Make Intellij IDE run the Kotlin/Java annotation processing when changing Kotlin source files - maven

Question

Recently I have started using Kotlin v1.2 with Intellij IDEA v2017.3.
I implemented an annotation processor in Kotlin, which writes a resource file under META-INF, when a class is annotated with the supported annotation type.
I can see that the annotation processor is working with another Maven project, which is using the implementation as a dependency. If I run mvn clean compile, the file under META-INF is generated correctly in target/classes/META-INF.
My problem is that Intellij does not start the annotation processor when a source file is changed. For example, if I rename the annotated Kotlin class. The resource file is not regenerated or updated. (I haven't seen the annotation processor working yet from Intellij...)
I also enabled annotation processing and configured "obtain processors from project classpath" within the IDE like described here.
I imported the project as a Maven project here is my pom.xml - like I said: It is working when building with Maven:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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>org.example</groupId>
<artifactId>usage</artifactId>
<version>1</version>
<properties>
<kotlin.version>1.2.0</kotlin.version>
</properties>
<build>
<sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
<plugins>
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<configuration>
<jvmTarget>1.8</jvmTarget>
</configuration>
<executions>
<execution>
<id>kapt</id>
<phase>generate-sources</phase>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/kotlin</sourceDir>
</sourceDirs>
<annotationProcessors>
<annotationProcessor>org.example.MyProcessor</annotationProcessor>
</annotationProcessors>
</configuration>
</execution>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<!-- Dependency containing the annotation processor -->
<dependency>
<groupId>org.example</groupId>
<artifactId>processor</artifactId>
<version>1</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>