Name: dbT83986 Date: 01/04/99


This happens irregularly, so I don't have extra information, but I thought
the trace data may be of interest to you.

JAVAW caused an invalid page fault in
module AWT.DLL at 0137:5008e682.
Registers:
EAX=00000094 CS=0137 EIP=5008e682 EFLGS=00010246
EBX=bff3215a SS=013f ESP=056eeaa8 EBP=bff798bb
ECX=c107b8f0 DS=013f ESI=0652c9a8 FS=39af
EDX=0001203e ES=013f EDI=bff34517 GS=0000
Bytes at CS:EIP:
8b 46 18 85 c0 74 12 6a 0f ff d7 8b 4e 0c 50 51
Stack dump:
00914564 00914550 017a5dd8 5009180a 00856780 0652d32c 5008e57d 0652d32c 00856780 0652d32c 500904fe 00856780 054dc264 017a5cc0 017a5dd8 017a5de0
(Review ID: 48890)
======================================================================

Name: tb29552 Date: 03/14/99


Well, one thing I know for sure. Java should in no way,
no matter what I tell it to do perform illegal operations.
It would be difficult to tell you how to reproduce the problem
since I myself don't know exactly where is the problem coming
from though I am willing to send the code that I suspect causes
the illegal operation.

  What I will do though are 2 things:
A. I will explain shortly what my program does.
B. I will include the Details displayed by windows on the
   Illegal Operation performed by Java.

A. My program is a client for a chess server. So far all I am
   doing is receiving the text from the server (in a thread)
   and displaying it char by char in an JInternalFrame, which
   is within a JFrame. After I connect to the server and work
   with it for a while, the error occurs. It does not occur at
   any particular place but each time in a different state of my
   work with the server.

B. Here is a copy of Details stated in the window that informs
   me that it will close Java because it performed an illegal
   operation:
   start
   JAVA caused an invalid page fault in
   module AWT.DLL at 0137:5008e682.
   Registers:
   EAX=00000094 CS=0137 EIP=5008e682 EFLGS=00010246
   EBX=bff2215a SS=013f ESP=05c6fb68 EBP=bff798b6
   ECX=c2be0c18 DS=013f ESI=05f34dec FS=482f
   EDX=00010000 ES=013f EDI=bff2451b GS=0000
   Bytes at CS:EIP:
   8b 46 18 85 c0 74 12 6a 0f ff d7 8b 4e 0c 50 51
   Stack dump:
   05489314 05489300 01521988 5009180a 054d8e40 05f35770 5008e57d 05f35770 054d8e40 05f35770 500904fe 054d8e40 0516c5ec 014f2038 01521988 059171c5
   end

Please inform me about this bug and what I can do about it.

                                  Alexander Maryanovsky.
======================================================================

Test program from JDC Comments:

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

/**
 * Demonstrates Java 1.2 bug 4200425
 * @author Barton A. Smith
 */
public class BugTest extends javax.swing.JFrame {
  static javax.swing.JTextField JTextField_out = new javax.swing.JTextField();
  private static int i;
  static BugTest bt;

  public BugTest() {
    setTitle("Bug 4200425 Test");
    setDefaultCloseOperation(javax.swing.JFrame.DO_NOTHING_ON_CLOSE);
    getContentPane().setLayout(new BorderLayout(0,0));
    setSize(300,300);
    setVisible(false);

    JTextField_out.setDoubleBuffered(true);
    this.getContentPane().add(JTextField_out);
    JTextField_out.setBounds(100,100,100,18);
  }

  static public void main(String args[]) {
    bt = new BugTest();
    bt.setVisible(true);

    try { // delay 1 second
      Thread.sleep(1000);
    }
    catch (InterruptedException e) {}

    for(i=0; i<Integer.MAX_VALUE; i++) {
      JTextField_out.setText(String.valueOf(i));

      try { // delay 1 second
Thread.sleep(10);
      }
      catch (InterruptedException e) {}
    }
  }
}