temp-solution.gradle

// temporarily solution: place generated code into source directory
project.afterEvaluate {
    def variants
    if (project.plugins.hasPlugin("com.android.application") || project.plugins.hasPlugin("com.android.test")) {
        variants = project.android.applicationVariants
    } else if (project.plugins.hasPlugin("com.android.library")) {
        variants = project.android.libraryVariants
    } else {
        throw new Exception("The android application or library plugin must be applied to the project")
    }
    variants.all { variant ->
        File file = project.file(new File(project.buildDir, "generated/source/annotationProcessor/${variant.name}"))
        project.tasks.getByName("transformClassesWithPreJackPackagedLibrariesFor${variant.name.capitalize()}").doFirst {
            file.mkdirs()
        }
        variant.addJavaSourceFoldersToModel(file)
        variant.javaCompiler.transform.options.additionalParameters.put("jack.annotation-processor.source.output", file.absolutePath)
    }
}