Name: sv35042 Date: 10/18/2002


FULL PRODUCT VERSION :
java version "1.4.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_01-
b03)
Java HotSpot(TM) Client VM (build 1.4.0_01-b03, mixed mode)

FULL OPERATING SYSTEM VERSION :

Windows NT Version
4.0

ADDITIONAL OPERATING SYSTEMS :

Mandrake Linux 8.2

A DESCRIPTION OF THE PROBLEM :
Removing the currently selected JInternalFrame from a JDesktopPane
does not cause subsequent calls to getSelectedFrame() to return null as
expected if there are no other frames. The method instead returns a
reference to the previously selected frame. The documentation states
that the method will return null if no frame is selected, and with the frame
no longer in the desktop pane, it should not be selected.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run the code below.

EXPECTED VERSUS ACTUAL BEHAVIOR :
Expect the selected frame to be null after removing the last frame, but it
isn't.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.BorderLayout;
import javax.swing.*;

public class DesktopTester
extends JFrame
{
    public DesktopTester()
    {
        getContentPane().add(desktop,
BorderLayout.CENTER);
        setSize(400, 400);
        validate();
        setVisible(true);
    }

    
public void test()
    {
        try
        {
            System.out.println("Starting with no frames...");
            
System.out.println("Selected frame is " + desktop.getSelectedFrame() + '\n');
            
Thread.sleep(5000);
            System.out.println("Adding frame...");
            
desktop.add(internalFrame);
            internalFrame.setSize(100, 100);
            
internalFrame.setVisible(true);
            System.out.println("Selected frame is " +
desktop.getSelectedFrame() + '\n');
            Thread.sleep(5000);
            
System.out.println("Removing frame...");
            desktop.remove(internalFrame);
            
repaint();
            System.out.println("Selected frame is " + desktop.getSelectedFrame());
            
Thread.sleep(5000);
        }
        catch(InterruptedException ex)
        {
            ex.printStackTrace();
        
}
    }

    public static void main(String[] args)
    {
        new DesktopTester().test();
        
System.exit(0);
    }

    private final JDesktopPane desktop = new JDesktopPane();
    private
final JInternalFrame internalFrame = new JInternalFrame();
}
---------- END SOURCE ----------
(Review ID: 159804)
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