public synchronized boolean hasListeners(String propertyName) {   if (propertyListeners.get(propertyName) == null) { return false; }
public synchronized boolean hasListeners(String propertyName) { if (listeners.getListenerCount() > 0)
	public synchronized boolean hasListeners(String propertyName) {		// Get Listener list		if (propertyListeners.get(propertyName) == null) {			return false;		} // if		return true;	} // hasListeners()