Animation gif too fast

FULL PRODUCT VERSION :
java version "1.5.0_07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)
Java HotSpot(TM) Client VM (build 1.5.0_07-b03, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
I found one animation gif animates too fast.

  http://prev.tinami.com/c/chinats2.gif

Please run the source code bellow. Same happend on JButton.

I confirmed this bug on JDK1.5.0_07 and JDK1.6beta2.


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

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

class MeApp
{
public static void main(String[] args) throws Exception
{
final URL url = new URL("http://prev.tinami.com/c/chinats2.gif");

final JFrame frame = new JFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.getContentPane().add(new JLabel(new ImageIcon(url)));

frame.pack();

frame.setVisible(true);
}
}


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