private void fireRefreshed() {
   for (RepositoryManagerListener listener : listeners) {
     listener.refreshed(this);
   }
 }
 private void fireShutDown() {
   for (RepositoryManagerListener listener : listeners) {
     listener.shutDown(this);
   }
 }
 private void fireInitialized() {
   for (RepositoryManagerListener listener : listeners) {
     listener.initialized(this);
   }
 }