Quarkus - Generate rest clients from OpenApi - openapi

Question

I'm using Quarkus with Kotlin and tried to generate Rest clients using this Quarkus extension https://github.com/quarkiverse/quarkus-openapi-generator.
I included the dependency and the mentioned plugin into the pom.xml
<dependency>
<groupId>io.quarkiverse.openapi.generator</groupId>
<artifactId>quarkus-openapi-generator</artifactId>
<version>0.9.0</version>
</dependency>
<plugin>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-maven-plugin</artifactId>
<extensions>true</extensions>
<executions>
<execution>
<goals>
<goal>build</goal>
<goal>generate-code</goal>
<goal>generate-code-tests</goal>
</goals>
</execution>
</executions>
</plugin>
When compiling everything gets generated correctly into target/openapi/quarkus/clients_json/api/DefaultApi.java
However, when trying to import the DefaultApi it throws an error that it can't find the class.
I've tried the suggestions from the following post maven can't add files in generated-sources for compilation phase and included
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${project.build.directory}/generated-sources/gen-java</source><!-- adjust folder name to your needs -->
</sources>
</configuration>
</execution>
</executions>
</plugin>
into the pom.xml as well but it didn't do anything.
Does anyone know how to change the output directory of the generated OpenApi files with Quarkus?

Answer 1

Just an FYI:
I did the following, and it worked
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.3.0</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${project.build.directory}/generated-sources/openapi</source>
<source>src/gen/java</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>