java.util.TooManyListenersException#printStackTrace ( )源码实例Demo

protected void installDragSupport() {
    tabPane.setTransferHandler(TRANSFER_HANDLER);
    try {
        DropTarget target = tabPane.getDropTarget();
        if (target != null) {
            target.addDropTargetListener(TRANSFER_HANDLER);
            target.setActive(dndEnabled);
        }
    } catch (TooManyListenersException e) {
        e.printStackTrace();
    }
}
 

protected void installDnD() {
    tabFrame.setTransferHandler(TRANSFER_HANDLER);
    try {
        DropTarget dropTarget = tabFrame.getDropTarget();
        if (dropTarget != null) {
            dropTarget.addDropTargetListener(TRANSFER_HANDLER);
            dropTarget.setActive(tabFrame.isDndEnabled());
        }
    } catch (TooManyListenersException e) {
        e.printStackTrace();
    }
}
 

/**
 * 添加监听器
 * 
 * @param port
 *            串口对象
 * @param listener
 *            串口存在有效数据监听
 */
public static void addListener(SerialPort serialPort, DataAvailableListener listener) {
	try {
		// 给串口添加监听器
		serialPort.addEventListener(new SerialPortListener(listener));
		// 设置当有数据到达时唤醒监听接收线程
		serialPort.notifyOnDataAvailable(true);
		// 设置当通信中断时唤醒中断线程
		serialPort.notifyOnBreakInterrupt(true);
	} catch (TooManyListenersException e) {
		e.printStackTrace();
	}
}
 

private void configureGlassLayer() {
    try {
        glassLayer.setDropTarget(new DropTarget());
        glassLayer.getDropTarget().addDropTargetListener(new GlassLayerDropTargetListener());
    } catch (TooManyListenersException ex) {
        ex.printStackTrace();
    }
}
 

@Override
public void exportAsDrag(JComponent comp, InputEvent e, int action) {
	int srcActions = getSourceActions(comp);

	// only mouse events supported for drag operations
	if (!(e instanceof MouseEvent)
	// only support known actions
			|| !(action == COPY || action == MOVE || action == LINK)
			// only support valid source actions
			|| (srcActions & action) == 0) {

		action = NONE;
	}

	if (action != NONE && !GraphicsEnvironment.isHeadless()) {
		if (recognizer == null) {
			recognizer = new SwingDragGestureRecognizer();

		}
		DragHandler dgl = new DragHandler();
		try {
			recognizer.addDragGestureListener(dgl);
		} catch (TooManyListenersException e1) {
			e1.printStackTrace();
		}
		recognizer.gestured(comp, (MouseEvent) e, srcActions, action);
		recognizer.removeDragGestureListener(dgl);
	} else {
		exportDone(comp, null, NONE);
	}
}