public File getRootDir() {
            return rootDir;
        }

    }

    private static class NotifyBeforeEvaluate implements RunnableBuildOperation {

        private final ProjectInternal project;
        private final ProjectStateInternal state;

        private NotifyBeforeEvaluate(ProjectInternal project, ProjectStateInternal state) {
            this.project = project;
            this.state = state;