Name: jk109818 Date: 01/02/2002


FULL PRODUCT VERSION :
java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build
1.4.0-beta3-b84)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b84, mixed
mode)

FULL OPERATING SYSTEM VERSION :
Windows 2000 Version 5.00

ADDITIONAL OPERATING SYSTEMS :

Windows 98 Version 4.10

A DESCRIPTION OF THE PROBLEM :

This problem occurs on NT 2000 and Windows 98 operating
systems.
It does not occur on NT4.

After showing a popup menu, selecting an item from a drop
list belonging
to a combo box is not possible anymore.

It also occurs when showing a system menu of an internal
frame, or a
menu of a Jframe.

  To reproduce the problem with the sample below, click
anywhere on
the client area of the sample, click on the combo box'
button to get it
open, and click on one of the items. You may see that the
item is not
selected.

Note also that, if one clicks on the combo box to get it
open, and drags to
select an item, then the item will be correctly selected.

This bug causes 1.3 applications to be quite unsable with
1.4 version beta 3.
It seems that the problem has appeared from beta 3.

Best regards,
Jean-Bernard

REGRESSION. Last worked in version 1.3.1

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
  To reproduce the problem with the sample below, click
anywhere on
the client area of the sample, click on the combo box'
button to get it
open, and click on one of the items. You may see that the
item is not
selected.

Note also that, if one clicks on the combo box to get it
open, and drags to
select an item, then the item will be correctly selected.

This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/**
 * ComboBox1Merlin.java
 */
import java.lang.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

/**
 * Class: ComboBox1Merlin
 */
public class ComboBox1Merlin extends javax.swing.JFrame
   {
    JPopupMenu popupMenu;
    /**
     * Constructor: ComboBox1Merlin
     * @return instance of ComboBox1Merlin
     */
    public ComboBox1Merlin()
       {
        super();

        JMenuItem ppMenuItem = new JMenuItem();
        /* Bean Properties */
        ppMenuItem.setName("JMenuItem");
        ppMenuItem.setText("MenuItem");
        ppMenuItem.setEnabled(false);
        
        JMenu ppMenu = new JMenu();
        /* JMenuItem - Bean Properties */
        ppMenu.setName("JMenu");
        ppMenu.setText("Menu");
        /* Adds Child */
        ppMenu.add(ppMenuItem);

        /* JPopupMenu */
        popupMenu = new JPopupMenu();
        /* Adds Child */
        popupMenu.add(ppMenu);

        JLabel label = new JLabel();
        /* JLabel - Bean Properties */
        label.setName("JLabel");
        label.setText("Click here...");
        
label.setHorizontalAlignment(javax.swing.SwingConstants.CENT
ER);
        /* JComboBox - sets Bounds */
        label.setBounds(28,180,250,22);
        
        JComboBox comboBox = new JComboBox();
        /* JComboBox - Bean Properties */
        comboBox.setName("JComboBox");
        /* JComboBox - sets Bounds */
        comboBox.setBounds(35,50,100,22);
        comboBox.setPreferredSize(new
java.awt.Dimension(100,22));
        for (int i = 0; i < 10; i++)
             comboBox.addItem("" + i);
        
        final JPanel panel = new JPanel();
        panel.addMouseListener(new
java.awt.event.MouseAdapter()
          {
           public void
mousePressed(java.awt.event.MouseEvent e)
              {
               popupMenu.show(panel,e.getX(),e.getY());
              }
          });
        /* JPanel - Bean Properties */
        panel.setName("JPanel");
        /* JPanel - set Layout */
        panel.setLayout(null);
        /* JPanel - Adds Child */
        panel.add(comboBox);
        panel.add(label);
                        
        /* javax.swing.JFrame - Bean Properties */
        
setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        setName("JFrame");
        setTitle("Title");
        /* javax.swing.JFrame - sets Bounds */
        setBounds(50,100,400,400);
        /* javax.swing.JFrame - Adds Child */
        
getContentPane().add(panel,java.awt.BorderLayout.CENTER);
       } /* End of Constructor: ComboBox1Merlin */

    /**
     * Method: generalHandleException <br>
     * @param java.lang.Throwable exception
     * @return void
     */
    protected void
generalHandleException(java.lang.Throwable exc)
       {
        exc.printStackTrace(System.err);
       } /* End of Method: generalHandleException */

    /**
     * Method: main <br>
     * Note: Called only if we're an application. <br>
     * @param java.lang.String[] args the command line
arguments
     * @return void
     */
    public static void main(java.lang.String[] args)
       {
        try
           {
            /* Set native look and feel */
            
javax.swing.UIManager.setLookAndFeel(javax.swing.UIManager.g
etSystemLookAndFeelClassName());

            /* Creates new MainObject */
            ComboBox1Merlin self = new ComboBox1Merlin();
            self.show();
           } /* End try */
        catch (java.lang.Throwable exc)
           {
            exc.printStackTrace(System.err);
           } /* End catch */
       } /* End of Method: main */

   } /* End of Class: ComboBox1Merlin */


---------- END SOURCE ----------

Release Regression From : 1.3.1
The above release value was the last known release where this
bug was knwon to work. Since then there has been a regression.

(Review ID: 137665)
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