Tooltip does not repaint background with correct color on disappearing.

Name: jk109818 Date: 02/13/2002


FULL PRODUCT VERSION :
java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-b24)
Java HotSpot(TM) Client VM (build 1.3.1-b24, mixed mode)
AND
java version "1.4.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-rc-b91)
Java HotSpot(TM) Client VM (build 1.4.0-rc-b91, mixed mode)

FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]

ADDITIONAL OPERATING SYSTEMS :


A DESCRIPTION OF THE PROBLEM :
When the mouse cursor is placed over one of the three
buttons on the top-right window: minimize, maximize, close
the tool tip shows up displaying what these buttons do.
When I move the cursor away causing the tool tip to
disappear, the underlying area is repainted with the frame
background color. These does not happen all the time,
but happens a lot especially if the mouse is over the
"maximize" button.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run the program.
2. Place the mouse cursor over one of the three button on
the top-right corner of the window (minimize, maximize,
close: try the middle maximize button) so that a tool tip is
displayed.
3. Move the cursor away to cause the tooltip to disappear.
The area beneath the tooltip is not repainted correctly.

EXPECTED VERSUS ACTUAL BEHAVIOR :
The area beneath the tooltip should have the background
color of the outermost component, but it has the background
color of the underlying JFrame instead.

This bug can be reproduced often.

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

public class Test extends JFrame {
private static final int WIDTH = 400;
private static final int HEIGHT = 300;

public Test() {
setSize(WIDTH, HEIGHT);
setBackground(Color.red);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
dispose();
System.exit(0);
}
});
JPanel panel = new JPanel();
panel.setBackground(Color.yellow);
getContentPane().add(panel);
}

public static void main(String args[]) {
(new Test()).setVisible(true);
}
}

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

CUSTOMER WORKAROUND :
Change the frame background to match the background of the
components near these buttons.
This is not possible if the frame needs to have a different
background color.
(Review ID: 138493)
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