// We might want to port this into a general pattern later on.
        project.getExtensions()
            .getExtraProperties()
            .set("addQaCheckDependencies", new Closure<Object>(InternalPluginBuildPlugin.this, InternalPluginBuildPlugin.this) {
                public void doCall(Object it) {
                    project.afterEvaluate(project1 -> {
                        // let check depend on check tasks of qa sub-projects

    }
    internalPlugin {
      id = 'elasticsearch.internal-es-plugin'
      implementationClass = 'org.elasticsearch.gradle.internal.InternalPluginBuildPlugin'
    }
    internalTestArtifact {
      id = 'elasticsearch.internal-test-artifact'
      implementationClass = 'org.elasticsearch.gradle.internal.InternalTestArtifactPlugin'
    }
    internalTestArtifactBase {