/**
* Notification that the root window is closing. Stop listening for received and transmitted
* packets.
*
* @param evt the event that indicates that the root window is closing
*/
public void rootWindowClosing(WindowEvent evt) {
connection.removePacketListener(listener);
((ObservableReader) reader).removeReaderListener(readerListener);
((ObservableWriter) writer).removeWriterListener(writerListener);
}
