Annotation Processor in IntelliJ and Gradle

Question

tl;dr: I cannot configure IntelliJ to generate the java files in the same directory as gradle

I have a small project which uses the immutables annot

Answer 1

Now https://github.com/tbroyer/gradle-apt-plugin states:

The goal of this plugin was to eventually no longer be needed, being superseded by built-in features. This is becoming a reality with Gradle 5.2 and IntelliJ IDEA 2019.1.

So:

dependencies {
  compile("com.google.dagger:dagger:2.18")
  annotationProcessor("com.google.dagger:dagger-compiler:2.18")

  compileOnly("com.google.auto.factory:auto-factory:1.0-beta6")
  annotationProcessor("com.google.auto.factory:auto-factory:1.0-beta6")

  compileOnly("org.immutables:value-annotations:2.7.1")
  annotationProcessor("org.immutables:value:2.7.1")
}

compileOnly is necessary if you use annotations, compile if you use classes, annotationProcessor introduced in Gradle 4.6.

To enable processing specific compile task:

compileJava {
    options.annotationProcessorPath = configurations.annotationProcessor
}

To disable:

  compileTestJava {
      options.compilerArgs += '-proc:none'
  }