val extension = this.extensions.create<ErrorProneSourceSetExtension>("errorprone", project.objects.property<Boolean>())
        // Enable it only for the main source set by default, as incremental Groovy
        // joint-compilation doesn't work with the Error Prone annotation processor
        extension.enabled.convention(this.name == "main")

        project.dependencies.addProvider(
            annotationProcessorConfigurationName,