Name: jbT81659 Date: 08/08/2000

JToolTip functionality is broken under Win2000 Hebrew and Solaris7IA

To reproduce bug:
1- Compile and run the following code (jToolTip.java):
2- position the mouse on the buttons and move it over all buttons.
3- Notice that exceptions are thrown at the command prompt.

The following is a partial part of the error message I received:
--------------------------
Exception occurred during event dispatching:
java.lang.NullPointerException
        at javax.swing.plaf.metal.MetalToolTipUI.getAcceleratorString(MetalToolTipUI.java:97)
        at javax.swing.plaf.metal.MetalToolTipUI.paint(MetalToolTipUI.java:71)
        at javax.swing.plaf.ComponentUI.update(ComponentUI.java:129)
        at javax.swing.JComponent.paintComponent(JComponent.java:412)
        at javax.swing.JComponent.paint(JComponent.java:713)
        at javax.swing.JComponent.paintChildren(JComponent.java:518)
        at javax.swing.JComponent.paint(JComponent.java:722)
        at javax.swing.JComponent.paintWithBuffer(JComponent.java:4221)
        at javax.swing.JComponent._paintImmediately(JComponent.java:4164)
        at javax.swing.JComponent.paintImmediately(JComponent.java:3995)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:374)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:119)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:154)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:368)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:127)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:117)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:96)
Exception occurred during event dispatching:
java.lang.NullPointerException
        at javax.swing.plaf.metal.MetalToolTipUI.getAcceleratorString(MetalToolTipUI.java:97)
        at javax.swing.plaf.metal.MetalToolTipUI.getPreferredSize(MetalToolTipUI.java:88)
        at javax.swing.plaf.basic.BasicToolTipUI.getMinimumSize(BasicToolTipUI.java:155)
        at javax.swing.JComponent.getMinimumSize(JComponent.java:1130)
        at javax.swing.OverlayLayout.checkRequests(OverlayLayout.java:237)
        at javax.swing.OverlayLayout.layoutContainer(OverlayLayout.java:194)
        at java.awt.Container.layout(Container.java:702)
        at java.awt.Container.doLayout(Container.java:692)
--------------------------

--------------------------Code----------------------
/* Copyright (c) Sun Microsystems 1998

$Header: /home/sun/src/JDK1.2/jToolTip.java,v 1.14 2000/03/30 08:13:08 isam Exp $

*/

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

public class jToolTip extends JApplet
{
        public void init()
        {
                TooltipPanel1 tooltip = new TooltipPanel1();
                getContentPane().add(tooltip);
        }

        public static void main(String[] argv)
        {
                JFrame frame = new JFrame("\u0645\u062b\u0627\u0644");
                frame.setContentPane(new TooltipPanel1());
                frame.pack();
                frame.setVisible(true);
        frame.addWindowListener( new WindowAdapter()
        {
             public void windowClosing( WindowEvent e)
             {
                 System.exit(0);
             }
        });

        }
}
class TooltipPanel1 extends JPanel
{
        public TooltipPanel1()
        {
setLayout(new GridLayout(5,1));

JButton Button1 = new JButton();
JToolTip Button1TT = new JToolTip();

Button1TT.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button1.setToolTipText ("\u0647\u0630\u0627\u0020\u064a\u0648\u0645\u0020\u0644\u0637\u064a\u0641\u0020\u05d6\u05d4\u0020\u05d9\u05d5\u05dd\u0020\u05e0\u05e2\u05d9\u05dd" );
Button1.add(Button1TT);

Button1.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button1.setText("\u062a\u0641\u0627\u062d\u0020\u0623\u062d\u0645\u0631\u0020\u0643\u0628\u064a\u0631\u0020\u0042\u0049\u0047\u0020\u0052\u0045\u0044\u0020\u0041\u0050\u0050\u004c\u0045\u0053\u0665\u0667\u0669\u0661");

                JButton Button2 = new JButton();
                Button2.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button2.setText("\u05d6\u05d5\u0020\u05e9\u05e0\u05d4\u0020\u05d9\u05e4\u05d4\u0020\u0054\u0048\u0045\u0020\u0059\u0045\u0041\u0052\u0020\u0031\u0039\u0035\u0038");
                Button2.setToolTipText ("\u05d6\u05d5\u0020\u05e9\u05e0\u05d4\u0020\u05d9\u05e4\u05d4\u0020\u0054\u0048\u0045\u0020\u0059\u0045\u0041\u0052\u0020\u0031\u0039\u0035\u0038");

                JButton Button3 = new JButton();
                Button3.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button3.setText("\u05ea\u05e4\u05d5\u05d6\u05d9\u05dd\u0020\u05d8\u05e2\u05de\u05d9\u05dd\u0020\u006c\u0069\u006d\u0065\u0020\u0069\u0073\u0020\u0067\u0072\u0065\u0065\u006e");
                Button3.setToolTipText ("\u05ea\u05e4\u05d5\u05d6\u05d9\u05dd\u0020\u05d8\u05e2\u05de\u05d9\u05dd\u0020\u006c\u0069\u006d\u0065\u0020\u0069\u0073\u0020\u0067\u0072\u0065\u0065\u006e");

                JButton Button4 = new JButton();
                Button4.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button4.setText("\u006c\u0069\u006d\u0065\u0020\u0069\u0073\u0020\u0067\u0072\u0065\u0065\u006e\u05d7\u05d5\u05de\u05d5\u05e1\u0020\u05d9\u05e7\u05e8");
                Button4.setToolTipText ("\u006c\u0069\u006d\u0065\u0020\u05d7\u05d5\u05de\u05d5\u05e1\u0020\u05d9\u05e7\u05e8\u0069\u0073\u0020\u0067\u0072\u0065\u0065\u006e");

                JButton Button5 = new JButton();
                Button5.setFont(new Font("Lucida Sans Regular",Font.PLAIN,12));
Button5.setText("\u05d7\u05d5\u05de\u05d5\u05e1\u0020\u006c\u0069\u006d\u0065\u0020\u0069\u0073\u0020\u0067\u0072\u0065\u0065\u006e\u0020\u05d9\u05e7\u05e8");
                Button5.setToolTipText ("\u062a\u0641\u0627\u062d\u0020\u0623\u062d\u0645\u0631\u0020\u0643\u0628\u064a\u0631");
                add(Button1);
                add(Button2);
                add(Button3);
                add(Button4);
                add(Button5);
        }
}



WorkAround:
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