Alt+mnemonic key is not working properly for Menu Items

Question

Assume there are two menus , File Menu with mnemonic Alt+F
and Save Menu with mnemonic Alt+S. File Menu contains the
menu items like PageSetup with Mnemonic S. Save menu has
the menu item Properties with Mnemonic P.
Pressing Alt+F opens the File Menu which has the menu item
PageSetup.Pressing S activates the PageSetup menu item.
Similarly Pressing Alt+S opens the Save Menu which has the
menu item Properties. Pressing P activates the Properties
menu item acion. But Pressing Alt+P also activates the
Properties menu item action(it is not the desired behaviour)
Pressing Alt+Mnemonic key has to open only the Menus.It
should not consider the menu items.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1.Press Alt+F
2.File Menu is invoked
3.Press S
4. Invokes the menu item action
5. Press Alt+S
6. Save menu is invoked
7. Press P
8. Invokes the menu item action
9. Press Alt+P
10. Invokes the menu item action
EXPECTED VERSUS ACTUAL BEHAVIOR :
Pressing of Alt+Mnemonic key invokes the menu and also menu
item actions. If the same mnemonic is present in the Menu
it is giving the priority to Menu only.Pressing of Alt key
alone does not hiding the pull down menu
Expected Result;
Pressing of Alt+Mnemonic key has to list out the pull
down menu only.It should not consider the menu items with
the same mnemonic. If Alt key alone is pressed the pull
down menu has to hide.
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JavaBug extends JFrame
public JavaBug()
// Create menu bar
JMenuBar menuBar = new JMenuBar(); // Create menu bar
setJMenuBar(menuBar); // Add menu bar to window
// Create first option on menuBar
JMenu m1 = new JMenu("File");
m1.setMnemonic('F');
JMenuItem m1o1 = new JMenuItem("PageSetup");
m1o1.setMnemonic('S');
m1o1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("File/PageSetup was selected");
m1.add(m1o1);
// Create second option on menuBar
JMenu m2 = new JMenu("Save");
m2.setMnemonic('S');
JMenuItem m2o1 = new JMenuItem("Properties");
m2o1.setMnemonic('P');
m2o1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Save/Properties was selected");
m2.add(m2o1);
menuBar.add(m1);
menuBar.add(m2);
this.setTitle("Mnemonic Bugs");
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
setSize(400,250);
show();
public static void main(String[] args)
JavaBug bug = new JavaBug();
Suggestions welcomed
punniya

Answer 1

I tried your code, but didn't get your "bug" using jdk 1.3 on windows 2000 (at my school).
Kind regards,
Levi