Alt+menmonic char not working when menu & menuitem have same mnemonic char.

JDK1.2.1-H build : Alt+menmonic char not working when menu & menuitem have same mnemonic char. This happens only on Windows platforms. Worked fine in JDK1.2.1-G build.

Steps to simulate the problem,
1. Run the attached program.
2. There are 2 menus, 1 - First Menu and 2 - Second Menu. First Menu has menmonics for menuitems also. Second Menu does not have mnemonics set for menuitems
3. Pressing Alt+1 does not drop down the list of menuitems.
4. Pressing Alt+2 drops down the list of menuitems.

--- Sample Code ---
import java.awt.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.border.*;

public class Bug extends JFrame {
public Bug() {
Container content = getContentPane();
content.setLayout(new BorderLayout());
content.add("North", createMenuBar("1 - First Menu", true));
content.add("South", createMenuBar("2 - Second Menu", false));
pack();
show();
}

public JMenuBar createMenuBar(String str, boolean bFlag) {
JMenuBar menubar = new JMenuBar();
JMenuItem menuitem;

JMenu menu = new JMenu(str);
menu.setMnemonic(str.charAt(0));

menubar.add(menu);
for(int i = 0; i < 10; i ++) {
menuitem = new JMenuItem("JMenuItem" + i);
if(bFlag)
menuitem.setMnemonic('0' + i);
menu.add(menuitem);
}
return menubar;
}

public static void main(String argv[]) {
new Bug();
}
}

--- Sample Code ---

Name: skT88420 Date: 06/21/99


I'm concerned that, in JDK 1.2.2RC, bug 4127078 is still not
fixed. In a previous correspondence, you informed me that this
behavior is covered under bug 4186905, which is marked fixed
in a "non-public-release."

While much of the behavior described in bug 4186905 now appears
to be working, I hope that bug 4127078 hasn't slipped through
the cracks.

Here's what you wrote me in a previous release.

"Thanks for your report. Believe me, we know this
is still a problem. The reason there may be
confusion re. the state of some bugs is that the
problem appears to be getting worked on under bug
# 4186905. It is definitely the same problem.
Sorry this still exists in the current release,
but I want to assure you that this bug has a high
priority."

If JDK 1.2.2 gets released without this fix (I hope, that doesn't
happen) please consider reopening bug 4127078.
(Review ID: 84626)
======================================================================
al.smith@eng 2000-12-18
The test name of one of the included bugs is Regression test:
javax/swing/JMenu/4213634/bug4213634.java from bug 4376660

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al.smith@eng 2001-02-02
The regression test that demonstrates this failure:
javax/swing/JMenu/4213634/bug4213634.java
Was successfully fixed with Ladybird as of b14 but still fails with Merlin b50.
I'm resetting this bug to NYI for the Merlin verification failure.