private void fireListenersAboutDeletion(int key, T value) {
    if (myListeners != null) {
      for (DeletedPairsListener<?> myListener : myListeners) {
        ((DeletedPairsListener<T>)myListener).objectRemoved(key, value);
      }
    }
  }
private void fireListenersAboutDeletion(int key, T value)