###@###.### 2001-09-25

It might be related to bug#4190719; old bug not been addressed.

J2SE Version (please include all output from java -version flag):

java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b78)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b78, mixed mode)


Does this problem occur on J2SE 1.3? Yes / No (pick one)

Yes


Operating System Configuration Information (be specific):

Windows 2000 (Korean) SP2 with IE 6.0
(Same problem can be reproduced on Solaris as well)


Hardware Configuration Information (be specific):

PIII 650MHz / RAM 256MB / ATI video card Rage 128 GL


Bug Description:

Component is hidden when removing and then readding it to the same
JTabbedPane.



Steps to Reproduce (be specific):

It's simple to reproduce. Run the code listed in the end of this report.
If you want to fix it, you should uncomment the codes surrounded by /* ... */.
This is caused by the fact that the visibility changes occurred
by adding or removing a tab are done by the LayoutManager of JTabbedPane.
Look at the BasicTabbedPaneUI class. The setVisibieComponent(..) is
the main cause of this bug.


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

public class Test {
    public static void main(String[] argv) {
        final JTabbedPane tp = new JTabbedPane();
        final JPanel p = new JPanel();
        p.add(new JLabel("Can't you see me?"));
        JFrame f = new JFrame();
        f.setBounds(100, 100, 500, 500);
        f.getContentPane().add(tp);
        tp.addTab("Original", p);
        JButton b = new JButton("Add");
        b.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tp.remove(0);
                /*
                SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                    */
                        tp.addTab("New", p);
                        /*
                    }
                });
                */
            }
        });
        f.getContentPane().add(b, BorderLayout.SOUTH);
        f.setVisible(true);
    }
}