**2.1**</dt><dd>ASP.NET Core 2.1</dd><dt>**2.2**</dt><dd>ASP.NET Core 2.2</dd><dt>**3.0**</dt><dd>ASP.NET Core 3.0</dd><dt>**3.1**</dt><dd>ASP.NET Core 3.1</dd><dt>**5.0**</dt><dd>ASP.NET Core 5.0</dd><dt>**6.0**</dt><dd>ASP.NET Core 6.0</dd><dt>**7.0**</dt><dd>ASP.NET Core 7.0</dd><dt>**8.0**</dt><dd>ASP.NET Core 8.0</dd></dl>|8.0|
 |buildTarget|Target to build an application or library|<dl><dt>**program**</dt><dd>Generate code for a standalone server</dd><dt>**library**</dt><dd>Generate code for a server abstract class library</dd></dl>|program|
 |classModifier|Class Modifier for controller classes: Empty string or abstract.| ||
 |compatibilityVersion|ASP.Net Core CompatibilityVersion| |Version_2_2|
@ -45,7 +45,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |returnICollection|Return ICollection&lt;T&gt; instead of the concrete type.| |false|
 |sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
 |sourceFolder|source folder for generated code| |src|
-|swashbuckleVersion|Swashbuckle version: 3.0.0 (deprecated), 4.0.0 (deprecated), 5.0.0 (deprecated), 6.4.0|<dl><dt>**3.0.0**</dt><dd>Swashbuckle 3.0.0</dd><dt>**4.0.0**</dt><dd>Swashbuckle 4.0.0</dd><dt>**5.0.0**</dt><dd>Swashbuckle 5.0.0</dd><dt>**6.4.0**</dt><dd>Swashbuckle 6.4.0</dd></dl>|3.0.0|
+|swashbuckleVersion|Swashbuckle version: 3.0.0 (deprecated), 4.0.0 (deprecated), 5.0.0 (deprecated), 6.4.0|<dl><dt>**3.0.0**</dt><dd>Swashbuckle 3.0.0</dd><dt>**4.0.0**</dt><dd>Swashbuckle 4.0.0</dd><dt>**5.0.0**</dt><dd>Swashbuckle 5.0.0</dd><dt>**6.4.0**</dt><dd>Swashbuckle 6.4.0</dd></dl>|6.4.0|
 |useCollection|Deserialize array types to Collection&lt;T&gt; instead of List&lt;T&gt;.| |false|
 |useDateTimeForDate|Use DateTime to model date properties even if DateOnly supported. (.net 6.0+ only)| |false|
 |useDateTimeOffset|Use DateTimeOffset to model date-time properties| |false|
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AspNetServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AspNetServerCodegen.java
@ -186,7 +186,9 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
        aspnetCoreVersion.addEnum("3.1", "ASP.NET Core 3.1");
        aspnetCoreVersion.addEnum("5.0", "ASP.NET Core 5.0");
        aspnetCoreVersion.addEnum("6.0", "ASP.NET Core 6.0");
-        aspnetCoreVersion.setDefault("3.1");
+        aspnetCoreVersion.addEnum("7.0", "ASP.NET Core 7.0");
+        aspnetCoreVersion.addEnum("8.0", "ASP.NET Core 8.0");
+        aspnetCoreVersion.setDefault("8.0");
        aspnetCoreVersion.setOptValue(aspnetCoreVersion.getDefault());
        cliOptions.add(aspnetCoreVersion);

@ -194,7 +196,7 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
        swashbuckleVersion.addEnum("4.0.0", "Swashbuckle 4.0.0");
        swashbuckleVersion.addEnum("5.0.0", "Swashbuckle 5.0.0");
        swashbuckleVersion.addEnum("6.4.0", "Swashbuckle 6.4.0");
-        swashbuckleVersion.setDefault("3.0.0");
+        swashbuckleVersion.setDefault("6.4.0");
        swashbuckleVersion.setOptValue(swashbuckleVersion.getDefault());
        cliOptions.add(swashbuckleVersion);

@ -427,7 +429,7 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
            supportingFiles.add(new SupportingFile("typeConverter.mustache", packageFolder + File.separator + "Converters", "CustomEnumConverter.cs"));
        }

-        if (aspnetCoreVersion.getOptValue().startsWith("3.") || aspnetCoreVersion.getOptValue().startsWith("5.0") || aspnetCoreVersion.getOptValue().startsWith("6.")) {
+        if (!aspnetCoreVersion.getOptValue().startsWith("2.")) {
            supportingFiles.add(new SupportingFile("OpenApi" + File.separator + "TypeExtensions.mustache", packageFolder + File.separator + "OpenApi", "TypeExtensions.cs"));
        }

@ -681,7 +683,7 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {
    private void setAspnetCoreVersion(String packageFolder) {
        setCliOption(aspnetCoreVersion);

-        if (aspnetCoreVersion.getOptValue().startsWith("3.") || aspnetCoreVersion.getOptValue().startsWith("5.0") || aspnetCoreVersion.getOptValue().startsWith("6.")) {
+        if (!aspnetCoreVersion.getOptValue().startsWith("2.")) {
            compatibilityVersion = null;
        } else if ("2.0".equals(aspnetCoreVersion.getOptValue())) {
            compatibilityVersion = null;
@ -698,6 +700,8 @@ public class AspNetServerCodegen extends AbstractCSharpCodegen {

    private String determineTemplateVersion(String frameworkVersion) {
        switch (frameworkVersion) {
+            case "8.0":
+            case "7.0":
            case "6.0":
            case "5.0":
            case "3.1":
--- a/samples/client/echo_api/typescript-axios/build/package.json
+++ b/samples/client/echo_api/typescript-axios/build/package.json
@ -22,7 +22,7 @@
    "prepare": "npm run build"
  },
  "dependencies": {
-    "axios": "^1.6.1"
+    "axios": ""
  },
  "devDependencies": {
    "@types/node": "12.11.5 - 12.20.42",
--- a/samples/client/petstore/k6/script.js
+++ b/samples/client/petstore/k6/script.js
@ -19,10 +19,8 @@ const BASE_URL = "https://127.0.0.1/no_varaible";
 // You might want to edit the value of this variable or remove calls to the sleep function on the script.
 const SLEEP_DURATION = 0.1;
 // Global variables should be initialized.
-let globalApiKeyCookie = "TODO_EDIT_THE_GLOBAL_API_KEY_COOKIE";
 let booleanGroup = "TODO_EDIT_THE_BOOLEAN_GROUP";
 let header1 = "TODO_EDIT_THE_HEADER_1";
-let globalApiKeyHeader = "TODO_EDIT_THE_GLOBAL_API_KEY_HEADER";
 let apiKey = "TODO_EDIT_THE_API_KEY";
 let requiredBooleanGroup = "TODO_EDIT_THE_REQUIRED_BOOLEAN_GROUP";
 let enumHeaderStringArray = "TODO_EDIT_THE_ENUM_HEADER_STRING_ARRAY";
@ -43,9 +41,7 @@ export default function() {
            let body = {"enumFormStringArray": "list", "enumFormString": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/x-www-form-urlencoded", "enum_header_string_array": `${enumHeaderStringArray}`, "enum_header_string": `${enumHeaderString}`, "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/x-www-form-urlencoded", "enum_header_string_array": `${enumHeaderStringArray}`, "enum_header_string": `${enumHeaderString}`, "Accept": "application/json"
                }
            };
            let request = http.get(url, JSON.stringify(body), params);
@ -61,9 +57,7 @@ export default function() {
            let body = {"client": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.patch(url, JSON.stringify(body), params);
@ -81,9 +75,7 @@ export default function() {
            let url = BASE_URL + `/fake/outer/boolean`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "*/*"
                }
            };
            let request = http.post(url, params);
@ -103,9 +95,7 @@ export default function() {
            let body = {"client": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.patch(url, JSON.stringify(body), params);
@ -125,9 +115,7 @@ export default function() {
            let body = {"id": "long", "category": {"id": "long", "name": "string"}, "name": "string", "photoUrls": "set", "tags": "list", "status": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.put(url, JSON.stringify(body), params);
@ -146,9 +134,7 @@ export default function() {
            let body = {"id": "long", "category": {"id": "long", "name": "string"}, "name": "string", "photoUrls": "set", "tags": "list", "status": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -168,9 +154,7 @@ export default function() {
            let body = {"someProperty": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -187,14 +171,7 @@ export default function() {
        // Request No. 1: getUserByName
        {
            let url = BASE_URL + `/user/${username}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -206,15 +183,7 @@ export default function() {
        // Request No. 2: deleteUser
        {
            let url = BASE_URL + `/user/${username}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            // this is a DELETE method request - if params are also set, empty body must be passed
-            let request = http.del(url, {} , params);
+            let request = http.del(url);

        }
    });
@ -226,9 +195,7 @@ export default function() {
            let url = BASE_URL + `/fake/body-with-binary`;
            let params = {
                headers: {
-                    "Content-Type": "image/png", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "image/png", "Accept": "application/json"
                }
            };
            let request = http.put(url, params);
@ -248,9 +215,7 @@ export default function() {
            let body = {"type": "string", "nullableProperty": "string", "otherProperty": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -270,9 +235,7 @@ export default function() {
            let body = {"client": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.patch(url, JSON.stringify(body), params);
@ -290,9 +253,7 @@ export default function() {
            let url = BASE_URL + `/user/createWithList`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, params);
@ -310,9 +271,7 @@ export default function() {
            let url = BASE_URL + `/fake/inline-additionalProperties`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, params);
@ -328,14 +287,7 @@ export default function() {
        // Request No. 1: getInventory
        {
            let url = BASE_URL + `/store/inventory`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -350,14 +302,7 @@ export default function() {
        // Request No. 1: loginUser
        {
            let url = BASE_URL + `/user/login?username=${username}&password=${password}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -372,9 +317,7 @@ export default function() {
            let url = BASE_URL + `/fake/stringMap-reference`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, params);
@ -394,9 +337,7 @@ export default function() {
            let body = {"myNumber": "bigdecimal", "myString": "string", "myBoolean": "boolean"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "*/*"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -416,9 +357,7 @@ export default function() {
            let body = {"param": "string", "param2": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/x-www-form-urlencoded", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"
                }
            };
            let request = http.get(url, JSON.stringify(body), params);
@ -439,9 +378,7 @@ export default function() {
            let body = {"additionalMetadata": "string", "requiredFile": http.file(open("/path/to/file.bin", "b"), "test.bin")};
            let params = {
                headers: {
-                    "Content-Type": "multipart/form-data", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "multipart/form-data", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -458,14 +395,7 @@ export default function() {
        // Request No. 1: getPetById
        {
            let url = BASE_URL + `/pet/${petId}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -479,9 +409,7 @@ export default function() {
            let url = BASE_URL + `/pet/${petId}`;
            let params = {
                headers: {
-                    "api_key": `${apiKey}`, "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "api_key": `${apiKey}`, "Accept": "application/json"
                }
            };
            // this is a DELETE method request - if params are also set, empty body must be passed
@ -498,14 +426,7 @@ export default function() {
        // Request No. 1: 
        {
            let url = BASE_URL + `/foo`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "response": (r) => r.status === 200
@ -520,9 +441,7 @@ export default function() {
            let url = BASE_URL + `/fake/outer/string`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "*/*"
                }
            };
            let request = http.post(url, params);
@ -545,14 +464,7 @@ export default function() {
        // Request No. 1: testQueryParameterCollectionFormat
        {
            let url = BASE_URL + `/fake/test-query-parameters?pipe=${pipe}&ioutil=${ioutil}&http=${http}&url=${url}&context=${context}&language=${language}&allowEmpty=${allowEmpty}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.put(url, params);
+            let request = http.put(url);

            check(request, {
                "Success": (r) => r.status === 200
@ -566,14 +478,7 @@ export default function() {
        // Request No. 1: getOrderById
        {
            let url = BASE_URL + `/store/order/${order_id}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -585,15 +490,7 @@ export default function() {
        // Request No. 2: deleteOrder
        {
            let url = BASE_URL + `/store/order/${order_id}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            // this is a DELETE method request - if params are also set, empty body must be passed
-            let request = http.del(url, {} , params);
+            let request = http.del(url);

        }
    });
@ -605,9 +502,7 @@ export default function() {
            let url = BASE_URL + `/fake/additionalProperties-reference`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, params);
@ -624,14 +519,7 @@ export default function() {
        // Request No. 1: findPetsByStatus
        {
            let url = BASE_URL + `/pet/findByStatus?status=${status}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -649,9 +537,7 @@ export default function() {
            let body = {"id": "long", "username": "string", "firstName": "string", "lastName": "string", "email": "string", "password": "string", "phone": "string", "userStatus": "integer"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.put(url, JSON.stringify(body), params);
@ -672,9 +558,7 @@ export default function() {
            let body = {"additionalMetadata": "string", "file": http.file(open("/path/to/file.bin", "b"), "test.bin")};
            let params = {
                headers: {
-                    "Content-Type": "multipart/form-data", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "multipart/form-data", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -695,9 +579,7 @@ export default function() {
            let body = {"id": "long", "category": {"id": "long", "name": "string"}, "name": "string", "photoUrls": "set", "tags": "list", "status": "string"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "header_1": `${header1}`, "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "header_1": `${header1}`, "Accept": "application/json"
                }
            };
            let request = http.get(url, JSON.stringify(body), params);
@ -717,9 +599,7 @@ export default function() {
            let body = {"id": "long", "username": "string", "firstName": "string", "lastName": "string", "email": "string", "password": "string", "phone": "string", "userStatus": "integer"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -739,9 +619,7 @@ export default function() {
            let body = {"value": "outerenuminteger"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "*/*"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -759,9 +637,7 @@ export default function() {
            let url = BASE_URL + `/user/createWithArray`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, params);
@ -781,9 +657,7 @@ export default function() {
            let body = {"file": http.file(open("/path/to/file.bin", "b"), "test.bin"), "files": "list"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.put(url, JSON.stringify(body), params);
@ -800,14 +674,7 @@ export default function() {
        // Request No. 1: findPetsByTags
        {
            let url = BASE_URL + `/pet/findByTags?tags=${tags}`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -824,9 +691,7 @@ export default function() {
            let body = {"id": "long", "petId": "long", "quantity": "integer", "shipDate": "date", "status": "string", "complete": "boolean"};
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "application/json"
                }
            };
            let request = http.post(url, JSON.stringify(body), params);
@ -842,14 +707,7 @@ export default function() {
        // Request No. 1: logoutUser
        {
            let url = BASE_URL + `/user/logout`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -862,14 +720,7 @@ export default function() {
        // Request No. 1: fakeBigDecimalMap
        {
            let url = BASE_URL + `/fake/BigDecimalMap`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "successful operation": (r) => r.status === 200
@ -882,14 +733,7 @@ export default function() {
        // Request No. 1: 
        {
            let url = BASE_URL + `/fake/health`;
-            let params = {
-                headers: {
-                    "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "application/json"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
-                }
-            };
-            let request = http.get(url, params);
+            let request = http.get(url);

            check(request, {
                "The instance started successfully": (r) => r.status === 200
@ -904,9 +748,7 @@ export default function() {
            let url = BASE_URL + `/fake/outer/number`;
            let params = {
                headers: {
-                    "Content-Type": "application/json", "global_api_key_header": `${globalApiKeyHeader}`, "Accept": "*/*"
-                }, cookies: {
-                    "global_api_key_cookie": `${globalApiKeyCookie}`
+                    "Content-Type": "application/json", "Accept": "*/*"
                }
            };
            let request = http.post(url, params);
--- a/samples/client/petstore/typescript-axios/builds/es6-target/package.json
+++ b/samples/client/petstore/typescript-axios/builds/es6-target/package.json
@ -24,7 +24,7 @@
    "prepare": "npm run build"
  },
  "dependencies": {
-    "axios": "^1.6.1"
+    "axios": ""
  },
  "devDependencies": {
    "@types/node": "12.11.5 - 12.20.42",
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/package.json
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/package.json
@ -22,7 +22,7 @@
    "prepare": "npm run build"
  },
  "dependencies": {
-    "axios": "^1.6.1"
+    "axios": ""
  },
  "devDependencies": {
    "@types/node": "12.11.5 - 12.20.42",
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version/package.json
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version/package.json
@ -22,7 +22,7 @@
    "prepare": "npm run build"
  },
  "dependencies": {
-    "axios": "^1.6.1"
+    "axios": ""
  },
  "devDependencies": {
    "@types/node": "12.11.5 - 12.20.42",
--- a/samples/client/petstore/typescript-fetch/builds/default-v3.0/models/AllOfWithSingleRef.ts
+++ b/samples/client/petstore/typescript-fetch/builds/default-v3.0/models/AllOfWithSingleRef.ts
@ -40,8 +40,6 @@ export interface AllOfWithSingleRef {
    singleRefType?: SingleRefType;
 }

-
-
 /**
 * Check if a given object implements the AllOfWithSingleRef interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/default-v3.0/models/OuterObjectWithEnumProperty.ts
+++ b/samples/client/petstore/typescript-fetch/builds/default-v3.0/models/OuterObjectWithEnumProperty.ts
@ -34,8 +34,6 @@ export interface OuterObjectWithEnumProperty {
    value: OuterEnumInteger;
 }

-
-
 /**
 * Check if a given object implements the OuterObjectWithEnumProperty interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/enum/models/EnumPatternObject.ts
+++ b/samples/client/petstore/typescript-fetch/builds/enum/models/EnumPatternObject.ts
@ -58,8 +58,6 @@ export interface EnumPatternObject {
    nullableNumberEnum?: NumberEnum | null;
 }

-
-
 /**
 * Check if a given object implements the EnumPatternObject interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/sagas-and-records/src/models/GetBehaviorTypeResponse.ts
+++ b/samples/client/petstore/typescript-fetch/builds/sagas-and-records/src/models/GetBehaviorTypeResponse.ts
@ -46,8 +46,6 @@ export interface GetBehaviorTypeResponse {
    data?: BehaviorType;
 }

-
-
 /**
 * Check if a given object implements the GetBehaviorTypeResponse interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/sagas-and-records/src/models/GetPetPartTypeResponse.ts
+++ b/samples/client/petstore/typescript-fetch/builds/sagas-and-records/src/models/GetPetPartTypeResponse.ts
@ -46,8 +46,6 @@ export interface GetPetPartTypeResponse {
    data?: PetPartType;
 }

-
-
 /**
 * Check if a given object implements the GetPetPartTypeResponse interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/AllOfWithSingleRef.ts
+++ b/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/AllOfWithSingleRef.ts
@ -40,8 +40,6 @@ export interface AllOfWithSingleRef {
    singleRefType?: SingleRefType;
 }

-
-
 /**
 * Check if a given object implements the AllOfWithSingleRef interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/OuterObjectWithEnumProperty.ts
+++ b/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/OuterObjectWithEnumProperty.ts
@ -34,8 +34,6 @@ export interface OuterObjectWithEnumProperty {
    value: OuterEnumInteger;
 }

-
-
 /**
 * Check if a given object implements the OuterObjectWithEnumProperty interface.
 */
--- a/samples/client/petstore/typescript-fetch/builds/with-string-enums/models/EnumPatternObject.ts
+++ b/samples/client/petstore/typescript-fetch/builds/with-string-enums/models/EnumPatternObject.ts
@ -58,8 +58,6 @@ export interface EnumPatternObject {
    nullableNumberEnum?: NumberEnum | null;
 }

-
-
 /**
 * Check if a given object implements the EnumPatternObject interface.
 */
--- a/samples/server/petstore/aspnetcore-3.1/README.md
+++ b/samples/server/petstore/aspnetcore-3.1/README.md
@ -1,4 +1,4 @@
-# Org.OpenAPITools - ASP.NET Core 3.1 Server
+# Org.OpenAPITools - ASP.NET Core 8.0 Server

 This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.

--- a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Dockerfile
+++ b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Dockerfile
@ -1,13 +1,13 @@
 #See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

 # Container we use for final publish
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
+FROM mcr.microsoft.com/dotnet/core/aspnet:8.0-buster-slim AS base
 WORKDIR /app
 EXPOSE 80
 EXPOSE 443

 # Build container
-FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
+FROM mcr.microsoft.com/dotnet/core/sdk:8.0-buster AS build

 # Copy the code into the container
 WORKDIR /src
--- a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Startup.cs
+++ b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Startup.cs
@ -84,7 +84,7 @@ namespace Org.OpenAPITools
                    c.SwaggerDoc("1.0.0", new OpenApiInfo
                    {
                        Title = "OpenAPI Petstore",
-                        Description = "OpenAPI Petstore (ASP.NET Core 3.1)",
+                        Description = "OpenAPI Petstore (ASP.NET Core 8.0)",
                        TermsOfService = new Uri("https://github.com/openapitools/openapi-generator"),
                        Contact = new OpenApiContact
                        {
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator-ignore
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator-ignore
@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator/FILES
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator/FILES
@ -0,0 +1,38 @@
+Org.OpenAPITools.sln
+README.md
+build.bat
+build.sh
+src/Org.OpenAPITools/.gitignore
+src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
+src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
+src/Org.OpenAPITools/Controllers/DefaultApi.cs
+src/Org.OpenAPITools/Controllers/FakeApi.cs
+src/Org.OpenAPITools/Controllers/PetApi.cs
+src/Org.OpenAPITools/Controllers/StoreApi.cs
+src/Org.OpenAPITools/Controllers/UserApi.cs
+src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
+src/Org.OpenAPITools/Dockerfile
+src/Org.OpenAPITools/Filters/BasePathFilter.cs
+src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
+src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
+src/Org.OpenAPITools/Models/Animal.cs
+src/Org.OpenAPITools/Models/ApiResponse.cs
+src/Org.OpenAPITools/Models/Cat.cs
+src/Org.OpenAPITools/Models/Category.cs
+src/Org.OpenAPITools/Models/Dog.cs
+src/Org.OpenAPITools/Models/Order.cs
+src/Org.OpenAPITools/Models/Pet.cs
+src/Org.OpenAPITools/Models/Tag.cs
+src/Org.OpenAPITools/Models/TestEnum.cs
+src/Org.OpenAPITools/Models/TestNullable.cs
+src/Org.OpenAPITools/Models/User.cs
+src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
+src/Org.OpenAPITools/Org.OpenAPITools.csproj
+src/Org.OpenAPITools/Program.cs
+src/Org.OpenAPITools/Properties/launchSettings.json
+src/Org.OpenAPITools/Startup.cs
+src/Org.OpenAPITools/appsettings.Development.json
+src/Org.OpenAPITools/appsettings.json
+src/Org.OpenAPITools/wwwroot/README.md
+src/Org.OpenAPITools/wwwroot/index.html
+src/Org.OpenAPITools/wwwroot/openapi-original.json
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator/VERSION
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/.openapi-generator/VERSION
@ -0,0 +1 @@
+7.8.0-SNAPSHOT
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/Org.OpenAPITools.sln
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/Org.OpenAPITools.sln
@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27428.2043
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Org.OpenAPITools", "src\Org.OpenAPITools\Org.OpenAPITools.csproj", "{3C799344-F285-4669-8FD5-7ED9B795D5C5}"
+EndProject
+Global
+    GlobalSection(SolutionConfigurationPlatforms) = preSolution
+        Debug|Any CPU = Debug|Any CPU
+        Release|Any CPU = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(ProjectConfigurationPlatforms) = postSolution
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.Build.0 = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(SolutionProperties) = preSolution
+        HideSolutionNode = FALSE
+    EndGlobalSection
+EndGlobal
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/README.md
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/README.md
@ -0,0 +1,50 @@
+# Org.OpenAPITools - ASP.NET Core 8.0 Server
+
+This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+
+## Upgrade NuGet Packages
+
+NuGet packages get frequently updated.
+
+To upgrade this solution to the latest version of all NuGet packages, use the dotnet-outdated tool.
+
+
+Install dotnet-outdated tool:
+
+```
+dotnet tool install --global dotnet-outdated-tool
+```
+
+Upgrade only to new minor versions of packages
+
+```
+dotnet outdated --upgrade --version-lock Major
+```
+
+Upgrade to all new versions of packages (more likely to include breaking API changes)
+
+```
+dotnet outdated --upgrade
+```
+
+
+## Run
+
+Linux/OS X:
+
+```
+sh build.sh
+```
+
+Windows:
+
+```
+build.bat
+```
+## Run in Docker
+
+```
+cd src/Org.OpenAPITools
+docker build -t org.openapitools .
+docker run -p 5000:8080 org.openapitools
+```
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/build.bat
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/build.bat
@ -0,0 +1,9 @@
+:: Generated by: https://openapi-generator.tech
+::
+
+@echo off
+
+dotnet restore src\Org.OpenAPITools
+dotnet build src\Org.OpenAPITools
+echo Now, run the following to start the project: dotnet run -p src\Org.OpenAPITools\Org.OpenAPITools.csproj --launch-profile web.
+echo.
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/build.sh
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/build.sh
@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Generated by: https://openapi-generator.tech
+#
+
+dotnet restore src/Org.OpenAPITools/ && \
+    dotnet build src/Org.OpenAPITools/ && \
+    echo "Now, run the following to start the project: dotnet run -p src/Org.OpenAPITools/Org.OpenAPITools.csproj --launch-profile web"
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/.gitignore
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/.gitignore
@ -0,0 +1,362 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
@ -0,0 +1,69 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.ComponentModel.DataAnnotations;
+using System.Reflection;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Controllers;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+
+namespace Org.OpenAPITools.Attributes
+{
+    /// <summary>
+    /// Model state validation attribute
+    /// </summary>
+    public class ValidateModelStateAttribute : ActionFilterAttribute
+    {
+        /// <summary>
+        /// Called before the action method is invoked
+        /// </summary>
+        /// <param name="context"></param>
+        public override void OnActionExecuting(ActionExecutingContext context)
+        {
+            // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
+            {
+                foreach (var parameter in descriptor.MethodInfo.GetParameters())
+                {
+                    object args = null;
+                    if (context.ActionArguments.ContainsKey(parameter.Name))
+                    {
+                        args = context.ActionArguments[parameter.Name];
+                    }
+
+                    ValidateAttributes(parameter, args, context.ModelState);
+                }
+            }
+
+            if (!context.ModelState.IsValid)
+            {
+                context.Result = new BadRequestObjectResult(context.ModelState);
+            }
+        }
+
+        private void ValidateAttributes(ParameterInfo parameter, object args, ModelStateDictionary modelState)
+        {
+            foreach (var attributeData in parameter.CustomAttributes)
+            {
+                var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
+
+                if (attributeInstance is ValidationAttribute validationAttribute)
+                {
+                    var isValid = validationAttribute.IsValid(args);
+                    if (!isValid)
+                    {
+                        modelState.AddModelError(parameter.Name, validationAttribute.FormatErrorMessage(parameter.Name));
+                    }
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
@ -0,0 +1,72 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace Org.OpenAPITools.Authentication
+{
+    /// <summary>
+    /// A requirement that an ApiKey must be present.
+    /// </summary>
+    public class ApiKeyRequirement : IAuthorizationRequirement
+    {
+        /// <summary>
+        /// Get the list of api keys
+        /// </summary>
+        public IReadOnlyList<string> ApiKeys { get; }
+
+        /// <summary>
+        /// Get the policy name,
+        /// </summary>
+        public string PolicyName { get; }
+
+        /// <summary>
+        /// Create a new instance of the <see cref="ApiKeyRequirement"/> class.
+        /// </summary>
+        /// <param name="apiKeys"></param>
+        /// <param name="policyName"></param>
+        public ApiKeyRequirement(IEnumerable<string> apiKeys, string policyName)
+        {
+            ApiKeys = apiKeys?.ToList() ?? new List<string>();
+            PolicyName = policyName;
+        }
+    }
+
+    /// <summary>
+    /// Enforce that an api key is present.
+    /// </summary>
+    public class ApiKeyRequirementHandler : AuthorizationHandler<ApiKeyRequirement>
+    {
+        /// <copydoc cref="AuthorizationHandler{T}.HandleRequirementAsync" />
+        protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, ApiKeyRequirement requirement)
+        {
+            SucceedRequirementIfApiKeyPresentAndValid(context, requirement);
+            return Task.CompletedTask;
+        }
+
+        private void SucceedRequirementIfApiKeyPresentAndValid(AuthorizationHandlerContext context, ApiKeyRequirement requirement)
+        {
+
+            if (context.Resource is AuthorizationFilterContext authorizationFilterContext)
+            {
+                var apiKey = authorizationFilterContext.HttpContext.Request.Headers["api_key"].FirstOrDefault();
+                if (requirement.PolicyName == "api_key" && apiKey != null && requirement.ApiKeys.Any(requiredApiKey => apiKey == requiredApiKey))
+                {
+                    context.Succeed(requirement);
+                }
+            }
+
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/DefaultApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/DefaultApi.cs
@ -0,0 +1,49 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using System.Text.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class DefaultApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Test API
+        /// </summary>
+        /// <param name="testQuery"></param>
+        /// <response code="200">OK</response>
+        [HttpGet]
+        [Route("/v2/test")]
+        [ValidateModelState]
+        [SwaggerOperation("TestGet")]
+        public virtual IActionResult TestGet([FromQuery (Name = "testQuery")]TestEnum? testQuery)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/FakeApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/FakeApi.cs
@ -0,0 +1,73 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using System.Text.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class FakeApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Fake endpoint to test nullable example (object)
+        /// </summary>
+        /// <response code="200">Successful operation</response>
+        [HttpGet]
+        [Route("/v2/fake/nullable_example_test")]
+        [ValidateModelState]
+        [SwaggerOperation("FakeNullableExampleTest")]
+        [SwaggerResponse(statusCode: 200, type: typeof(TestNullable), description: "Successful operation")]
+        public virtual IActionResult FakeNullableExampleTest()
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(TestNullable));
+            string exampleJson = null;
+            exampleJson = "{\n  \"nullableName\" : \"nullableName\",\n  \"name\" : \"name\"\n}";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<TestNullable>(exampleJson)
+            : default(TestNullable);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// fake endpoint to test parameter example (object)
+        /// </summary>
+        /// <param name="data"></param>
+        /// <response code="0">successful operation</response>
+        [HttpGet]
+        [Route("/v2/fake/parameter_example_test")]
+        [ValidateModelState]
+        [SwaggerOperation("FakeParameterExampleTest")]
+        public virtual IActionResult FakeParameterExampleTest([FromQuery (Name = "data")][Required()]Pet data)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/PetApi.cs
@ -0,0 +1,260 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using System.Text.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class PetApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="405">Invalid input</response>
+        [HttpPost]
+        [Route("/v2/pet")]
+        [Consumes("application/json", "application/xml")]
+        [ValidateModelState]
+        [SwaggerOperation("AddPet")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult AddPet([FromBody]Pet pet)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"></param>
+        /// <response code="400">Invalid pet value</response>
+        [HttpDelete]
+        [Route("/v2/pet/{petId}")]
+        [ValidateModelState]
+        [SwaggerOperation("DeletePet")]
+        public virtual IActionResult DeletePet([FromRoute (Name = "petId")][Required]long petId, [FromHeader (Name = "api_key")]string apiKey)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>Multiple status values can be provided with comma separated strings</remarks>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid status value</response>
+        [HttpGet]
+        [Route("/v2/pet/findByStatus")]
+        [ValidateModelState]
+        [SwaggerOperation("FindPetsByStatus")]
+        [SwaggerResponse(statusCode: 200, type: typeof(List<Pet>), description: "successful operation")]
+        public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Required()]List<string> status)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(List<Pet>));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<List<Pet>>(exampleJson)
+            : default(List<Pet>);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.</remarks>
+        /// <param name="tags">Tags to filter by</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid tag value</response>
+        [HttpGet]
+        [Route("/v2/pet/findByTags")]
+        [ValidateModelState]
+        [SwaggerOperation("FindPetsByTags")]
+        [SwaggerResponse(statusCode: 200, type: typeof(List<Pet>), description: "successful operation")]
+        [Obsolete]
+        public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required()]List<string> tags)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(List<Pet>));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<List<Pet>>(exampleJson)
+            : default(List<Pet>);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>Returns a single pet</remarks>
+        /// <param name="petId">ID of pet to return</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Pet not found</response>
+        [HttpGet]
+        [Route("/v2/pet/{petId}")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("GetPetById")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]long petId)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Pet not found</response>
+        /// <response code="405">Validation exception</response>
+        [HttpPut]
+        [Route("/v2/pet")]
+        [Consumes("application/json", "application/xml")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdatePet")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult UpdatePet([FromBody]Pet pet)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet</param>
+        /// <param name="status">Updated status of the pet</param>
+        /// <response code="405">Invalid input</response>
+        [HttpPost]
+        [Route("/v2/pet/{petId}")]
+        [Consumes("application/x-www-form-urlencoded")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdatePetWithForm")]
+        public virtual IActionResult UpdatePetWithForm([FromRoute (Name = "petId")][Required]long petId, [FromForm (Name = "name")]string name, [FromForm (Name = "status")]string status)
+        {
+
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server</param>
+        /// <param name="file">file to upload</param>
+        /// <response code="200">successful operation</response>
+        [HttpPost]
+        [Route("/v2/pet/{petId}/uploadImage")]
+        [Consumes("multipart/form-data")]
+        [ValidateModelState]
+        [SwaggerOperation("UploadFile")]
+        [SwaggerResponse(statusCode: 200, type: typeof(ApiResponse), description: "successful operation")]
+        public virtual IActionResult UploadFile([FromRoute (Name = "petId")][Required]long petId, [FromForm (Name = "additionalMetadata")]string additionalMetadata, IFormFile file)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(ApiResponse));
+            string exampleJson = null;
+            exampleJson = "{\n  \"code\" : 0,\n  \"type\" : \"type\",\n  \"message\" : \"message\"\n}";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<ApiResponse>(exampleJson)
+            : default(ApiResponse);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/StoreApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/StoreApi.cs
@ -0,0 +1,141 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using System.Text.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class StoreApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors</remarks>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Order not found</response>
+        [HttpDelete]
+        [Route("/v2/store/order/{orderId}")]
+        [ValidateModelState]
+        [SwaggerOperation("DeleteOrder")]
+        public virtual IActionResult DeleteOrder([FromRoute (Name = "orderId")][Required]string orderId)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>Returns a map of status codes to quantities</remarks>
+        /// <response code="200">successful operation</response>
+        [HttpGet]
+        [Route("/v2/store/inventory")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("GetInventory")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Dictionary<string, int>), description: "successful operation")]
+        public virtual IActionResult GetInventory()
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Dictionary<string, int>));
+            string exampleJson = null;
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Dictionary<string, int>>(exampleJson)
+            : new Dictionary<string, int>();
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions</remarks>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Order not found</response>
+        [HttpGet]
+        [Route("/v2/store/order/{orderId}")]
+        [ValidateModelState]
+        [SwaggerOperation("GetOrderById")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Order), description: "successful operation")]
+        public virtual IActionResult GetOrderById([FromRoute (Name = "orderId")][Required][Range(1, 5)]long orderId)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Order));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"petId\" : 6,\n  \"quantity\" : 1,\n  \"id\" : 0,\n  \"shipDate\" : \"2000-01-23T04:56:07.000+00:00\",\n  \"complete\" : false,\n  \"status\" : \"placed\"\n}";
+            exampleJson = "<Order>\n  <id>123456789</id>\n  <petId>123456789</petId>\n  <quantity>123</quantity>\n  <shipDate>2000-01-23T04:56:07.000Z</shipDate>\n  <status>aeiou</status>\n  <complete>true</complete>\n</Order>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Order>(exampleJson)
+            : default(Order);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid Order</response>
+        [HttpPost]
+        [Route("/v2/store/order")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("PlaceOrder")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Order), description: "successful operation")]
+        public virtual IActionResult PlaceOrder([FromBody]Order order)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Order));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "{\n  \"petId\" : 6,\n  \"quantity\" : 1,\n  \"id\" : 0,\n  \"shipDate\" : \"2000-01-23T04:56:07.000+00:00\",\n  \"complete\" : false,\n  \"status\" : \"placed\"\n}";
+            exampleJson = "<Order>\n  <id>123456789</id>\n  <petId>123456789</petId>\n  <quantity>123</quantity>\n  <shipDate>2000-01-23T04:56:07.000Z</shipDate>\n  <status>aeiou</status>\n  <complete>true</complete>\n</Order>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<Order>(exampleJson)
+            : default(Order);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/UserApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Controllers/UserApi.cs
@ -0,0 +1,218 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using System.Text.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class UserApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="user">Created user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUser")]
+        public virtual IActionResult CreateUser([FromBody]User user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <param name="user">List of user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user/createWithArray")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUsersWithArrayInput")]
+        public virtual IActionResult CreateUsersWithArrayInput([FromBody]List<User> user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <param name="user">List of user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user/createWithList")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUsersWithListInput")]
+        public virtual IActionResult CreateUsersWithListInput([FromBody]List<User> user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <response code="400">Invalid username supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpDelete]
+        [Route("/v2/user/{username}")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("DeleteUser")]
+        public virtual IActionResult DeleteUser([FromRoute (Name = "username")][Required]string username)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid username supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpGet]
+        [Route("/v2/user/{username}")]
+        [ValidateModelState]
+        [SwaggerOperation("GetUserByName")]
+        [SwaggerResponse(statusCode: 200, type: typeof(User), description: "successful operation")]
+        public virtual IActionResult GetUserByName([FromRoute (Name = "username")][Required]string username)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(User));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"firstName\" : \"firstName\",\n  \"lastName\" : \"lastName\",\n  \"password\" : \"password\",\n  \"userStatus\" : 6,\n  \"phone\" : \"phone\",\n  \"id\" : 0,\n  \"email\" : \"email\",\n  \"username\" : \"username\"\n}";
+            exampleJson = "<User>\n  <id>123456789</id>\n  <username>aeiou</username>\n  <firstName>aeiou</firstName>\n  <lastName>aeiou</lastName>\n  <email>aeiou</email>\n  <password>aeiou</password>\n  <phone>aeiou</phone>\n  <userStatus>123</userStatus>\n</User>";
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<User>(exampleJson)
+            : default(User);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid username/password supplied</response>
+        [HttpGet]
+        [Route("/v2/user/login")]
+        [ValidateModelState]
+        [SwaggerOperation("LoginUser")]
+        [SwaggerResponse(statusCode: 200, type: typeof(string), description: "successful operation")]
+        public virtual IActionResult LoginUser([FromQuery (Name = "username")][Required()][RegularExpression("^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$")]string username, [FromQuery (Name = "password")][Required()]string password)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(string));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            
+            var example = exampleJson != null
+            ? JsonSerializer.Deserialize<string>(exampleJson)
+            : default(string);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <response code="0">successful operation</response>
+        [HttpGet]
+        [Route("/v2/user/logout")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("LogoutUser")]
+        public virtual IActionResult LogoutUser()
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <response code="400">Invalid user supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpPut]
+        [Route("/v2/user/{username}")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdateUser")]
+        public virtual IActionResult UpdateUser([FromRoute (Name = "username")][Required]string username, [FromBody]User user)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
@ -0,0 +1,52 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Text.Json;
+
+namespace Org.OpenAPITools.Converters
+{
+    /// <summary>
+    /// Custom string to enum converter
+    /// </summary>
+    public class CustomEnumConverter<T> : TypeConverter
+    {
+        /// <summary>
+        /// Determine if we can convert a type to an enum
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="sourceType"></param>
+        /// <returns></returns>
+        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+        {
+            return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);
+        }
+
+        /// <summary>
+        /// Convert from a type value to an enum
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="culture"></param>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+        {
+            var s = value as string;
+            if (string.IsNullOrEmpty(s))
+            {
+                return null;
+            }
+
+            return JsonSerializer.Deserialize<T>(@"""" + value + @"""");
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Dockerfile
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Dockerfile
@ -0,0 +1,32 @@
+#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+# Container we use for final publish
+FROM mcr.microsoft.com/dotnet/core/aspnet:8.0-buster-slim AS base
+WORKDIR /app
+EXPOSE 80
+EXPOSE 443
+
+# Build container
+FROM mcr.microsoft.com/dotnet/core/sdk:8.0-buster AS build
+
+# Copy the code into the container
+WORKDIR /src
+COPY ["src/Org.OpenAPITools/Org.OpenAPITools.csproj", "Org.OpenAPITools/"]
+
+# NuGet restore
+RUN dotnet restore "Org.OpenAPITools/Org.OpenAPITools.csproj"
+COPY ["src/Org.OpenAPITools/", "Org.OpenAPITools/"]
+
+# Build the API
+WORKDIR "Org.OpenAPITools"
+RUN dotnet build "Org.OpenAPITools.csproj" -c Release -o /app/build
+
+# Publish it
+FROM build AS publish
+RUN dotnet publish "Org.OpenAPITools.csproj" -c Release -o /app/publish
+
+# Make the final image for publishing
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "Org.OpenAPITools.dll"]
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Filters/BasePathFilter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Filters/BasePathFilter.cs
@ -0,0 +1,60 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.Linq;
+using System.Text.RegularExpressions;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace Org.OpenAPITools.Filters
+{
+    /// <summary>
+    /// BasePath Document Filter sets BasePath property of OpenAPI and removes it from the individual URL paths
+    /// </summary>
+    public class BasePathFilter : IDocumentFilter
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="basePath">BasePath to remove from Operations</param>
+        public BasePathFilter(string basePath)
+        {
+            BasePath = basePath;
+        }
+
+        /// <summary>
+        /// Gets the BasePath of the OpenAPI Doc
+        /// </summary>
+        /// <returns>The BasePath of the OpenAPI Doc</returns>
+        public string BasePath { get; }
+
+        /// <summary>
+        /// Apply the filter
+        /// </summary>
+        /// <param name="openapiDoc">OpenApiDocument</param>
+        /// <param name="context">FilterContext</param>
+        public void Apply(OpenApiDocument openapiDoc, DocumentFilterContext context)
+        {
+            //openapiDoc.BasePath = BasePath;
+
+            var pathsToModify = openapiDoc.Paths.Where(p => p.Key.StartsWith(BasePath)).ToList();
+
+            foreach (var (key, value) in pathsToModify)
+            {
+                if (key.StartsWith(BasePath))
+                {
+                    var newKey = Regex.Replace(key, $"^{BasePath}", string.Empty);
+                    openapiDoc.Paths.Remove(key);
+                    openapiDoc.Paths.Add(newKey, value);
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
@ -0,0 +1,107 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using Microsoft.AspNetCore.Mvc.Controllers;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace Org.OpenAPITools.Filters
+{
+    /// <summary>
+    /// Path Parameter Validation Rules Filter
+    /// </summary>
+    public class GeneratePathParamsValidationFilter : IOperationFilter
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="operation">Operation</param>
+        /// <param name="context">OperationFilterContext</param>
+        public void Apply(OpenApiOperation operation, OperationFilterContext context)
+        {
+            var pars = context.ApiDescription.ParameterDescriptions;
+
+            foreach (var par in pars)
+            {
+                var openapiParam = operation.Parameters.SingleOrDefault(p => p.Name == par.Name);
+
+                var attributes = ((ControllerParameterDescriptor)par.ParameterDescriptor).ParameterInfo.CustomAttributes.ToList();
+
+                // See https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/1147
+                // and https://mikeralphson.github.io/openapi/2017/03/15/openapi3.0.0-rc0
+                // Basically OpenAPI v3 body parameters are split out into RequestBody and the properties have moved to schema
+                if (attributes.Any() && openapiParam != null)
+                {
+                    // Required - [Required]
+                    var requiredAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RequiredAttribute));
+                    if (requiredAttr != null)
+                    {
+                        openapiParam.Required = true;
+                    }
+
+                    // Regex Pattern [RegularExpression]
+                    var regexAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RegularExpressionAttribute));
+                    if (regexAttr != null)
+                    {
+                        var regex = (string)regexAttr.ConstructorArguments[0].Value;
+                        openapiParam.Schema.Pattern = regex;
+                    }
+
+                    // String Length [StringLength]
+                    int? minLength = null, maxLength = null;
+                    var stringLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(StringLengthAttribute));
+                    if (stringLengthAttr != null)
+                    {
+                        if (stringLengthAttr.NamedArguments.Count == 1)
+                        {
+                            minLength = (int)stringLengthAttr.NamedArguments.Single(p => p.MemberName == "MinimumLength").TypedValue.Value;
+                        }
+                        maxLength = (int)stringLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    var minLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(MinLengthAttribute));
+                    if (minLengthAttr != null)
+                    {
+                        minLength = (int)minLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    var maxLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(MaxLengthAttribute));
+                    if (maxLengthAttr != null)
+                    {
+                        maxLength = (int)maxLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    if (minLength != null)
+                    {
+                        openapiParam.Schema.MinLength = minLength;
+                    }
+
+                    if (maxLength != null)
+                    {
+                        openapiParam.Schema.MaxLength = maxLength;
+                    }
+
+                    // Range [Range]
+                    var rangeAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RangeAttribute));
+                    if (rangeAttr != null)
+                    {
+                        var rangeMin = (int)rangeAttr.ConstructorArguments[0].Value;
+                        var rangeMax = (int)rangeAttr.ConstructorArguments[1].Value;
+
+                        openapiParam.Schema.MinLength = rangeMin;
+                        openapiParam.Schema.MaxLength = rangeMax;
+                    }
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
@ -0,0 +1,45 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc.Formatters;
+
+namespace Org.OpenAPITools.Formatters
+{
+    /// <inheritdoc />
+    public class InputFormatterStream : InputFormatter
+    {
+        /// <inheritdoc />
+        public InputFormatterStream()
+        {
+            SupportedMediaTypes.Add("application/octet-stream");
+            SupportedMediaTypes.Add("image/jpeg");
+        }
+
+        /// <inheritdoc />
+        public override Task<InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context)
+        {
+            return InputFormatterResult.SuccessAsync(context.HttpContext.Request.Body);
+        }
+
+        /// <inheritdoc />
+        protected override bool CanReadType(Type type)
+        {
+            if (type == typeof(Stream))
+            {
+                return true;
+            }
+
+            return false;
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Animal.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Animal.cs
@ -0,0 +1,146 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using JsonSubTypes;
+using Swashbuckle.AspNetCore.Annotations;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    [SwaggerDiscriminator("ClassName")]
+    [JsonSubtypes.KnownSubType(typeof(Cat), "CAT")]
+    [SwaggerSubType(typeof(Cat), DiscriminatorValue =  "CAT")]
+    [JsonSubtypes.KnownSubType(typeof(Dog), "DOG")]
+    [SwaggerSubType(typeof(Dog), DiscriminatorValue =  "DOG")]
+    public partial class Animal : IEquatable<Animal>
+    {
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [Required]
+        [DataMember(Name="className", EmitDefaultValue=false)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Color
+        /// </summary>
+        [DataMember(Name="color", EmitDefaultValue=false)]
+        public string Color { get; set; } = "red";
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Animal {\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  Color: ").Append(Color).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Animal)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Animal instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Animal to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Animal other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    ClassName == other.ClassName ||
+                    ClassName != null &&
+                    ClassName.Equals(other.ClassName)
+                ) && 
+                (
+                    Color == other.Color ||
+                    Color != null &&
+                    Color.Equals(other.Color)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (ClassName != null)
+                    hashCode = hashCode * 59 + ClassName.GetHashCode();
+                    if (Color != null)
+                    hashCode = hashCode * 59 + Color.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Animal left, Animal right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Animal left, Animal right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/ApiResponse.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/ApiResponse.cs
@ -0,0 +1,152 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// Describes the result of uploading an image resource
+    /// </summary>
+    [DataContract]
+    public partial class ApiResponse : IEquatable<ApiResponse>
+    {
+        /// <summary>
+        /// Gets or Sets Code
+        /// </summary>
+        [DataMember(Name="code", EmitDefaultValue=true)]
+        public int Code { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Type
+        /// </summary>
+        [DataMember(Name="type", EmitDefaultValue=false)]
+        public string Type { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Message
+        /// </summary>
+        [DataMember(Name="message", EmitDefaultValue=false)]
+        public string Message { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class ApiResponse {\n");
+            sb.Append("  Code: ").Append(Code).Append("\n");
+            sb.Append("  Type: ").Append(Type).Append("\n");
+            sb.Append("  Message: ").Append(Message).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((ApiResponse)obj);
+        }
+
+        /// <summary>
+        /// Returns true if ApiResponse instances are equal
+        /// </summary>
+        /// <param name="other">Instance of ApiResponse to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ApiResponse other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Code == other.Code ||
+                    
+                    Code.Equals(other.Code)
+                ) && 
+                (
+                    Type == other.Type ||
+                    Type != null &&
+                    Type.Equals(other.Type)
+                ) && 
+                (
+                    Message == other.Message ||
+                    Message != null &&
+                    Message.Equals(other.Message)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Code.GetHashCode();
+                    if (Type != null)
+                    hashCode = hashCode * 59 + Type.GetHashCode();
+                    if (Message != null)
+                    hashCode = hashCode * 59 + Message.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(ApiResponse left, ApiResponse right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(ApiResponse left, ApiResponse right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Cat.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Cat.cs
@ -0,0 +1,124 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class Cat : Animal, IEquatable<Cat>
+    {
+        /// <summary>
+        /// Gets or Sets Declawed
+        /// </summary>
+        [DataMember(Name="declawed", EmitDefaultValue=true)]
+        public bool Declawed { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Cat {\n");
+            sb.Append("  Declawed: ").Append(Declawed).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public new string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Cat)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Cat instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Cat to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Cat other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Declawed == other.Declawed ||
+                    
+                    Declawed.Equals(other.Declawed)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Declawed.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Cat left, Cat right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Cat left, Cat right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Category.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Category.cs
@ -0,0 +1,139 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A category for a pet
+    /// </summary>
+    [DataContract]
+    public partial class Category : IEquatable<Category>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [RegularExpression("^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$")]
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Category {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Category)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Category instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Category to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Category other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Category left, Category right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Category left, Category right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Dog.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Dog.cs
@ -0,0 +1,124 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class Dog : Animal, IEquatable<Dog>
+    {
+        /// <summary>
+        /// Gets or Sets Breed
+        /// </summary>
+        [DataMember(Name="breed", EmitDefaultValue=false)]
+        public string Breed { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Dog {\n");
+            sb.Append("  Breed: ").Append(Breed).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public new string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Dog)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Dog instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Dog to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Dog other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Breed == other.Breed ||
+                    Breed != null &&
+                    Breed.Equals(other.Breed)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (Breed != null)
+                    hashCode = hashCode * 59 + Breed.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Dog left, Dog right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Dog left, Dog right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Order.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Order.cs
@ -0,0 +1,223 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// An order for a pets from the pet store
+    /// </summary>
+    [DataContract]
+    public partial class Order : IEquatable<Order>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PetId
+        /// </summary>
+        [DataMember(Name="petId", EmitDefaultValue=true)]
+        public long PetId { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Quantity
+        /// </summary>
+        [DataMember(Name="quantity", EmitDefaultValue=true)]
+        public int Quantity { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ShipDate
+        /// </summary>
+        [DataMember(Name="shipDate", EmitDefaultValue=true)]
+        public DateTime ShipDate { get; set; }
+
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        
+        public enum StatusEnum
+        {
+            
+            /// <summary>
+            /// Enum PlacedEnum for placed
+            /// </summary>
+            [EnumMember(Value = "placed")]
+            PlacedEnum = 1,
+            
+            /// <summary>
+            /// Enum ApprovedEnum for approved
+            /// </summary>
+            [EnumMember(Value = "approved")]
+            ApprovedEnum = 2,
+            
+            /// <summary>
+            /// Enum DeliveredEnum for delivered
+            /// </summary>
+            [EnumMember(Value = "delivered")]
+            DeliveredEnum = 3
+        }
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [DataMember(Name="status", EmitDefaultValue=true)]
+        public StatusEnum Status { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Complete
+        /// </summary>
+        [DataMember(Name="complete", EmitDefaultValue=true)]
+        public bool Complete { get; set; } = false;
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Order {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  PetId: ").Append(PetId).Append("\n");
+            sb.Append("  Quantity: ").Append(Quantity).Append("\n");
+            sb.Append("  ShipDate: ").Append(ShipDate).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("  Complete: ").Append(Complete).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Order)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Order instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Order to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Order other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    PetId == other.PetId ||
+                    
+                    PetId.Equals(other.PetId)
+                ) && 
+                (
+                    Quantity == other.Quantity ||
+                    
+                    Quantity.Equals(other.Quantity)
+                ) && 
+                (
+                    ShipDate == other.ShipDate ||
+                    
+                    ShipDate.Equals(other.ShipDate)
+                ) && 
+                (
+                    Status == other.Status ||
+                    
+                    Status.Equals(other.Status)
+                ) && 
+                (
+                    Complete == other.Complete ||
+                    
+                    Complete.Equals(other.Complete)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + PetId.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Quantity.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + ShipDate.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Status.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Complete.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Order left, Order right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Order left, Order right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Pet.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Pet.cs
@ -0,0 +1,228 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A pet for sale in the pet store
+    /// </summary>
+    [DataContract]
+    public partial class Pet : IEquatable<Pet>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Category
+        /// </summary>
+        [DataMember(Name="category", EmitDefaultValue=false)]
+        public Category Category { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        /// <example>doggie</example>
+        [Required]
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PhotoUrls
+        /// </summary>
+        [Required]
+        [DataMember(Name="photoUrls", EmitDefaultValue=false)]
+        public List<string> PhotoUrls { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Tags
+        /// </summary>
+        [DataMember(Name="tags", EmitDefaultValue=false)]
+        public List<Tag> Tags { get; set; }
+
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        
+        public enum StatusEnum
+        {
+            
+            /// <summary>
+            /// Enum AvailableEnum for available
+            /// </summary>
+            [EnumMember(Value = "available")]
+            AvailableEnum = 1,
+            
+            /// <summary>
+            /// Enum PendingEnum for pending
+            /// </summary>
+            [EnumMember(Value = "pending")]
+            PendingEnum = 2,
+            
+            /// <summary>
+            /// Enum SoldEnum for sold
+            /// </summary>
+            [EnumMember(Value = "sold")]
+            SoldEnum = 3
+        }
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [DataMember(Name="status", EmitDefaultValue=true)]
+        public StatusEnum Status { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Pet {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Category: ").Append(Category).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  PhotoUrls: ").Append(PhotoUrls).Append("\n");
+            sb.Append("  Tags: ").Append(Tags).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Pet)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Pet instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Pet to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Pet other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Category == other.Category ||
+                    Category != null &&
+                    Category.Equals(other.Category)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                ) && 
+                (
+                    PhotoUrls == other.PhotoUrls ||
+                    PhotoUrls != null &&
+                    other.PhotoUrls != null &&
+                    PhotoUrls.SequenceEqual(other.PhotoUrls)
+                ) && 
+                (
+                    Tags == other.Tags ||
+                    Tags != null &&
+                    other.Tags != null &&
+                    Tags.SequenceEqual(other.Tags)
+                ) && 
+                (
+                    Status == other.Status ||
+                    
+                    Status.Equals(other.Status)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Category != null)
+                    hashCode = hashCode * 59 + Category.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                    if (PhotoUrls != null)
+                    hashCode = hashCode * 59 + PhotoUrls.GetHashCode();
+                    if (Tags != null)
+                    hashCode = hashCode * 59 + Tags.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Status.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Pet left, Pet right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Pet left, Pet right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Tag.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/Tag.cs
@ -0,0 +1,138 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A tag for a pet
+    /// </summary>
+    [DataContract]
+    public partial class Tag : IEquatable<Tag>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Tag {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Tag)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Tag instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Tag to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Tag other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Tag left, Tag right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Tag left, Tag right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/TestEnum.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/TestEnum.cs
@ -0,0 +1,42 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+        /// <summary>
+        /// Gets or Sets TestEnum
+        /// </summary>
+        
+        public enum TestEnum
+        {
+            
+            /// <summary>
+            /// Enum AEnum for A
+            /// </summary>
+            [EnumMember(Value = "A")]
+            AEnum = 1,
+            
+            /// <summary>
+            /// Enum BEnum for B
+            /// </summary>
+            [EnumMember(Value = "B")]
+            BEnum = 2
+        }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/TestNullable.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/TestNullable.cs
@ -0,0 +1,138 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class TestNullable : IEquatable<TestNullable>
+    {
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NullableName
+        /// </summary>
+        [DataMember(Name="nullableName", EmitDefaultValue=true)]
+        public string NullableName { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class TestNullable {\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  NullableName: ").Append(NullableName).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((TestNullable)obj);
+        }
+
+        /// <summary>
+        /// Returns true if TestNullable instances are equal
+        /// </summary>
+        /// <param name="other">Instance of TestNullable to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TestNullable other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                ) && 
+                (
+                    NullableName == other.NullableName ||
+                    NullableName != null &&
+                    NullableName.Equals(other.NullableName)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                    if (NullableName != null)
+                    hashCode = hashCode * 59 + NullableName.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(TestNullable left, TestNullable right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(TestNullable left, TestNullable right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/User.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Models/User.cs
@ -0,0 +1,223 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A User who is purchasing from the pet store
+    /// </summary>
+    [DataContract]
+    public partial class User : IEquatable<User>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Username
+        /// </summary>
+        [DataMember(Name="username", EmitDefaultValue=false)]
+        public string Username { get; set; }
+
+        /// <summary>
+        /// Gets or Sets FirstName
+        /// </summary>
+        [DataMember(Name="firstName", EmitDefaultValue=false)]
+        public string FirstName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets LastName
+        /// </summary>
+        [DataMember(Name="lastName", EmitDefaultValue=false)]
+        public string LastName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Email
+        /// </summary>
+        [DataMember(Name="email", EmitDefaultValue=false)]
+        public string Email { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Password
+        /// </summary>
+        [DataMember(Name="password", EmitDefaultValue=false)]
+        public string Password { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Phone
+        /// </summary>
+        [DataMember(Name="phone", EmitDefaultValue=false)]
+        public string Phone { get; set; }
+
+        /// <summary>
+        /// User Status
+        /// </summary>
+        /// <value>User Status</value>
+        [DataMember(Name="userStatus", EmitDefaultValue=true)]
+        public int UserStatus { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class User {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Username: ").Append(Username).Append("\n");
+            sb.Append("  FirstName: ").Append(FirstName).Append("\n");
+            sb.Append("  LastName: ").Append(LastName).Append("\n");
+            sb.Append("  Email: ").Append(Email).Append("\n");
+            sb.Append("  Password: ").Append(Password).Append("\n");
+            sb.Append("  Phone: ").Append(Phone).Append("\n");
+            sb.Append("  UserStatus: ").Append(UserStatus).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((User)obj);
+        }
+
+        /// <summary>
+        /// Returns true if User instances are equal
+        /// </summary>
+        /// <param name="other">Instance of User to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(User other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Username == other.Username ||
+                    Username != null &&
+                    Username.Equals(other.Username)
+                ) && 
+                (
+                    FirstName == other.FirstName ||
+                    FirstName != null &&
+                    FirstName.Equals(other.FirstName)
+                ) && 
+                (
+                    LastName == other.LastName ||
+                    LastName != null &&
+                    LastName.Equals(other.LastName)
+                ) && 
+                (
+                    Email == other.Email ||
+                    Email != null &&
+                    Email.Equals(other.Email)
+                ) && 
+                (
+                    Password == other.Password ||
+                    Password != null &&
+                    Password.Equals(other.Password)
+                ) && 
+                (
+                    Phone == other.Phone ||
+                    Phone != null &&
+                    Phone.Equals(other.Phone)
+                ) && 
+                (
+                    UserStatus == other.UserStatus ||
+                    
+                    UserStatus.Equals(other.UserStatus)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Username != null)
+                    hashCode = hashCode * 59 + Username.GetHashCode();
+                    if (FirstName != null)
+                    hashCode = hashCode * 59 + FirstName.GetHashCode();
+                    if (LastName != null)
+                    hashCode = hashCode * 59 + LastName.GetHashCode();
+                    if (Email != null)
+                    hashCode = hashCode * 59 + Email.GetHashCode();
+                    if (Password != null)
+                    hashCode = hashCode * 59 + Password.GetHashCode();
+                    if (Phone != null)
+                    hashCode = hashCode * 59 + Phone.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + UserStatus.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(User left, User right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(User left, User right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
@ -0,0 +1,61 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+
+namespace Org.OpenAPITools.OpenApi
+{
+    /// <summary>
+    /// Replacement utilities from Swashbuckle.AspNetCore.SwaggerGen which are not in 5.x
+    /// </summary>
+    public static class TypeExtensions
+    {
+        /// <summary>
+        /// Produce a friendly name for the type which is unique.
+        /// </summary>
+        /// <param name="type"></param>
+        /// <param name="fullyQualified"></param>
+        public static string FriendlyId(this Type type, bool fullyQualified = false)
+        {
+            var typeName = fullyQualified
+                ? type.FullNameSansTypeParameters().Replace("+", ".")
+                : type.Name;
+
+            if (type.IsGenericType)
+            {
+                var genericArgumentIds = type.GetGenericArguments()
+                    .Select(t => t.FriendlyId(fullyQualified))
+                    .ToArray();
+
+                return new StringBuilder(typeName)
+                    .Replace($"`{genericArgumentIds.Count()}", string.Empty)
+                    .Append($"[{string.Join(",", genericArgumentIds).TrimEnd(',')}]")
+                    .ToString();
+            }
+
+            return typeName;
+        }
+
+        /// <summary>
+        /// Determine the fully qualified type name without type parameters.
+        /// </summary>
+        /// <param name="type"></param>
+        public static string FullNameSansTypeParameters(this Type type)
+        {
+            var fullName = type.FullName;
+            if (string.IsNullOrEmpty(fullName))
+                fullName = type.Name;
+            var chopIndex = fullName.IndexOf("[[", StringComparison.Ordinal);
+            return (chopIndex == -1) ? fullName : fullName.Substring(0, chopIndex);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Org.OpenAPITools.csproj
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Org.OpenAPITools.csproj
@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <Description>A library generated from a OpenAPI doc</Description>
+    <Copyright>No Copyright</Copyright>
+    <Authors>OpenAPI</Authors>
+    <TargetFramework>net8.0</TargetFramework>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <PreserveCompilationContext>true</PreserveCompilationContext>
+    <Version>1.0.0</Version>
+    <AssemblyName>Org.OpenAPITools</AssemblyName>
+    <PackageId>Org.OpenAPITools</PackageId>
+    <UserSecretsId>cb87e868-8646-48ef-9bb6-344b537d0d37</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    <DockerfileContext>..\..</DockerfileContext>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0"/>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.10.8" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0"/>
+    <PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="6.4.0" />
+    <PackageReference Include="JsonSubTypes" Version="1.8.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <!--<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.0" />-->
+  </ItemGroup>
+</Project>
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Program.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Program.cs
@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace Org.OpenAPITools
+{
+    /// <summary>
+    /// Program
+    /// </summary>
+    public class Program
+    {
+        /// <summary>
+        /// Main
+        /// </summary>
+        /// <param name="args"></param>
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        /// <summary>
+        /// Create the host builder.
+        /// </summary>
+        /// <param name="args"></param>
+        /// <returns>IHostBuilder</returns>
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                   webBuilder.UseStartup<Startup>()
+                             .UseUrls("http://0.0.0.0:8080/");
+                });
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Properties/launchSettings.json
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Properties/launchSettings.json
@ -0,0 +1,37 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:61788",
+      "sslPort": 44301
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "openapi",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "OpenAPI": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "openapi",
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Docker": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/openapi",
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Startup.cs
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/Startup.cs
@ -0,0 +1,150 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.IO;
+using System.Reflection;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.OpenApi.Models;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Org.OpenAPITools.Authentication;
+using Org.OpenAPITools.Filters;
+using Org.OpenAPITools.OpenApi;
+using Org.OpenAPITools.Formatters;
+
+namespace Org.OpenAPITools
+{
+    /// <summary>
+    /// Startup
+    /// </summary>
+    public class Startup
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="configuration"></param>
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        /// <summary>
+        /// The application configuration.
+        /// </summary>
+        public IConfiguration Configuration { get; }
+
+        /// <summary>
+        /// This method gets called by the runtime. Use this method to add services to the container.
+        /// </summary>
+        /// <param name="services"></param>
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddTransient<IAuthorizationHandler, ApiKeyRequirementHandler>();
+            services.AddAuthorization(authConfig =>
+            {
+                authConfig.AddPolicy("api_key", policyBuilder =>
+                {
+                    policyBuilder
+                        .AddRequirements(new ApiKeyRequirement(new[] { "my-secret-key" },"api_key"));
+                });
+            });
+
+            // Add framework services.
+            services
+                // Don't need the full MVC stack for an API, see https://andrewlock.net/comparing-startup-between-the-asp-net-core-3-templates/
+                .AddControllers(options => {
+                    options.InputFormatters.Insert(0, new InputFormatterStream());
+                })
+                .AddJsonOptions(options =>
+                {
+                    options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
+                    options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter(JsonNamingPolicy.CamelCase));
+                });
+            services
+                .AddSwaggerGen(c =>
+                {
+                    c.EnableAnnotations(enableAnnotationsForInheritance: true, enableAnnotationsForPolymorphism: true);
+                    
+                    c.SwaggerDoc("1.0.0", new OpenApiInfo
+                    {
+                        Title = "OpenAPI Petstore",
+                        Description = "OpenAPI Petstore (ASP.NET Core 8.0)",
+                        TermsOfService = new Uri("https://github.com/openapitools/openapi-generator"),
+                        Contact = new OpenApiContact
+                        {
+                            Name = "OpenAPI-Generator Contributors",
+                            Url = new Uri("https://github.com/openapitools/openapi-generator"),
+                            Email = ""
+                        },
+                        License = new OpenApiLicense
+                        {
+                            Name = "NoLicense",
+                            Url = new Uri("https://www.apache.org/licenses/LICENSE-2.0.html")
+                        },
+                        Version = "1.0.0",
+                    });
+                    c.CustomSchemaIds(type => type.FriendlyId(true));
+                    c.IncludeXmlComments($"{AppContext.BaseDirectory}{Path.DirectorySeparatorChar}{Assembly.GetEntryAssembly().GetName().Name}.xml");
+                    // Sets the basePath property in the OpenAPI document generated
+                    c.DocumentFilter<BasePathFilter>("/v2");
+
+                    // Include DataAnnotation attributes on Controller Action parameters as OpenAPI validation rules (e.g required, pattern, ..)
+                    // Use [ValidateModelState] on Actions to actually validate it in C# as well!
+                    c.OperationFilter<GeneratePathParamsValidationFilter>();
+                });
+        }
+
+        /// <summary>
+        /// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        /// </summary>
+        /// <param name="app"></param>
+        /// <param name="env"></param>
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+            else
+            {
+                app.UseHsts();
+            }
+
+            app.UseHttpsRedirection();
+            app.UseDefaultFiles();
+            app.UseStaticFiles();
+            app.UseSwagger(c =>
+                {
+                    c.RouteTemplate = "openapi/{documentName}/openapi.json";
+                })
+                .UseSwaggerUI(c =>
+                {
+                    // set route prefix to openapi, e.g. http://localhost:8080/openapi/index.html
+                    c.RoutePrefix = "openapi";
+                    //TODO: Either use the SwaggerGen generated OpenAPI contract (generated from C# classes)
+                    c.SwaggerEndpoint("/openapi/1.0.0/openapi.json", "OpenAPI Petstore");
+
+                    //TODO: Or alternatively use the original OpenAPI contract that's included in the static files
+                    // c.SwaggerEndpoint("/openapi-original.json", "OpenAPI Petstore Original");
+                });
+            app.UseRouting();
+            app.UseEndpoints(endpoints =>
+                {
+                    endpoints.MapControllers();
+                });
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/appsettings.Development.json
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/appsettings.Development.json
@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  }
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/appsettings.json
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/appsettings.json
@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/README.md
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/README.md
@ -0,0 +1,42 @@
+# Welcome to ASP.NET 5 Preview
+
+We've made some big updates in this release, so it’s **important** that you spend a few minutes to learn what’s new.
+
+ASP.NET 5 has been rearchitected to make it **lean** and **composable**. It's fully **open source** and available on [GitHub](http://go.microsoft.com/fwlink/?LinkID=517854).
+Your new project automatically takes advantage of modern client-side utilities like [Bower](http://go.microsoft.com/fwlink/?LinkId=518004) and [npm](http://go.microsoft.com/fwlink/?LinkId=518005) (to add client-side libraries) and [Gulp](http://go.microsoft.com/fwlink/?LinkId=518007) (for client-side build and automation tasks).
+
+We hope you enjoy the new capabilities in ASP.NET 5 and Visual Studio 2015.
+The ASP.NET Team
+
+### You've created a new ASP.NET 5 project. [Learn what's new](http://go.microsoft.com/fwlink/?LinkId=518016)
+
+### This application consists of:
+* Sample pages using ASP.NET MVC 6
+* [Gulp](http://go.microsoft.com/fwlink/?LinkId=518007) and [Bower](http://go.microsoft.com/fwlink/?LinkId=518004) for managing client-side resources
+* Theming using [Bootstrap](http://go.microsoft.com/fwlink/?LinkID=398939)
+
+#### NEW CONCEPTS
+* [The 'wwwroot' explained](http://go.microsoft.com/fwlink/?LinkId=518008)
+* [Configuration in ASP.NET 5](http://go.microsoft.com/fwlink/?LinkId=518012)
+* [Dependency Injection](http://go.microsoft.com/fwlink/?LinkId=518013)
+* [Razor TagHelpers](http://go.microsoft.com/fwlink/?LinkId=518014)
+* [Manage client packages using Gulp](http://go.microsoft.com/fwlink/?LinkID=517849)
+* [Develop on different platforms](http://go.microsoft.com/fwlink/?LinkID=517850)
+
+#### CUSTOMIZE APP
+* [Add Controllers and Views](http://go.microsoft.com/fwlink/?LinkID=398600)
+* [Add Data using EntityFramework](http://go.microsoft.com/fwlink/?LinkID=398602)
+* [Add Authentication using Identity](http://go.microsoft.com/fwlink/?LinkID=398603)
+* [Add real time support using SignalR](http://go.microsoft.com/fwlink/?LinkID=398606)
+* [Add Class library](http://go.microsoft.com/fwlink/?LinkID=398604)
+* [Add Web APIs with MVC 6](http://go.microsoft.com/fwlink/?LinkId=518009)
+* [Add client packages using Bower](http://go.microsoft.com/fwlink/?LinkID=517848)
+
+#### DEPLOY
+* [Run your app locally](http://go.microsoft.com/fwlink/?LinkID=517851)
+* [Run your app on ASP.NET Core 5](http://go.microsoft.com/fwlink/?LinkID=517852)
+* [Run commands in your 'project.json'](http://go.microsoft.com/fwlink/?LinkID=517853)
+* [Publish to Microsoft Azure Web Sites](http://go.microsoft.com/fwlink/?LinkID=398609)
+* [Publish to the file system](http://go.microsoft.com/fwlink/?LinkId=518019)
+
+We would love to hear your [feedback](http://go.microsoft.com/fwlink/?LinkId=518015)
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/index.html
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/index.html
@ -0,0 +1 @@
+<meta http-equiv="refresh" content="0;URL='./openapi/'" />
--- a/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/openapi-original.json
+++ b/samples/server/petstore/aspnetcore-8.0-NewtonsoftFalse/src/Org.OpenAPITools/wwwroot/openapi-original.json
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator-ignore
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator-ignore
@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator/FILES
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator/FILES
@ -0,0 +1,38 @@
+Org.OpenAPITools.sln
+README.md
+build.bat
+build.sh
+src/Org.OpenAPITools/.gitignore
+src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
+src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
+src/Org.OpenAPITools/Controllers/DefaultApi.cs
+src/Org.OpenAPITools/Controllers/FakeApi.cs
+src/Org.OpenAPITools/Controllers/PetApi.cs
+src/Org.OpenAPITools/Controllers/StoreApi.cs
+src/Org.OpenAPITools/Controllers/UserApi.cs
+src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
+src/Org.OpenAPITools/Dockerfile
+src/Org.OpenAPITools/Filters/BasePathFilter.cs
+src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
+src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
+src/Org.OpenAPITools/Models/Animal.cs
+src/Org.OpenAPITools/Models/ApiResponse.cs
+src/Org.OpenAPITools/Models/Cat.cs
+src/Org.OpenAPITools/Models/Category.cs
+src/Org.OpenAPITools/Models/Dog.cs
+src/Org.OpenAPITools/Models/Order.cs
+src/Org.OpenAPITools/Models/Pet.cs
+src/Org.OpenAPITools/Models/Tag.cs
+src/Org.OpenAPITools/Models/TestEnum.cs
+src/Org.OpenAPITools/Models/TestNullable.cs
+src/Org.OpenAPITools/Models/User.cs
+src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
+src/Org.OpenAPITools/Org.OpenAPITools.csproj
+src/Org.OpenAPITools/Program.cs
+src/Org.OpenAPITools/Properties/launchSettings.json
+src/Org.OpenAPITools/Startup.cs
+src/Org.OpenAPITools/appsettings.Development.json
+src/Org.OpenAPITools/appsettings.json
+src/Org.OpenAPITools/wwwroot/README.md
+src/Org.OpenAPITools/wwwroot/index.html
+src/Org.OpenAPITools/wwwroot/openapi-original.json
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator/VERSION
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/.openapi-generator/VERSION
@ -0,0 +1 @@
+7.8.0-SNAPSHOT
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/Org.OpenAPITools.sln
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/Org.OpenAPITools.sln
@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27428.2043
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Org.OpenAPITools", "src\Org.OpenAPITools\Org.OpenAPITools.csproj", "{3C799344-F285-4669-8FD5-7ED9B795D5C5}"
+EndProject
+Global
+    GlobalSection(SolutionConfigurationPlatforms) = preSolution
+        Debug|Any CPU = Debug|Any CPU
+        Release|Any CPU = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(ProjectConfigurationPlatforms) = postSolution
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+        {3C799344-F285-4669-8FD5-7ED9B795D5C5}.Release|Any CPU.Build.0 = Release|Any CPU
+    EndGlobalSection
+    GlobalSection(SolutionProperties) = preSolution
+        HideSolutionNode = FALSE
+    EndGlobalSection
+EndGlobal
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/README.md
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/README.md
@ -0,0 +1,50 @@
+# Org.OpenAPITools - ASP.NET Core 8.0 Server
+
+This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+
+## Upgrade NuGet Packages
+
+NuGet packages get frequently updated.
+
+To upgrade this solution to the latest version of all NuGet packages, use the dotnet-outdated tool.
+
+
+Install dotnet-outdated tool:
+
+```
+dotnet tool install --global dotnet-outdated-tool
+```
+
+Upgrade only to new minor versions of packages
+
+```
+dotnet outdated --upgrade --version-lock Major
+```
+
+Upgrade to all new versions of packages (more likely to include breaking API changes)
+
+```
+dotnet outdated --upgrade
+```
+
+
+## Run
+
+Linux/OS X:
+
+```
+sh build.sh
+```
+
+Windows:
+
+```
+build.bat
+```
+## Run in Docker
+
+```
+cd src/Org.OpenAPITools
+docker build -t org.openapitools .
+docker run -p 5000:8080 org.openapitools
+```
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/build.bat
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/build.bat
@ -0,0 +1,9 @@
+:: Generated by: https://openapi-generator.tech
+::
+
+@echo off
+
+dotnet restore src\Org.OpenAPITools
+dotnet build src\Org.OpenAPITools
+echo Now, run the following to start the project: dotnet run -p src\Org.OpenAPITools\Org.OpenAPITools.csproj --launch-profile web.
+echo.
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/build.sh
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/build.sh
@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Generated by: https://openapi-generator.tech
+#
+
+dotnet restore src/Org.OpenAPITools/ && \
+    dotnet build src/Org.OpenAPITools/ && \
+    echo "Now, run the following to start the project: dotnet run -p src/Org.OpenAPITools/Org.OpenAPITools.csproj --launch-profile web"
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/.gitignore
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/.gitignore
@ -0,0 +1,362 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Attributes/ValidateModelStateAttribute.cs
@ -0,0 +1,69 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.ComponentModel.DataAnnotations;
+using System.Reflection;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Controllers;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+
+namespace Org.OpenAPITools.Attributes
+{
+    /// <summary>
+    /// Model state validation attribute
+    /// </summary>
+    public class ValidateModelStateAttribute : ActionFilterAttribute
+    {
+        /// <summary>
+        /// Called before the action method is invoked
+        /// </summary>
+        /// <param name="context"></param>
+        public override void OnActionExecuting(ActionExecutingContext context)
+        {
+            // Per https://blog.markvincze.com/how-to-validate-action-parameters-with-dataannotation-attributes/
+            if (context.ActionDescriptor is ControllerActionDescriptor descriptor)
+            {
+                foreach (var parameter in descriptor.MethodInfo.GetParameters())
+                {
+                    object? args = null;
+                    if (parameter.Name != null && context.ActionArguments.ContainsKey(parameter.Name))
+                    {
+                        args = context.ActionArguments[parameter.Name];
+                    }
+
+                    ValidateAttributes(parameter, args, context.ModelState);
+                }
+            }
+
+            if (!context.ModelState.IsValid)
+            {
+                context.Result = new BadRequestObjectResult(context.ModelState);
+            }
+        }
+
+        private void ValidateAttributes(ParameterInfo parameter, object? args, ModelStateDictionary modelState)
+        {
+            foreach (var attributeData in parameter.CustomAttributes)
+            {
+                var attributeInstance = parameter.GetCustomAttribute(attributeData.AttributeType);
+
+                if (attributeInstance is ValidationAttribute validationAttribute)
+                {
+                    var isValid = validationAttribute.IsValid(args);
+                    if (!isValid && parameter.Name != null)
+                    {
+                        modelState.AddModelError(parameter.Name, validationAttribute.FormatErrorMessage(parameter.Name));
+                    }
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Authentication/ApiAuthentication.cs
@ -0,0 +1,72 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace Org.OpenAPITools.Authentication
+{
+    /// <summary>
+    /// A requirement that an ApiKey must be present.
+    /// </summary>
+    public class ApiKeyRequirement : IAuthorizationRequirement
+    {
+        /// <summary>
+        /// Get the list of api keys
+        /// </summary>
+        public IReadOnlyList<string> ApiKeys { get; }
+
+        /// <summary>
+        /// Get the policy name,
+        /// </summary>
+        public string PolicyName { get; }
+
+        /// <summary>
+        /// Create a new instance of the <see cref="ApiKeyRequirement"/> class.
+        /// </summary>
+        /// <param name="apiKeys"></param>
+        /// <param name="policyName"></param>
+        public ApiKeyRequirement(IEnumerable<string> apiKeys, string policyName)
+        {
+            ApiKeys = apiKeys?.ToList() ?? new List<string>();
+            PolicyName = policyName;
+        }
+    }
+
+    /// <summary>
+    /// Enforce that an api key is present.
+    /// </summary>
+    public class ApiKeyRequirementHandler : AuthorizationHandler<ApiKeyRequirement>
+    {
+        /// <copydoc cref="AuthorizationHandler{T}.HandleRequirementAsync" />
+        protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, ApiKeyRequirement requirement)
+        {
+            SucceedRequirementIfApiKeyPresentAndValid(context, requirement);
+            return Task.CompletedTask;
+        }
+
+        private void SucceedRequirementIfApiKeyPresentAndValid(AuthorizationHandlerContext context, ApiKeyRequirement requirement)
+        {
+
+            if (context.Resource is AuthorizationFilterContext authorizationFilterContext)
+            {
+                var apiKey = authorizationFilterContext.HttpContext.Request.Headers["api_key"].FirstOrDefault();
+                if (requirement.PolicyName == "api_key" && apiKey != null && requirement.ApiKeys.Any(requiredApiKey => apiKey == requiredApiKey))
+                {
+                    context.Succeed(requirement);
+                }
+            }
+
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/DefaultApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/DefaultApi.cs
@ -0,0 +1,49 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class DefaultApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Test API
+        /// </summary>
+        /// <param name="testQuery"></param>
+        /// <response code="200">OK</response>
+        [HttpGet]
+        [Route("/v2/test")]
+        [ValidateModelState]
+        [SwaggerOperation("TestGet")]
+        public virtual IActionResult TestGet([FromQuery (Name = "testQuery")]TestEnum? testQuery)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/FakeApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/FakeApi.cs
@ -0,0 +1,73 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class FakeApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Fake endpoint to test nullable example (object)
+        /// </summary>
+        /// <response code="200">Successful operation</response>
+        [HttpGet]
+        [Route("/v2/fake/nullable_example_test")]
+        [ValidateModelState]
+        [SwaggerOperation("FakeNullableExampleTest")]
+        [SwaggerResponse(statusCode: 200, type: typeof(TestNullable), description: "Successful operation")]
+        public virtual IActionResult FakeNullableExampleTest()
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(TestNullable));
+            string exampleJson = null;
+            exampleJson = "{\n  \"nullableName\" : \"nullableName\",\n  \"name\" : \"name\"\n}";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<TestNullable>(exampleJson)
+            : default(TestNullable);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// fake endpoint to test parameter example (object)
+        /// </summary>
+        /// <param name="data"></param>
+        /// <response code="0">successful operation</response>
+        [HttpGet]
+        [Route("/v2/fake/parameter_example_test")]
+        [ValidateModelState]
+        [SwaggerOperation("FakeParameterExampleTest")]
+        public virtual IActionResult FakeParameterExampleTest([FromQuery (Name = "data")][Required()]Pet data)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/PetApi.cs
@ -0,0 +1,260 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class PetApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="405">Invalid input</response>
+        [HttpPost]
+        [Route("/v2/pet")]
+        [Consumes("application/json", "application/xml")]
+        [ValidateModelState]
+        [SwaggerOperation("AddPet")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult AddPet([FromBody]Pet pet)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"></param>
+        /// <response code="400">Invalid pet value</response>
+        [HttpDelete]
+        [Route("/v2/pet/{petId}")]
+        [ValidateModelState]
+        [SwaggerOperation("DeletePet")]
+        public virtual IActionResult DeletePet([FromRoute (Name = "petId")][Required]long petId, [FromHeader (Name = "api_key")]string? apiKey)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>Multiple status values can be provided with comma separated strings</remarks>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid status value</response>
+        [HttpGet]
+        [Route("/v2/pet/findByStatus")]
+        [ValidateModelState]
+        [SwaggerOperation("FindPetsByStatus")]
+        [SwaggerResponse(statusCode: 200, type: typeof(List<Pet>), description: "successful operation")]
+        public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Required()]List<string> status)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(List<Pet>));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
+            : default(List<Pet>);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.</remarks>
+        /// <param name="tags">Tags to filter by</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid tag value</response>
+        [HttpGet]
+        [Route("/v2/pet/findByTags")]
+        [ValidateModelState]
+        [SwaggerOperation("FindPetsByTags")]
+        [SwaggerResponse(statusCode: 200, type: typeof(List<Pet>), description: "successful operation")]
+        [Obsolete]
+        public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required()]List<string> tags)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(List<Pet>));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
+            : default(List<Pet>);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>Returns a single pet</remarks>
+        /// <param name="petId">ID of pet to return</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Pet not found</response>
+        [HttpGet]
+        [Route("/v2/pet/{petId}")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("GetPetById")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]long petId)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Pet not found</response>
+        /// <response code="405">Validation exception</response>
+        [HttpPut]
+        [Route("/v2/pet")]
+        [Consumes("application/json", "application/xml")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdatePet")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Pet), description: "successful operation")]
+        public virtual IActionResult UpdatePet([FromBody]Pet pet)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Pet));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+            string exampleJson = null;
+            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Pet>(exampleJson)
+            : default(Pet);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet</param>
+        /// <param name="status">Updated status of the pet</param>
+        /// <response code="405">Invalid input</response>
+        [HttpPost]
+        [Route("/v2/pet/{petId}")]
+        [Consumes("application/x-www-form-urlencoded")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdatePetWithForm")]
+        public virtual IActionResult UpdatePetWithForm([FromRoute (Name = "petId")][Required]long petId, [FromForm (Name = "name")]string? name, [FromForm (Name = "status")]string? status)
+        {
+
+            //TODO: Uncomment the next line to return response 405 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(405);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server</param>
+        /// <param name="file">file to upload</param>
+        /// <response code="200">successful operation</response>
+        [HttpPost]
+        [Route("/v2/pet/{petId}/uploadImage")]
+        [Consumes("multipart/form-data")]
+        [ValidateModelState]
+        [SwaggerOperation("UploadFile")]
+        [SwaggerResponse(statusCode: 200, type: typeof(ApiResponse), description: "successful operation")]
+        public virtual IActionResult UploadFile([FromRoute (Name = "petId")][Required]long petId, [FromForm (Name = "additionalMetadata")]string? additionalMetadata, IFormFile file)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(ApiResponse));
+            string exampleJson = null;
+            exampleJson = "{\n  \"code\" : 0,\n  \"type\" : \"type\",\n  \"message\" : \"message\"\n}";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<ApiResponse>(exampleJson)
+            : default(ApiResponse);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/StoreApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/StoreApi.cs
@ -0,0 +1,141 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class StoreApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors</remarks>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Order not found</response>
+        [HttpDelete]
+        [Route("/v2/store/order/{orderId}")]
+        [ValidateModelState]
+        [SwaggerOperation("DeleteOrder")]
+        public virtual IActionResult DeleteOrder([FromRoute (Name = "orderId")][Required]string orderId)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>Returns a map of status codes to quantities</remarks>
+        /// <response code="200">successful operation</response>
+        [HttpGet]
+        [Route("/v2/store/inventory")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("GetInventory")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Dictionary<string, int>), description: "successful operation")]
+        public virtual IActionResult GetInventory()
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Dictionary<string, int>));
+            string exampleJson = null;
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Dictionary<string, int>>(exampleJson)
+            : new Dictionary<string, int>();
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions</remarks>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid ID supplied</response>
+        /// <response code="404">Order not found</response>
+        [HttpGet]
+        [Route("/v2/store/order/{orderId}")]
+        [ValidateModelState]
+        [SwaggerOperation("GetOrderById")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Order), description: "successful operation")]
+        public virtual IActionResult GetOrderById([FromRoute (Name = "orderId")][Required][Range(1, 5)]long orderId)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Order));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"petId\" : 6,\n  \"quantity\" : 1,\n  \"id\" : 0,\n  \"shipDate\" : \"2000-01-23T04:56:07.000+00:00\",\n  \"complete\" : false,\n  \"status\" : \"placed\"\n}";
+            exampleJson = "<Order>\n  <id>123456789</id>\n  <petId>123456789</petId>\n  <quantity>123</quantity>\n  <shipDate>2000-01-23T04:56:07.000Z</shipDate>\n  <status>aeiou</status>\n  <complete>true</complete>\n</Order>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Order>(exampleJson)
+            : default(Order);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid Order</response>
+        [HttpPost]
+        [Route("/v2/store/order")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("PlaceOrder")]
+        [SwaggerResponse(statusCode: 200, type: typeof(Order), description: "successful operation")]
+        public virtual IActionResult PlaceOrder([FromBody]Order order)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(Order));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            exampleJson = "{\n  \"petId\" : 6,\n  \"quantity\" : 1,\n  \"id\" : 0,\n  \"shipDate\" : \"2000-01-23T04:56:07.000+00:00\",\n  \"complete\" : false,\n  \"status\" : \"placed\"\n}";
+            exampleJson = "<Order>\n  <id>123456789</id>\n  <petId>123456789</petId>\n  <quantity>123</quantity>\n  <shipDate>2000-01-23T04:56:07.000Z</shipDate>\n  <status>aeiou</status>\n  <complete>true</complete>\n</Order>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<Order>(exampleJson)
+            : default(Order);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/UserApi.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Controllers/UserApi.cs
@ -0,0 +1,218 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
+using Swashbuckle.AspNetCore.Annotations;
+using Swashbuckle.AspNetCore.SwaggerGen;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Attributes;
+using Org.OpenAPITools.Models;
+
+namespace Org.OpenAPITools.Controllers
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [ApiController]
+    public class UserApiController : ControllerBase
+    { 
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="user">Created user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUser")]
+        public virtual IActionResult CreateUser([FromBody]User user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <param name="user">List of user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user/createWithArray")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUsersWithArrayInput")]
+        public virtual IActionResult CreateUsersWithArrayInput([FromBody]List<User> user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <param name="user">List of user object</param>
+        /// <response code="0">successful operation</response>
+        [HttpPost]
+        [Route("/v2/user/createWithList")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("CreateUsersWithListInput")]
+        public virtual IActionResult CreateUsersWithListInput([FromBody]List<User> user)
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <response code="400">Invalid username supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpDelete]
+        [Route("/v2/user/{username}")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("DeleteUser")]
+        public virtual IActionResult DeleteUser([FromRoute (Name = "username")][Required]string username)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid username supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpGet]
+        [Route("/v2/user/{username}")]
+        [ValidateModelState]
+        [SwaggerOperation("GetUserByName")]
+        [SwaggerResponse(statusCode: 200, type: typeof(User), description: "successful operation")]
+        public virtual IActionResult GetUserByName([FromRoute (Name = "username")][Required]string username)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(User));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+            string exampleJson = null;
+            exampleJson = "{\n  \"firstName\" : \"firstName\",\n  \"lastName\" : \"lastName\",\n  \"password\" : \"password\",\n  \"userStatus\" : 6,\n  \"phone\" : \"phone\",\n  \"id\" : 0,\n  \"email\" : \"email\",\n  \"username\" : \"username\"\n}";
+            exampleJson = "<User>\n  <id>123456789</id>\n  <username>aeiou</username>\n  <firstName>aeiou</firstName>\n  <lastName>aeiou</lastName>\n  <email>aeiou</email>\n  <password>aeiou</password>\n  <phone>aeiou</phone>\n  <userStatus>123</userStatus>\n</User>";
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<User>(exampleJson)
+            : default(User);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <response code="200">successful operation</response>
+        /// <response code="400">Invalid username/password supplied</response>
+        [HttpGet]
+        [Route("/v2/user/login")]
+        [ValidateModelState]
+        [SwaggerOperation("LoginUser")]
+        [SwaggerResponse(statusCode: 200, type: typeof(string), description: "successful operation")]
+        public virtual IActionResult LoginUser([FromQuery (Name = "username")][Required()][RegularExpression("^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$")]string username, [FromQuery (Name = "password")][Required()]string password)
+        {
+
+            //TODO: Uncomment the next line to return response 200 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(200, default(string));
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            string exampleJson = null;
+            
+            var example = exampleJson != null
+            ? JsonConvert.DeserializeObject<string>(exampleJson)
+            : default(string);
+            //TODO: Change the data returned
+            return new ObjectResult(example);
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <response code="0">successful operation</response>
+        [HttpGet]
+        [Route("/v2/user/logout")]
+        [Authorize(Policy = "api_key")]
+        [ValidateModelState]
+        [SwaggerOperation("LogoutUser")]
+        public virtual IActionResult LogoutUser()
+        {
+
+            //TODO: Uncomment the next line to return response 0 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(0);
+
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>This can only be done by the logged in user.</remarks>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <response code="400">Invalid user supplied</response>
+        /// <response code="404">User not found</response>
+        [HttpPut]
+        [Route("/v2/user/{username}")]
+        [Authorize(Policy = "api_key")]
+        [Consumes("application/json")]
+        [ValidateModelState]
+        [SwaggerOperation("UpdateUser")]
+        public virtual IActionResult UpdateUser([FromRoute (Name = "username")][Required]string username, [FromBody]User user)
+        {
+
+            //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(400);
+            //TODO: Uncomment the next line to return response 404 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
+            // return StatusCode(404);
+
+            throw new NotImplementedException();
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Converters/CustomEnumConverter.cs
@ -0,0 +1,52 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Converters
+{
+    /// <summary>
+    /// Custom string to enum converter
+    /// </summary>
+    public class CustomEnumConverter<T> : TypeConverter
+    {
+        /// <summary>
+        /// Determine if we can convert a type to an enum
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="sourceType"></param>
+        /// <returns></returns>
+        public override bool CanConvertFrom(ITypeDescriptorContext? context, Type sourceType)
+        {
+            return sourceType == typeof(string) || base.CanConvertFrom(context, sourceType);
+        }
+
+        /// <summary>
+        /// Convert from a type value to an enum
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="culture"></param>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
+        {
+            var s = value as string;
+            if (string.IsNullOrEmpty(s))
+            {
+                return null;
+            }
+
+            return JsonConvert.DeserializeObject<T>(@"""" + value + @"""");
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Dockerfile
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Dockerfile
@ -0,0 +1,32 @@
+#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+# Container we use for final publish
+FROM mcr.microsoft.com/dotnet/core/aspnet:8.0-buster-slim AS base
+WORKDIR /app
+EXPOSE 80
+EXPOSE 443
+
+# Build container
+FROM mcr.microsoft.com/dotnet/core/sdk:8.0-buster AS build
+
+# Copy the code into the container
+WORKDIR /src
+COPY ["src/Org.OpenAPITools/Org.OpenAPITools.csproj", "Org.OpenAPITools/"]
+
+# NuGet restore
+RUN dotnet restore "Org.OpenAPITools/Org.OpenAPITools.csproj"
+COPY ["src/Org.OpenAPITools/", "Org.OpenAPITools/"]
+
+# Build the API
+WORKDIR "Org.OpenAPITools"
+RUN dotnet build "Org.OpenAPITools.csproj" -c Release -o /app/build
+
+# Publish it
+FROM build AS publish
+RUN dotnet publish "Org.OpenAPITools.csproj" -c Release -o /app/publish
+
+# Make the final image for publishing
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "Org.OpenAPITools.dll"]
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Filters/BasePathFilter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Filters/BasePathFilter.cs
@ -0,0 +1,60 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.Linq;
+using System.Text.RegularExpressions;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace Org.OpenAPITools.Filters
+{
+    /// <summary>
+    /// BasePath Document Filter sets BasePath property of OpenAPI and removes it from the individual URL paths
+    /// </summary>
+    public class BasePathFilter : IDocumentFilter
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="basePath">BasePath to remove from Operations</param>
+        public BasePathFilter(string basePath)
+        {
+            BasePath = basePath;
+        }
+
+        /// <summary>
+        /// Gets the BasePath of the OpenAPI Doc
+        /// </summary>
+        /// <returns>The BasePath of the OpenAPI Doc</returns>
+        public string BasePath { get; }
+
+        /// <summary>
+        /// Apply the filter
+        /// </summary>
+        /// <param name="openapiDoc">OpenApiDocument</param>
+        /// <param name="context">FilterContext</param>
+        public void Apply(OpenApiDocument openapiDoc, DocumentFilterContext context)
+        {
+            //openapiDoc.BasePath = BasePath;
+
+            var pathsToModify = openapiDoc.Paths.Where(p => p.Key.StartsWith(BasePath)).ToList();
+
+            foreach (var (key, value) in pathsToModify)
+            {
+                if (key.StartsWith(BasePath))
+                {
+                    var newKey = Regex.Replace(key, $"^{BasePath}", string.Empty);
+                    openapiDoc.Paths.Remove(key);
+                    openapiDoc.Paths.Add(newKey, value);
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Filters/GeneratePathParamsValidationFilter.cs
@ -0,0 +1,107 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using Microsoft.AspNetCore.Mvc.Controllers;
+using Microsoft.OpenApi.Models;
+using Swashbuckle.AspNetCore.SwaggerGen;
+
+namespace Org.OpenAPITools.Filters
+{
+    /// <summary>
+    /// Path Parameter Validation Rules Filter
+    /// </summary>
+    public class GeneratePathParamsValidationFilter : IOperationFilter
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="operation">Operation</param>
+        /// <param name="context">OperationFilterContext</param>
+        public void Apply(OpenApiOperation operation, OperationFilterContext context)
+        {
+            var pars = context.ApiDescription.ParameterDescriptions;
+
+            foreach (var par in pars)
+            {
+                var openapiParam = operation.Parameters.SingleOrDefault(p => p.Name == par.Name);
+
+                var attributes = ((ControllerParameterDescriptor)par.ParameterDescriptor).ParameterInfo.CustomAttributes.ToList();
+
+                // See https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/1147
+                // and https://mikeralphson.github.io/openapi/2017/03/15/openapi3.0.0-rc0
+                // Basically OpenAPI v3 body parameters are split out into RequestBody and the properties have moved to schema
+                if (attributes.Any() && openapiParam != null)
+                {
+                    // Required - [Required]
+                    var requiredAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RequiredAttribute));
+                    if (requiredAttr != null)
+                    {
+                        openapiParam.Required = true;
+                    }
+
+                    // Regex Pattern [RegularExpression]
+                    var regexAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RegularExpressionAttribute));
+                    if (regexAttr != null)
+                    {
+                        var regex = (string)regexAttr.ConstructorArguments[0].Value;
+                        openapiParam.Schema.Pattern = regex;
+                    }
+
+                    // String Length [StringLength]
+                    int? minLength = null, maxLength = null;
+                    var stringLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(StringLengthAttribute));
+                    if (stringLengthAttr != null)
+                    {
+                        if (stringLengthAttr.NamedArguments.Count == 1)
+                        {
+                            minLength = (int)stringLengthAttr.NamedArguments.Single(p => p.MemberName == "MinimumLength").TypedValue.Value;
+                        }
+                        maxLength = (int)stringLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    var minLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(MinLengthAttribute));
+                    if (minLengthAttr != null)
+                    {
+                        minLength = (int)minLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    var maxLengthAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(MaxLengthAttribute));
+                    if (maxLengthAttr != null)
+                    {
+                        maxLength = (int)maxLengthAttr.ConstructorArguments[0].Value;
+                    }
+
+                    if (minLength != null)
+                    {
+                        openapiParam.Schema.MinLength = minLength;
+                    }
+
+                    if (maxLength != null)
+                    {
+                        openapiParam.Schema.MaxLength = maxLength;
+                    }
+
+                    // Range [Range]
+                    var rangeAttr = attributes.FirstOrDefault(p => p.AttributeType == typeof(RangeAttribute));
+                    if (rangeAttr != null)
+                    {
+                        var rangeMin = (int)rangeAttr.ConstructorArguments[0].Value;
+                        var rangeMax = (int)rangeAttr.ConstructorArguments[1].Value;
+
+                        openapiParam.Schema.MinLength = rangeMin;
+                        openapiParam.Schema.MaxLength = rangeMax;
+                    }
+                }
+            }
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Formatters/InputFormatterStream.cs
@ -0,0 +1,45 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc.Formatters;
+
+namespace Org.OpenAPITools.Formatters
+{
+    /// <inheritdoc />
+    public class InputFormatterStream : InputFormatter
+    {
+        /// <inheritdoc />
+        public InputFormatterStream()
+        {
+            SupportedMediaTypes.Add("application/octet-stream");
+            SupportedMediaTypes.Add("image/jpeg");
+        }
+
+        /// <inheritdoc />
+        public override Task<InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context)
+        {
+            return InputFormatterResult.SuccessAsync(context.HttpContext.Request.Body);
+        }
+
+        /// <inheritdoc />
+        protected override bool CanReadType(Type type)
+        {
+            if (type == typeof(Stream))
+            {
+                return true;
+            }
+
+            return false;
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Animal.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Animal.cs
@ -0,0 +1,142 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using JsonSubTypes;
+using Swashbuckle.AspNetCore.Annotations;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    [JsonConverter(typeof(JsonSubtypes), "ClassName")]
+    [SwaggerDiscriminator("ClassName")]
+    [JsonSubtypes.KnownSubType(typeof(Cat), "CAT")]
+    [SwaggerSubType(typeof(Cat), DiscriminatorValue =  "CAT")]
+    [JsonSubtypes.KnownSubType(typeof(Dog), "DOG")]
+    [SwaggerSubType(typeof(Dog), DiscriminatorValue =  "DOG")]
+    public partial class Animal : IEquatable<Animal>
+    {
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [Required]
+        [DataMember(Name="className", EmitDefaultValue=false)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Color
+        /// </summary>
+        [DataMember(Name="color", EmitDefaultValue=false)]
+        public string? Color { get; set; } = "red";
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Animal {\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  Color: ").Append(Color).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Animal)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Animal instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Animal to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Animal other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    ClassName == other.ClassName ||
+                    ClassName != null &&
+                    ClassName.Equals(other.ClassName)
+                ) && 
+                (
+                    Color == other.Color ||
+                    Color != null &&
+                    Color.Equals(other.Color)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (ClassName != null)
+                    hashCode = hashCode * 59 + ClassName.GetHashCode();
+                    if (Color != null)
+                    hashCode = hashCode * 59 + Color.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Animal left, Animal right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Animal left, Animal right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/ApiResponse.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/ApiResponse.cs
@ -0,0 +1,147 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// Describes the result of uploading an image resource
+    /// </summary>
+    [DataContract]
+    public partial class ApiResponse : IEquatable<ApiResponse>
+    {
+        /// <summary>
+        /// Gets or Sets Code
+        /// </summary>
+        [DataMember(Name="code", EmitDefaultValue=true)]
+        public int? Code { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Type
+        /// </summary>
+        [DataMember(Name="type", EmitDefaultValue=false)]
+        public string? Type { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Message
+        /// </summary>
+        [DataMember(Name="message", EmitDefaultValue=false)]
+        public string? Message { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class ApiResponse {\n");
+            sb.Append("  Code: ").Append(Code).Append("\n");
+            sb.Append("  Type: ").Append(Type).Append("\n");
+            sb.Append("  Message: ").Append(Message).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((ApiResponse)obj);
+        }
+
+        /// <summary>
+        /// Returns true if ApiResponse instances are equal
+        /// </summary>
+        /// <param name="other">Instance of ApiResponse to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ApiResponse other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Code == other.Code ||
+                    
+                    Code.Equals(other.Code)
+                ) && 
+                (
+                    Type == other.Type ||
+                    Type != null &&
+                    Type.Equals(other.Type)
+                ) && 
+                (
+                    Message == other.Message ||
+                    Message != null &&
+                    Message.Equals(other.Message)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Code.GetHashCode();
+                    if (Type != null)
+                    hashCode = hashCode * 59 + Type.GetHashCode();
+                    if (Message != null)
+                    hashCode = hashCode * 59 + Message.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(ApiResponse left, ApiResponse right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(ApiResponse left, ApiResponse right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Cat.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Cat.cs
@ -0,0 +1,119 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class Cat : Animal, IEquatable<Cat>
+    {
+        /// <summary>
+        /// Gets or Sets Declawed
+        /// </summary>
+        [DataMember(Name="declawed", EmitDefaultValue=true)]
+        public bool? Declawed { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Cat {\n");
+            sb.Append("  Declawed: ").Append(Declawed).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public new string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Cat)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Cat instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Cat to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Cat other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Declawed == other.Declawed ||
+                    
+                    Declawed.Equals(other.Declawed)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Declawed.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Cat left, Cat right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Cat left, Cat right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Category.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Category.cs
@ -0,0 +1,134 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A category for a pet
+    /// </summary>
+    [DataContract]
+    public partial class Category : IEquatable<Category>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [RegularExpression("^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$")]
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string? Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Category {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Category)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Category instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Category to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Category other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Category left, Category right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Category left, Category right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Dog.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Dog.cs
@ -0,0 +1,119 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class Dog : Animal, IEquatable<Dog>
+    {
+        /// <summary>
+        /// Gets or Sets Breed
+        /// </summary>
+        [DataMember(Name="breed", EmitDefaultValue=false)]
+        public string? Breed { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Dog {\n");
+            sb.Append("  Breed: ").Append(Breed).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public new string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Dog)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Dog instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Dog to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Dog other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Breed == other.Breed ||
+                    Breed != null &&
+                    Breed.Equals(other.Breed)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (Breed != null)
+                    hashCode = hashCode * 59 + Breed.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Dog left, Dog right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Dog left, Dog right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Order.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Order.cs
@ -0,0 +1,219 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// An order for a pets from the pet store
+    /// </summary>
+    [DataContract]
+    public partial class Order : IEquatable<Order>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PetId
+        /// </summary>
+        [DataMember(Name="petId", EmitDefaultValue=true)]
+        public long? PetId { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Quantity
+        /// </summary>
+        [DataMember(Name="quantity", EmitDefaultValue=true)]
+        public int? Quantity { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ShipDate
+        /// </summary>
+        [DataMember(Name="shipDate", EmitDefaultValue=true)]
+        public DateTime? ShipDate { get; set; }
+
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [TypeConverter(typeof(CustomEnumConverter<StatusEnum>))]
+        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        public enum StatusEnum
+        {
+            
+            /// <summary>
+            /// Enum PlacedEnum for placed
+            /// </summary>
+            [EnumMember(Value = "placed")]
+            PlacedEnum = 1,
+            
+            /// <summary>
+            /// Enum ApprovedEnum for approved
+            /// </summary>
+            [EnumMember(Value = "approved")]
+            ApprovedEnum = 2,
+            
+            /// <summary>
+            /// Enum DeliveredEnum for delivered
+            /// </summary>
+            [EnumMember(Value = "delivered")]
+            DeliveredEnum = 3
+        }
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [DataMember(Name="status", EmitDefaultValue=true)]
+        public StatusEnum Status { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Complete
+        /// </summary>
+        [DataMember(Name="complete", EmitDefaultValue=true)]
+        public bool? Complete { get; set; } = false;
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Order {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  PetId: ").Append(PetId).Append("\n");
+            sb.Append("  Quantity: ").Append(Quantity).Append("\n");
+            sb.Append("  ShipDate: ").Append(ShipDate).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("  Complete: ").Append(Complete).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Order)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Order instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Order to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Order other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    PetId == other.PetId ||
+                    
+                    PetId.Equals(other.PetId)
+                ) && 
+                (
+                    Quantity == other.Quantity ||
+                    
+                    Quantity.Equals(other.Quantity)
+                ) && 
+                (
+                    ShipDate == other.ShipDate ||
+                    
+                    ShipDate.Equals(other.ShipDate)
+                ) && 
+                (
+                    Status == other.Status ||
+                    
+                    Status.Equals(other.Status)
+                ) && 
+                (
+                    Complete == other.Complete ||
+                    
+                    Complete.Equals(other.Complete)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + PetId.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Quantity.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + ShipDate.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Status.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Complete.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Order left, Order right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Order left, Order right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Pet.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Pet.cs
@ -0,0 +1,224 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A pet for sale in the pet store
+    /// </summary>
+    [DataContract]
+    public partial class Pet : IEquatable<Pet>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Category
+        /// </summary>
+        [DataMember(Name="category", EmitDefaultValue=false)]
+        public Category? Category { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        /// <example>doggie</example>
+        [Required]
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PhotoUrls
+        /// </summary>
+        [Required]
+        [DataMember(Name="photoUrls", EmitDefaultValue=false)]
+        public List<string> PhotoUrls { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Tags
+        /// </summary>
+        [DataMember(Name="tags", EmitDefaultValue=false)]
+        public List<Tag> Tags { get; set; }
+
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [TypeConverter(typeof(CustomEnumConverter<StatusEnum>))]
+        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        public enum StatusEnum
+        {
+            
+            /// <summary>
+            /// Enum AvailableEnum for available
+            /// </summary>
+            [EnumMember(Value = "available")]
+            AvailableEnum = 1,
+            
+            /// <summary>
+            /// Enum PendingEnum for pending
+            /// </summary>
+            [EnumMember(Value = "pending")]
+            PendingEnum = 2,
+            
+            /// <summary>
+            /// Enum SoldEnum for sold
+            /// </summary>
+            [EnumMember(Value = "sold")]
+            SoldEnum = 3
+        }
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [DataMember(Name="status", EmitDefaultValue=true)]
+        public StatusEnum Status { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Pet {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Category: ").Append(Category).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  PhotoUrls: ").Append(PhotoUrls).Append("\n");
+            sb.Append("  Tags: ").Append(Tags).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Pet)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Pet instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Pet to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Pet other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Category == other.Category ||
+                    Category != null &&
+                    Category.Equals(other.Category)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                ) && 
+                (
+                    PhotoUrls == other.PhotoUrls ||
+                    PhotoUrls != null &&
+                    other.PhotoUrls != null &&
+                    PhotoUrls.SequenceEqual(other.PhotoUrls)
+                ) && 
+                (
+                    Tags == other.Tags ||
+                    Tags != null &&
+                    other.Tags != null &&
+                    Tags.SequenceEqual(other.Tags)
+                ) && 
+                (
+                    Status == other.Status ||
+                    
+                    Status.Equals(other.Status)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Category != null)
+                    hashCode = hashCode * 59 + Category.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                    if (PhotoUrls != null)
+                    hashCode = hashCode * 59 + PhotoUrls.GetHashCode();
+                    if (Tags != null)
+                    hashCode = hashCode * 59 + Tags.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + Status.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Pet left, Pet right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Pet left, Pet right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Tag.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/Tag.cs
@ -0,0 +1,133 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A tag for a pet
+    /// </summary>
+    [DataContract]
+    public partial class Tag : IEquatable<Tag>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string? Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Tag {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((Tag)obj);
+        }
+
+        /// <summary>
+        /// Returns true if Tag instances are equal
+        /// </summary>
+        /// <param name="other">Instance of Tag to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Tag other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(Tag left, Tag right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(Tag left, Tag right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/TestEnum.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/TestEnum.cs
@ -0,0 +1,43 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+        /// <summary>
+        /// Gets or Sets TestEnum
+        /// </summary>
+        [TypeConverter(typeof(CustomEnumConverter<TestEnum>))]
+        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        public enum TestEnum
+        {
+            
+            /// <summary>
+            /// Enum AEnum for A
+            /// </summary>
+            [EnumMember(Value = "A")]
+            AEnum = 1,
+            
+            /// <summary>
+            /// Enum BEnum for B
+            /// </summary>
+            [EnumMember(Value = "B")]
+            BEnum = 2
+        }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/TestNullable.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/TestNullable.cs
@ -0,0 +1,133 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// 
+    /// </summary>
+    [DataContract]
+    public partial class TestNullable : IEquatable<TestNullable>
+    {
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name="name", EmitDefaultValue=false)]
+        public string? Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NullableName
+        /// </summary>
+        [DataMember(Name="nullableName", EmitDefaultValue=true)]
+        public string? NullableName { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class TestNullable {\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  NullableName: ").Append(NullableName).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((TestNullable)obj);
+        }
+
+        /// <summary>
+        /// Returns true if TestNullable instances are equal
+        /// </summary>
+        /// <param name="other">Instance of TestNullable to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TestNullable other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Name == other.Name ||
+                    Name != null &&
+                    Name.Equals(other.Name)
+                ) && 
+                (
+                    NullableName == other.NullableName ||
+                    NullableName != null &&
+                    NullableName.Equals(other.NullableName)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    if (Name != null)
+                    hashCode = hashCode * 59 + Name.GetHashCode();
+                    if (NullableName != null)
+                    hashCode = hashCode * 59 + NullableName.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(TestNullable left, TestNullable right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(TestNullable left, TestNullable right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/User.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Models/User.cs
@ -0,0 +1,218 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Org.OpenAPITools.Converters;
+
+namespace Org.OpenAPITools.Models
+{ 
+    /// <summary>
+    /// A User who is purchasing from the pet store
+    /// </summary>
+    [DataContract]
+    public partial class User : IEquatable<User>
+    {
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name="id", EmitDefaultValue=true)]
+        public long? Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Username
+        /// </summary>
+        [DataMember(Name="username", EmitDefaultValue=false)]
+        public string? Username { get; set; }
+
+        /// <summary>
+        /// Gets or Sets FirstName
+        /// </summary>
+        [DataMember(Name="firstName", EmitDefaultValue=false)]
+        public string? FirstName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets LastName
+        /// </summary>
+        [DataMember(Name="lastName", EmitDefaultValue=false)]
+        public string? LastName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Email
+        /// </summary>
+        [DataMember(Name="email", EmitDefaultValue=false)]
+        public string? Email { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Password
+        /// </summary>
+        [DataMember(Name="password", EmitDefaultValue=false)]
+        public string? Password { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Phone
+        /// </summary>
+        [DataMember(Name="phone", EmitDefaultValue=false)]
+        public string? Phone { get; set; }
+
+        /// <summary>
+        /// User Status
+        /// </summary>
+        /// <value>User Status</value>
+        [DataMember(Name="userStatus", EmitDefaultValue=true)]
+        public int? UserStatus { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class User {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Username: ").Append(Username).Append("\n");
+            sb.Append("  FirstName: ").Append(FirstName).Append("\n");
+            sb.Append("  LastName: ").Append(LastName).Append("\n");
+            sb.Append("  Email: ").Append(Email).Append("\n");
+            sb.Append("  Password: ").Append(Password).Append("\n");
+            sb.Append("  Phone: ").Append(Phone).Append("\n");
+            sb.Append("  UserStatus: ").Append(UserStatus).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="obj">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj is null) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            return obj.GetType() == GetType() && Equals((User)obj);
+        }
+
+        /// <summary>
+        /// Returns true if User instances are equal
+        /// </summary>
+        /// <param name="other">Instance of User to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(User other)
+        {
+            if (other is null) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return 
+                (
+                    Id == other.Id ||
+                    
+                    Id.Equals(other.Id)
+                ) && 
+                (
+                    Username == other.Username ||
+                    Username != null &&
+                    Username.Equals(other.Username)
+                ) && 
+                (
+                    FirstName == other.FirstName ||
+                    FirstName != null &&
+                    FirstName.Equals(other.FirstName)
+                ) && 
+                (
+                    LastName == other.LastName ||
+                    LastName != null &&
+                    LastName.Equals(other.LastName)
+                ) && 
+                (
+                    Email == other.Email ||
+                    Email != null &&
+                    Email.Equals(other.Email)
+                ) && 
+                (
+                    Password == other.Password ||
+                    Password != null &&
+                    Password.Equals(other.Password)
+                ) && 
+                (
+                    Phone == other.Phone ||
+                    Phone != null &&
+                    Phone.Equals(other.Phone)
+                ) && 
+                (
+                    UserStatus == other.UserStatus ||
+                    
+                    UserStatus.Equals(other.UserStatus)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                var hashCode = 41;
+                // Suitable nullity checks etc, of course :)
+                    
+                    hashCode = hashCode * 59 + Id.GetHashCode();
+                    if (Username != null)
+                    hashCode = hashCode * 59 + Username.GetHashCode();
+                    if (FirstName != null)
+                    hashCode = hashCode * 59 + FirstName.GetHashCode();
+                    if (LastName != null)
+                    hashCode = hashCode * 59 + LastName.GetHashCode();
+                    if (Email != null)
+                    hashCode = hashCode * 59 + Email.GetHashCode();
+                    if (Password != null)
+                    hashCode = hashCode * 59 + Password.GetHashCode();
+                    if (Phone != null)
+                    hashCode = hashCode * 59 + Phone.GetHashCode();
+                    
+                    hashCode = hashCode * 59 + UserStatus.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        #region Operators
+        #pragma warning disable 1591
+
+        public static bool operator ==(User left, User right)
+        {
+            return Equals(left, right);
+        }
+
+        public static bool operator !=(User left, User right)
+        {
+            return !Equals(left, right);
+        }
+
+        #pragma warning restore 1591
+        #endregion Operators
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/OpenApi/TypeExtensions.cs
@ -0,0 +1,61 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ * Generated by: https://openapi-generator.tech
+ */
+
+using System;
+using System.Linq;
+using System.Text;
+
+namespace Org.OpenAPITools.OpenApi
+{
+    /// <summary>
+    /// Replacement utilities from Swashbuckle.AspNetCore.SwaggerGen which are not in 5.x
+    /// </summary>
+    public static class TypeExtensions
+    {
+        /// <summary>
+        /// Produce a friendly name for the type which is unique.
+        /// </summary>
+        /// <param name="type"></param>
+        /// <param name="fullyQualified"></param>
+        public static string FriendlyId(this Type type, bool fullyQualified = false)
+        {
+            var typeName = fullyQualified
+                ? type.FullNameSansTypeParameters().Replace("+", ".")
+                : type.Name;
+
+            if (type.IsGenericType)
+            {
+                var genericArgumentIds = type.GetGenericArguments()
+                    .Select(t => t.FriendlyId(fullyQualified))
+                    .ToArray();
+
+                return new StringBuilder(typeName)
+                    .Replace($"`{genericArgumentIds.Count()}", string.Empty)
+                    .Append($"[{string.Join(",", genericArgumentIds).TrimEnd(',')}]")
+                    .ToString();
+            }
+
+            return typeName;
+        }
+
+        /// <summary>
+        /// Determine the fully qualified type name without type parameters.
+        /// </summary>
+        /// <param name="type"></param>
+        public static string FullNameSansTypeParameters(this Type type)
+        {
+            var fullName = type.FullName;
+            if (string.IsNullOrEmpty(fullName))
+                fullName = type.Name;
+            var chopIndex = fullName.IndexOf("[[", StringComparison.Ordinal);
+            return (chopIndex == -1) ? fullName : fullName.Substring(0, chopIndex);
+        }
+    }
+}
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Org.OpenAPITools.csproj
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Org.OpenAPITools.csproj
@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <Description>A library generated from a OpenAPI doc</Description>
+    <Copyright>No Copyright</Copyright>
+    <Authors>OpenAPI</Authors>
+    <TargetFramework>net8.0</TargetFramework>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <PreserveCompilationContext>true</PreserveCompilationContext>
+    <Version>1.0.0</Version>
+    <Nullable>annotations</Nullable>
+    <AssemblyName>Org.OpenAPITools</AssemblyName>
+    <PackageId>Org.OpenAPITools</PackageId>
+    <UserSecretsId>cb87e868-8646-48ef-9bb6-344b537d0d37</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    <DockerfileContext>..\..</DockerfileContext>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0"/>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.10.8" />
+    <PackageReference Include="Swashbuckle.AspNetCore.Newtonsoft" Version="6.4.0"/>
+    <PackageReference Include="Swashbuckle.AspNetCore.SwaggerUI" Version="6.4.0"/>
+    <PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="6.4.0" />
+    <PackageReference Include="JsonSubTypes" Version="1.8.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <!--<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.0" />-->
+  </ItemGroup>
+</Project>
--- a/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Program.cs
+++ b/samples/server/petstore/aspnetcore-8.0-nullableReferenceTypes/src/Org.OpenAPITools/Program.cs
@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace Org.OpenAPITools
+{
+    /// <summary>
+    /// Program
+    /// </summary>
+    public class Program
+    {
+        /// <summary>
+        /// Main
+        /// </summary>
+        /// <param name="args"></param>
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        /// <summary>
+        /// Create the host builder.
+        /// </summary>
+        /// <param name="args"></param>
+        /// <returns>IHostBuilder</returns>
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                   webBuilder.UseStartup<Startup>()
+                             .UseUrls("http://0.0.0.0:8080/");
+                });
+    }
+}
--- a/Show More
+++ b/Show More
				`@ -0,0 +1 @@`
				`<meta http-equiv="refresh" content="0;URL='./openapi/'" />`