@Override
 public boolean isDirty() {
   return persistentSortedSet.isDirty();
 }
 @Override
 public Loader<PersistentCollection> getLoader() {
   return persistentSortedSet.getLoader();
 }
 @Override
 public void setLoader(Loader<PersistentCollection> loader) {
   persistentSortedSet.setLoader(loader);
 }
 @Override
 public void initializing() {
   persistentSortedSet.initializing();
 }
 @Override
 public PersistentCollection clone(boolean uninitialize) {
   return persistentSortedSet.clone(uninitialize);
 }
 @Override
 public boolean wasInitialized() {
   return persistentSortedSet.wasInitialized();
 }
 @Override
 public void uninitialize() {
   persistentSortedSet.uninitialize();
 }
 @Override
 public void writeExternal(ObjectOutput out) throws IOException {
   persistentSortedSet.writeExternal(out);
 }
 @Override
 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
   persistentSortedSet.readExternal(in);
 }
 @Override
 public void removeListener(InitializationListener listener) {
   persistentSortedSet.removeListener(listener);
 }
 @Override
 public void withInitialized(InitializationCallback callback) {
   persistentSortedSet.withInitialized(callback);
 }
 @Override
 public void addListener(InitializationListener listener) {
   persistentSortedSet.addListener(listener);
 }
 @Override
 public void removeListener(ChangeListener listener) {
   persistentSortedSet.removeListener(listener);
 }
 @Override
 public void addListener(ChangeListener listener) {
   persistentSortedSet.addListener(listener);
 }
 @Override
 public void clearDirty() {
   persistentSortedSet.clearDirty();
 }
 @Override
 public void dirty() {
   persistentSortedSet.dirty();
 }