Name: rmT116609 Date: 02/26/2004


FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

AND

java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)

AND

java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b26)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b26, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows 2000 [Version 5.00.2195]
SunOS XXXX 5.8 Generic_108528-18 sun4u sparc SUNW,Sun-Blade-100
SunOd XXXX 5.6 Generic_105181-29 sun4u sparc SUNW,Ultra-5_10

A DESCRIPTION OF THE PROBLEM :
The sun.awt.font.ExtendedTextSourceLabel throws an ArrayIndexOutOfBounds from line 670 when the user enters certain Gurmukhi character sequences into a Swing text component.

The text component also throws an ArrayIndexOutOfBounds exception if the same sequence of character is entered as a block of text (via setText()).

So far we have found two sequences that exhibit this behavior:
Ra-Virama-Ra-Nukta (\u0a30\u0a4d\u0a30\u0a3c)
Ya-Virama-Ya-Nukta (\u0a2f\u0a4d\u0a2f\u0a3c)

We are checking with our customer to see if these are Valid sequences of characters but in either case the exception should not happen (using the no-glyph character or some other representation would be better if these are invalid sequences).


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the test case provided.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No Exception is thrown.
ACTUAL -
Exception is thrown and repeated making the application non-responsive and it impossible to add more text to the Swing text component.

ERROR MESSAGES/STACK TRACES THAT OCCUR :


Below is a Stack trace from the 1.40_04:
C:\devel\test>"C:\j2sdk1.4.0_04\bin\java.exe" -cp .. test.TestGurmukhi
minIndex = 1, maxIndex = 4, cp = 1
Exception in thread "main" minIndex = 1, maxIndex = 4, cp = 1
java.lang.ArrayIndexOutOfBoundsException
        at sun.awt.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:670)
        at sun.awt.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:413)
        at sun.awt.font.ExtendedTextSourceLabel.getLineBreakIndex(ExtendedTextSourceLabel.java:359)
        at java.awt.font.TextMeasurer.calcLineBreak(TextMeasurer.java:313)
        at java.awt.font.TextMeasurer.getLineBreakIndex(TextMeasurer.java:556)
        at java.awt.font.LineBreakMeasurer.nextOffset(LineBreakMeasurer.java:340)
        at javax.swing.text.TextLayoutStrategy.getLimitingOffset(TextLayoutStrategy.java:260)
        at javax.swing.text.TextLayoutStrategy.createView(TextLayoutStrategy.java:168)
        at javax.swing.text.FlowView$FlowStrategy.layoutRow(FlowView.java:441)
        at javax.swing.text.TextLayoutStrategy.layoutRow(TextLayoutStrategy.java:109)
        at javax.swing.text.FlowView$FlowStrategy.layout(FlowView.java:397)
        at javax.swing.text.TextLayoutStrategy.layout(TextLayoutStrategy.java:92)
        at javax.swing.text.FlowView.layout(FlowView.java:182)
        at javax.swing.text.BoxView.setSize(BoxView.java:379)
        at javax.swing.plaf.basic.BasicTextAreaUI$PlainParagraph.setSize(BasicTextAreaUI.java:203)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:348)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:330)
        at javax.swing.text.BoxView.layout(BoxView.java:682)
        at javax.swing.text.BoxView.setSize(BoxView.java:379)
        at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:1528)
        at javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1247)
        at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:565)
        at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:699)
        at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:678)
        at javax.swing.JComponent.paintComponent(JComponent.java:537)
        at javax.swing.JComponent.paint(JComponent.java:804)
        at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4735)
        at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4688)
        at javax.swing.JComponent._paintImmediately(JComponent.java:4632)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4464)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:117)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:443)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
java.lang.ArrayIndexOutOfBoundsException
        at sun.awt.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:670)
        at sun.awt.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:413)
        at sun.awt.font.ExtendedTextSourceLabel.getLineBreakIndex(ExtendedTextSourceLabel.java:359)
        at java.awt.font.TextMeasurer.calcLineBreak(TextMeasurer.java:313)
        at java.awt.font.TextMeasurer.getLineBreakIndex(TextMeasurer.java:556)
        at java.awt.font.LineBreakMeasurer.nextOffset(LineBreakMeasurer.java:340)
        at java.awt.font.LineBreakMeasurer.nextLayout(LineBreakMeasurer.java:422)
        at javax.swing.text.TextLayoutStrategy.sync(TextLayoutStrategy.java:321)
        at javax.swing.text.TextLayoutStrategy.insertUpdate(TextLayoutStrategy.java:52)
        at javax.swing.text.FlowView.insertUpdate(FlowView.java:236)
        at javax.swing.text.View.forwardUpdateToView(View.java:1208)
        at javax.swing.text.View.forwardUpdate(View.java:1183)
        at javax.swing.text.BoxView.forwardUpdate(BoxView.java:222)
        at javax.swing.text.View.insertUpdate(View.java:707)
        at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(BasicTextUI.java:1416)
        at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(BasicTextUI.java:1650)
        at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:184)
        at javax.swing.text.AbstractDocument.handleInsertString(AbstractDocument.java:748)
        at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:705)
        at javax.swing.text.PlainDocument.insertString(PlainDocument.java:114)
        at javax.swing.JTextArea.insert(JTextArea.java:442)
        at test.TestGurmukhi.main(TestGurmukhi.java:35)

C:\devel\test>"C:\j2sdk1.4.0_04\bin\java.exe" -version
java version "1.4.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_04-b04)
Java HotSpot(TM) Client VM (build 1.4.0_04-b04, mixed mode)



And for 1.5.0 beta:
C:\devel\test>"C:\Program Files\Java\j2re1.5.0\bin\java.exe" -cp .. test.TestGurmukhi
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 32
        at sun.font.ExtendedTextSourceLabel.createCharinfo(Unknown Source)
        at sun.font.ExtendedTextSourceLabel.getCharinfo(Unknown Source)
        at sun.font.ExtendedTextSourceLabel.getLineBreakIndex(Unknown Source)
        at java.awt.font.TextMeasurer.calcLineBreak(Unknown Source)
        at java.awt.font.TextMeasurer.getLineBreakIndex(Unknown Source)
        at java.awt.font.LineBreakMeasurer.nextOffset(Unknown Source)
        at java.awt.font.LineBreakMeasurer.nextLayout(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.sync(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.insertUpdate(Unknown Source)
        at javax.swing.text.FlowView.insertUpdate(Unknown Source)
        at javax.swing.text.View.forwardUpdateToView(Unknown Source)
        at javax.swing.text.View.forwardUpdate(Unknown Source)
        at javax.swing.text.BoxView.forwardUpdate(Unknown Source)
        at javax.swing.text.View.insertUpdate(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(Unknown Source)
        at javax.swing.text.AbstractDocument.fireInsertUpdate(Unknown Source)
        at javax.swing.text.AbstractDocument.handleInsertString(Unknown Source)
        at javax.swing.text.AbstractDocument.insertString(Unknown Source)
        at javax.swing.text.PlainDocument.insertString(Unknown Source)
        at javax.swing.JTextArea.insert(Unknown Source)
        at test.TestGurmukhi.main(TestGurmukhi.java:35)
java.lang.ArrayIndexOutOfBoundsException: 32
        at sun.font.ExtendedTextSourceLabel.createCharinfo(Unknown Source)
        at sun.font.ExtendedTextSourceLabel.getCharinfo(Unknown Source)
        at sun.font.ExtendedTextSourceLabel.getLineBreakIndex(Unknown Source)
        at java.awt.font.TextMeasurer.calcLineBreak(Unknown Source)
        at java.awt.font.TextMeasurer.getLineBreakIndex(Unknown Source)
        at java.awt.font.LineBreakMeasurer.nextOffset(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.getLimitingOffset(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.createView(Unknown Source)
        at javax.swing.text.FlowView$FlowStrategy.layoutRow(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.layoutRow(Unknown Source)
        at javax.swing.text.FlowView$FlowStrategy.layout(Unknown Source)
        at javax.swing.text.TextLayoutStrategy.layout(Unknown Source)
        at javax.swing.text.FlowView.layout(Unknown Source)
        at javax.swing.text.BoxView.setSize(Unknown Source)
        at javax.swing.plaf.basic.BasicTextAreaUI$PlainParagraph.setSize(Unknown Source)
        at javax.swing.text.BoxView.updateChildSizes(Unknown Source)
        at javax.swing.text.BoxView.setSpanOnAxis(Unknown Source)
        at javax.swing.text.BoxView.layout(Unknown Source)
        at javax.swing.text.BoxView.setSize(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI$RootView.paint(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI.paintSafely(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI.paint(Unknown Source)
        at javax.swing.plaf.basic.BasicTextUI.update(Unknown Source)
        at javax.swing.JComponent.paintComponent(Unknown Source)
        at javax.swing.JComponent.paint(Unknown Source)
        at javax.swing.JComponent.paintWithOffscreenBuffer(Unknown Source)
        at javax.swing.JComponent.paintDoubleBuffered(Unknown Source)
        at javax.swing.JComponent._paintImmediately(Unknown Source)
        at javax.swing.JComponent.paintImmediately(Unknown Source)
        at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

C:\devel\test>"C:\Program Files\Java\j2re1.5.0\bin\java.exe" -version
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b26)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b26, mixed mode)

C:\devel\test>



REPRODUCIBILITY :
This bug can be reproduced always.

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

package test;

import java.awt.*;

import javax.swing.*;


public class TestGurmukhi
{
    public static void main(String[] args) throws Exception
    {
        JTextArea textArea = new JTextArea();
        JFrame frame = new JFrame();

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Uncomment to see the setText() exception.
        //textArea.setText(
        // "Ra Virama Ra Nukta \n" +
        // "\u0a30\u0a4d\u0a30\u0a3c \n");

        frame.getContentPane().setLayout(new BorderLayout());
        frame.getContentPane().add(textArea, BorderLayout.CENTER);

        frame.pack();
        frame.setVisible(true);


        Thread.sleep(5000);
        
        String keys = null;
        keys = "\u0a30\u0a4d\u0a30\u0a3c";
        keys = "\u0a2f\u0a4d\u0a2f\u0a3c";
        for(int i = 0; i < keys.length(); ++i)
        {
            textArea.insert(
                String.valueOf(keys.charAt(i)),
                textArea.getDocument().getLength());
        }
    }
}

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


(Incident Review ID: 240176)
======================================================================