Name: jk109818 Date: 04/09/2002


FULL PRODUCT VERSION :
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 :
Redhat Linux 6.2
glibc-2.1.3.21
kernel 2.2.16-3smp


ADDITIONAL OPERATING SYSTEMS :
Redhat Linux 7.1
glibc-2.2.4-19
kernel 2.4.9-6.1smp



A DESCRIPTION OF THE PROBLEM :
Dragging JInternalFrames within a JDesktop is extremely slow
and jerky on linux (the problem does not seem to occur under
Windows). Resizing the frame seems to have a similar
problem. The larger the internal frame the less responsive
dragging and resizing becomes.

REGRESSION. Last worked in version 1.3.1

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. See included example
2.
3.

This bug can be reproduced always.

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

public class Example extends JFrame {

    public static void main(String args[]) { new Example(); }

    public Example() {
        super("eg");
        init();
        pack();
        setVisible(true);
    }

    void init() {
        // build simple interface
        JDesktopPane jdp = new JDesktopPane();
        jdp.setPreferredSize(new Dimension(600,600));
        jdp.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
        setContentPane(jdp);

        JInternalFrame jif = new JInternalFrame("boo");
        jif.setSize(400, 400);
        jif.setVisible(true);
        jif.setResizable(true);
        getContentPane().add(jif);
    }
}


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

CUSTOMER WORKAROUND :
None...and without a fix, we cannot release this software
for use on Linux.

Release Regression From : 1.3.1_03
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.

(Review ID: 139216)
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