code: private void fireOnClosed(ConnectionEvent e) {
          List<EventListener> listeners = changes.getListenerList(AMQP);
          for (EventListener listener : listeners) {
              ConnectionListener amqpListener = (ConnectionListener)listener;
              amqpListener.onConnectionClose(e);
          }
      }
docs: Occurs when the connection to the AMQP server is closed
  
  @param e