FULL PRODUCT VERSION :
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b06)
Java HotSpot(TM) Client VM (build 1.6.0_02-b06, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows XP

A DESCRIPTION OF THE PROBLEM :
There occur multiple graphic issues if you drag and drop an joptionpane, when you run an program in fullscreen mode.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
create an joptionpane in fullscreen mode

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JOptionpane should be painted properly
ACTUAL -
JOptionpane should is not painted properly when it is draged

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

@SuppressWarnings("serial")
public class TestJOptionPane extends JFrame {
public TestJOptionPane() {
GraphicsDevice device = GraphicsEnvironment
.getLocalGraphicsEnvironment().getDefaultScreenDevice();
setUndecorated(true);
device.setFullScreenWindow(this);

setVisible(true);

JOptionPane.showMessageDialog(this, "Test");

System.exit(0);
}

public static void main(String[] args) {
new TestJOptionPane();
}
}
---------- END SOURCE ----------