EncodeBug2.main(XmlEncodeBug2.java:122)
(Review ID: 129457)
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Name: nt126004 Date: 08/06/2001


java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)


There is an exception thrown when a JMenu with a JMenuItem is encoded
by an XMLEncoder.

Here is the source code
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import java.awt.*;
import java.beans.*;
import java.io.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.net.URL;
import javax.swing.*;

public class XmlEncodeBug2
{
   private XMLDecoder decoder = null;
   private XMLEncoder encoder = null;
   private String fileName;

   public XmlEncodeBug2()
   {
      DateFormat nameExt = new SimpleDateFormat("yyyyMMdd_HHmmssSSS");
      String name = "XmlEncode_" + nameExt.format(new Date()) + ".xml";
      fileName = name;
   }

   public XmlEncodeBug2(String file)
   {
      fileName = file;
   }


   public void load() throws IOException
   {
      decoder = new XMLDecoder(
                new BufferedInputStream(
                new FileInputStream(fileName)));
      decoder.setExceptionListener(new ExceptionListener() {
         public void exceptionThrown(Exception ex) {
            xmlException(ex);
         }});
   }

   public void store() throws IOException
   {
      encoder = new XMLEncoder(
                new BufferedOutputStream(
                new FileOutputStream(fileName)));
      encoder.setExceptionListener(new ExceptionListener() {
         public void exceptionThrown(Exception ex) {
            xmlException(ex);
         }});
   }

   public Object decode() throws IOException
   {
      return decoder.readObject();
   }

   public void encode(Object o)
   {
          encoder.writeObject(o);
   }

   public void close()
   {
      if (decoder != null)
      {
         try
         {
            decoder.close();
         }
         catch(Exception ex) {}
         finally
         {
            decoder = null;
         }
      }
      if (encoder != null)
      {
         try
         {
            encoder.close();
         }
         catch(Exception ex) {}
         finally
         {
            encoder = null;
         }
      }
   }

   public static void xmlException(Exception ex)
   {
      System.out.println("xmlException: " + ex.toString());
      ex.printStackTrace();
   }

   public static void main(String[] args)
   {
      try
      {
         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());


         //
         JFrame frame = new JFrame("Original Test Frame");
         frame.getContentPane().setBackground(Color.cyan);
         frame.getContentPane().setForeground(Color.blue);
         frame.setSize(new Dimension(300, 300));

         JMenuBar jmenubar = new JMenuBar();
         JMenu menu = new JMenu("File");
         JMenuItem item = new JMenuItem("Open");
         menu.add(item);
         jmenubar.add(menu);
         frame.setJMenuBar(jmenubar);

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

         XmlEncodeBug2 dec = new XmlEncodeBug2("SimpleEncode.xml");
         dec.store();
         dec.encode(frame);
         dec.close();

         dec.load();
         JFrame test = (JFrame) dec.decode();
         dec.close();

         test.setTitle("Rebuilt Test Frame");
         test.setVisible(true);
      }
      catch(IOException ioex)
      {
         ioex.printStackTrace();
      }
      catch(Exception ex)
      {
         ex.printStackTrace();
      }
   }
}

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Here is the trace
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**********************************************************
-------------------------------------------------------------
C:\Java\jdk1.4\bin\javaw -
classpath "D:\Donaldo\JavaProjects\SimpleEncode\classes;D:\abacus\mainline\olf\j
ava\lib;C:\Java\jdk1.4\demo\jfc\Java2D\Java2Demo.jar;C:\Java\jdk1.4
\docs\guide\imf\spi-sample\CityIM.jar;C:\Java\jdk1.4
\jre\lib\ext\dnsns.jar;C:\Java\jdk1.4\jre\lib\ext\ldapsec.jar;C:\Java\jdk1.4
\jre\lib\ext\sunjce_provider.jar;C:\Java\jdk1.4\jre\lib\i18n.jar;C:\Java\jdk1.4
\jre\lib\jaws.jar;C:\Java\jdk1.4\jre\lib\jce.jar;C:\Java\jdk1.4
\jre\lib\jsse.jar;C:\Java\jdk1.4\jre\lib\rt.jar;C:\Java\jdk1.4
\jre\lib\sunrsasign.jar;C:\Java\jdk1.4\lib\dt.jar;C:\Java\jdk1.4
\lib\htmlconverter.jar;C:\Java\jdk1.4\lib\tools.jar" XmlEncodeBug2
xmlException: java.lang.InstantiationException:
javax.swing.JMenuItem$AccessibleJMenuItem
java.lang.InstantiationException: javax.swing.JMenuItem$AccessibleJMenuItem
at java.lang.Class.newInstance0(Class.java:276)
at java.lang.Class.newInstance(Class.java:249)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:30)
at sun.reflect.InflatableMethodAccessorImpl.invoke(InflatableMethodAccessorImpl.java:48)
at java.lang.reflect.Method.invoke(Method.java:306)
at java.beans.Statement.invoke(Statement.java:421)
at java.beans.Expression.getValue(Expression.java:103)
at java.beans.Encoder.getValue(Encoder.java:86)
at java.beans.Encoder.get(Encoder.java:187)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:100)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.DefaultPersistenceDelegate.initBean(DefaultPersistenceDelegate.java:286)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:346)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.javax_swing_JMenu_PersistenceDelegate.initialize(MetaData.java:522)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.java_awt_Container_PersistenceDelegate.initialize(MetaData.java:360)
at java.beans.PersistenceDelegate.initialize(PersistenceDelegate.java:194)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:344)
at java.beans.javax_swing_JComponent_PersistenceDelegate.initialize(MetaData.java:481)
at java.beans.PersistenceDelegate.initialize(PersistenceDelegate.java:194)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:344)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.DefaultPersistenceDelegate.doProperty(DefaultPersistenceDelegate.java:222)
at java.beans.DefaultPersistenceDelegate.initBean(DefaultPersistenceDelegate.java:243)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:346)
at java.beans.javax_swing_JFrame_PersistenceDelegate.initialize(MetaData.java:421)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:266)
at XmlEncodeBug2.encode(XmlEncodeBug2.java:59)
at XmlEncodeBug2.main(XmlEncodeBug2.java:122)
xmlException: java.lang.Exception: discarding statement
JMenuItem0.addChangeListener(JMenuItem$AccessibleJMenuItem0);
java.lang.Exception: discarding statement JMenuItem0.addChangeListener
(JMenuItem$AccessibleJMenuItem0);
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:338)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.DefaultPersistenceDelegate.initBean(DefaultPersistenceDelegate.java:286)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:346)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.javax_swing_JMenu_PersistenceDelegate.initialize(MetaData.java:522)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.DefaultPersistenceDelegate.invokeStatement(DefaultPersistenceDelegate.java:231)
at java.beans.java_awt_Container_PersistenceDelegate.initialize(MetaData.java:360)
at java.beans.PersistenceDelegate.initialize(PersistenceDelegate.java:194)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:344)
at java.beans.javax_swing_JComponent_PersistenceDelegate.initialize(MetaData.java:481)
at java.beans.PersistenceDelegate.initialize(PersistenceDelegate.java:194)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:344)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.DefaultPersistenceDelegate.doProperty(DefaultPersistenceDelegate.java:222)
at java.beans.DefaultPersistenceDelegate.initBean(DefaultPersistenceDelegate.java:243)
at java.beans.DefaultPersistenceDelegate.initialize(DefaultPersistenceDelegate.java:346)
at java.beans.javax_swing_JFrame_PersistenceDelegate.initialize(MetaData.java:421)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:106)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeExpression(Encoder.java:261)
at java.beans.XMLEncoder.writeExpression(XMLEncoder.java:354)
at java.beans.PersistenceDelegate.writeObject(PersistenceDelegate.java:103)
at java.beans.Encoder.writeObject(Encoder.java:57)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:262)
at java.beans.Encoder.writeObject1(Encoder.java:193)
at java.beans.Encoder.cloneStatement(Encoder.java:206)
at java.beans.Encoder.writeStatement(Encoder.java:237)
at java.beans.XMLEncoder.writeStatement(XMLEncoder.java:325)
at java.beans.XMLEncoder.writeObject(XMLEncoder.java:266)
at XmlEncodeBug2.encode(XmlEncodeBug2.java:59)
at Xml