to not override values if additional proeprties already present

* feat(go): Add a vendor extension to option out of generating the UnmarshalJSON method

* add generate unmarshal json option in go client generator

* update doc

---------

Co-authored-by: Radoslav Kotsev <radoslav.kotsev@cellpointmobile.com>

.github/workflows/openapi-generator.yaml

@@ -140,8 +140,23 @@ jobs:
         with:
           name: openapi-generator-cli.jar
           path: modules/openapi-generator-cli/target
+      - name: Delete samples that are entirely generated
+        run: |
+          rm -rf samples/client/petstore/csharp/generichost/net8/AllOf
+          rm -rf samples/client/petstore/csharp/generichost/net8/AnyOf
+          rm -rf samples/client/petstore/csharp/generichost/net8/AnyOfNoCompare
+          rm -rf samples/client/petstore/csharp/generichost/net8/FormModels
+          rm -rf samples/client/petstore/csharp/generichost/net8/NullReferenceTypes
+          rm -rf samples/client/petstore/csharp/generichost/net8/OneOf
+          rm -rf samples/client/petstore/csharp/generichost/net8/Petstore
+          rm -rf samples/client/petstore/csharp/generichost/net8/SourceGeneration
+          rm -rf samples/client/petstore/csharp/generichost/net8/UseDateTimeForDate
+          rm -rf samples/client/petstore/csharp/generichost/standard2.0/Petstore
       - name: Generate samples
-        run: bash bin/generate-samples.sh
+        run: |
+          bash bin/generate-samples.sh
+          # when a sample is deleted, you have to generate it twice for all files to get created
+          bash bin/generate-samples.sh
       - name: Verify git status
         run: |
           if [[ "$(git status --porcelain)" != "" ]]; then

.github/workflows/samples-dotnet.yaml

@@ -23,6 +23,7 @@ jobs:
         sample:
           - samples/client/petstore/csharp/generichost/net8/AllOf
           - samples/client/petstore/csharp/generichost/net8/AnyOf
+          - samples/client/petstore/csharp/generichost/net8/AnyOfNoCompare
           - samples/client/petstore/csharp/generichost/net8/FormModels
           - samples/client/petstore/csharp/generichost/net8/ManualPetstoreTests
           - samples/client/petstore/csharp/generichost/net8/ManualSourceGenerationTests

.github/workflows/samples-java-client-jdk11.yaml

@@ -73,6 +73,7 @@ jobs:
           - samples/client/petstore/java/resttemplate-swagger2/
           - samples/openapi3/client/petstore/java/jersey2-java8-swagger2/
           - samples/client/others/java/okhttp-gson-oneOf/
+          - samples/client/echo_api/java/okhttp-gson-user-defined-templates/
           - samples/client/others/java/resttemplate-useAbstractionForFiles/
           - samples/client/others/java/webclient-useAbstractionForFiles/
           - samples/client/others/java/jersey2-oneOf-duplicates/

.github/workflows/samples-php8.yaml

@@ -4,9 +4,11 @@ on:
   push:
     paths:
       - samples/server/petstore/php-symfony/SymfonyBundle-php/**
+      - samples/server/petstore/php-flight/**
   pull_request:
     paths:
       - samples/server/petstore/php-symfony/SymfonyBundle-php/**
+      - samples/server/petstore/php-flight/**
 jobs:
   build:
     name: Build PHP projects
@@ -17,6 +19,7 @@ jobs:
         sample:
           # servers
           - samples/server/petstore/php-symfony/SymfonyBundle-php/
+          - samples/server/petstore/php-flight/
     steps:
       - uses: actions/checkout@v4
       - name: Setup PHP with tools

.github/workflows/samples-scala.yaml

@@ -32,6 +32,7 @@ jobs:
           - samples/server/petstore/scalatra
           - samples/server/petstore/scala-finch # cannot be tested with jdk11
           - samples/server/petstore/scala-http4s-server
+          - samples/server/petstore/scala-cask
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4

.gitignore

@@ -85,6 +85,11 @@ samples/client/petstore/cpp-restsdk/CMakeCache.txt
 samples/client/petstore/cpp-restsdk/CMakeFiles/
 samples/client/petstore/cpp-restsdk/Makefile
 samples/client/petstore/cpp-restsdk/cmake_install.cmake
+samples/client/petstore/cpp-restsdk/client/CMakeFiles
+samples/client/petstore/cpp-restsdk/client/Makefile
+samples/client/petstore/cpp-restsdk/client/cmake_install.cmake
+samples/client/petstore/cpp-restsdk/client/CppRestPetstoreClientConfig.cmake
+samples/client/petstore/cpp-restsdk/client/CMakeCache.txt
 
 #Java/Android
 **/.gradle

CONTRIBUTING.md

@@ -31,7 +31,7 @@ Please file the pull request against the correct branch, e.g. `master` for non-b
 
 All the code generators can be found in [modules/openapi-generator/src/main/java/org/openapitools/codegen/languages](https://github.com/openapitools/openapi-generator/tree/master/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages)
 
-If you want to add a new generator, follow the [new-generator](https://openapi-generator.tech/docs/new-generator) guide. 
+If you want to add a new generator, follow the [new-generator](https://openapi-generator.tech/docs/new-generator) guide.
 
 ### Templates
 
@@ -84,6 +84,26 @@ For [Vendor Extensions](https://github.com/OAI/OpenAPI-Specification/blob/master
 - For language-specified vendor extension, put it in the form of `x-{lang}-{extension-name}`. e.g. `x-objc-operation-id`, `x-java-feign-retry-limit`
 - For a list of existing vendor extensions in use, please refer to https://github.com/openapitools/openapi-generator/wiki/Vendor-Extensions. If you've added new vendor extensions as part of your PR, please update the wiki page.
 
+### Building
+
+The `openapi-generator-cli` can be built using the following command. This will generate the `openapi-generator-cli.jar` in the `modules/openapi-generator-cli/target` directory without running the tests and generating the Javadocs.
+
+```shell
+./mvnw clean install -DskipTests -Dmaven.javadoc.skip=true
+```
+
+Or on Windows:
+
+```shell
+mvnw.cmd clean install -DskipTests -Dmaven.javadoc.skip=true
+```
+
+The binary can run via `java -jar`. For example:
+
+```shell
+java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar help
+```
+
 ### Testing
 
 To add test cases (optional) covering the change in the code generator, please refer to [modules/openapi-generator/src/test/java/org/openapitools/codegen](https://github.com/openapitools/openapi-generator/tree/master/modules/openapi-generator/src/test/java/org/openapitools/codegen)
@@ -112,5 +132,5 @@ See [OpenAPI Tools wiki](https://github.com/OpenAPITools/openapi-generator/wiki/
 - File a PR with meaningful title, description and commit messages
 - Make sure the option "Allow edits from maintainers" in the PR is selected so that the maintainers can update your PRs with minor fixes, if needed.
 - Recommended git settings
-   - `git config core.autocrlf input` to tell Git convert CRLF to LF on commit but not the other way around 
+   - `git config core.autocrlf input` to tell Git convert CRLF to LF on commit but not the other way around
 - To close an issue (e.g. issue 1542) automatically after a PR is merged, use keywords "fix", "close", "resolve" in the PR description, e.g. `fix #1542`. (Ref: [closing issues using keywords](https://help.github.com/articles/closing-issues-using-keywords/))

README.md

@@ -15,7 +15,7 @@
 
 <div align="center">
 
-[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`7.5.0`):
+[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`7.6.0`):
 [![Build Status](https://api.travis-ci.com/OpenAPITools/openapi-generator.svg?branch=master&status=passed)](https://app.travis-ci.com/github/OpenAPITools/openapi-generator/builds)
 [![Integration Test2](https://circleci.com/gh/OpenAPITools/openapi-generator.svg?style=shield)](https://circleci.com/gh/OpenAPITools/openapi-generator)
 [![Windows Test](https://ci.appveyor.com/api/projects/status/github/openapitools/openapi-generator?branch=master&svg=true&passingText=Windows%20Test%20-%20OK&failingText=Windows%20Test%20-%20Fails)](https://ci.appveyor.com/project/WilliamCheng/openapi-generator)
@@ -61,7 +61,7 @@ If you find OpenAPI Generator useful for work, please consider asking your compa
 [<img src="https://openapi-generator.tech/img/companies/bumpsh.png" width="128" height="128">](https://bump.sh/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
 [<img src="https://openapi-generator.tech/img/companies/bileto.png" width="128" height="128">](https://www.bileto.com/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
 [<img src="https://openapi-generator.tech/img/companies/bairesdev.png" width="128" height="128">](https://www.bairesdev.com/sponsoring-open-source-projects/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
-[<img src="https://openapi-generator.tech/img/companies/dmtech.jpeg" width="128" height="128">](https://www.dm-jobs.com/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
+[<img src="https://openapi-generator.tech/img/companies/dmtech.jpeg" width="128" height="128">](https://www.dmtech.de/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
 [<img src="https://openapi-generator.tech/img/companies/adyen.png" width="128" height="128">](https://adyen.com/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
 [<img src="https://openapi-generator.tech/img/companies/fornex.png" width="128" height="128">](https://fornex.com/?utm_source=openapi_generator&utm_medium=github_webpage&utm_campaign=sponsor)
 [<img src="https://openapi-generator.tech/img/companies/alloyautomation.png" width="128" height="128">](https://runalloy.com/signup?utm_source=github&utm_medium=referral&utm_campaign=1524_openapigenerator)
@@ -85,7 +85,7 @@ OpenAPI Generator allows generation of API client libraries (SDK generation), se
 |                                  | Languages/Frameworks                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
 | -------------------------------- |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | **API clients**                  | **ActionScript**, **Ada**, **Apex**, **Bash**, **C**, **C#** (.net 2.0, 3.5 or later, .NET Standard 1.3 - 2.1, .NET Core 3.1, .NET 5.0. Libraries: RestSharp, GenericHost, HttpClient), **C++** (Arduino, cpp-restsdk, Qt5, Tizen, Unreal Engine 4), **Clojure**, **Crystal**, **Dart**, **Elixir**, **Elm**, **Eiffel**, **Erlang**, **Go**, **Groovy**, **Haskell** (http-client, Servant), **Java** (Apache HttpClient 4.x, Apache HttpClient 5.x, Jersey2.x, OkHttp, Retrofit1.x, Retrofit2.x, Feign, RestTemplate, RESTEasy, Vertx, Google API Client Library for Java, Rest-assured, Spring 5 Web Client, MicroProfile Rest Client, Helidon), **Jetbrains HTTP Client**, **Julia**, **k6**, **Kotlin**, **Lua**, **N4JS**, **Nim**, **Node.js/JavaScript** (ES5, ES6, AngularJS with Google Closure Compiler annotations, Flow types, Apollo GraphQL DataStore), **Objective-C**, **OCaml**, **Perl**, **PHP**, **PowerShell**, **Python**, **R**, **Ruby**, **Rust** (hyper, reqwest, rust-server), **Scala** (akka, http4s, scalaz, sttp, swagger-async-httpclient, pekko), **Swift** (2.x, 3.x, 4.x, 5.x), **Typescript** (AngularJS, Angular (9.x - 17.x), Aurelia, Axios, Fetch, Inversify, jQuery, Nestjs, Node, redux-query, Rxjs), **XoJo**, **Zapier** |
-| **Server stubs**                 | **Ada**, **C#** (ASP.NET Core, Azure Functions), **C++** (Pistache, Restbed, Qt5 QHTTPEngine), **Erlang**, **F#** (Giraffe), **Go** (net/http, Gin, Echo), **Haskell** (Servant, Yesod), **Java** (MSF4J, Spring, Undertow, JAX-RS: CDI, CXF, Inflector, Jersey, RestEasy, Play Framework, [PKMST](https://github.com/ProKarma-Inc/pkmst-getting-started-examples), [Vert.x](https://vertx.io/), [Apache Camel](https://camel.apache.org/), [Helidon](https://helidon.io/)), **Julia**, **Kotlin** (Spring Boot, [Ktor](https://github.com/ktorio/ktor), [Vert.x](https://vertx.io/)), **PHP** (Laravel, Lumen, [Mezzio (fka Zend Expressive)](https://github.com/mezzio/mezzio), Slim, Silex, [Symfony](https://symfony.com/)), **Python** (FastAPI, Flask), **NodeJS**, **Ruby** (Sinatra, Rails5), **Rust** ([rust-server](https://openapi-generator.tech/docs/generators/rust-server/)), **Scala** (Akka, [Finch](https://github.com/finagle/finch), [Lagom](https://github.com/lagom/lagom), [Play](https://www.playframework.com/), Scalatra)                                                                                                                                                                                                                                               |
+| **Server stubs**                 | **Ada**, **C#** (ASP.NET Core, Azure Functions), **C++** (Pistache, Restbed, Qt5 QHTTPEngine), **Erlang**, **F#** (Giraffe), **Go** (net/http, Gin, Echo), **Haskell** (Servant, Yesod), **Java** (MSF4J, Spring, Undertow, JAX-RS: CDI, CXF, Inflector, Jersey, RestEasy, Play Framework, [PKMST](https://github.com/ProKarma-Inc/pkmst-getting-started-examples), [Vert.x](https://vertx.io/), [Apache Camel](https://camel.apache.org/), [Helidon](https://helidon.io/)), **Julia**, **Kotlin** (Spring Boot, [Ktor](https://github.com/ktorio/ktor), [Vert.x](https://vertx.io/)), **PHP** ([Flight](https://docs.flightphp.com/), Laravel, Lumen, [Mezzio (fka Zend Expressive)](https://github.com/mezzio/mezzio), Slim, Silex, [Symfony](https://symfony.com/)), **Python** (FastAPI, Flask), **NodeJS**, **Ruby** (Sinatra, Rails5), **Rust** ([rust-server](https://openapi-generator.tech/docs/generators/rust-server/)), **Scala** (Akka, [Finch](https://github.com/finagle/finch), [Lagom](https://github.com/lagom/lagom), [Play](https://www.playframework.com/), [Cask](https://github.com/com-lihaoyi/cask), Scalatra)                                                                                                                                                                                                                                               |
 | **API documentation generators** | **HTML**, **Confluence Wiki**, **Asciidoc**, **Markdown**, **PlantUML**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
 | **Configuration files**          | [**Apache2**](https://httpd.apache.org/)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
 | **Others**                       | **GraphQL**, **JMeter**, **Ktorm**, **MySQL Schema**, **Postman Collection**, **Protocol Buffer**, **WSDL**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
@@ -126,8 +126,8 @@ The OpenAPI Specification has undergone 3 revisions since initial creation in 20
 
 | OpenAPI Generator Version                                                                                                                                 | Release Date | Notes                                             |
 | --------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------------------------------------------- |
-| 7.5.0 (upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/7.5.0-SNAPSHOT/) | 12.04.2024   | Minor release with breaking changes (with fallback) |
-| [7.4.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v7.4.0) (latest stable release)                                                    | 11.03.2024   | Minor release with breaking changes (with fallback) |
+| 7.6.0 (upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/7.6.0-SNAPSHOT/) | 17.54.2024   | Minor release with breaking changes (with fallback) |
+| [7.5.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v7.5.0) (latest stable release)                                                    | 17.04.2024   | Minor release with breaking changes (with fallback) |
 | [6.6.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v6.6.0)                                                    | 11.05.2023   | Minor release with breaking changes (with fallback) |
 | [5.4.0](https://github.com/OpenAPITools/openapi-generator/releases/tag/v5.4.0)                                                    | 31.01.2022   | Minor release with breaking changes (with fallback) |
 | [4.3.1](https://github.com/OpenAPITools/openapi-generator/releases/tag/v4.3.1)                                                    | 06.05.2020   | Patch release (enhancements, bug fixes, etc)                       |
@@ -190,16 +190,16 @@ See the different versions of the [openapi-generator-cli](https://search.maven.o
 <!-- RELEASE_VERSION -->
 If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 11 runtime at a minimum):
 
-JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.4.0/openapi-generator-cli-7.4.0.jar`
+JAR location: `https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.5.0/openapi-generator-cli-7.5.0.jar`
 
 For **Mac/Linux** users:
 ```sh
-wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.4.0/openapi-generator-cli-7.4.0.jar -O openapi-generator-cli.jar
+wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.5.0/openapi-generator-cli-7.5.0.jar -O openapi-generator-cli.jar
 ```
 
 For **Windows** users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g.
 ```
-Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.4.0/openapi-generator-cli-7.4.0.jar
+Invoke-WebRequest -OutFile openapi-generator-cli.jar https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/7.5.0/openapi-generator-cli-7.5.0.jar
 ```
 
 After downloading the JAR, run `java -jar openapi-generator-cli.jar help` to show the usage.
@@ -705,6 +705,7 @@ Here are some companies/projects (alphabetical order) using OpenAPI Generator in
 - [REST United](https://restunited.com)
 - [Robocorp](https://www.robocorp.com)
 - [Robotinfra](https://www.robotinfra.com)
+- [SearchApi](https://www.searchapi.io/)
 - [SmartHR](https://smarthr.co.jp/)
 - [Sony Interactive Entertainment](https://www.sie.com/en/index.html)
 - [Splitit](https://www.splitit.com/)
@@ -931,6 +932,7 @@ Here are some companies/projects (alphabetical order) using OpenAPI Generator in
 - 2023-12-10 - [UnityでOpenAPI Generatorを使う](https://www.youtube.com/watch?v=CbNwKVV5LRM) by [Soup Tori](https://www.youtube.com/@souptori8417)
 - 2024-03-04 - [Generating TypeScript Types with OpenAPI for REST API Consumption](https://www.pullrequest.com/blog/generating-typescript-types-with-openapi-for-rest-api-consumption/) by [PullRequest](https://www.pullrequest.com/)
 - 2024-03-07 - [Fully typed Web Apps with OpenAPI (Part 1)](https://medium.com/@gfox1984/fully-typed-web-apps-with-openapi-part-1-595d55766670) by [Guillaume Renard](https://medium.com/@gfox1984)
+- 2024-03-08 - [Laravel OpenAPIによる "辛くない" スキーマ駆動開発](https://fortee.jp/phperkaigi-2024/proposal/9e2e6c38-d078-4efa-99b4-83ebf9033b34) by [KentarouTakeda](https://twitter.com/KentarouTakeda)
 
 ## [6 - About Us](#table-of-contents)
 
@@ -1090,6 +1092,7 @@ Here is a list of template creators:
    * Kotlin (Vertx): @Wooyme
    * Kotlin (JAX-RS): @anttileppa
    * NodeJS Express: @YishTish
+   * PHP Flight: @daniel-sc
    * PHP Laravel: @renepardon
    * PHP Lumen: @abcsun
    * PHP Mezzio (with Path Handler): @Articus
@@ -1102,6 +1105,7 @@ Here is a list of template creators:
    * Ruby on Rails 5: @zlx
    * Rust (rust-server): @metaswitch
    * Scala Akka: @Bouillie
+   * Scala Cask: @aaronp
    * Scala Finch: @jimschubert [:heart:](https://www.patreon.com/jimschubert)
    * Scala Lagom: @gmkumar2005
    * Scala Play: @adigerber

appveyor.yml

@@ -45,6 +45,7 @@ build_script:
 test_script:
   - dotnet test samples\client\petstore\csharp\generichost\net8\AllOf\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj
   - dotnet test samples\client\petstore\csharp\generichost\net8\AnyOf\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj
+  - dotnet test samples\client\petstore\csharp\generichost\net8\AnyOfNoCompare\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj
   - dotnet test samples\client\petstore\csharp\generichost\net8\FormModels\src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj
   - dotnet test samples\client\petstore\csharp\generichost\net8\ManualSourceGenerationTests\ManualTests.Latest.UseSourceGeneration\ManualTests.Latest.UseSourceGeneration.csproj
   - dotnet test samples\client\petstore\csharp\generichost\net8\ManualPetstoreTests\OpenAPIClient-generichost-manual-tests\OpenAPIClient-generichost-manual-tests.csproj

bin/configs/csharp-generichost-net8-anyOfNoCompare.yaml

@@ -0,0 +1,13 @@
+# for csharp generichost
+generatorName: csharp
+outputDir: samples/client/petstore/csharp/generichost/net8/AnyOfNoCompare
+inputSpec: modules/openapi-generator/src/test/resources/3_0/anyOf.yaml
+library: generichost
+templateDir: modules/openapi-generator/src/main/resources/csharp
+additionalProperties:
+  packageGuid: '{321C8C3F-0156-40C1-AE42-D59761FB9B6C}'
+  useCompareNetObjects: false
+  disallowAdditionalPropertiesIfNotPresent: false
+  nullableReferenceTypes: true
+  equatable: true
+  targetFramework: net8.0

bin/configs/java-microprofile-rest-client-3.0-jackson-with-xml.yaml

@@ -8,4 +8,5 @@ additionalProperties:
   serializationLibrary: jackson
   artifactId: microprofile-rest-client-3-jackson-with-xml
   configKey: petstore
-  microprofileRestClientVersion: "3.0"
+  microprofileRestClientVersion: "3.0"
+  hideGenerationTimestamp: true

bin/configs/java-microprofile-rest-client-3.0-jackson.yaml

@@ -7,4 +7,5 @@ additionalProperties:
   serializationLibrary: jackson
   artifactId: microprofile-rest-client-3-jackson
   configKey: petstore
-  microprofileRestClientVersion: "3.0"
+  microprofileRestClientVersion: "3.0"
+  hideGenerationTimestamp: true

bin/configs/java-okhttp-gson-swagger1.yaml

@@ -9,4 +9,5 @@ additionalProperties:
   useOneOfDiscriminatorLookup: "true"
   disallowAdditionalPropertiesIfNotPresent: false
   annotationLibrary: "swagger1"
-
+openapiNormalizer:
+  SET_TAGS_FOR_ALL_OPERATIONS: common

bin/configs/java-okhttp-user-defined-templates.yaml

@@ -0,0 +1,17 @@
+generatorName: java
+outputDir: samples/client/echo_api/java/okhttp-gson-user-defined-templates
+library: okhttp-gson
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/Java
+additionalProperties:
+  hideGenerationTimestamp: "true"
+files:
+  README.md:
+    destinationFilename: info.md
+  api_doc.mustache:
+    templateType: APIDocs
+    destinationFilename: Documentation.md
+  pojo.mustache:
+      templateType: Model
+      folder: modelCopy
+      destinationFilename: .java

bin/configs/jaxrs-spec-quarkus-mutiny.yaml

@@ -0,0 +1,15 @@
+generatorName: jaxrs-spec
+outputDir: samples/server/petstore/jaxrs-spec-quarkus-mutiny
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
+templateDir: modules/openapi-generator/src/main/resources/JavaJaxRS/spec
+additionalProperties:
+  artifactId: jaxrs-spec-petstore-server
+  serializableModel: "true"
+  hideGenerationTimestamp: "true"
+  implicitHeadersRegex: (api_key|enum_header_string)
+  generateBuilders: "true"
+  useMicroProfileOpenAPIAnnotations: "true"
+  useAsync: "true"
+  useMutiny: "true"
+  library: "quarkus"
+  dateLibrary: "java8-localdatetime"

bin/configs/kotlin-model-prefix-type-mapping-echo-api.yaml

@@ -12,4 +12,4 @@ additionalProperties:
   enumPropertyNaming: UPPERCASE
   serializationLibrary: gson
 openapiNormalizer:
-  SIMPLIFY_ONEOF_ANYOF=false
+  SIMPLIFY_ONEOF_ANYOF: false

bin/configs/kotlin-model-prefix-type-mapping.yaml

@@ -12,4 +12,4 @@ additionalProperties:
   enumPropertyNaming: UPPERCASE
   serializationLibrary: gson
 openapiNormalizer:
-  SIMPLIFY_ONEOF_ANYOF=false
+  SIMPLIFY_ONEOF_ANYOF: false

bin/configs/manual/rust-axum-petstore-with-fake-endpoints-models-for-testing.yaml

@@ -7,4 +7,6 @@ additionalProperties:
   hideGenerationTimestamp: "true"
   packageName: petstore-with-fake-endpoints-models-for-testing
   publishRustRegistry: crates-io
-enablePostProcessFile: true
+globalProperties:
+  skipFormModel: false
+enablePostProcessFile: true

bin/configs/manual/rust-axum-petstore.yaml

@@ -6,4 +6,6 @@ generateAliasAsModel: true
 additionalProperties:
   hideGenerationTimestamp: "true"
   packageName: petstore
+globalProperties:
+  skipFormModel: false
 enablePostProcessFile: true

bin/configs/php-flight.yaml

@@ -0,0 +1,6 @@
+generatorName: php-flight
+outputDir: samples/server/petstore/php-flight
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/php-flight
+additionalProperties:
+  hideGenerationTimestamp: "true"

bin/configs/scala-cask-petstore-new.yaml

@@ -0,0 +1,13 @@
+generatorName: scala-cask
+outputDir: samples/server/petstore/scala-cask
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/scala-cask
+additionalProperties:
+  hideGenerationTimestamp: "true"
+  artifactId: scala-cask-petstore
+  groupId: "cask.groupId"
+  package: "sample.cask"
+  modelPackage: "sample.cask.model"
+  apiPackage: "sample.cask.api"
+  gitRepoId: "sample-cask-repo"
+  gitUserId: "sample-cask-user"

bin/utils/test_file_list.yaml

@@ -10,7 +10,7 @@
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/ClientTest.java"
   sha256: db505f7801fef62c13a08a8e9ca1fc4c5c947ab46b46f12943139d353feacf17
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java"
-  sha256: c479b587cf0d51fa550eb81d33b277081807b87dc28649027d1164224c25ad0a
+  sha256: 8210bdaf06aae8dc46521515a8a0ef10e48c980fadd3efd95313e6c806f409c2
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/api/PetApiTest.java"
   sha256: 0d64cdc11809a7b5b952ccdad2bd91bd0045b3894d6fabf3e368fa0be12b8217
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/model/PetTest.java"

docs/contributing.md

@@ -35,7 +35,7 @@ Please file the pull request against the correct branch, e.g. `master` for non-b
 
 All the code generators can be found in [modules/openapi-generator/src/main/java/org/openapitools/codegen/languages](https://github.com/openapitools/openapi-generator/tree/master/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages)
 
-If you want to add a new generator, follow the [new-generator](https://openapi-generator.tech/docs/new-generator) guide. 
+If you want to add a new generator, follow the [new-generator](https://openapi-generator.tech/docs/new-generator) guide.
 
 ### Templates
 
@@ -88,6 +88,26 @@ For [Vendor Extensions](https://github.com/OAI/OpenAPI-Specification/blob/master
 - For language-specified vendor extension, put it in the form of `x-{lang}-{extension-name}`. e.g. `x-objc-operation-id`, `x-java-feign-retry-limit`
 - For a list of existing vendor extensions in use, please refer to https://github.com/openapitools/openapi-generator/wiki/Vendor-Extensions. If you've added new vendor extensions as part of your PR, please update the wiki page.
 
+### Building
+
+The `openapi-generator-cli` can be built using the following command. This will generate the `openapi-generator-cli.jar` in the `modules/openapi-generator-cli/target` directory without running the tests and generating the Javadocs.
+
+```shell
+./mvnw clean install -DskipTests -Dmaven.javadoc.skip=true
+```
+
+Or on Windows:
+
+```shell
+mvnw.cmd clean install -DskipTests -Dmaven.javadoc.skip=true
+```
+
+The binary can run via `java -jar`. For example:
+
+```shell
+java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar help
+```
+
 ### Testing
 
 To add test cases (optional) covering the change in the code generator, please refer to [modules/openapi-generator/src/test/java/org/openapitools/codegen](https://github.com/openapitools/openapi-generator/tree/master/modules/openapi-generator/src/test/java/org/openapitools/codegen)
@@ -116,5 +136,5 @@ See [OpenAPI Tools wiki](https://github.com/OpenAPITools/openapi-generator/wiki/
 - File a PR with meaningful title, description and commit messages
 - Make sure the option "Allow edits from maintainers" in the PR is selected so that the maintainers can update your PRs with minor fixes, if needed.
 - Recommended git settings
-   - `git config core.autocrlf input` to tell Git convert CRLF to LF on commit but not the other way around 
+   - `git config core.autocrlf input` to tell Git convert CRLF to LF on commit but not the other way around
 - To close an issue (e.g. issue 1542) automatically after a PR is merged, use keywords "fix", "close", "resolve" in the PR description, e.g. `fix #1542`. (Ref: [closing issues using keywords](https://help.github.com/articles/closing-issues-using-keywords/))

docs/customization.md

@@ -304,6 +304,8 @@ You can use also `config.yml` with following equivalent example:
 apiPackage: "petstore"
 ```
 
+Another example of config file can be found in [modules/openapi-generator/src/test/resources/sampleConfig.json](https://github.com/OpenAPITools/openapi-generator/blob/master/modules/openapi-generator/src/test/resources/sampleConfig.json)
+
 Supported config options can be different per language. Running `config-help -g {lang}` will show available options.
 **These options are applied via configuration file (e.g. config.json or config.yml) or by passing them with `-p {optionName}={optionValue}`**. (If `-p {optionName}` does not work, please open a [ticket](https://github.com/openapitools/openapi-generator/issues/new) and we'll look into it)
 

docs/generators.md

@@ -120,6 +120,7 @@ The following generators are available:
 * [kotlin-spring](generators/kotlin-spring.md)  
 * [kotlin-vertx (beta)](generators/kotlin-vertx.md)  
 * [nodejs-express-server (beta)](generators/nodejs-express-server.md)  
+* [php-flight (experimental)](generators/php-flight.md)  
 * [php-laravel](generators/php-laravel.md)  
 * [php-lumen](generators/php-lumen.md)  
 * [php-mezzio-ph](generators/php-mezzio-ph.md)  
@@ -134,6 +135,7 @@ The following generators are available:
 * [rust-axum (beta)](generators/rust-axum.md)  
 * [rust-server](generators/rust-server.md)  
 * [scala-akka-http-server (beta)](generators/scala-akka-http-server.md)  
+* [scala-cask](generators/scala-cask.md)  
 * [scala-finch](generators/scala-finch.md)  
 * [scala-http4s-server](generators/scala-http4s-server.md)  
 * [scala-lagom-server](generators/scala-lagom-server.md)  

docs/generators/cpp-restsdk.md

@@ -32,6 +32,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 
 | Type/Alias | Imports |
 | ---------- | ------- |
+|AnyType|#include "AnyType.h"|
 |HttpContent|#include "HttpContent.h"|
 |Object|#include "Object.h"|
 |std::map|#include <map>|
@@ -184,7 +185,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |Uuid|✗|
 |Array|✓|OAS2,OAS3
 |Null|✗|OAS3
-|AnyType|✗|OAS2,OAS3
+|AnyType|✓|OAS2,OAS3
 |Object|✓|OAS2,OAS3
 |Maps|✓|ToolingExtension
 |CollectionFormat|✓|OAS2

docs/generators/go.md

@@ -22,6 +22,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |enumClassPrefix|Prefix enum with class name| |false|
 |generateInterfaces|Generate interfaces for api classes| |false|
 |generateMarshalJSON|Generate MarshalJSON method| |true|
+|generateUnmarshalJSON|Generate UnmarshalJSON method| |true|
 |hideGenerationTimestamp|Hides the generation timestamp when files are generated.| |true|
 |isGoSubmodule|whether the generated Go module is a submodule| |false|
 |packageName|Go package name (convention: lowercase).| |openapi|

docs/generators/groovy.md

@@ -135,6 +135,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-camel.md

@@ -174,6 +174,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-helidon-client.md

@@ -128,6 +128,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-helidon-server.md

@@ -130,6 +130,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-inflector.md

@@ -132,6 +132,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-micronaut-client.md

@@ -153,6 +153,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-micronaut-server.md

@@ -153,6 +153,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-msf4j.md

@@ -138,6 +138,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-pkmst.md

@@ -139,6 +139,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-play-framework.md

@@ -142,6 +142,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-undertow-server.md

@@ -132,6 +132,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-vertx-web.md

@@ -132,6 +132,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-vertx.md

@@ -135,6 +135,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java-wiremock.md

@@ -132,6 +132,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/java.md

@@ -47,7 +47,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |dynamicOperations|Generate operations dynamically at runtime from an OAS| |false|
 |ensureUniqueParams|Whether to ensure parameter names are unique in an operation (rename parameters that are not).| |true|
 |enumUnknownDefaultCase|If the server adds new enum cases, that are unknown by an old spec/client, the client will fail to parse the network response.With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the server sends an enum case that is not known by the client/spec, they can safely fallback to this case.|<dl><dt>**false**</dt><dd>No changes to the enum's are made, this is the default option.</dd><dt>**true**</dt><dd>With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the enum case sent by the server is not known by the client/spec, can safely be decoded to this case.</dd></dl>|false|
-|errorObjectType|Error Object type. (This option is for okhttp-gson-next-gen only)| |null|
+|errorObjectType|Error Object type. (This option is for okhttp-gson only)| |null|
 |generateClientAsBean|For resttemplate, configure whether to create `ApiClient.java` and Apis clients as bean (with `@Component` annotation).| |false|
 |gradleProperties|Append additional Gradle properties to the gradle.properties file| |null|
 |groupId|groupId in generated pom.xml| |org.openapitools|
@@ -164,6 +164,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-cxf-cdi.md

@@ -78,6 +78,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |useBeanValidation|Use BeanValidation API annotations| |true|
 |useJakartaEe|whether to use Jakarta EE namespace instead of javax| |false|
 |useMicroProfileOpenAPIAnnotations|Whether to generate Microprofile OpenAPI annotations. Only valid when library is set to quarkus.| |false|
+|useMutiny|Whether to use Smallrye Mutiny instead of CompletionStage for asynchronous computation. Only valid when library is set to quarkus.| |false|
 |useOneOfInterfaces|whether to use a java interface to describe a set of oneOf options, where each option is a class that implements the interface| |false|
 |useSwaggerAnnotations|Whether to generate Swagger annotations.| |true|
 |useTags|use tags for creating interface and controller classnames| |false|
@@ -146,6 +147,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-cxf-client.md

@@ -137,6 +137,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-cxf-extended.md

@@ -160,6 +160,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-cxf.md

@@ -155,6 +155,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-jersey.md

@@ -138,6 +138,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-resteasy-eap.md

@@ -139,6 +139,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-resteasy.md

@@ -138,6 +138,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/jaxrs-spec.md

@@ -78,6 +78,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 |useBeanValidation|Use BeanValidation API annotations| |true|
 |useJakartaEe|whether to use Jakarta EE namespace instead of javax| |false|
 |useMicroProfileOpenAPIAnnotations|Whether to generate Microprofile OpenAPI annotations. Only valid when library is set to quarkus.| |false|
+|useMutiny|Whether to use Smallrye Mutiny instead of CompletionStage for asynchronous computation. Only valid when library is set to quarkus.| |false|
 |useOneOfInterfaces|whether to use a java interface to describe a set of oneOf options, where each option is a class that implements the interface| |false|
 |useSwaggerAnnotations|Whether to generate Swagger annotations.| |true|
 |useTags|use tags for creating interface and controller classnames| |false|
@@ -146,6 +147,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

docs/generators/php-flight.md

@@ -0,0 +1,270 @@
+---
+title: Documentation for the php-flight Generator
+---
+
+## METADATA
+
+| Property | Value | Notes |
+| -------- | ----- | ----- |
+| generator name | php-flight | pass this to the generate command after -g |
+| generator stability | EXPERIMENTAL | |
+| generator type | SERVER | |
+| generator language | PHP | |
+| generator default templating engine | mustache | |
+| helpTxt | Generates a PHP Flight Framework server library. | |
+
+## CONFIG OPTIONS
+These options may be applied as additional-properties (cli) or configOptions (plugins). Refer to [configuration docs](https://openapi-generator.tech/docs/configuration) for more details.
+
+| Option | Description | Values | Default |
+| ------ | ----------- | ------ | ------- |
+|allowUnicodeIdentifiers|boolean, toggles whether unicode identifiers are allowed in names or not, default is false| |false|
+|apiPackage|package for generated api classes| |null|
+|artifactUrl|artifact URL in generated pom.xml| |null|
+|artifactVersion|The version to use in the composer package version field. e.g. 1.2.3| |null|
+|composerPackageName|The name to use in the composer package name field. e.g. `vendor/project` (must be lowercase and consist of words separated by `-`, `.` or `_`).| |null|
+|developerOrganization|developer organization in generated pom.xml| |null|
+|developerOrganizationUrl|developer organization URL in generated pom.xml| |null|
+|disallowAdditionalPropertiesIfNotPresent|If false, the 'additionalProperties' implementation (set to true by default) is compliant with the OAS and JSON schema specifications. If true (default), keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default.|<dl><dt>**false**</dt><dd>The 'additionalProperties' implementation is compliant with the OAS and JSON schema specifications.</dd><dt>**true**</dt><dd>Keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default.</dd></dl>|true|
+|ensureUniqueParams|Whether to ensure parameter names are unique in an operation (rename parameters that are not).| |true|
+|enumUnknownDefaultCase|If the server adds new enum cases, that are unknown by an old spec/client, the client will fail to parse the network response.With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the server sends an enum case that is not known by the client/spec, they can safely fallback to this case.|<dl><dt>**false**</dt><dd>No changes to the enum's are made, this is the default option.</dd><dt>**true**</dt><dd>With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the enum case sent by the server is not known by the client/spec, can safely be decoded to this case.</dd></dl>|false|
+|hideGenerationTimestamp|Hides the generation timestamp when files are generated.| |true|
+|invokerPackage|The main namespace to use for all classes. e.g. Yay\Pets| |null|
+|legacyDiscriminatorBehavior|Set to false for generators with better support for discriminators. (Python, Java, Go, PowerShell, C# have this enabled by default).|<dl><dt>**true**</dt><dd>The mapping in the discriminator includes descendent schemas that allOf inherit from self and the discriminator mapping schemas in the OAS document.</dd><dt>**false**</dt><dd>The mapping in the discriminator includes any descendent schemas that allOf inherit from self, any oneOf schemas, any anyOf schemas, any x-discriminator-values, and the discriminator mapping schemas in the OAS document AND Codegen validates that oneOf and anyOf schemas contain the required discriminator and throws an error if the discriminator is missing.</dd></dl>|true|
+|licenseName|The name of the license| |null|
+|modelPackage|package for generated models| |null|
+|packageName|The main package name for classes. e.g. GeneratedPetstore| |null|
+|prependFormOrBodyParameters|Add form or body parameters to the beginning of the parameter list.| |false|
+|sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
+|sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
+|srcBasePath|The directory to serve as source root.| |null|
+|variableNamingConvention|naming convention of variable name, e.g. camelCase.| |camelCase|
+
+## IMPORT MAPPING
+
+| Type/Alias | Imports |
+| ---------- | ------- |
+
+
+## INSTANTIATION TYPES
+
+| Type/Alias | Instantiated By |
+| ---------- | --------------- |
+|array|array|
+|map|array|
+
+
+## LANGUAGE PRIMITIVES
+
+<ul class="column-ul">
+<li>\DateTime</li>
+<li>\SplFileObject</li>
+<li>array</li>
+<li>bool</li>
+<li>boolean</li>
+<li>byte</li>
+<li>float</li>
+<li>int</li>
+<li>integer</li>
+<li>mixed</li>
+<li>number</li>
+<li>object</li>
+<li>string</li>
+<li>void</li>
+</ul>
+
+## RESERVED WORDS
+
+<ul class="column-ul">
+<li>__halt_compiler</li>
+<li>_header_accept</li>
+<li>_tempbody</li>
+<li>abstract</li>
+<li>and</li>
+<li>array</li>
+<li>as</li>
+<li>break</li>
+<li>callable</li>
+<li>case</li>
+<li>catch</li>
+<li>class</li>
+<li>clone</li>
+<li>const</li>
+<li>continue</li>
+<li>declare</li>
+<li>default</li>
+<li>die</li>
+<li>do</li>
+<li>echo</li>
+<li>else</li>
+<li>elseif</li>
+<li>empty</li>
+<li>enddeclare</li>
+<li>endfor</li>
+<li>endforeach</li>
+<li>endif</li>
+<li>endswitch</li>
+<li>endwhile</li>
+<li>eval</li>
+<li>exit</li>
+<li>extends</li>
+<li>final</li>
+<li>for</li>
+<li>foreach</li>
+<li>formparams</li>
+<li>function</li>
+<li>global</li>
+<li>goto</li>
+<li>headerparams</li>
+<li>httpbody</li>
+<li>if</li>
+<li>implements</li>
+<li>include</li>
+<li>include_once</li>
+<li>instanceof</li>
+<li>insteadof</li>
+<li>interface</li>
+<li>isset</li>
+<li>list</li>
+<li>namespace</li>
+<li>new</li>
+<li>or</li>
+<li>print</li>
+<li>private</li>
+<li>protected</li>
+<li>public</li>
+<li>queryparams</li>
+<li>require</li>
+<li>require_once</li>
+<li>resourcepath</li>
+<li>return</li>
+<li>static</li>
+<li>switch</li>
+<li>throw</li>
+<li>trait</li>
+<li>try</li>
+<li>unset</li>
+<li>use</li>
+<li>var</li>
+<li>while</li>
+<li>xor</li>
+</ul>
+
+## FEATURE SET
+
+
+### Client Modification Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasePath|✗|ToolingExtension
+|Authorizations|✗|ToolingExtension
+|UserAgent|✗|ToolingExtension
+|MockServer|✗|ToolingExtension
+
+### Data Type Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Custom|✗|OAS2,OAS3
+|Int32|✓|OAS2,OAS3
+|Int64|✓|OAS2,OAS3
+|Float|✓|OAS2,OAS3
+|Double|✓|OAS2,OAS3
+|Decimal|✓|ToolingExtension
+|String|✓|OAS2,OAS3
+|Byte|✓|OAS2,OAS3
+|Binary|✓|OAS2,OAS3
+|Boolean|✓|OAS2,OAS3
+|Date|✓|OAS2,OAS3
+|DateTime|✓|OAS2,OAS3
+|Password|✓|OAS2,OAS3
+|File|✓|OAS2
+|Uuid|✗|
+|Array|✓|OAS2,OAS3
+|Null|✗|OAS3
+|AnyType|✗|OAS2,OAS3
+|Object|✓|OAS2,OAS3
+|Maps|✓|ToolingExtension
+|CollectionFormat|✓|OAS2
+|CollectionFormatMulti|✓|OAS2
+|Enum|✓|OAS2,OAS3
+|ArrayOfEnum|✓|ToolingExtension
+|ArrayOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfPrimitives|✓|ToolingExtension
+|ArrayOfCollectionOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfEnum|✓|ToolingExtension
+|MapOfEnum|✗|ToolingExtension
+|MapOfModel|✗|ToolingExtension
+|MapOfCollectionOfPrimitives|✓|ToolingExtension
+|MapOfCollectionOfModel|✗|ToolingExtension
+|MapOfCollectionOfEnum|✗|ToolingExtension
+
+### Documentation Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Readme|✓|ToolingExtension
+|Model|✓|ToolingExtension
+|Api|✓|ToolingExtension
+
+### Global Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Host|✓|OAS2,OAS3
+|BasePath|✓|OAS2,OAS3
+|Info|✓|OAS2,OAS3
+|Schemes|✗|OAS2,OAS3
+|PartialSchemes|✓|OAS2,OAS3
+|Consumes|✓|OAS2
+|Produces|✓|OAS2
+|ExternalDocumentation|✓|OAS2,OAS3
+|Examples|✓|OAS2,OAS3
+|XMLStructureDefinitions|✗|OAS2,OAS3
+|MultiServer|✗|OAS3
+|ParameterizedServer|✗|OAS3
+|ParameterStyling|✗|OAS3
+|Callbacks|✗|OAS3
+|LinkObjects|✗|OAS3
+
+### Parameter Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Path|✓|OAS2,OAS3
+|Query|✓|OAS2,OAS3
+|Header|✓|OAS2,OAS3
+|Body|✓|OAS2
+|FormUnencoded|✗|OAS2
+|FormMultipart|✗|OAS2
+|Cookie|✗|OAS3
+
+### Schema Support Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Simple|✓|OAS2,OAS3
+|Composite|✓|OAS2,OAS3
+|Polymorphism|✗|OAS2,OAS3
+|Union|✗|OAS3
+|allOf|✗|OAS2,OAS3
+|anyOf|✗|OAS3
+|oneOf|✗|OAS3
+|not|✗|OAS3
+
+### Security Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasicAuth|✓|OAS2,OAS3
+|ApiKey|✓|OAS2,OAS3
+|OpenIDConnect|✗|OAS3
+|BearerToken|✓|OAS3
+|OAuth2_Implicit|✓|OAS2,OAS3
+|OAuth2_Password|✗|OAS2,OAS3
+|OAuth2_ClientCredentials|✗|OAS2,OAS3
+|OAuth2_AuthorizationCode|✗|OAS2,OAS3
+|SignatureAuth|✗|OAS3
+|AWSV4Signature|✗|ToolingExtension
+
+### Wire Format Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|JSON|✓|OAS2,OAS3
+|XML|✗|OAS2,OAS3
+|PROTOBUF|✗|ToolingExtension
+|Custom|✗|OAS2,OAS3

docs/generators/python-aiohttp.md

@@ -91,6 +91,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>except</li>
 <li>exec</li>
 <li>false</li>
+<li>field</li>
 <li>finally</li>
 <li>float</li>
 <li>for</li>

docs/generators/python-blueplanet.md

@@ -91,6 +91,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>except</li>
 <li>exec</li>
 <li>false</li>
+<li>field</li>
 <li>finally</li>
 <li>float</li>
 <li>for</li>

docs/generators/python-flask.md

@@ -91,6 +91,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>except</li>
 <li>exec</li>
 <li>false</li>
+<li>field</li>
 <li>finally</li>
 <li>float</li>
 <li>for</li>

docs/generators/python.md

@@ -88,6 +88,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>except</li>
 <li>exec</li>
 <li>false</li>
+<li>field</li>
 <li>finally</li>
 <li>float</li>
 <li>for</li>

docs/generators/scala-cask.md

@@ -0,0 +1,262 @@
+---
+title: Documentation for the scala-cask Generator
+---
+
+## METADATA
+
+| Property | Value | Notes |
+| -------- | ----- | ----- |
+| generator name | scala-cask | pass this to the generate command after -g |
+| generator stability | STABLE | |
+| generator type | SERVER | |
+| generator language | Scala | |
+| generator default templating engine | mustache | |
+| helpTxt | Generates a scala-cask server. | |
+
+## CONFIG OPTIONS
+These options may be applied as additional-properties (cli) or configOptions (plugins). Refer to [configuration docs](https://openapi-generator.tech/docs/configuration) for more details.
+
+| Option | Description | Values | Default |
+| ------ | ----------- | ------ | ------- |
+|allowUnicodeIdentifiers|boolean, toggles whether unicode identifiers are allowed in names or not, default is false| |false|
+|apiPackage|package for generated api classes| |null|
+|artifactId|artifactId in generated pom.xml. This also becomes part of the generated library's filename| |null|
+|artifactVersion|artifact version in generated pom.xml. This also becomes part of the generated library's filename. If not provided, uses the version from the OpenAPI specification file. If that's also not present, uses the default value of the artifactVersion option.| |null|
+|dateLibrary|Option. Date library to use|<dl><dt>**joda**</dt><dd>Joda (for legacy app)</dd><dt>**java8**</dt><dd>Java 8 native JSR310 (preferred for JDK 1.8+)</dd></dl>|java8|
+|disallowAdditionalPropertiesIfNotPresent|If false, the 'additionalProperties' implementation (set to true by default) is compliant with the OAS and JSON schema specifications. If true (default), keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default.|<dl><dt>**false**</dt><dd>The 'additionalProperties' implementation is compliant with the OAS and JSON schema specifications.</dd><dt>**true**</dt><dd>Keep the old (incorrect) behaviour that 'additionalProperties' is set to false by default.</dd></dl>|true|
+|ensureUniqueParams|Whether to ensure parameter names are unique in an operation (rename parameters that are not).| |true|
+|enumUnknownDefaultCase|If the server adds new enum cases, that are unknown by an old spec/client, the client will fail to parse the network response.With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the server sends an enum case that is not known by the client/spec, they can safely fallback to this case.|<dl><dt>**false**</dt><dd>No changes to the enum's are made, this is the default option.</dd><dt>**true**</dt><dd>With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the enum case sent by the server is not known by the client/spec, can safely be decoded to this case.</dd></dl>|false|
+|gitRepoId|Git repo ID, e.g. openapi-generator.| |null|
+|gitUserId|Git user ID, e.g. openapitools.| |null|
+|groupId|groupId in generated pom.xml| |null|
+|legacyDiscriminatorBehavior|Set to false for generators with better support for discriminators. (Python, Java, Go, PowerShell, C# have this enabled by default).|<dl><dt>**true**</dt><dd>The mapping in the discriminator includes descendent schemas that allOf inherit from self and the discriminator mapping schemas in the OAS document.</dd><dt>**false**</dt><dd>The mapping in the discriminator includes any descendent schemas that allOf inherit from self, any oneOf schemas, any anyOf schemas, any x-discriminator-values, and the discriminator mapping schemas in the OAS document AND Codegen validates that oneOf and anyOf schemas contain the required discriminator and throws an error if the discriminator is missing.</dd></dl>|true|
+|modelPackage|package for generated models| |null|
+|modelPropertyNaming|Naming convention for the property: 'camelCase', 'PascalCase', 'snake_case' and 'original', which keeps the original name| |camelCase|
+|packageName|packageDescription| |null|
+|prependFormOrBodyParameters|Add form or body parameters to the beginning of the parameter list.| |false|
+|sortModelPropertiesByRequiredFlag|Sort model properties to place required parameters before optional parameters.| |true|
+|sortParamsByRequiredFlag|Sort method arguments to place required parameters before optional parameters.| |true|
+|sourceFolder|source folder for generated code| |null|
+
+## IMPORT MAPPING
+
+| Type/Alias | Imports |
+| ---------- | ------- |
+|Array|java.util.List|
+|ArrayList|java.util.ArrayList|
+|Date|java.util.Date|
+|DateTime|org.joda.time.*|
+|File|java.io.File|
+|HashMap|java.util.HashMap|
+|ListBuffer|scala.collection.mutable.ListBuffer|
+|ListSet|scala.collection.immutable.ListSet|
+|LocalDate|org.joda.time.*|
+|LocalDateTime|org.joda.time.*|
+|LocalTime|org.joda.time.*|
+|Seq|scala.collection.immutable.Seq|
+|Set|scala.collection.immutable.Set|
+|Timestamp|java.sql.Timestamp|
+|URI|java.net.URI|
+|UUID|java.util.UUID|
+
+
+## INSTANTIATION TYPES
+
+| Type/Alias | Instantiated By |
+| ---------- | --------------- |
+|set|Set|
+
+
+## LANGUAGE PRIMITIVES
+
+<ul class="column-ul">
+<li>Any</li>
+<li>Array</li>
+<li>Boolean</li>
+<li>Byte</li>
+<li>Double</li>
+<li>Float</li>
+<li>Int</li>
+<li>List</li>
+<li>Long</li>
+<li>Map</li>
+<li>Object</li>
+<li>Seq</li>
+<li>String</li>
+<li>boolean</li>
+</ul>
+
+## RESERVED WORDS
+
+<ul class="column-ul">
+<li>abstract</li>
+<li>assert</li>
+<li>boolean</li>
+<li>break</li>
+<li>byte</li>
+<li>case</li>
+<li>catch</li>
+<li>char</li>
+<li>class</li>
+<li>const</li>
+<li>continue</li>
+<li>default</li>
+<li>do</li>
+<li>double</li>
+<li>else</li>
+<li>enum</li>
+<li>extends</li>
+<li>final</li>
+<li>finally</li>
+<li>float</li>
+<li>for</li>
+<li>goto</li>
+<li>if</li>
+<li>implements</li>
+<li>import</li>
+<li>instanceof</li>
+<li>int</li>
+<li>interface</li>
+<li>long</li>
+<li>native</li>
+<li>new</li>
+<li>package</li>
+<li>private</li>
+<li>protected</li>
+<li>public</li>
+<li>return</li>
+<li>short</li>
+<li>static</li>
+<li>strictfp</li>
+<li>super</li>
+<li>switch</li>
+<li>synchronized</li>
+<li>this</li>
+<li>throw</li>
+<li>throws</li>
+<li>transient</li>
+<li>try</li>
+<li>type</li>
+<li>void</li>
+<li>volatile</li>
+<li>while</li>
+</ul>
+
+## FEATURE SET
+
+
+### Client Modification Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasePath|✗|ToolingExtension
+|Authorizations|✗|ToolingExtension
+|UserAgent|✗|ToolingExtension
+|MockServer|✗|ToolingExtension
+
+### Data Type Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Custom|✗|OAS2,OAS3
+|Int32|✓|OAS2,OAS3
+|Int64|✓|OAS2,OAS3
+|Float|✓|OAS2,OAS3
+|Double|✓|OAS2,OAS3
+|Decimal|✓|ToolingExtension
+|String|✓|OAS2,OAS3
+|Byte|✓|OAS2,OAS3
+|Binary|✓|OAS2,OAS3
+|Boolean|✓|OAS2,OAS3
+|Date|✓|OAS2,OAS3
+|DateTime|✓|OAS2,OAS3
+|Password|✓|OAS2,OAS3
+|File|✓|OAS2
+|Uuid|✗|
+|Array|✓|OAS2,OAS3
+|Null|✗|OAS3
+|AnyType|✗|OAS2,OAS3
+|Object|✓|OAS2,OAS3
+|Maps|✓|ToolingExtension
+|CollectionFormat|✓|OAS2
+|CollectionFormatMulti|✓|OAS2
+|Enum|✓|OAS2,OAS3
+|ArrayOfEnum|✓|ToolingExtension
+|ArrayOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfPrimitives|✓|ToolingExtension
+|ArrayOfCollectionOfModel|✓|ToolingExtension
+|ArrayOfCollectionOfEnum|✓|ToolingExtension
+|MapOfEnum|✓|ToolingExtension
+|MapOfModel|✓|ToolingExtension
+|MapOfCollectionOfPrimitives|✓|ToolingExtension
+|MapOfCollectionOfModel|✓|ToolingExtension
+|MapOfCollectionOfEnum|✓|ToolingExtension
+
+### Documentation Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Readme|✗|ToolingExtension
+|Model|✓|ToolingExtension
+|Api|✓|ToolingExtension
+
+### Global Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Host|✓|OAS2,OAS3
+|BasePath|✓|OAS2,OAS3
+|Info|✓|OAS2,OAS3
+|Schemes|✗|OAS2,OAS3
+|PartialSchemes|✓|OAS2,OAS3
+|Consumes|✓|OAS2
+|Produces|✓|OAS2
+|ExternalDocumentation|✓|OAS2,OAS3
+|Examples|✓|OAS2,OAS3
+|XMLStructureDefinitions|✗|OAS2,OAS3
+|MultiServer|✗|OAS3
+|ParameterizedServer|✗|OAS3
+|ParameterStyling|✗|OAS3
+|Callbacks|✓|OAS3
+|LinkObjects|✗|OAS3
+
+### Parameter Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Path|✓|OAS2,OAS3
+|Query|✓|OAS2,OAS3
+|Header|✓|OAS2,OAS3
+|Body|✓|OAS2
+|FormUnencoded|✓|OAS2
+|FormMultipart|✓|OAS2
+|Cookie|✓|OAS3
+
+### Schema Support Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|Simple|✓|OAS2,OAS3
+|Composite|✓|OAS2,OAS3
+|Polymorphism|✓|OAS2,OAS3
+|Union|✗|OAS3
+|allOf|✗|OAS2,OAS3
+|anyOf|✗|OAS3
+|oneOf|✗|OAS3
+|not|✗|OAS3
+
+### Security Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|BasicAuth|✓|OAS2,OAS3
+|ApiKey|✓|OAS2,OAS3
+|OpenIDConnect|✗|OAS3
+|BearerToken|✓|OAS3
+|OAuth2_Implicit|✓|OAS2,OAS3
+|OAuth2_Password|✓|OAS2,OAS3
+|OAuth2_ClientCredentials|✓|OAS2,OAS3
+|OAuth2_AuthorizationCode|✓|OAS2,OAS3
+|SignatureAuth|✗|OAS3
+|AWSV4Signature|✗|ToolingExtension
+
+### Wire Format Feature
+| Name | Supported | Defined By |
+| ---- | --------- | ---------- |
+|JSON|✓|OAS2,OAS3
+|XML|✓|OAS2,OAS3
+|PROTOBUF|✗|ToolingExtension
+|Custom|✗|OAS2,OAS3

docs/generators/spring.md

@@ -167,6 +167,7 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 ## RESERVED WORDS
 
 <ul class="column-ul">
+<li>_</li>
 <li>abstract</li>
 <li>apiclient</li>
 <li>apiexception</li>

modules/openapi-generator-cli/pom.xml

@@ -4,7 +4,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.5.0-SNAPSHOT</version>
+        <version>7.6.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../..</relativePath>
     </parent>

modules/openapi-generator-cli/src/main/java/org/openapitools/codegen/cmd/Generate.java

@@ -515,11 +515,11 @@ public class Generate extends OpenApiGeneratorCommand {
         applyModelNameMappingsKvpList(modelNameMappings, configurator);
         applyEnumNameMappingsKvpList(enumNameMappings, configurator);
         applyOperationIdNameMappingsKvpList(operationIdNameMappings, configurator);
-        applyOpenAPINormalizerKvpList(openapiNormalizer, configurator);
+        applyOpenapiNormalizerKvpList(openapiNormalizer, configurator);
         applyTypeMappingsKvpList(typeMappings, configurator);
         applyAdditionalPropertiesKvpList(additionalProperties, configurator);
         applyLanguageSpecificPrimitivesCsvList(languageSpecificPrimitives, configurator);
-        applyOpenAPIGeneratorIgnoreListCsvList(openapiGeneratorIgnoreList, configurator);
+        applyOpenapiGeneratorIgnoreListCsvList(openapiGeneratorIgnoreList, configurator);
         applyReservedWordsMappingsKvpList(reservedWordsMappings, configurator);
         applyServerVariablesKvpList(serverVariableOverrides, configurator);
 

modules/openapi-generator-core/pom.xml

@@ -6,7 +6,7 @@
     <artifactId>openapi-generator-project</artifactId>
     <groupId>org.openapitools</groupId>
     <!-- RELEASE_VERSION -->
-    <version>7.5.0-SNAPSHOT</version>
+    <version>7.6.0-SNAPSHOT</version>
     <!-- /RELEASE_VERSION -->
     <relativePath>../..</relativePath>
   </parent>

modules/openapi-generator-core/src/main/java/org/openapitools/codegen/config/GeneratorSettings.java

@@ -321,7 +321,7 @@ public final class GeneratorSettings implements Serializable {
      *
      * @return a map of rules
      */
-    public Map<String, String> getOpenAPINormalizer() {
+    public Map<String, String> getOpenapiNormalizer() {
         return openapiNormalizer;
     }
 
@@ -346,7 +346,7 @@ public final class GeneratorSettings implements Serializable {
      *
      * @return the openapi generator ignore list
      */
-    public Set<String> getOpenAPIGeneratorIgnoreList() {
+    public Set<String> getOpenapiGeneratorIgnoreList() {
         return openapiGeneratorIgnoreList;
     }
 
@@ -614,14 +614,14 @@ public final class GeneratorSettings implements Serializable {
         if (copy.getOperationIdNameMappings() != null) {
             builder.operationIdNameMappings.putAll(copy.getOperationIdNameMappings());
         }
-        if (copy.getOpenAPINormalizer() != null) {
-            builder.openapiNormalizer.putAll(copy.getOpenAPINormalizer());
+        if (copy.getOpenapiNormalizer() != null) {
+            builder.openapiNormalizer.putAll(copy.getOpenapiNormalizer());
         }
         if (copy.getLanguageSpecificPrimitives() != null) {
             builder.languageSpecificPrimitives.addAll(copy.getLanguageSpecificPrimitives());
         }
-        if (copy.getOpenAPIGeneratorIgnoreList() != null) {
-            builder.openapiGeneratorIgnoreList.addAll(copy.getOpenAPIGeneratorIgnoreList());
+        if (copy.getOpenapiGeneratorIgnoreList() != null) {
+            builder.openapiGeneratorIgnoreList.addAll(copy.getOpenapiGeneratorIgnoreList());
         }
         if (copy.getReservedWordsMappings() != null) {
             builder.reservedWordsMappings.putAll(copy.getReservedWordsMappings());
@@ -1152,7 +1152,7 @@ public final class GeneratorSettings implements Serializable {
          * @param openapiNormalizer the {@code openapiNormalizer} to set
          * @return a reference to this Builder
          */
-        public Builder withOpenAPINormalizer(Map<String, String> openapiNormalizer) {
+        public Builder withOpenapiNormalizer(Map<String, String> openapiNormalizer) {
             this.openapiNormalizer = openapiNormalizer;
             return this;
         }
@@ -1164,7 +1164,7 @@ public final class GeneratorSettings implements Serializable {
          * @param value The value of the OpenAPI normalizer rule
          * @return a reference to this Builder
          */
-        public Builder withOpenAPINormalizer(String key, String value) {
+        public Builder withOpenapiNormalizer(String key, String value) {
             if (this.openapiNormalizer == null) {
                 this.openapiNormalizer = new HashMap<>();
             }
@@ -1203,7 +1203,7 @@ public final class GeneratorSettings implements Serializable {
          * @param openapiGeneratorIgnoreList the {@code openapiGeneratorIgnoreList} to set
          * @return a reference to this Builder
          */
-        public Builder withOpenAPIGeneratorIgnoreList(Set<String> openapiGeneratorIgnoreList) {
+        public Builder withOpenapiGeneratorIgnoreList(Set<String> openapiGeneratorIgnoreList) {
             this.openapiGeneratorIgnoreList = openapiGeneratorIgnoreList;
             return this;
         }
@@ -1214,7 +1214,7 @@ public final class GeneratorSettings implements Serializable {
          * @param value The value of entry to set
          * @return a reference to this Builder
          */
-        public Builder withOpenAPIGeneratorIgnoreList(String value) {
+        public Builder withOpenapiGeneratorIgnoreList(String value) {
             if (this.openapiGeneratorIgnoreList == null) {
                 this.openapiGeneratorIgnoreList = new HashSet<>();
             }
@@ -1390,9 +1390,9 @@ public final class GeneratorSettings implements Serializable {
                 Objects.equals(getModelNameMappings(), that.getModelNameMappings()) &&
                 Objects.equals(getEnumNameMappings(), that.getEnumNameMappings()) &&
                 Objects.equals(getOperationIdNameMappings(), that.getOperationIdNameMappings()) &&
-                Objects.equals(getOpenAPINormalizer(), that.getOpenAPINormalizer()) &&
+                Objects.equals(getOpenapiNormalizer(), that.getOpenapiNormalizer()) &&
                 Objects.equals(getLanguageSpecificPrimitives(), that.getLanguageSpecificPrimitives()) &&
-                Objects.equals(getOpenAPIGeneratorIgnoreList(), that.getOpenAPIGeneratorIgnoreList()) &&
+                Objects.equals(getOpenapiGeneratorIgnoreList(), that.getOpenapiGeneratorIgnoreList()) &&
                 Objects.equals(getReservedWordsMappings(), that.getReservedWordsMappings()) &&
                 Objects.equals(getGitHost(), that.getGitHost()) &&
                 Objects.equals(getGitUserId(), that.getGitUserId()) &&
@@ -1428,9 +1428,9 @@ public final class GeneratorSettings implements Serializable {
                 getModelNameMappings(),
                 getEnumNameMappings(),
                 getOperationIdNameMappings(),
-                getOpenAPINormalizer(),
+                getOpenapiNormalizer(),
                 getLanguageSpecificPrimitives(),
-                getOpenAPIGeneratorIgnoreList(),
+                getOpenapiGeneratorIgnoreList(),
                 getReservedWordsMappings(),
                 getGitHost(),
                 getGitUserId(),

modules/openapi-generator-gradle-plugin/README.adoc

@@ -97,7 +97,7 @@ task validateGoodSpec(type: org.openapitools.generator.gradle.plugin.tasks.Valid
 [source,group]
 ----
 plugins {
-  id "org.openapi.generator" version "7.2.0"
+  id "org.openapi.generator" version "7.5.0"
 }
 ----
 

modules/openapi-generator-gradle-plugin/gradle.properties

@@ -1,5 +1,5 @@
 # RELEASE_VERSION
-openApiGeneratorVersion=7.5.0-SNAPSHOT
+openApiGeneratorVersion=7.6.0-SNAPSHOT
 # /RELEASE_VERSION
 
 # BEGIN placeholders

modules/openapi-generator-gradle-plugin/pom.xml

@@ -4,7 +4,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.5.0-SNAPSHOT</version>
+        <version>7.6.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../..</relativePath>
     </parent>

modules/openapi-generator-gradle-plugin/samples/local-spec/gradle.properties

@@ -1,3 +1,3 @@
 # RELEASE_VERSION
-openApiGeneratorVersion=7.5.0-SNAPSHOT
+openApiGeneratorVersion=7.6.0-SNAPSHOT
 # /RELEASE_VERSION

modules/openapi-generator-gradle-plugin/src/main/kotlin/org/openapitools/generator/gradle/plugin/tasks/GenerateTask.kt

@@ -887,7 +887,7 @@ open class GenerateTask @Inject constructor(private val objectFactory: ObjectFac
 
             if (openapiNormalizer.isPresent) {
                 openapiNormalizer.get().forEach { entry ->
-                    configurator.addOpenAPINormalizer(entry.key, entry.value)
+                    configurator.addOpenapiNormalizer(entry.key, entry.value)
                 }
             }
 
@@ -917,7 +917,7 @@ open class GenerateTask @Inject constructor(private val objectFactory: ObjectFac
 
             if (openapiGeneratorIgnoreList.isPresent) {
                 openapiGeneratorIgnoreList.get().forEach {
-                    configurator.addOpenAPIGeneratorIgnoreList(it)
+                    configurator.addOpenapiGeneratorIgnoreList(it)
                 }
             }
 

modules/openapi-generator-gradle-plugin/src/test/kotlin/GenerateTaskDslTest.kt

@@ -401,7 +401,7 @@ class GenerateTaskDslTest : TestBase() {
     fun `openApiValidate should fail on invalid spec`() {
         // Arrange
         val projectFiles = mapOf(
-                "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid.yaml")
+                "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid-due-to-missing-info-attribute.yaml")
         )
 
         withProject(defaultBuildGradle, projectFiles)
@@ -423,7 +423,7 @@ class GenerateTaskDslTest : TestBase() {
     fun `openApiValidate should ok skip spec validation`() {
         // Arrange
         val projectFiles = mapOf(
-                "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid.yaml")
+                "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid-due-to-missing-info-attribute.yaml")
         )
 
         withProject("""

modules/openapi-generator-gradle-plugin/src/test/kotlin/ValidateTaskDslTest.kt

@@ -113,7 +113,7 @@ class ValidateTaskDslTest : TestBase() {
     fun `openApiValidate should fail on invalid spec`(gradleVersion: String?) {
         // Arrange
         val projectFiles = mapOf(
-            "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid.yaml")
+            "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid-due-to-missing-info-attribute.yaml")
         )
         withProject(
             """
@@ -139,6 +139,50 @@ class ValidateTaskDslTest : TestBase() {
             result.output.contains("Spec is invalid."),
             "Unexpected/no message presented to the user for an invalid spec."
         )
+        assertTrue(
+            result.output.contains("attribute info is missing"),
+            "Spec validation detail"
+        )
+        assertEquals(
+            FAILED, result.task(":openApiValidate")?.outcome,
+            "Expected a failed run, but found ${result.task(":openApiValidate")?.outcome}"
+        )
+    }
+
+    @Test(dataProvider = "gradle_version_provider")
+    fun `openApiValidate should fail on invalid spec with duplicate 200 status code`(gradleVersion: String?) {
+        // Arrange
+        val projectFiles = mapOf(
+            "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid-due-to-duplicate-200-status-code.yaml")
+        )
+        withProject(
+            """
+            | plugins {
+            |   id 'org.openapi.generator'
+            | }
+            |
+            | openApiValidate {
+            |   inputSpec = file('spec.yaml').absolutePath
+            | }
+        """.trimMargin(), projectFiles
+        )
+
+        // Act
+        val result = getGradleRunner(gradleVersion)
+            .withProjectDir(temp)
+            .withArguments("openApiValidate")
+            .withPluginClasspath()
+            .buildAndFail()
+
+        // Assert
+        assertTrue(
+            result.output.contains("Spec is invalid."),
+            "Unexpected/no message presented to the user for an invalid spec."
+        )
+        assertTrue(
+            result.output.contains("Duplicate field 200"),
+            "Spec validation detail"
+        )
         assertEquals(
             FAILED, result.task(":openApiValidate")?.outcome,
             "Expected a failed run, but found ${result.task(":openApiValidate")?.outcome}"
@@ -186,7 +230,7 @@ class ValidateTaskDslTest : TestBase() {
     fun `validateBadSpec as defined task should fail on invalid spec`(gradleVersion: String?) {
         // Arrange
         val projectFiles = mapOf(
-            "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid.yaml")
+            "spec.yaml" to javaClass.classLoader.getResourceAsStream("specs/petstore-v3.0-invalid-due-to-missing-info-attribute.yaml")
         )
         withProject(
             """
@@ -212,6 +256,10 @@ class ValidateTaskDslTest : TestBase() {
             result.output.contains("Spec is invalid."),
             "Unexpected/no message presented to the user for an invalid spec."
         )
+        assertTrue(
+            result.output.contains("attribute info is missing"),
+            "Unexpected/no message presented to the user for an invalid spec."
+        )
         assertEquals(
             FAILED, result.task(":validateBadSpec")?.outcome,
             "Expected a failed run, but found ${result.task(":validateBadSpec")?.outcome}"

modules/openapi-generator-gradle-plugin/src/test/resources/specs/petstore-v3.0-invalid-due-to-duplicate-200-status-code.yaml

@@ -0,0 +1,111 @@
+openapi: "3.0.0"
+info:
+  version: 1.0.0
+  title: Swagger Petstore
+  license:
+    name: MIT
+servers:
+  - url: http://petstore.swagger.io/v1
+paths:
+  /pets:
+    get:
+      summary: List all pets
+      operationId: listPets
+      tags:
+        - pets
+      parameters:
+        - name: limit
+          in: query
+          description: How many items to return at one time (max 100)
+          required: false
+          schema:
+            type: integer
+            format: int32
+      responses:
+        '200':
+          description: A paged array of pets
+          headers:
+            x-next:
+              description: A link to the next page of responses
+              schema:
+                type: string
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Pets"
+        '200':
+          description: duplicate 200
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Error"
+    post:
+      summary: Create a pet
+      operationId: createPets
+      tags:
+        - pets
+      responses:
+        '201':
+          description: Null response
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Error"
+  /pets/{petId}:
+    get:
+      summary: Info for a specific pet
+      operationId: showPetById
+      tags:
+        - pets
+      parameters:
+        - name: petId
+          in: path
+          required: true
+          description: The id of the pet to retrieve
+          schema:
+            type: string
+      responses:
+        '200':
+          description: Expected response to a valid request
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Pets"
+        default:
+          description: unexpected error
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Error"
+components:
+  schemas:
+    Pet:
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          format: int64
+        name:
+          type: string
+        tag:
+          type: string
+    Pets:
+      type: array
+      items:
+        $ref: "#/components/schemas/Pet"
+    Error:
+      required:
+        - code
+        - message
+      properties:
+        code:
+          type: integer
+          format: int32
+        message:
+          type: string

modules/openapi-generator-maven-plugin/README.md

@@ -12,7 +12,7 @@ Add to your `build->plugins` section (default phase is `generate-sources` phase)
     <groupId>org.openapitools</groupId>
     <artifactId>openapi-generator-maven-plugin</artifactId>
     <!-- RELEASE_VERSION -->
-    <version>7.2.0</version>
+    <version>7.5.0</version>
     <!-- /RELEASE_VERSION -->
     <executions>
         <execution>

modules/openapi-generator-maven-plugin/examples/java-client.xml

@@ -13,7 +13,7 @@
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
                 <!-- RELEASE_VERSION -->
-                <version>7.5.0-SNAPSHOT</version>
+                <version>7.6.0-SNAPSHOT</version>
                 <!-- /RELEASE_VERSION -->
                 <executions>
                     <execution>

modules/openapi-generator-maven-plugin/examples/kotlin.xml

@@ -15,7 +15,7 @@
 				<groupId>org.openapitools</groupId>
 				<artifactId>openapi-generator-maven-plugin</artifactId>
 				<!-- RELEASE_VERSION -->
-				<version>7.5.0-SNAPSHOT</version>
+				<version>7.6.0-SNAPSHOT</version>
 				<!-- /RELEASE_VERSION -->
 				<executions>
 					<execution>

modules/openapi-generator-maven-plugin/examples/multi-module/java-client/pom.xml

@@ -19,7 +19,7 @@
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
                 <!-- RELEASE_VERSION -->
-                <version>7.5.0-SNAPSHOT</version>
+                <version>7.6.0-SNAPSHOT</version>
                 <!-- /RELEASE_VERSION -->
                 <dependencies>
                     <dependency>

modules/openapi-generator-maven-plugin/examples/non-java-invalid-spec.xml

@@ -13,7 +13,7 @@
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
                 <!-- RELEASE_VERSION -->
-                <version>7.5.0-SNAPSHOT</version>
+                <version>7.6.0-SNAPSHOT</version>
                 <!-- /RELEASE_VERSION -->
                 <executions>
                     <execution>

modules/openapi-generator-maven-plugin/examples/non-java.xml

@@ -13,7 +13,7 @@
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
                 <!-- RELEASE_VERSION -->
-                <version>7.5.0-SNAPSHOT</version>
+                <version>7.6.0-SNAPSHOT</version>
                 <!-- /RELEASE_VERSION -->
                 <executions>
                     <execution>

modules/openapi-generator-maven-plugin/examples/spring.xml

@@ -20,7 +20,7 @@
                 <groupId>org.openapitools</groupId>
                 <artifactId>openapi-generator-maven-plugin</artifactId>
                 <!-- RELEASE_VERSION -->
-                <version>7.5.0-SNAPSHOT</version>
+                <version>7.6.0-SNAPSHOT</version>
                 <!-- /RELEASE_VERSION -->
                 <executions>
                     <execution>

modules/openapi-generator-maven-plugin/pom.xml

@@ -5,7 +5,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.5.0-SNAPSHOT</version>
+        <version>7.6.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../..</relativePath>
     </parent>

modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java

@@ -829,7 +829,7 @@ public class CodeGenMojo extends AbstractMojo {
 
                 // Retained for backwards-compatibility with configOptions -> openapi-normalizer
                 if (openapiNormalizer == null && configOptions.containsKey("openapi-normalizer")) {
-                    applyOpenAPINormalizerKvp(configOptions.get("openapi-normalizer").toString(),
+                    applyOpenapiNormalizerKvp(configOptions.get("openapi-normalizer").toString(),
                             configurator);
                 }
 
@@ -846,7 +846,7 @@ public class CodeGenMojo extends AbstractMojo {
 
                 // Retained for backwards-compatibility with configOptions -> openapi-generator-ignore-list
                 if (openapiGeneratorIgnoreList == null && configOptions.containsKey("openapi-generator-ignore-list")) {
-                    applyOpenAPIGeneratorIgnoreListCsv(configOptions
+                    applyOpenapiGeneratorIgnoreListCsv(configOptions
                             .get("openapi-generator-ignore-list").toString(), configurator);
                 }
 
@@ -919,7 +919,7 @@ public class CodeGenMojo extends AbstractMojo {
 
             // Apply OpenAPI normalizer rules
             if (openapiNormalizer != null && (configOptions == null || !configOptions.containsKey("openapi-normalizer"))) {
-                applyOpenAPINormalizerKvpList(openapiNormalizer, configurator);
+                applyOpenapiNormalizerKvpList(openapiNormalizer, configurator);
             }
 
             // Apply Type Mappings
@@ -936,7 +936,7 @@ public class CodeGenMojo extends AbstractMojo {
             // Apply Language Specific Primitives
             if (openapiGeneratorIgnoreList != null
                     && (configOptions == null || !configOptions.containsKey("openapi-generator-ignore-list"))) {
-                applyOpenAPIGeneratorIgnoreListCsvList(openapiGeneratorIgnoreList, configurator);
+                applyOpenapiGeneratorIgnoreListCsvList(openapiGeneratorIgnoreList, configurator);
             }
 
             // Apply Additional Properties

modules/openapi-generator-online/README.md

@@ -54,4 +54,4 @@ The `GENERATOR_HOST` variable is used here to ensure download links generated by
 ## Environment
 
 `GENERATOR_HOST` can be set to force the scheme/host/port used for download link generation. In most cases, this environment variable is not
-necessary to be set and the download link will be generated to match the originating request. The variable is provided simply as a fallback.
+necessary to be set and the download link will be generated to match the originating request. The variable is provided simply as a fallback.

modules/openapi-generator-online/pom.xml

@@ -4,7 +4,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.5.0-SNAPSHOT</version>
+        <version>7.6.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../..</relativePath>
     </parent>

modules/openapi-generator/pom.xml

@@ -4,7 +4,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.5.0-SNAPSHOT</version>
+        <version>7.6.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../..</relativePath>
     </parent>

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

@@ -358,8 +358,8 @@ public interface CodegenConfig {
 
     boolean getAddSuffixToDuplicateOperationNicknames();
 
-    boolean getUseOpenAPINormalizer();
+    boolean getUseOpenapiNormalizer();
 
-    Set<String> getOpenAPIGeneratorIgnoreList();
+    Set<String> getOpenapiGeneratorIgnoreList();
 
 }

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

@@ -442,6 +442,8 @@ public class CodegenConstants {
     public static final String GENERATE_MARSHAL_JSON = "generateMarshalJSON";
     public static final String GENERATE_MARSHAL_JSON_DESC = "Generate MarshalJSON method";
 
+    public static final String GENERATE_UNMARSHAL_JSON = "generateUnmarshalJSON";
+    public static final String GENERATE_UNMARSHAL_JSON_DESC = "Generate UnmarshalJSON method";
     public static final String MAX_ATTEMPTS_FOR_RETRY = "maxAttemptsForRetry";
 
     public static final String WAIT_TIME_OF_THREAD = "waitTimeMillis";

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

@@ -707,7 +707,7 @@ public class DefaultCodegen implements CodegenConfig {
      * Removes importToRemove from the imports of objs, if present.
      * This is useful to remove imports that are already present in operations-related template files, to avoid importing the same thing twice.
      *
-     * @param objs imports will be removed from this objs' imports collection
+     * @param objs           imports will be removed from this objs' imports collection
      * @param importToRemove the import statement to be removed
      */
     protected void removeImport(OperationsMap objs, String importToRemove) {
@@ -1092,7 +1092,7 @@ public class DefaultCodegen implements CodegenConfig {
                         addOneOfNameExtension(s, n);
                     }
                 } else if (ModelUtils.isArraySchema(s)) {
-                    Schema items = ((ArraySchema) s).getItems();
+                    Schema items = ModelUtils.getSchemaItems(s);
                     if (ModelUtils.isComposedSchema(items)) {
                         addOneOfNameExtension(items, nOneOf);
                         addOneOfInterfaceModel(items, nOneOf);
@@ -2065,8 +2065,7 @@ public class DefaultCodegen implements CodegenConfig {
             }
             return inner;
         } else if (ModelUtils.isArraySchema(schema)) {
-            ArraySchema arraySchema = (ArraySchema) schema;
-            String inner = getSchemaType(getSchemaItems(arraySchema));
+            String inner = getSchemaType(ModelUtils.getSchemaItems(schema));
             String parentType;
             if (ModelUtils.isSet(schema)) {
                 parentType = "set";
@@ -2303,7 +2302,7 @@ public class DefaultCodegen implements CodegenConfig {
      * Any non-null value will cause {{#defaultValue} check to pass.
      *
      * @param codegenProperty Codegen Property
-     * @param schema Parameter schema
+     * @param schema          Parameter schema
      * @return string presentation of the default value of the parameter
      */
     public String toDefaultParameterValue(CodegenProperty codegenProperty, Schema<?> schema) {
@@ -2330,7 +2329,7 @@ public class DefaultCodegen implements CodegenConfig {
      * Return null if you do NOT want a default value.
      * Any non-null value will cause {{#defaultValue} check to pass.
      *
-     * @param schema Property schema
+     * @param schema          Property schema
      * @param codegenProperty Codegen property
      * @return string presentation of the default value of the property
      */
@@ -2372,15 +2371,6 @@ public class DefaultCodegen implements CodegenConfig {
 
     }
 
-    protected Schema<?> getSchemaItems(ArraySchema schema) {
-        Schema<?> items = schema.getItems();
-        if (items == null) {
-            LOGGER.error("Undefined array inner type for `{}`. Default to String.", schema.getName());
-            items = new StringSchema().description("TODO default missing array inner type to string");
-            schema.setItems(items);
-        }
-        return items;
-    }
 
     protected Schema<?> getSchemaAdditionalProperties(Schema schema) {
         Schema<?> inner = ModelUtils.getAdditionalProperties(schema);
@@ -3018,6 +3008,7 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * A method that allows generators to pre-process test example payloads
      * This can be useful if one needs to change how values like null in string are represented
+     *
      * @param data the test data payload
      * @return the updated test data payload
      */
@@ -3028,6 +3019,7 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * Processes any test cases if they exist in the components.x-test-examples vendor extensions
      * If they exist then cast them to java class instances and return them back in a map
+     *
      * @param refToTestCases the component schema name that the test cases are for
      */
     private HashMap<String, SchemaTestCase> extractSchemaTestCases(String refToTestCases) {
@@ -3064,7 +3056,7 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * Sets the booleans that define the model's type
      *
-     * @param model the model to update
+     * @param model  the model to update
      * @param schema the model's schema
      */
     protected void updateModelForString(CodegenModel model, Schema schema) {
@@ -3322,7 +3314,6 @@ public class DefaultCodegen implements CodegenConfig {
      * @param sc                 The Schema that may contain the discriminator
      * @param discPropName       The String that is the discriminator propertyName in the schema
      * @param visitedSchemas     A set of visited schema names
-     *
      */
     private CodegenProperty discriminatorFound(String composedSchemaName, Schema sc, String discPropName, Set<String> visitedSchemas) {
         if (visitedSchemas.contains(composedSchemaName)) { // recursive schema definition found
@@ -3409,7 +3400,7 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * Recursively look in Schema sc for the discriminator and return it
      *
-     * @param sc The Schema that may contain the discriminator
+     * @param sc             The Schema that may contain the discriminator
      * @param visitedSchemas An array list of visited schemas
      */
     private Discriminator recursiveGetDiscriminator(Schema sc, ArrayList<Schema> visitedSchemas) {
@@ -3629,9 +3620,9 @@ public class DefaultCodegen implements CodegenConfig {
             Map<String, Object> vendorExtensions = cs.getExtensions();
             String mappingName =
                     Optional.ofNullable(vendorExtensions)
-                        .map(ve -> ve.get("x-discriminator-value"))
-                        .map(discriminatorValue -> (String) discriminatorValue)
-                        .orElse(currentSchemaName);
+                            .map(ve -> ve.get("x-discriminator-value"))
+                            .map(discriminatorValue -> (String) discriminatorValue)
+                            .orElse(currentSchemaName);
             MappedModel mm = new MappedModel(mappingName, toModelName(currentSchemaName), !mappingName.equals(currentSchemaName));
             descendentSchemas.add(mm);
         }
@@ -3658,11 +3649,11 @@ public class DefaultCodegen implements CodegenConfig {
         //  the future..
         String propertyType =
                 Optional.ofNullable(schema.getProperties())
-                    .map(p -> (Schema<?>) p.get(discriminatorPropertyName))
-                    .map(Schema::get$ref)
-                    .map(ModelUtils::getSimpleRef)
-                    .map(this::toModelName)
-                    .orElseGet(() -> typeMapping.get("string"));
+                        .map(p -> (Schema<?>) p.get(discriminatorPropertyName))
+                        .map(Schema::get$ref)
+                        .map(ModelUtils::getSimpleRef)
+                        .map(this::toModelName)
+                        .orElseGet(() -> typeMapping.get("string"));
         discriminator.setPropertyType(propertyType);
 
         // check to see if the discriminator property is an enum string
@@ -3953,8 +3944,8 @@ public class DefaultCodegen implements CodegenConfig {
      * This method was kept when required was added to the fromProperty signature
      * to ensure that the change was non-breaking
      *
-     * @param name     name of the property
-     * @param p        OAS property schema
+     * @param name name of the property
+     * @param p    OAS property schema
      * @return Codegen Property object
      */
     public CodegenProperty fromProperty(String name, Schema p) {
@@ -3970,9 +3961,9 @@ public class DefaultCodegen implements CodegenConfig {
      * Any subsequent processing of the CodegenModel return value must be idempotent
      * for a given (String name, Schema schema).
      *
-     * @param name     name of the property
-     * @param p        OAS property schema
-     * @param required true if the property is required in the next higher object schema, false otherwise
+     * @param name                             name of the property
+     * @param p                                OAS property schema
+     * @param required                         true if the property is required in the next higher object schema, false otherwise
      * @param schemaIsFromAdditionalProperties true if the property is a required property defined by additional properties schema
      *                                         If this is the actual additionalProperties schema not defining a required property, then
      *                                         the value should be false
@@ -3983,7 +3974,7 @@ public class DefaultCodegen implements CodegenConfig {
             LOGGER.error("Undefined property/schema for `{}`. Default to type:string.", name);
             return null;
         }
-        LOGGER.debug("debugging fromProperty for {} : {}", name, p);
+        LOGGER.debug("debugging fromProperty for {}: {}", name, p);
         NamedSchema ns = new NamedSchema(name, p, required, schemaIsFromAdditionalProperties);
         CodegenProperty cpc = schemaCodegenPropertyCache.get(ns);
         if (cpc != null) {
@@ -4190,8 +4181,7 @@ public class DefaultCodegen implements CodegenConfig {
 
             // handle inner property
             String itemName = getItemsName(p, name);
-            ArraySchema arraySchema = (ArraySchema) p;
-            Schema innerSchema = unaliasSchema(getSchemaItems(arraySchema));
+            Schema innerSchema = unaliasSchema(ModelUtils.getSchemaItems(p));
             CodegenProperty cp = fromProperty(itemName, innerSchema, false);
             updatePropertyForArray(property, cp);
         } else if (ModelUtils.isTypeObjectSchema(p)) {
@@ -4501,8 +4491,7 @@ public class DefaultCodegen implements CodegenConfig {
             CodegenProperty cm = fromProperty("response", responseSchema, false);
 
             if (ModelUtils.isArraySchema(responseSchema)) {
-                ArraySchema as = (ArraySchema) responseSchema;
-                CodegenProperty innerProperty = fromProperty("response", getSchemaItems(as), false);
+                CodegenProperty innerProperty = fromProperty("response", ModelUtils.getSchemaItems(responseSchema), false);
                 op.returnBaseType = innerProperty.baseType;
             } else if (ModelUtils.isMapSchema(responseSchema)) {
                 CodegenProperty innerProperty = fromProperty("response", ModelUtils.getAdditionalProperties(responseSchema), false);
@@ -4753,8 +4742,8 @@ public class DefaultCodegen implements CodegenConfig {
             if (contentType != null) {
                 contentType = contentType.toLowerCase(Locale.ROOT);
             }
-            if (!(this instanceof RustAxumServerCodegen) && contentType != null &&
-                    (contentType.startsWith("application/x-www-form-urlencoded") ||
+            if (contentType != null &&
+                    ((!(this instanceof RustAxumServerCodegen) && contentType.startsWith("application/x-www-form-urlencoded")) ||
                             contentType.startsWith("multipart"))) {
                 // process form parameters
                 formParams = fromRequestBodyToFormParameters(requestBody, imports);
@@ -5027,8 +5016,7 @@ public class DefaultCodegen implements CodegenConfig {
             r.isArray = true;
             r.containerType = cp.containerType;
             r.containerTypeMapped = typeMapping.get(cp.containerType);
-            ArraySchema as = (ArraySchema) responseSchema;
-            CodegenProperty items = fromProperty("response", getSchemaItems(as), false);
+            CodegenProperty items = fromProperty("response", ModelUtils.getSchemaItems(responseSchema), false);
             r.setItems(items);
             CodegenProperty innerCp = items;
 
@@ -5404,8 +5392,7 @@ public class DefaultCodegen implements CodegenConfig {
             }
             addVarsRequiredVarsAdditionalProps(parameterSchema, codegenParameter);
         } else if (ModelUtils.isArraySchema(parameterSchema)) {
-            final ArraySchema arraySchema = (ArraySchema) parameterSchema;
-            Schema inner = getSchemaItems(arraySchema);
+            Schema inner = ModelUtils.getSchemaItems(parameterSchema);
 
             collectionFormat = getCollectionFormat(parameter);
             // default to csv:
@@ -5922,10 +5909,10 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * Add the model name of the child schema in a composed schema to the set of imports
      *
-     * @param composed composed schema
+     * @param composed    composed schema
      * @param childSchema composed schema
-     * @param model codegen model
-     * @param modelName model name
+     * @param model       codegen model
+     * @param modelName   model name
      */
     protected void addImport(Schema composed, Schema childSchema, CodegenModel model, String modelName) {
         if (composed == null || childSchema == null) {
@@ -6808,12 +6795,12 @@ public class DefaultCodegen implements CodegenConfig {
             String enumValue = isDataTypeString(dataType)
                     ? enumUnknownDefaultCaseName
                     : // This is a dummy value that attempts to avoid collisions with previously specified cases.
-                      // Int.max / 192
-                      // The number 192 that is used to calculate this random value, is the Swift Evolution proposal for frozen/non-frozen enums.
-                      // [SE-0192](https://github.com/apple/swift-evolution/blob/master/proposals/0192-non-exhaustive-enums.md)
-                      // Since this functionality was born in the Swift 5 generator and latter on broth to all generators
-                      // https://github.com/OpenAPITools/openapi-generator/pull/11013
-                      String.valueOf(11184809);
+                    // Int.max / 192
+                    // The number 192 that is used to calculate this random value, is the Swift Evolution proposal for frozen/non-frozen enums.
+                    // [SE-0192](https://github.com/apple/swift-evolution/blob/master/proposals/0192-non-exhaustive-enums.md)
+                    // Since this functionality was born in the Swift 5 generator and latter on broth to all generators
+                    // https://github.com/OpenAPITools/openapi-generator/pull/11013
+                    String.valueOf(11184809);
 
             enumVar.put("name", toEnumVarName(enumName, dataType));
             enumVar.put("value", toEnumValue(enumValue, dataType));
@@ -7217,7 +7204,9 @@ public class DefaultCodegen implements CodegenConfig {
         codegenParameter.nameInPascalCase = camelize(codegenParameter.paramName);
         codegenParameter.nameInSnakeCase = CaseFormat.UPPER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, codegenParameter.nameInPascalCase);
         codegenParameter.nameInLowerCase = codegenParameter.paramName.toLowerCase(Locale.ROOT);
-
+        codegenParameter.isContainer = codegenProperty.isContainer;
+        codegenParameter.containerType = codegenProperty.containerType;
+        codegenParameter.containerTypeMapped = codegenProperty.containerTypeMapped;
         codegenParameter.dataFormat = codegenProperty.dataFormat;
         // non-array/map
         updateCodegenPropertyEnum(codegenProperty);
@@ -7284,19 +7273,27 @@ public class DefaultCodegen implements CodegenConfig {
                 }
             }
         } else if (ModelUtils.isTypeObjectSchema(ps)) {
-            if (ModelUtils.isFreeFormObject(ps)) {
+            if (ModelUtils.isMapSchema(ps)) {
+                codegenParameter.isMap = true;
+                codegenParameter.additionalProperties = codegenProperty.additionalProperties;
+                codegenParameter.setAdditionalPropertiesIsAnyType(codegenProperty.getAdditionalPropertiesIsAnyType());
+                codegenParameter.items = codegenProperty.items;
+                codegenParameter.isPrimitiveType = false;
+                codegenParameter.items = codegenProperty.items;
+                codegenParameter.mostInnerItems = codegenProperty.mostInnerItems;
+            } else if (ModelUtils.isFreeFormObject(ps)) {
                 codegenParameter.isFreeFormObject = true;
             }
         } else if (ModelUtils.isNullType(ps)) {
         } else if (ModelUtils.isAnyType(ps)) {
             // any schema with no type set, composed schemas often do this
         } else if (ModelUtils.isArraySchema(ps)) {
-            Schema inner = getSchemaItems((ArraySchema) ps);
+            Schema inner = ModelUtils.getSchemaItems(ps);
             CodegenProperty arrayInnerProperty = fromProperty("inner", inner, false);
+            codegenParameter.isArray = true;
             codegenParameter.items = arrayInnerProperty;
             codegenParameter.mostInnerItems = arrayInnerProperty.mostInnerItems;
             codegenParameter.isPrimitiveType = false;
-            codegenParameter.isContainer = true;
             // hoist items data into the array property
             // TODO this hoisting code is generator specific and should be isolated into updateFormPropertyForArray
             codegenParameter.baseType = arrayInnerProperty.dataType;
@@ -7572,11 +7569,10 @@ public class DefaultCodegen implements CodegenConfig {
         if (ModelUtils.isGenerateAliasAsModel(schema) && StringUtils.isNotBlank(name)) {
             this.addBodyModelSchema(codegenParameter, name, schema, imports, bodyParameterName, true);
         } else {
-            final ArraySchema arraySchema = (ArraySchema) schema;
-            Schema inner = getSchemaItems(arraySchema);
-            CodegenProperty codegenProperty = fromProperty("property", arraySchema, false);
+            Schema inner = ModelUtils.getSchemaItems(schema);
+            CodegenProperty codegenProperty = fromProperty("property", schema, false);
             if (codegenProperty == null) {
-                throw new RuntimeException("CodegenProperty cannot be null. arraySchema for debugging: " + arraySchema);
+                throw new RuntimeException("CodegenProperty cannot be null. arraySchema for debugging: " + schema);
             }
 
             imports.add(codegenProperty.baseType);
@@ -7609,7 +7605,7 @@ public class DefaultCodegen implements CodegenConfig {
 
             codegenParameter.items = codegenProperty.items;
             codegenParameter.mostInnerItems = codegenProperty.mostInnerItems;
-            codegenParameter.dataType = getTypeDeclaration(arraySchema);
+            codegenParameter.dataType = getTypeDeclaration(schema);
             codegenParameter.baseType = getSchemaType(inner);
             codegenParameter.isContainer = Boolean.TRUE;
             codegenParameter.isNullable = codegenProperty.isNullable;
@@ -7988,6 +7984,7 @@ public class DefaultCodegen implements CodegenConfig {
     protected String getAdditionalPropertiesName() {
         return "additional_properties";
     }
+
     private void addJsonSchemaForBodyRequestInCaseItsNotPresent(CodegenParameter codegenParameter, RequestBody body) {
         if (codegenParameter.jsonSchema == null)
             codegenParameter.jsonSchema = Json.pretty(body);
@@ -8254,8 +8251,8 @@ public class DefaultCodegen implements CodegenConfig {
     /**
      * Add a given ComposedSchema as an interface model to be generated, assuming it has `oneOf` defined
      *
-     * @param cs      ComposedSchema object to create as interface model
-     * @param type    name to use for the generated interface model
+     * @param cs   ComposedSchema object to create as interface model
+     * @param type name to use for the generated interface model
      */
     public void addOneOfInterfaceModel(Schema cs, String type) {
         if (cs.getOneOf() == null) {
@@ -8445,7 +8442,7 @@ public class DefaultCodegen implements CodegenConfig {
                 // in other sub-schemas of allOf/anyOf/oneOf
                 cp.vendorExtensions.putIfAbsent("x-duplicated-data-type", true);
             } else {
-                if(isTypeErasedGenerics()) {
+                if (isTypeErasedGenerics()) {
                     dataTypeSet.add(cp.baseType);
                 } else {
                     dataTypeSet.add(cp.dataType);
@@ -8476,13 +8473,17 @@ public class DefaultCodegen implements CodegenConfig {
     }
 
     @Override
-    public boolean getUseInlineModelResolver() { return true; }
+    public boolean getUseInlineModelResolver() {
+        return true;
+    }
 
     @Override
-    public boolean getUseOpenAPINormalizer() { return true; }
+    public boolean getUseOpenapiNormalizer() {
+        return true;
+    }
 
     @Override
-    public Set<String> getOpenAPIGeneratorIgnoreList() {
+    public Set<String> getOpenapiGeneratorIgnoreList() {
         return openapiGeneratorIgnoreList;
     }
 
@@ -8496,7 +8497,9 @@ public class DefaultCodegen implements CodegenConfig {
         And convert special characters like newline, tab, carriage return
         Into strings that can be rendered in the language that the generator will output to
         */
-    protected String handleSpecialCharacters(String name) { return name; }
+    protected String handleSpecialCharacters(String name) {
+        return name;
+    }
 
     /**
      * Used to ensure that null or Schema is returned given an input Boolean/Schema/null

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

@@ -265,7 +265,7 @@ public class DefaultGenerator implements Generator {
 
         // normalize the spec
         try {
-            if (config.getUseOpenAPINormalizer()) {
+            if (config.getUseOpenapiNormalizer()) {
                 SemVer version = new SemVer(openAPI.getOpenapi());
                 if (version.atLeast("3.1.0")) {
                     config.openapiNormalizer().put("NORMALIZE_31SPEC", "true");
@@ -292,13 +292,11 @@ public class DefaultGenerator implements Generator {
         // set OpenAPI to make these available to all methods
         config.setOpenAPI(openAPI);
 
-        if (!config.additionalProperties().containsKey("generatorVersion")) {
-            config.additionalProperties().put("generatorVersion", ImplementationVersion.read());
-        }
-        config.additionalProperties().put("generatedDate", ZonedDateTime.now().toString());
-        config.additionalProperties().put("generatedYear", String.valueOf(ZonedDateTime.now().getYear()));
-        config.additionalProperties().put("generatorClass", config.getClass().getName());
-        config.additionalProperties().put("inputSpec", config.getInputSpec());
+        config.additionalProperties().putIfAbsent("generatorVersion", ImplementationVersion.read());
+        config.additionalProperties().putIfAbsent("generatedDate", ZonedDateTime.now().toString());
+        config.additionalProperties().putIfAbsent("generatedYear", String.valueOf(ZonedDateTime.now().getYear()));
+        config.additionalProperties().putIfAbsent("generatorClass", config.getClass().getName());
+        config.additionalProperties().putIfAbsent("inputSpec", config.getInputSpec());
 
         if (openAPI.getExtensions() != null) {
             config.vendorExtensions().putAll(openAPI.getExtensions());
@@ -322,59 +320,59 @@ public class DefaultGenerator implements Generator {
             return;
         }
         if (info.getTitle() != null) {
-            config.additionalProperties().put("appName", config.escapeText(info.getTitle()));
+            config.additionalProperties().putIfAbsent("appName", config.escapeText(info.getTitle()));
         }
         if (info.getVersion() != null) {
-            config.additionalProperties().put("appVersion", config.escapeText(info.getVersion()));
+            config.additionalProperties().putIfAbsent("appVersion", config.escapeText(info.getVersion()));
         } else {
             LOGGER.error("Missing required field info version. Default appVersion set to 1.0.0");
-            config.additionalProperties().put("appVersion", "1.0.0");
+            config.additionalProperties().putIfAbsent("appVersion", "1.0.0");
         }
 
         if (StringUtils.isEmpty(info.getDescription())) {
             // set a default description if none if provided
-            config.additionalProperties().put("appDescription",
+            config.additionalProperties().putIfAbsent("appDescription",
                     "No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)");
-            config.additionalProperties().put("appDescriptionWithNewLines", config.additionalProperties().get("appDescription"));
-            config.additionalProperties().put("unescapedAppDescription", "No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)");
+            config.additionalProperties().putIfAbsent("appDescriptionWithNewLines", config.additionalProperties().get("appDescription"));
+            config.additionalProperties().putIfAbsent("unescapedAppDescription", "No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)");
         } else {
-            config.additionalProperties().put("appDescription", config.escapeText(info.getDescription()));
-            config.additionalProperties().put("appDescriptionWithNewLines", config.escapeTextWhileAllowingNewLines(info.getDescription()));
-            config.additionalProperties().put("unescapedAppDescription", info.getDescription());
+            config.additionalProperties().putIfAbsent("appDescription", config.escapeText(info.getDescription()));
+            config.additionalProperties().putIfAbsent("appDescriptionWithNewLines", config.escapeTextWhileAllowingNewLines(info.getDescription()));
+            config.additionalProperties().putIfAbsent("unescapedAppDescription", info.getDescription());
         }
 
         if (info.getContact() != null) {
             Contact contact = info.getContact();
             if (contact.getEmail() != null) {
-                config.additionalProperties().put("infoEmail", config.escapeText(contact.getEmail()));
+                config.additionalProperties().putIfAbsent("infoEmail", config.escapeText(contact.getEmail()));
             }
             if (contact.getName() != null) {
-                config.additionalProperties().put("infoName", config.escapeText(contact.getName()));
+                config.additionalProperties().putIfAbsent("infoName", config.escapeText(contact.getName()));
             }
             if (contact.getUrl() != null) {
-                config.additionalProperties().put("infoUrl", config.escapeText(contact.getUrl()));
+                config.additionalProperties().putIfAbsent("infoUrl", config.escapeText(contact.getUrl()));
             }
         }
 
         if (info.getLicense() != null) {
             License license = info.getLicense();
             if (license.getName() != null) {
-                config.additionalProperties().put("licenseInfo", config.escapeText(license.getName()));
+                config.additionalProperties().putIfAbsent("licenseInfo", config.escapeText(license.getName()));
             }
             if (license.getUrl() != null) {
-                config.additionalProperties().put("licenseUrl", config.escapeText(license.getUrl()));
+                config.additionalProperties().putIfAbsent("licenseUrl", config.escapeText(license.getUrl()));
             }
         }
 
         if (info.getVersion() != null) {
-            config.additionalProperties().put("version", config.escapeText(info.getVersion()));
+            config.additionalProperties().putIfAbsent("version", config.escapeText(info.getVersion()));
         } else {
             LOGGER.error("Missing required field info version. Default version set to 1.0.0");
-            config.additionalProperties().put("version", "1.0.0");
+            config.additionalProperties().putIfAbsent("version", "1.0.0");
         }
 
         if (info.getTermsOfService() != null) {
-            config.additionalProperties().put("termsOfService", config.escapeText(info.getTermsOfService()));
+            config.additionalProperties().putIfAbsent("termsOfService", config.escapeText(info.getTermsOfService()));
         }
     }
 
@@ -929,8 +927,8 @@ public class DefaultGenerator implements Generator {
     /*
      * Generate .openapi-generator-ignore if the option openapiGeneratorIgnoreFile is enabled.
      */
-    private void generateOpenAPIGeneratorIgnoreFile() {
-        if (config.getOpenAPIGeneratorIgnoreList() == null || config.getOpenAPIGeneratorIgnoreList().isEmpty()) {
+    private void generateOpenapiGeneratorIgnoreFile() {
+        if (config.getOpenapiGeneratorIgnoreList() == null || config.getOpenapiGeneratorIgnoreList().isEmpty()) {
             return;
         }
 
@@ -982,7 +980,7 @@ public class DefaultGenerator implements Generator {
             Writer fileWriter = Files.newBufferedWriter(ignoreFile.toPath(), StandardCharsets.UTF_8);
             fileWriter.write(header);
             // add entries provided by the users
-            for (String entry : config.getOpenAPIGeneratorIgnoreList()) {
+            for (String entry : config.getOpenapiGeneratorIgnoreList()) {
                 fileWriter.write(entry);
                 fileWriter.write("\n");
             }
@@ -1219,7 +1217,7 @@ public class DefaultGenerator implements Generator {
         processUserDefinedTemplates();
 
         // generate .openapi-generator-ignore if the option openapiGeneratorIgnoreFile is enabled
-        generateOpenAPIGeneratorIgnoreFile();
+        generateOpenapiGeneratorIgnoreFile();
 
         List<File> files = new ArrayList<>();
         // models

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

@@ -338,10 +338,9 @@ public class InlineModelResolver {
             return;
         }
         // Check array items
-        if (schema instanceof ArraySchema) {
-            ArraySchema array = (ArraySchema) schema;
-            Schema items = array.getItems();
-            if (items == null && array.getPrefixItems() == null) {
+        if (ModelUtils.isArraySchema(schema)) {
+            Schema items = ModelUtils.getSchemaItems(schema);
+            if (items == null && schema.getPrefixItems() == null) {
                 LOGGER.debug("Incorrect array schema with no items, prefixItems: {}", schema.toString());
                 return;
             }
@@ -357,7 +356,7 @@ public class InlineModelResolver {
 
             if (isModelNeeded(items)) {
                 // If this schema should be split into its own model, do so
-                array.setItems(this.makeSchemaInComponents(schemaName, items));
+                schema.setItems(this.makeSchemaInComponents(schemaName, items));
             }
         }
         // Check allOf, anyOf, oneOf for inline models
@@ -771,9 +770,8 @@ public class InlineModelResolver {
         for (Map.Entry<String, Schema> propertiesEntry : properties.entrySet()) {
             String key = propertiesEntry.getKey();
             Schema property = propertiesEntry.getValue();
-            if (property instanceof ObjectSchema && ((ObjectSchema) property).getProperties() != null
-                    && ((ObjectSchema) property).getProperties().size() > 0) {
-                ObjectSchema op = (ObjectSchema) property;
+            if (ModelUtils.isObjectSchema(property)) {
+                Schema op = property;
                 String modelName = resolveModelName(op.getTitle(), path + "_" + key);
                 Schema model = modelFromProperty(openAPI, op, modelName);
                 String existing = matchGenerated(model);
@@ -788,11 +786,10 @@ public class InlineModelResolver {
                     propsToUpdate.put(key, schema);
                     modelsToAdd.put(modelName, model);
                 }
-            } else if (property instanceof ArraySchema) {
-                ArraySchema ap = (ArraySchema) property;
-                Schema inner = ap.getItems();
-                if (inner instanceof ObjectSchema) {
-                    ObjectSchema op = (ObjectSchema) inner;
+            } else if (ModelUtils.isArraySchema(property)) {
+                Schema inner = ModelUtils.getSchemaItems(property);
+                if (ModelUtils.isObjectSchema(inner)) {
+                    Schema op = inner;
                     if (op.getProperties() != null && op.getProperties().size() > 0) {
                         flattenProperties(openAPI, op.getProperties(), path);
                         String modelName = resolveModelName(op.getTitle(), path + "_" + key);
@@ -801,12 +798,12 @@ public class InlineModelResolver {
                         if (existing != null) {
                             Schema schema = new Schema().$ref(existing);
                             schema.setRequired(op.getRequired());
-                            ap.setItems(schema);
+                            property.setItems(schema);
                         } else {
                             modelName = addSchemas(modelName, innerModel);
                             Schema schema = new Schema().$ref(modelName);
                             schema.setRequired(op.getRequired());
-                            ap.setItems(schema);
+                            property.setItems(schema);
                         }
                     }
                 } else if (ModelUtils.isComposedSchema(inner)) {
@@ -815,14 +812,14 @@ public class InlineModelResolver {
                     innerModelName = addSchemas(innerModelName, inner);
                     Schema schema = new Schema().$ref(innerModelName);
                     schema.setRequired(inner.getRequired());
-                    ap.setItems(schema);
+                    property.setItems(schema);
                 } else {
                     LOGGER.debug("Schema not yet handled in model resolver: {}", inner);
                 }
             } else if (ModelUtils.isMapSchema(property)) {
                 Schema inner = ModelUtils.getAdditionalProperties(property);
-                if (inner instanceof ObjectSchema) {
-                    ObjectSchema op = (ObjectSchema) inner;
+                if (ModelUtils.isObjectSchema(inner)) {
+                    Schema op = inner;
                     if (op.getProperties() != null && op.getProperties().size() > 0) {
                         flattenProperties(openAPI, op.getProperties(), path);
                         String modelName = resolveModelName(op.getTitle(), path + "_" + key);

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

@@ -499,7 +499,7 @@ public class OpenAPINormalizer {
         }
 
         if (StringUtils.isNotEmpty(schema.get$ref())) {
-            // not need to process $ref
+            // no need to process $ref
             return schema;
         }
 
@@ -509,9 +509,10 @@ public class OpenAPINormalizer {
             visitedSchemas.add(schema);
         }
 
-        if (schema instanceof ArraySchema) { // array
-            normalizeArraySchema(schema);
-            normalizeSchema(schema.getItems(), visitedSchemas);
+        if (ModelUtils.isArraySchema(schema)) { // array
+            Schema result = normalizeArraySchema(schema);
+            normalizeSchema(result.getItems(), visitedSchemas);
+            return result;
         } else if (schema.getAdditionalProperties() instanceof Schema) { // map
             normalizeMapSchema(schema);
             normalizeSchema((Schema) schema.getAdditionalProperties(), visitedSchemas);
@@ -566,7 +567,8 @@ public class OpenAPINormalizer {
     }
 
     private Schema normalizeArraySchema(Schema schema) {
-        return processSetArraytoNullable(schema);
+        Schema result = processNormalize31Spec(schema, new HashSet<>());
+        return processSetArraytoNullable(result);
     }
 
     private Schema normalizeMapSchema(Schema schema) {
@@ -594,7 +596,7 @@ public class OpenAPINormalizer {
         }
         for (Map.Entry<String, Schema> propertiesEntry : properties.entrySet()) {
             Schema property = propertiesEntry.getValue();
-            Schema newProperty = normalizeSchema(property, visitedSchemas);
+            Schema newProperty = normalizeSchema(property, new HashSet<>());
             propertiesEntry.setValue(newProperty);
         }
     }
@@ -888,7 +890,7 @@ public class OpenAPINormalizer {
 
         if (schema.getTypes() != null && !schema.getTypes().isEmpty()) {
             // 3.1 spec
-            if (schema.getTypes().size() ==1) { // 1 type only
+            if (schema.getTypes().size() == 1) { // 1 type only
                 String type = (String) schema.getTypes().iterator().next();
                 return type == null || "null".equals(type);
             } else { // more than 1 type so must not be just null
@@ -900,6 +902,11 @@ public class OpenAPINormalizer {
             if (Boolean.TRUE.equals(schema.getNullable())) {
                 return true;
             }
+
+            // for `type: null`
+            if (schema.getTypes() == null && schema.get$ref() == null) {
+                return true;
+            }
         } else { // 3.0.x or 2.x spec
             if ((schema.getType() == null || schema.getType().equals("null")) && schema.get$ref() == null) {
                 return true;
@@ -936,7 +943,7 @@ public class OpenAPINormalizer {
             if (oneOfSchemas.size() == 6) {
                 TreeSet<String> ts = new TreeSet<>();
                 for (Schema s: oneOfSchemas) {
-                    ts.add(s.getType());
+                    ts.add(ModelUtils.getType(s));
                 }
 
                 if (ts.equals(anyTypeTreeSet)) {
@@ -1061,7 +1068,7 @@ public class OpenAPINormalizer {
             if (anyOfSchemas.size() == 6) {
                 TreeSet<String> ts = new TreeSet<>();
                 for (Schema s: anyOfSchemas) {
-                    ts.add(s.getType());
+                    ts.add(ModelUtils.getType(s));
                 }
 
                 if (ts.equals(anyTypeTreeSet)) {
@@ -1222,7 +1229,7 @@ public class OpenAPINormalizer {
         // only one item (type) left
         if (schema.getTypes().size() == 1) {
             String type = String.valueOf(schema.getTypes().iterator().next());
-            if ("array".equals(type)) {
+            if (ModelUtils.isArraySchema(schema)) {
                 ArraySchema as = new ArraySchema();
                 as.setDescription(schema.getDescription());
                 as.setDefault(schema.getDefault());

modules/openapi-generator/src/main/java/org/openapitools/codegen/config/CodegenConfigurator.java

@@ -145,14 +145,14 @@ public class CodegenConfigurator {
             if(generatorSettings.getOperationIdNameMappings() != null) {
                 configurator.operationIdNameMappings.putAll(generatorSettings.getOperationIdNameMappings());
             }
-            if(generatorSettings.getOpenAPINormalizer() != null) {
-                configurator.openapiNormalizer.putAll(generatorSettings.getOpenAPINormalizer());
+            if(generatorSettings.getOpenapiNormalizer() != null) {
+                configurator.openapiNormalizer.putAll(generatorSettings.getOpenapiNormalizer());
             }
             if(generatorSettings.getLanguageSpecificPrimitives() != null) {
                 configurator.languageSpecificPrimitives.addAll(generatorSettings.getLanguageSpecificPrimitives());
             }
-            if(generatorSettings.getOpenAPIGeneratorIgnoreList() != null) {
-                configurator.openapiGeneratorIgnoreList.addAll(generatorSettings.getOpenAPIGeneratorIgnoreList());
+            if(generatorSettings.getOpenapiGeneratorIgnoreList() != null) {
+                configurator.openapiGeneratorIgnoreList.addAll(generatorSettings.getOpenapiGeneratorIgnoreList());
             }
             if(generatorSettings.getReservedWordsMappings() != null) {
                 configurator.reservedWordsMappings.putAll(generatorSettings.getReservedWordsMappings());
@@ -268,9 +268,9 @@ public class CodegenConfigurator {
         return this;
     }
 
-    public CodegenConfigurator addOpenAPINormalizer(String key, String value) {
+    public CodegenConfigurator addOpenapiNormalizer(String key, String value) {
         this.openapiNormalizer.put(key, value);
-        generatorSettingsBuilder.withOpenAPINormalizer(key, value);
+        generatorSettingsBuilder.withOpenapiNormalizer(key, value);
         return this;
     }
 
@@ -286,9 +286,9 @@ public class CodegenConfigurator {
         return this;
     }
 
-    public CodegenConfigurator addOpenAPIGeneratorIgnoreList(String value) {
+    public CodegenConfigurator addOpenapiGeneratorIgnoreList(String value) {
         this.openapiGeneratorIgnoreList.add(value);
-        generatorSettingsBuilder.withOpenAPIGeneratorIgnoreList(value);
+        generatorSettingsBuilder.withOpenapiGeneratorIgnoreList(value);
         return this;
     }
 
@@ -482,9 +482,9 @@ public class CodegenConfigurator {
         return this;
     }
 
-    public CodegenConfigurator setOpenAPINormalizer(Map<String, String> openapiNormalizer) {
+    public CodegenConfigurator setOpenapiNormalizer(Map<String, String> openapiNormalizer) {
         this.openapiNormalizer = openapiNormalizer;
-        generatorSettingsBuilder.withOpenAPINormalizer(openapiNormalizer);
+        generatorSettingsBuilder.withOpenapiNormalizer(openapiNormalizer);
         return this;
     }
 
@@ -515,10 +515,10 @@ public class CodegenConfigurator {
         return this;
     }
 
-    public CodegenConfigurator setOpenAPIGeneratorIgnoreList(
+    public CodegenConfigurator setOpenapiGeneratorIgnoreList(
             Set<String> openapiGeneratorIgnoreList) {
         this.openapiGeneratorIgnoreList = openapiGeneratorIgnoreList;
-        generatorSettingsBuilder.withOpenAPIGeneratorIgnoreList(openapiGeneratorIgnoreList);
+        generatorSettingsBuilder.withOpenapiGeneratorIgnoreList(openapiGeneratorIgnoreList);
         return this;
     }
 
@@ -779,9 +779,9 @@ public class CodegenConfigurator {
         config.modelNameMapping().putAll(generatorSettings.getModelNameMappings());
         config.enumNameMapping().putAll(generatorSettings.getEnumNameMappings());
         config.operationIdNameMapping().putAll(generatorSettings.getOperationIdNameMappings());
-        config.openapiNormalizer().putAll(generatorSettings.getOpenAPINormalizer());
+        config.openapiNormalizer().putAll(generatorSettings.getOpenapiNormalizer());
         config.languageSpecificPrimitives().addAll(generatorSettings.getLanguageSpecificPrimitives());
-        config.openapiGeneratorIgnoreList().addAll(generatorSettings.getOpenAPIGeneratorIgnoreList());
+        config.openapiGeneratorIgnoreList().addAll(generatorSettings.getOpenapiGeneratorIgnoreList());
         config.reservedWordsMappings().putAll(generatorSettings.getReservedWordsMappings());
         config.additionalProperties().putAll(generatorSettings.getAdditionalProperties());
 

modules/openapi-generator/src/main/java/org/openapitools/codegen/config/CodegenConfiguratorUtils.java

@@ -185,16 +185,16 @@ public final class CodegenConfiguratorUtils {
         }
     }
 
-    public static void applyOpenAPINormalizerKvpList(List<String> openapiNormalizer, CodegenConfigurator configurator) {
+    public static void applyOpenapiNormalizerKvpList(List<String> openapiNormalizer, CodegenConfigurator configurator) {
         for (String propString : openapiNormalizer) {
-            applyOpenAPINormalizerKvp(propString, configurator);
+            applyOpenapiNormalizerKvp(propString, configurator);
         }
     }
 
-    public static void applyOpenAPINormalizerKvp(String openapiNormalizer, CodegenConfigurator configurator) {
+    public static void applyOpenapiNormalizerKvp(String openapiNormalizer, CodegenConfigurator configurator) {
         final Map<String, String> map = createMapFromKeyValuePairs(openapiNormalizer);
         for (Map.Entry<String, String> entry : map.entrySet()) {
-            configurator.addOpenAPINormalizer(entry.getKey().trim(), entry.getValue().trim());
+            configurator.addOpenapiNormalizer(entry.getKey().trim(), entry.getValue().trim());
         }
     }
 
@@ -250,16 +250,16 @@ public final class CodegenConfiguratorUtils {
         }
     }
 
-    public static void applyOpenAPIGeneratorIgnoreListCsvList(List<String> openapiGeneratorIgnoreList, CodegenConfigurator configurator) {
+    public static void applyOpenapiGeneratorIgnoreListCsvList(List<String> openapiGeneratorIgnoreList, CodegenConfigurator configurator) {
         for (String propString : openapiGeneratorIgnoreList) {
-            applyOpenAPIGeneratorIgnoreListCsv(propString, configurator);
+            applyOpenapiGeneratorIgnoreListCsv(propString, configurator);
         }
     }
 
-    public static void applyOpenAPIGeneratorIgnoreListCsv(String openapiGeneratorIgnoreList, CodegenConfigurator configurator) {
+    public static void applyOpenapiGeneratorIgnoreListCsv(String openapiGeneratorIgnoreList, CodegenConfigurator configurator) {
         final Set<String> set = createSetFromCsvList(openapiGeneratorIgnoreList);
         for (String item : set) {
-            configurator.addOpenAPIGeneratorIgnoreList(item);
+            configurator.addOpenapiGeneratorIgnoreList(item);
         }
     }
 

modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/ExampleGenerator.java

@@ -84,10 +84,9 @@ public class ExampleGenerator {
         }
 
         if (ModelUtils.isArraySchema(responseSchema)) { // array of schema
-            ArraySchema as = (ArraySchema) responseSchema;
-            if (as.getItems() != null) { // array of primitive types
+            if (ModelUtils.getSchemaItems(responseSchema) != null) { // array of primitive types
                 return generate((Map<String, Object>) responseSchema.getExample(),
-                        new ArrayList<>(producesInfo), as);
+                        new ArrayList<>(producesInfo), responseSchema);
             } else {
                 // TODO log warning message as such case is not handled at the moment
                 return null;
@@ -248,9 +247,9 @@ public class ExampleGenerator {
             }
             return Boolean.TRUE;
         } else if (ModelUtils.isArraySchema(property)) {
-            Schema innerType = ((ArraySchema) property).getItems();
+            Schema innerType = ModelUtils.getSchemaItems(property);
             if (innerType != null) {
-                int arrayLength = null == ((ArraySchema) property).getMaxItems() ? 2 : ((ArraySchema) property).getMaxItems();
+                int arrayLength = null == property.getMaxItems() ? 2 :  property.getMaxItems();
                 // avoid memory issues by limiting to max. 5 items
                 arrayLength = Math.min(arrayLength, 5);
                 Object[] objectProperties = new Object[arrayLength];

modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/XmlExampleGenerator.java

@@ -128,8 +128,7 @@ public class XmlExampleGenerator {
         StringBuilder sb = new StringBuilder();
 
         if (ModelUtils.isArraySchema(schema)) {
-            ArraySchema as = (ArraySchema) schema;
-            Schema inner = as.getItems();
+            Schema inner = ModelUtils.getSchemaItems(schema);
             boolean wrapped = false;
             if (schema.getXml() != null && schema.getXml().getWrapped() != null && schema.getXml().getWrapped()) {
                 wrapped = true;

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

@@ -532,8 +532,7 @@ abstract public class AbstractAdaCodegen extends DefaultCodegen implements Codeg
         }
 
         if (ModelUtils.isArraySchema(p)) {
-            ArraySchema ap = (ArraySchema) p;
-            Schema inner = ap.getItems();
+            Schema inner = ModelUtils.getSchemaItems(p);
             String itemType = getTypeDeclaration(inner);
             if (itemType.startsWith("OpenAPI.")) {
                 return itemType + "_Vector";

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

@@ -188,10 +188,9 @@ public abstract class AbstractApexCodegen extends DefaultCodegen implements Code
     @Override
     public String getTypeDeclaration(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            ArraySchema ap = (ArraySchema) p;
-            Schema inner = ap.getItems();
+            Schema inner = ModelUtils.getSchemaItems(p);
             if (inner == null) {
-                LOGGER.warn("{}(array property) does not have a proper inner type defined", ap.getName());
+                LOGGER.warn("{}(array property) does not have a proper inner type defined", p.getName());
                 // TODO maybe better defaulting to StringProperty than returning null
                 return null;
             }
@@ -220,13 +219,12 @@ public abstract class AbstractApexCodegen extends DefaultCodegen implements Code
     @Override
     public String toDefaultValue(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            final ArraySchema ap = (ArraySchema) p;
             final String pattern = "new ArrayList<%s>()";
-            if (ap.getItems() == null) {
+            if (ModelUtils.getSchemaItems(p) == null) {
                 return null;
             }
 
-            return String.format(Locale.ROOT, pattern, getTypeDeclaration(ap.getItems()));
+            return String.format(Locale.ROOT, pattern, getTypeDeclaration(ModelUtils.getSchemaItems(p)));
         } else if (ModelUtils.isMapSchema(p)) {
             final MapSchema ap = (MapSchema) p;
             final String pattern = "new HashMap<%s>()";
@@ -318,7 +316,7 @@ public abstract class AbstractApexCodegen extends DefaultCodegen implements Code
 
         if (ModelUtils.isArraySchema(p)) {
             example = "new " + getTypeDeclaration(p) + "{" + toExampleValue(
-                    ((ArraySchema) p).getItems()) + "}";
+                    ModelUtils.getSchemaItems(p)) + "}";
         } else if (ModelUtils.isBooleanSchema(p)) {
             example = String.valueOf(!"false".equals(example));
         } else if (ModelUtils.isByteArraySchema(p)) {

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

@@ -585,7 +585,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
                 List<CodegenProperty> allOf = composedSchemas.getAllOf();
                 if (allOf != null) {
                     for (CodegenProperty property : allOf) {
-                        property.name = patchPropertyName(model, property.baseType);
+                        property.name = patchPropertyName(model, camelize(property.baseType));
                         patchPropertyVendorExtensions(property);
                     }
                 }
@@ -594,7 +594,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
                 if (anyOf != null) {
                     removePropertiesDeclaredInComposedTypes(objs, model, anyOf);
                     for (CodegenProperty property : anyOf) {
-                        property.name = patchPropertyName(model, property.baseType);
+                        property.name = patchPropertyName(model, camelize(property.baseType));
                         property.isNullable = true;
                         patchPropertyVendorExtensions(property);
                     }
@@ -604,7 +604,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
                 if (oneOf != null) {
                     removePropertiesDeclaredInComposedTypes(objs, model, oneOf);
                     for (CodegenProperty property : oneOf) {
-                        property.name = patchPropertyName(model, property.baseType);
+                        property.name = patchPropertyName(model, camelize(property.baseType));
                         property.isNullable = true;
                         patchPropertyVendorExtensions(property);
                     }
@@ -1433,12 +1433,12 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
      * @param arr The input array property
      * @return The type declaration when the type is an array of arrays.
      */
-    private String getArrayTypeDeclaration(ArraySchema arr) {
+    private String getArrayTypeDeclaration(Schema arr) {
         // TODO: collection type here should be fully qualified namespace to avoid model conflicts
         // This supports arrays of arrays.
         String arrayType = typeMapping.get("array");
         StringBuilder instantiationType = new StringBuilder(arrayType);
-        Schema items = arr.getItems();
+        Schema items = ModelUtils.getSchemaItems(arr);
         String nestedType = getTypeDeclaration(items);
         // TODO: We may want to differentiate here between generics and primitive arrays.
         instantiationType.append("<").append(nestedType).append(">");
@@ -1448,7 +1448,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
     @Override
     public String toInstantiationType(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            return getArrayTypeDeclaration((ArraySchema) p);
+            return getArrayTypeDeclaration(p);
         }
         return super.toInstantiationType(p);
     }
@@ -1456,7 +1456,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
     @Override
     public String getTypeDeclaration(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            return getArrayTypeDeclaration((ArraySchema) p);
+            return getArrayTypeDeclaration(p);
         } else if (ModelUtils.isMapSchema(p)) {
             // Should we also support maps of maps?
             Schema inner = ModelUtils.getAdditionalProperties(p);

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

@@ -512,7 +512,7 @@ public abstract class AbstractDartCodegen extends DefaultCodegen {
         Schema<?> schema = unaliasSchema(p);
         Schema<?> target = ModelUtils.isGenerateAliasAsModel() ? p : schema;
         if (ModelUtils.isArraySchema(target)) {
-            Schema<?> items = getSchemaItems((ArraySchema) schema);
+            Schema<?> items = ModelUtils.getSchemaItems(schema);
             return getSchemaType(target) + "<" + getTypeDeclaration(items) + ">";
         }
         if (ModelUtils.isMapSchema(target)) {

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

@@ -293,8 +293,7 @@ public abstract class AbstractEiffelCodegen extends DefaultCodegen implements Co
     @Override
     public String getTypeDeclaration(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            ArraySchema ap = (ArraySchema) p;
-            Schema inner = ap.getItems();
+            Schema inner = ModelUtils.getSchemaItems(p);
             return "LIST [" + getTypeDeclaration(inner) + "]";
         } else if (ModelUtils.isMapSchema(p)) {
             Schema inner = ModelUtils.getAdditionalProperties(p);
@@ -578,8 +577,7 @@ public abstract class AbstractEiffelCodegen extends DefaultCodegen implements Co
 //            String inner = toModelName(getSchemaType(additionalProperties2));
 //            return instantiationTypes.get("map") + " [" + inner + "]";
 //        } else if (ModelUtils.isArraySchema(p)) {
-//            ArraySchema ap = (ArraySchema) p;
-//            String inner = toModelName(getSchemaType(ap.getItems()));
+//            String inner = toModelName(getSchemaType(ModelUtils.getSchemaItems(p)));
 //            return instantiationTypes.get("array") + " [" + inner + "]";
 //        } else {
 //            return null;

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

@@ -855,12 +855,12 @@ public abstract class AbstractFSharpCodegen extends DefaultCodegen implements Co
      * @param arr The input array property
      * @return The type declaration when the type is an array of arrays.
      */
-    private String getArrayTypeDeclaration(ArraySchema arr) {
+    private String getArrayTypeDeclaration(Schema arr) {
         // TODO: collection type here should be fully qualified namespace to avoid model conflicts
         // This supports arrays of arrays.
         String arrayType = typeMapping.get("array");
         StringBuilder instantiationType = new StringBuilder(arrayType);
-        Schema items = arr.getItems();
+        Schema items = ModelUtils.getSchemaItems(arr);
         String nestedType = getTypeDeclaration(items);
         // TODO: We may want to differentiate here between generics and primitive arrays.
         return nestedType + "[]";
@@ -869,7 +869,7 @@ public abstract class AbstractFSharpCodegen extends DefaultCodegen implements Co
     @Override
     public String toInstantiationType(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            return getArrayTypeDeclaration((ArraySchema) p);
+            return getArrayTypeDeclaration(p);
         }
         return super.toInstantiationType(p);
     }
@@ -877,7 +877,7 @@ public abstract class AbstractFSharpCodegen extends DefaultCodegen implements Co
     @Override
     public String getTypeDeclaration(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            return getArrayTypeDeclaration((ArraySchema) p);
+            return getArrayTypeDeclaration(p);
         } else if (ModelUtils.isMapSchema(p)) {
             // Should we also support maps of maps?
             Schema inner = ModelUtils.getAdditionalProperties(p);

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

@@ -48,6 +48,8 @@ public abstract class AbstractGoCodegen extends DefaultCodegen implements Codege
     protected boolean generateInterfaces = false;
     protected boolean withGoMod = false;
     protected boolean generateMarshalJSON = true;
+    protected boolean generateUnmarshalJSON = true;
+
 
     protected String packageName = "openapi";
     protected Set<String> numberTypes;
@@ -360,8 +362,7 @@ public abstract class AbstractGoCodegen extends DefaultCodegen implements Codege
     @Override
     public String getTypeDeclaration(Schema p) {
         if (ModelUtils.isArraySchema(p)) {
-            ArraySchema ap = (ArraySchema) p;
-            Schema inner = ap.getItems();
+            Schema inner = ModelUtils.getSchemaItems(p);
             // In OAS 3.0.x, the array "items" attribute is required.
             // In OAS >= 3.1, the array "items" attribute is optional such that the OAS
             // specification is aligned with the JSON schema specification.
@@ -776,7 +777,11 @@ public abstract class AbstractGoCodegen extends DefaultCodegen implements Codege
             }
 
             if (generateMarshalJSON) {
-                model.vendorExtensions.put("x-go-generate-marshal-json", true);
+                model.vendorExtensions.putIfAbsent("x-go-generate-marshal-json", true);
+            }
+
+            if (generateUnmarshalJSON) {
+                model.vendorExtensions.putIfAbsent("x-go-generate-unmarshal-json", true);
             }
         }
 
@@ -933,6 +938,10 @@ public abstract class AbstractGoCodegen extends DefaultCodegen implements Codege
         this.generateMarshalJSON = generateMarshalJSON;
     }
 
+    public void setGenerateUnmarshalJSON(boolean generateUnmarshalJSON) {
+        this.generateUnmarshalJSON = generateUnmarshalJSON;
+    }
+
     @Override
     public String toDefaultValue(Schema schema) {
         schema = unaliasSchema(schema);