Name: rmT116609 Date: 05/13/2004


FULL PRODUCT VERSION :
java version "1.4.2"
Java(TM) 2 Runtime Envrionment, Standard Edition (build 1.4.2-b28)
Java HotSpot (TM) Clinet VM (build 1.4.2-b28, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows XP Version 2002 SP 1

A DESCRIPTION OF THE PROBLEM :
Setting the background color on JProgressBar does not work in XP L&F in JRE 1.4.2. This used to work in 1.4.1. Even in 1.4.2, with other L&F like metal L&F, it works properly and shows the background color set on the component. With XP L&F, it always shows white background.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the test case.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The progress bar should show with red color as background. When the task proceeds, the progress is indicated by the green foreground color.
ACTUAL -
The progress bar shows up with white background color, which is then filled with green foreground color.

REPRODUCIBILITY :
This bug can be reproduced always.

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

public class ProgressBar extends JPanel {

    private JProgressBar progressBar;

    public ProgressBar() {
        super(new BorderLayout());


        progressBar = new JProgressBar(0, 20);
        progressBar.setValue(0);
        progressBar.setStringPainted(true);
        progressBar.setForeground(Color.green);
        progressBar.setBackground(Color.red);
        progressBar.setOpaque(true);


        JPanel panel = new JPanel();
        panel.add(progressBar);

        add(panel, BorderLayout.PAGE_START);
        setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));


    }

    /**
     * Create the GUI and show it. For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated(true);

        //Create and set up the window.
        JFrame frame = new JFrame("ProgressBarDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.
        JComponent newContentPane = new ProgressBar();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {

      try
        {
 
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }
        catch (Exception e)
        { }
       createAndShowGUI();
    }
}
---------- END SOURCE ----------

Release Regression From : 1.4.1
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.

(Incident Review ID: 265350)
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