Click drag on JPopupMenu eventually generate ArrayIndexOutOfBoundsException

Name: skT88420 Date: 06/11/99


Click-drag to show the JPopupMenu and drag into the popup menu. Continue to hold down the mouse button and drag in and out of the menu. Eventually you will have the ArrayIndexOutOfBOundsException.
Exception occurred during event dispatching:

java.lang.ArrayIndexOutOfBoundsException

at javax.swing.MenuSelectionManager.processMouseEvent(MenuSelectionManager.java:237)

at javax.swing.plaf.basic.BasicPopupMenuUI$MouseGrabber.mouseDragged(BasicPopupMenuUI.java:311)

at java.awt.Component.processMouseMotionEvent(Component.java:3190)

at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:1852)

at java.awt.Component.processEvent(Component.java:2989)

at java.awt.Container.processEvent(Container.java:991)

at java.awt.Component.dispatchEventImpl(Component.java:2380)

at java.awt.Container.dispatchEventImpl(Container.java:1036)

at java.awt.Component.dispatchEvent(Component.java:2293)

at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2039)

at java.awt.LightweightDispatcher.processMouseEvent(Container.java:1805)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:1719)

at java.awt.Container.dispatchEventImpl(Container.java:1023)

at java.awt.Window.dispatchEventImpl(Window.java:749)

at java.awt.Component.dispatchEvent(Component.java:2293)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:275)

at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:96)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:87)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:78)


No exception if click-release to bring up the JPopupMenu.


import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class JPopupAOOBBug extends JFrame {

  public JPopupAOOBBug() {
    super("JPopup Drag Bug");
    
    JLabel label = new JLabel("Popup Here");
    getContentPane().add(label);
    final JPopupMenu menu = new JPopupMenu();
    menu.add("Group1");
    menu.add("Group2");
    
    label.addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent event) {
            menu.show(event.getComponent(), event.getX(), event.getY());
        }
    });


    
    setSize(300, 100);
    setVisible(true);
  }
  

  public static void main (String args[]) {
    JPopupAOOBBug frame = new JPopupAOOBBug();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
  }
  
    
  
}
(Review ID: 84265)
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