[JAVA](bugfix) indentation error for java client generator

.github/workflows/samples-java-client-jdk17.yaml

@@ -12,6 +12,7 @@ on:
       - samples/client/others/java/webclient-sealedInterface_3_1/**
       - samples/client/petstore/java/webclient-useSingleRequestParameter/**
       - samples/client/others/java/restclient-enum-in-multipart/**
+      - samples/client/others/java/restclient-sealedInterface/**
   pull_request:
     paths:
       - samples/client/petstore/java/resttemplate-jakarta/**
@@ -23,6 +24,7 @@ on:
       - samples/client/others/java/webclient-sealedInterface_3_1/**
       - samples/client/petstore/java/webclient-useSingleRequestParameter/**
       - samples/client/others/java/restclient-enum-in-multipart/**
+      - samples/client/others/java/restclient-sealedInterface/**
 jobs:
   build:
     name: Build Java Client JDK17
@@ -49,6 +51,7 @@ jobs:
           - samples/client/petstore/java/webclient-springBoot4-jackson3
           - samples/client/petstore/java/webclient-useSingleRequestParameter
           - samples/client/others/java/restclient-enum-in-multipart
+          - samples/client/others/java/restclient-sealedInterface
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-java@v5

bin/configs/java-restclient-sealedInterface.yaml

@@ -0,0 +1,11 @@
+generatorName: java
+outputDir: samples/client/others/java/restclient-sealedInterface
+library: restclient
+inputSpec: modules/openapi-generator/src/test/resources/3_1/oneof_polymorphism_and_inheritance.yaml
+templateDir: modules/openapi-generator/src/main/resources/Java
+additionalProperties:
+  artifactId: sealed-interface-restClient
+  hideGenerationTimestamp: "true"
+  useSealedOneOfInterfaces: true
+  useOneOfInterfaces: true
+  serializableModel: true

modules/openapi-generator/src/main/resources/Java/oneof_interface.mustache

@@ -2,7 +2,7 @@
 {{#vendorExtensions.x-class-extra-annotation}}
 {{{vendorExtensions.x-class-extra-annotation}}}
 {{/vendorExtensions.x-class-extra-annotation}}
-public {{>sealed}}interface {{classname}} {{#vendorExtensions.x-implements}}{{#-first}}extends {{{.}}}{{/-first}}{{^-first}}, {{{.}}}{{/-first}}{{/vendorExtensions.x-implements}}{{>permits}}{
+public {{>sealed}}interface {{classname}} {{#vendorExtensions.x-implements}}{{#-first}}extends {{{.}}}{{/-first}}{{^-first}}, {{{.}}}{{/-first}}{{#-last}} {{/-last}}{{/vendorExtensions.x-implements}}{{>permits}}{
     {{#discriminator}}
     public {{propertyType}} {{propertyGetter}}();
     {{/discriminator}}

modules/openapi-generator/src/main/resources/Java/sealed.mustache

@@ -1 +1 @@
-{{#useSealedOneOfInterfaces}}{{#vendorExtensions.x-is-one-of-interface}}{{#permits.0}}sealed {{/permits.0}}{{/vendorExtensions.x-is-one-of-interface}}{{^permits.0}}{{#vendorExtensions.x-implements}}final {{/vendorExtensions.x-implements}}{{/permits.0}}{{/useSealedOneOfInterfaces}}
+{{#useSealedOneOfInterfaces}}{{#vendorExtensions.x-is-one-of-interface}}{{#permits.0}}sealed {{/permits.0}}{{/vendorExtensions.x-is-one-of-interface}}{{^permits.0}}{{#vendorExtensions.x-implements}}{{#-first}}final {{/-first}}{{/vendorExtensions.x-implements}}{{/permits.0}}{{/useSealedOneOfInterfaces}}

samples/client/others/java/restclient-sealedInterface/.github/workflows/maven.yml

@@ -0,0 +1,30 @@
+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+#
+# This file is auto-generated by OpenAPI Generator (https://openapi-generator.tech)
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  build:
+    name: Build ByRefOrValue
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [ 17, 21 ]
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK
+      uses: actions/setup-java@v4
+      with:
+        java-version: ${{ matrix.java }}
+        distribution: 'temurin'
+        cache: maven
+    - name: Build with Maven
+      run: mvn -B package --no-transfer-progress --file pom.xml

samples/client/others/java/restclient-sealedInterface/.gitignore

@@ -0,0 +1,21 @@
+*.class
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# exclude jar for gradle wrapper
+!gradle/wrapper/*.jar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# build files
+**/target
+target
+.gradle
+build

samples/client/others/java/restclient-sealedInterface/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/client/others/java/restclient-sealedInterface/.openapi-generator/FILES

@@ -0,0 +1,74 @@
+.github/workflows/maven.yml
+.gitignore
+.travis.yml
+README.md
+api/openapi.yaml
+build.gradle
+build.sbt
+docs/Addressable.md
+docs/Animal.md
+docs/Apple.md
+docs/Banana.md
+docs/Bar.md
+docs/BarApi.md
+docs/BarCreate.md
+docs/BarRef.md
+docs/BarRefOrValue.md
+docs/Cat.md
+docs/Dog.md
+docs/Entity.md
+docs/EntityRef.md
+docs/Extensible.md
+docs/Foo.md
+docs/FooApi.md
+docs/FooRef.md
+docs/FooRefOrValue.md
+docs/Fruit.md
+docs/FruitType.md
+docs/Pasta.md
+docs/Pizza.md
+docs/PizzaSpeziale.md
+git_push.sh
+gradle.properties
+gradle/wrapper/gradle-wrapper.jar
+gradle/wrapper/gradle-wrapper.properties
+gradlew
+gradlew.bat
+pom.xml
+settings.gradle
+src/main/AndroidManifest.xml
+src/main/java/org/openapitools/client/ApiClient.java
+src/main/java/org/openapitools/client/JavaTimeFormatter.java
+src/main/java/org/openapitools/client/RFC3339DateFormat.java
+src/main/java/org/openapitools/client/RFC3339InstantDeserializer.java
+src/main/java/org/openapitools/client/RFC3339JavaTimeModule.java
+src/main/java/org/openapitools/client/ServerConfiguration.java
+src/main/java/org/openapitools/client/ServerVariable.java
+src/main/java/org/openapitools/client/StringUtil.java
+src/main/java/org/openapitools/client/api/BarApi.java
+src/main/java/org/openapitools/client/api/FooApi.java
+src/main/java/org/openapitools/client/auth/ApiKeyAuth.java
+src/main/java/org/openapitools/client/auth/Authentication.java
+src/main/java/org/openapitools/client/auth/HttpBasicAuth.java
+src/main/java/org/openapitools/client/auth/HttpBearerAuth.java
+src/main/java/org/openapitools/client/model/Addressable.java
+src/main/java/org/openapitools/client/model/Animal.java
+src/main/java/org/openapitools/client/model/Apple.java
+src/main/java/org/openapitools/client/model/Banana.java
+src/main/java/org/openapitools/client/model/Bar.java
+src/main/java/org/openapitools/client/model/BarCreate.java
+src/main/java/org/openapitools/client/model/BarRef.java
+src/main/java/org/openapitools/client/model/BarRefOrValue.java
+src/main/java/org/openapitools/client/model/Cat.java
+src/main/java/org/openapitools/client/model/Dog.java
+src/main/java/org/openapitools/client/model/Entity.java
+src/main/java/org/openapitools/client/model/EntityRef.java
+src/main/java/org/openapitools/client/model/Extensible.java
+src/main/java/org/openapitools/client/model/Foo.java
+src/main/java/org/openapitools/client/model/FooRef.java
+src/main/java/org/openapitools/client/model/FooRefOrValue.java
+src/main/java/org/openapitools/client/model/Fruit.java
+src/main/java/org/openapitools/client/model/FruitType.java
+src/main/java/org/openapitools/client/model/Pasta.java
+src/main/java/org/openapitools/client/model/Pizza.java
+src/main/java/org/openapitools/client/model/PizzaSpeziale.java

samples/client/others/java/restclient-sealedInterface/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.21.0-SNAPSHOT

samples/client/others/java/restclient-sealedInterface/.travis.yml

@@ -0,0 +1,22 @@
+#
+# Generated by OpenAPI Generator: https://openapi-generator.tech
+#
+# Ref: https://docs.travis-ci.com/user/languages/java/
+#
+language: java
+jdk:
+  - openjdk12
+  - openjdk11
+  - openjdk10
+  - openjdk9
+  - openjdk8
+before_install:
+  # ensure gradlew has proper permission
+  - chmod a+x ./gradlew
+script:
+  # test using maven
+  #- mvn test
+  # test using gradle
+  - gradle test
+  # test using sbt
+  # - sbt test

samples/client/others/java/restclient-sealedInterface/README.md

@@ -0,0 +1,162 @@
+# sealed-interface-restClient
+
+ByRefOrValue
+
+- API version: 0.0.1
+
+- Generator version: 7.21.0-SNAPSHOT
+
+This tests for a oneOf interface representation
+
+
+
+*Automatically generated by the [OpenAPI Generator](https://openapi-generator.tech)*
+
+## Requirements
+
+Building the API client library requires:
+
+1. Java 17+
+2. Maven/Gradle
+
+## Installation
+
+To install the API client library to your local Maven repository, simply execute:
+
+```shell
+mvn clean install
+```
+
+To deploy it to a remote Maven repository instead, configure the settings of the repository and execute:
+
+```shell
+mvn clean deploy
+```
+
+Refer to the [OSSRH Guide](http://central.sonatype.org/pages/ossrh-guide.html) for more information.
+
+### Maven users
+
+Add this dependency to your project's POM:
+
+```xml
+<dependency>
+  <groupId>org.openapitools</groupId>
+  <artifactId>sealed-interface-restClient</artifactId>
+  <version>0.0.1</version>
+  <scope>compile</scope>
+</dependency>
+```
+
+### Gradle users
+
+Add this dependency to your project's build file:
+
+```groovy
+  repositories {
+    mavenCentral()     // Needed if the 'sealed-interface-restClient' jar has been published to maven central.
+    mavenLocal()       // Needed if the 'sealed-interface-restClient' jar has been published to the local maven repo.
+  }
+
+  dependencies {
+     implementation "org.openapitools:sealed-interface-restClient:0.0.1"
+  }
+```
+
+### Others
+
+At first generate the JAR by executing:
+
+```shell
+mvn clean package
+```
+
+Then manually install the following JARs:
+
+- `target/sealed-interface-restClient-0.0.1.jar`
+- `target/lib/*.jar`
+
+## Getting Started
+
+Please follow the [installation](#installation) instruction and execute the following Java code:
+
+```java
+
+import org.openapitools.client.*;
+import org.openapitools.client.auth.*;
+import org.openapitools.client.model.*;
+import org.openapitools.client.api.BarApi;
+
+public class BarApiExample {
+
+    public static void main(String[] args) {
+        ApiClient defaultClient = new ApiClient();
+        defaultClient.setBasePath("http://localhost:8080");
+
+        BarApi apiInstance = new BarApi(defaultClient);
+        BarCreate barCreate = new BarCreate(); // BarCreate | 
+        try {
+            Bar result = apiInstance.createBar(barCreate);
+            System.out.println(result);
+        } catch (HttpStatusCodeException e) {
+            System.err.println("Exception when calling BarApi#createBar");
+            System.err.println("Status code: " + e.getStatusCode().value());
+            System.err.println("Reason: " + e.getResponseBodyAsString());
+            System.err.println("Response headers: " + e.getResponseHeaders());
+            e.printStackTrace();
+        }
+    }
+}
+
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://localhost:8080*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*BarApi* | [**createBar**](docs/BarApi.md#createBar) | **POST** /bar | Create a Bar
+*FooApi* | [**createFoo**](docs/FooApi.md#createFoo) | **POST** /foo | Create a Foo
+*FooApi* | [**getAllFoos**](docs/FooApi.md#getAllFoos) | **GET** /foo | GET all Foos
+
+
+## Documentation for Models
+
+ - [Addressable](docs/Addressable.md)
+ - [Animal](docs/Animal.md)
+ - [Apple](docs/Apple.md)
+ - [Banana](docs/Banana.md)
+ - [Bar](docs/Bar.md)
+ - [BarCreate](docs/BarCreate.md)
+ - [BarRef](docs/BarRef.md)
+ - [BarRefOrValue](docs/BarRefOrValue.md)
+ - [Cat](docs/Cat.md)
+ - [Dog](docs/Dog.md)
+ - [Entity](docs/Entity.md)
+ - [EntityRef](docs/EntityRef.md)
+ - [Extensible](docs/Extensible.md)
+ - [Foo](docs/Foo.md)
+ - [FooRef](docs/FooRef.md)
+ - [FooRefOrValue](docs/FooRefOrValue.md)
+ - [Fruit](docs/Fruit.md)
+ - [FruitType](docs/FruitType.md)
+ - [Pasta](docs/Pasta.md)
+ - [Pizza](docs/Pizza.md)
+ - [PizzaSpeziale](docs/PizzaSpeziale.md)
+
+
+<a id="documentation-for-authorization"></a>
+## Documentation for Authorization
+
+Endpoints do not require authorization.
+
+
+## Recommendation
+
+It's recommended to create an instance of `ApiClient` per thread in a multithreaded environment to avoid any potential issues.
+
+## Author
+
+
+