Name: gm110360 Date: 12/11/2003


FULL PRODUCT VERSION :
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

FULL OS VERSION :
Linux bern 2.4.18-4GB #1 Wed Mar 27 13:57:05 UTC 2002 i686 unknown


A DESCRIPTION OF THE PROBLEM :
Encoding Colors and Fonts in Applets with XMLEncoder throws Exceptions (both, either using appletviewer or java-plugin).
These exceptions are not thrown using a JFrame or in non-gui apps!!!

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try to encode a Color or a Font with XMLEncoder inside an Applet.

EXPECTED VERSUS ACTUAL BEHAVIOR :
<?xml version="1.0" encoding="UTF-8"?>
<java version="1.4.1_01" class="java.beans.XMLDecoder">
 <object class="java.awt.Color">
  <int>255</int>
  <int>0</int>
  <int>0</int>
  <int>255</int>
 </object>
 <object class="java.awt.Font">
  <string>Arial</string>
  <int>0</int>
  <int>20</int>
 </object>
<?xml version="1.0" encoding="UTF-8"?>
<java version="1.4.1_01" class="java.beans.XMLDecoder">


ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.Exception: discarding statement XMLEncoder0.writeObject(Color0);
        at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:339)
        at java.beans.XMLEncoder.writeObject(XMLEncoder.java:253)
        at test.XMLEncoderTestPanel.encode(XMLEncoderTestPanel.java:60)
        at test.XMLEncoderTestApplet.init(XMLEncoderTestApplet.java:37)
        at sun.applet.AppletPanel.run(AppletPanel.java:347)
        at java.lang.Thread.run(Thread.java:536)
java.lang.Exception: discarding statement XMLEncoder0.writeObject(Font0);
        at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:339)
        at java.beans.XMLEncoder.writeObject(XMLEncoder.java:253)
        at test.XMLEncoderTestPanel.encode(XMLEncoderTestPanel.java:61)
        at test.XMLEncoderTestApplet.init(XMLEncoderTestApplet.java:37)
        at sun.applet.AppletPanel.run(AppletPanel.java:347)
        at java.lang.Thread.run(Thread.java:536)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
Class XMLEncoderTestApplet:


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

public class XMLEncoderTestApplet extends JApplet {
  
  public XMLEncoderTestApplet() {
  }

  public void init() {
    super.init();
    XMLEncoderTestPanel panel = new XMLEncoderTestPanel();
    getContentPane().add(BorderLayout.CENTER, panel);
    panel.encode();
  }
  
}



Class XMLEncoderTestFrame:


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

public class XMLEncoderTestFrame extends JFrame {
  
  public XMLEncoderTestFrame() {
    initComponents();
    XMLEncoderTestPanel panel = new XMLEncoderTestPanel();
    getContentPane().add(BorderLayout.CENTER, panel);
    panel.encode();
    pack();
  }
  
  private void initComponents() {
    
    addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowClosing(java.awt.event.WindowEvent evt) {
        exitForm(evt);
      }
    });
    
    pack();
  }
  
  /** Exit the Application */
  private void exitForm(java.awt.event.WindowEvent evt) {
    System.exit(0);
  }
  
  public static void main(String args[]) {
    new XMLEncoderTestFrame().show();
  }
  
}



Class XMLEncoderTestPanel:


import java.awt.Color;
import java.awt.Font;
import java.beans.*;
import java.io.*;
import java.util.*;
import javax.swing.*;


public class XMLEncoderTestPanel extends JPanel {
  
  public XMLEncoderTestPanel() {
    initComponents();
  }

  private void initComponents() {
    jScrollPane1 = new javax.swing.JScrollPane();
    jTextArea1 = new javax.swing.JTextArea();

    setLayout(new java.awt.BorderLayout());

    jTextArea1.setEditable(false);
    jScrollPane1.setViewportView(jTextArea1);

    add(jScrollPane1, java.awt.BorderLayout.CENTER);

  }
  
  public void encode() {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(baos);
    XMLEncoder encoder = new XMLEncoder(bos);
    encoder.setExceptionListener(new ExceptionListener(){
      public void exceptionThrown(Exception ex){
        ex.printStackTrace();
      }
    });
    try{
      encoder.writeObject(Color.RED);
      encoder.writeObject(new Font("Arial", 0, 20));
      encoder.flush();
      jTextArea1.setText(baos.toString());
    } catch(Exception ex1){
      ex1.printStackTrace();
    } finally {
      encoder.close();
    }
  }
  
  
  // Variables declaration - do not modify
  private javax.swing.JScrollPane jScrollPane1;
  private javax.swing.JTextArea jTextArea1;
  // End of variables declaration
  
}



XMLEncoderTestApplet.html:


<HTML>
<HEAD>
   <TITLE>Applet HTML Page</title>
</head>
<BODY>

<H3><HR WIDTH="100%">Applet HTML Page<HR WIDTH="100%"></h3>

<P>
<APPLET code="XMLEncoderTestApplet.class" width=350 height=200></applet>
</p>

<HR WIDTH="100%"><FONT SIZE=-1><I>Generated by NetBeans IDE</i></font>
</body>
</html>



---------- END SOURCE ----------
(Incident Review ID: 183149)
======================================================================