JPopupMenu won't die

Question

Hi,
I'm using a JPopupMenu on a JList and I'm experiencing an odd problem.
The menu never actually closes itself under a certain circumstance.
Say for instance you invoke the popup menu. If you click outside the frame, the menu closes fine. However, if you minimize the frame while the popup menu is displayed, things get weird when you restore it. The menu is still there, but in the form of a solid gray box. All lettering is gone and no highlighting occurs if I move the cursor over it. I have to invoke the popup menu again with a right click if I want the thing to actually disappear.
I have dug through the forums in an attempt to find a solution. I didn't find anything that addressed my specific problem, but found things that might apply. None have worked. I have tried the following:
popupMenu.setVisible(false);
MenuSelectionManager.defaultManager().clearSelectedPath();
remove(popupMenu);
Is this a bug, or am I doing something incorrectly?
Thanks for your help.

Answer 1

Thank you for your reply. I tried your suggestion, but got the same results. I have coded up a demo program that will reproduce the problem. In addition, those who are interested can (for now) view screen caps of this issue at http://marble.sru.edu/~kjl4608/jpopupmenu.html
Thanks for your help
Demo - test.java:import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class test extends JFrame
   private Container container;
   private JPopupMenu popupMenu;
   private DefaultListModel listModel;
   private JList list;
   public test()
      super("DEMO");
      setSize(100,210);
      container=getContentPane();
      container.setLayout(new BorderLayout());
      listModel=new DefaultListModel();
      doList();
      createPopupMenu();
   public static void main(String[] args)
      test frame=new test();
      frame.show();
   private void createPopupMenu()
      popupMenu=new JPopupMenu();
      for(int i=1;i<5;i++)
         popupMenu.add(new JMenuItem("Choice "+i));
      MouseListener popupListener=new popupListener();
      list.addMouseListener(popupListener);
   private void doList()
      for(int i=1;i<=10;i++)
         listModel.addElement("Item"+i);
      list=new JList(listModel);
      container.add(list,BorderLayout.CENTER);
   //class is nested
   private class popupListener extends MouseAdapter
      public void mousePressed(MouseEvent e)
      {  maybeShowPopup(e);  }
      public void mouseReleased(MouseEvent e)
      {  maybeShowPopup(e); }
      private void maybeShowPopup(MouseEvent e)
         if(e.isPopupTrigger())
            popupMenu.show(e.getComponent(),e.getX(),e.getY());
            int row=list.locationToIndex(e.getPoint());
         list.setSelectedIndex(row);
}