How to use

EventListenerProxy

in

java.util

/**
 * {@inheritDoc}
 */
@Override
public ObservableListener<String> getListener()
{
  return (ObservableListener<String>) super.getListener();
}

/**
 * {@inheritDoc}
 */
@Override
public TableCellListener getListener()
{
  return (TableCellListener) super.getListener();
}
 

public static EventListener unproxy(EventListener listener)
{
  EventListener unproxiedListener = listener;
  
  while (unproxiedListener instanceof EventListenerProxy)
  {
    unproxiedListener = ((EventListenerProxy) unproxiedListener).getListener();
  }
  
  return unproxiedListener;
}
 

  /**
   * Extracts a real listener from the proxy listener.
   * It is necessary because default proxy class is not serializable.
   *
   * @return a real listener
   */
  public final L extract(L listener) {
    while (listener instanceof EventListenerProxy) {
      EventListenerProxy<L> proxy = (EventListenerProxy<L>) listener;
      listener = proxy.getListener();
    }
    return listener;
  }
}

  /**
   * Extracts a real listener from the proxy listener.
   * It is necessary because default proxy class is not serializable.
   *
   * @return a real listener
   */
  public final L extract(L listener) {
    while (listener instanceof EventListenerProxy) {
      EventListenerProxy<L> proxy = (EventListenerProxy<L>) listener;
      listener = proxy.getListener();
    }
    return listener;
  }
}

 Toolkit.getDefaultToolkit().addAWTEventListener(this, ...);

for (AWTEventListener listener : Toolkit.getDefaultToolkit().getAWTEventListeners()) {

  java.awt.event.AWTEventListenerProxy proxy = (java.awt.event.AWTEventListenerProxy) listener;
  if (proxy.getListener().equals(this) {
    // there, we found it.
  }
}