The JInternalFrame fails to display the background color when
setBackground(Color) is used. The following program should
display 3 internal frames with red, green, and blue background
colors.

This program works for jdk1.2fcs release, but failed for jdk1.3
version O-E

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test extends JFrame {
    JButton b1 = new JButton("show internal message dialog");
    JButton b2 = new JButton("show external message dialog");

    public test() {
        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
        JDesktopPane desktopPane = new JDesktopPane();
        contentPane.add(BorderLayout.CENTER, desktopPane);


        JInternalFrame if1, if2, if3;
        if1 = new JInternalFrame("Frame 1");
        if2 = new JInternalFrame("Frame 2");
        if3 = new JInternalFrame("Frame 3");
        if1.setBounds(20, 20, 95, 95);
        if2.setBounds(120, 20, 95, 95);
        if3.setBounds(220, 20, 95, 95);
        if1.setBackground(Color.red);
        if2.setBackground(Color.blue);
        if3.setBackground(Color.green);
        if1.setVisible(true);
        if2.setVisible(true);
        if3.setVisible(true);

        desktopPane.add(if1, JLayeredPane.DEFAULT_LAYER);
        desktopPane.add(if2, JLayeredPane.DEFAULT_LAYER);
        desktopPane.add(if3, JLayeredPane.DEFAULT_LAYER);

        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent we) {
                System.exit(0);
            }
        });

        validate();
        setSize(400, 300);
        show();
    }
    static void main(String[] argv) {
        test t = new test();
   }
}
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Roger Pham 9/3/99