Kotlin-Kapt Annotation Processor not working with maven - maven

Question

I want to generate jpa querydsl files from kotlin entity classes.
There is a very good examples online of how to generate the dsl files using gradle https://github.com/JetBrains/kotlin-examples/blob/master/gradle/kotlin-querydsl/build.gradle.
However I have tried to implement this in maven and have had no luck.
My current pom is below. Does anybody know what the issue might be?
Thanks in advance.
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test-jpa</artifactId>
<version>2.7.0-SNAPSHOT</version>
<properties>
<kotlin.version>1.1.50</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.5.Final</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jre8</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.basedir}/src/main/java</sourceDir>
</sourceDirs>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>com.mysema.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>3.6.4</version>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</execution>
<execution>
<id>compile</id>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/java</sourceDir>
<sourceDir>${project.build.sourceDirectory}</sourceDir>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

Answer 1

The potential problem is that you missed the jpa classifier:
<annotationProcessorPath>
<groupId>com.mysema.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>3.6.3</version>
<classifier>jpa</classifier>
</annotationProcessorPath>
I added a Maven/Querydsl example to the kotlin-examples repository. Note that the example has a slightly more complicated pom as it also supports Java/Kotlin combined projects.