Name: ggC50526 Date: 09/24/97


Create a popup menu with some menu items.
Then on a mouse event before showing the
popup menu change the label of one of the
menu items.
This causes a crash in winawt.dll

Sample code:

import java.awt.*;
import java.awt.event.*;


class menu extends Frame
{
   MenuItem one, two, three;

   public static void main(String args[])
   {
      new menu();
   }

   PopupMenu popupMenu;

   public menu()
   {
      super("Test Frame");
      enableEvents(MouseEvent.MOUSE_EVENT_MASK |WindowEvent.WINDOW_EVENT_MASK);

      popupMenu = new PopupMenu("Popup");
      add(popupMenu);

      Menu m;
      MenuItem mi;

      one = new MenuItem("1");
      popupMenu.add(one);
      two = new MenuItem("2");
      popupMenu.add(two);
      three = new MenuItem("3");
      popupMenu.add(three);

      setLocation(200,200);
      setSize(300,300);
      show();
   }

   public void processMouseEvent(MouseEvent e)
   {
      if (e.getID() == MouseEvent.MOUSE_PRESSED) {
one.setLabel("One");
popupMenu.show(this, e.getX(), e.getY());
      }

      super.processMouseEvent(e);
   }

   protected void processWindowEvent(WindowEvent e)
   {
      if (e.getID() == WindowEvent.WINDOW_CLOSING) {
dispose();
System.exit(0);
      }

      super.processWindowEvent(e);
   }
}

End of sample code.

This bug did not occur when using jdk1.1.3.
======================================================================

I am doing some animation with about 100-300 dots
in the applet. I get this message pretty much
every time I run the program. Sometimes it runs
for a long time, and other times it is fairly
quick. Is there a fix for this?

The code is fairly lengthy, but I'd be happy to
send it if you need it. Also, a quick response
would be greately appreciated. Thanx.

APPLETVIEWER caused an invalid page fault in
module WINAWT.DLL at 0137:01f5a7fd.
Registers:
EAX=000005c2 CS=0137 EIP=01f5a7fd EFLGS=00010246
EBX=ffffffc0 SS=013f ESP=01f3fe10 EBP=00717400
ECX=c509ff10 DS=013f ESI=007afc00 FS=556f
EDX=00000005 ES=013f EDI=00000000 GS=0000
Bytes at CS:EIP:
8b 4f 0c 8d 47 0c 85 c9 7e 17 50 ff 15 20 27 f8
Stack dump:
00717430 007afc00 01f5a714 02c0c0c0 00e71b98 01f5ddc9 02c0c0c0 00717430
00717408 01f6da61 00e71b98 ffc0c0c0 02308822 1003942b 00717430 01f3fefc