This bug occurs with JDK1.1.5J, JDK1.1.5FCS, JDK1.1.6L, JDK1.1.6M and
JDK1.1.6N.
 
From JDK1.1.5J onwardsn, appletviewer crashes when you try
to click on a menu of an inactive frame.

In JDK1.1.4J, appletviewer does not crash, but the inactive frame just
gains the focus, and the menu items aren't displayed.
 
Test Case:
 
b518877.java:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class b518877
       extends Applet
{
    private Frame _mFrame1;
    private Frame _mFrame2;
 
    public b518877()
    {
    }
 
    public void start()
    {
        _mFrame1 = new TestFrame("Frame 1");
        _mFrame2 = new TestFrame("Frame 2");
 
        _mFrame1.setBounds(100, 100, 300, 200);
        _mFrame2.setBounds(125, 125, 300, 200);
 
        _mFrame1.validate();
        _mFrame2.validate();
 
        _mFrame1.setVisible(true);
        _mFrame2.setVisible(true);
    }
 
}
 
class TestFrame extends Frame
                implements WindowListener
{
    private TextField _mField1;
    private TextField _mField2;
    private MenuBar _mMenuBar;
    private Menu _mMenu;
 
    TestFrame(String name)
    {
        super(name);
 
        _mField1 = new TextField();
        _mField2 = new TextField();
 
        add(_mField1, "East");
        add(_mField2, "West");
 
        add(new PopupMenu("dummy"));
 
        addWindowListener(this);
    }
 
    public void windowOpened(WindowEvent e)
    {
    }
 
    public void windowClosing(WindowEvent e)
    {
    }
 
    public void windowClosed(WindowEvent e)
    {
    }
 
    public void windowIconified(WindowEvent e)
    {
    }
 
    public void windowDeiconified(WindowEvent e)
    {
    }
 
    public void windowActivated(WindowEvent e)
    {
        _mMenuBar = new MenuBar();
 
        _mMenu = new Menu("Menu 01");
        _mMenu.add(new MenuItem("Item 01"));
        _mMenu.add(new MenuItem("Item 02"));
        _mMenu.add(new MenuItem("Item 03"));
        _mMenu.add(new MenuItem("Item 04"));
        _mMenu.add(new MenuItem("Item 05"));
        _mMenu.add(new MenuItem("Item 06"));
        _mMenu.add(new MenuItem("Item 07"));
        _mMenu.add(new MenuItem("Item 08"));
        _mMenu.add(new MenuItem("Item 09"));
        _mMenu.add(new MenuItem("Item 10"));
        _mMenuBar.add(_mMenu);
 
        _mMenu = new Menu("Menu 02");
        _mMenu.add(new MenuItem("Item 01"));
        _mMenu.add(new MenuItem("Item 02"));
        _mMenu.add(new MenuItem("Item 03"));
        _mMenu.add(new MenuItem("Item 04"));
        _mMenu.add(new MenuItem("Item 05"));
        _mMenu.add(new MenuItem("Item 06"));
        _mMenu.add(new MenuItem("Item 07"));
        _mMenu.add(new MenuItem("Item 08"));
        _mMenu.add(new MenuItem("Item 09"));
        _mMenu.add(new MenuItem("Item 10"));
        _mMenuBar.add(_mMenu);
 
        _mMenu = new Menu("Menu 03");
        _mMenu.add(new MenuItem("Item 01"));
        _mMenu.add(new MenuItem("Item 02"));
        _mMenu.add(new MenuItem("Item 03"));
        _mMenu.add(new MenuItem("Item 04"));
        _mMenu.add(new MenuItem("Item 05"));
        _mMenu.add(new MenuItem("Item 06"));
        _mMenu.add(new MenuItem("Item 07"));
        _mMenu.add(new MenuItem("Item 08"));
        _mMenu.add(new MenuItem("Item 09"));
        _mMenu.add(new MenuItem("Item 10"));
        _mMenuBar.add(_mMenu);
 
        _mMenu = new Menu("Menu 04");
        _mMenu.add(new MenuItem("Item 01"));
        _mMenu.add(new MenuItem("Item 02"));
        _mMenu.add(new MenuItem("Item 03"));
        _mMenu.add(new MenuItem("Item 04"));
        _mMenu.add(new MenuItem("Item 05"));
        _mMenu.add(new MenuItem("Item 06"));
        _mMenu.add(new MenuItem("Item 07"));
        _mMenu.add(new MenuItem("Item 08"));
        _mMenu.add(new MenuItem("Item 09"));
        _mMenu.add(new MenuItem("Item 10"));
        _mMenuBar.add(_mMenu);
 
        _mMenu = new Menu("Menu 05");
        _mMenu.add(new MenuItem("Item 01"));
        _mMenu.add(new MenuItem("Item 02"));
        _mMenu.add(new MenuItem("Item 03"));
        _mMenu.add(new MenuItem("Item 04"));
        _mMenu.add(new MenuItem("Item 05"));
        _mMenu.add(new MenuItem("Item 06"));
        _mMenu.add(new MenuItem("Item 07"));
        _mMenu.add(new MenuItem("Item 08"));
        _mMenu.add(new MenuItem("Item 09"));
        _mMenu.add(new MenuItem("Item 10"));
        _mMenuBar.add(_mMenu);
 
        setMenuBar(_mMenuBar);
    }
 
    public void windowDeactivated(WindowEvent e)
    {
    }
}
 
 
b518877.html:
<applet code="b518877" width=400 height=400>
</applet>
 
 
To reproduce the bug:

1. Start the appletviewer
2. Move "Frame 2" around a little bit so that you can see the menus of the
inactive frame "Frame 1"
3. Click on any menu of "Frame 1"
4. appletviewer will crash
 
A Dr. Watson for Windows NT message box will be generated:
Exception: access violation(0xc0000005), Address: 0x0000001

(The hex address for Address will vary from installation to installation)



 
ingrid.yao@Eng 1998-07-02

stack trace from Visual C++:
=============================
00120751()
AwtFrame::WmDrawItem(unsigned int 0, tagDRAWITEMSTRUCT & {...}) line 320 + 16 bytes
AwtComponent::WindowProc(unsigned int 43, unsigned int 0, long 35123872) line 675 + 22 bytes
AwtComponent::WndProc(void * 0x0008077a, unsigned int 43, unsigned int 0, long 35123872) line 161 + 23 bytes
USER32! 77e71ab7()
USER32! 77e888d8()
NTDLL! 77f7624f()
USER32! 77e7288d()
USER32! 77e72918()
AwtComponent::DefWindowProcA(unsigned int 274, unsigned int 61589, long 2491327) line 776 + 47 bytes
AwtComponent::WindowProc(unsigned int 274, unsigned int 61589, long 2491327) line 763 + 20 bytes
AwtComponent::WndProc(void * 0x0008077a, unsigned int 274, unsigned int 61589, long 2491327) line 161 + 23 bytes
USER32! 77e71ab7()
USER32! 77e71a77()
NTDLL! 77f7624f()
USER32! 77e7288d()
USER32! 77e72918()
AwtComponent::DefWindowProcA(unsigned int 161, unsigned int 5, long 2491327) line 776 + 47 bytes
AwtComponent::WindowProc(unsigned int 161, unsigned int 5, long 2491327) line 763 + 20 bytes
AwtComponent::WndProc(void * 0x0008077a, unsigned int 161, unsigned int 5, long 2491327) line 161 + 23 bytes
USER32! 77e71250()