Observed on Solaris Kestrel Beta (build M). Update: Still observed with build J.
javax.swing.ImageIcon$AccessibleImageIcon throws a java.io.NotSerializableException in *JOptionPane*
[updated by raj.premkumar@eng 1999-10-13]

Name: sg39081 Date: 09/01/99


When you try to serialize a JLabel or whatever with a ImageIcon in it, the following exception is thrown:

java.io.NotSerializableException: javax.swing.ImageIcon$AccessibleImageIcon
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1123)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1773)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:472)
at javax.swing.JLabel.writeObject(JLabel.java:800)
at java.lang.reflect.Method.invoke(Native Method)
at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1810)
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1185)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at java.io.ObjectOutputStream.outputArray(ObjectOutputStream.java:1073)
at java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(ObjectOutputStream.java:451)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:356)
at java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1773)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:472)
at java.awt.Container.writeObject(Container.java:1857)
at java.lang.reflect.Method.invoke(Native Method)
at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1810)
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1185)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at com.teamenergy.products.gk.LabelDemo.actionPerformed(LabelDemo.java:42)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1230)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1265)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:238)
at java.awt.Component.processMouseEvent(Component.java:3612)
at java.awt.Component.processEvent(Component.java:3441)
at java.awt.Container.processEvent(Container.java:1253)
at java.awt.Component.dispatchEventImpl(Component.java:2529)
at java.awt.Container.dispatchEventImpl(Container.java:1302)
at java.awt.Component.dispatchEvent(Component.java:2443)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2504)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2288)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2191)
at java.awt.Container.dispatchEventImpl(Container.java:1289)
at java.awt.Window.dispatchEventImpl(Window.java:854)
at java.awt.Component.dispatchEvent(Component.java:2443)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:302)
at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:95)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:86)


Here is some source code to demonstrate:

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

/**
 * Display a JLabel with an ImageIcon in a JPanel (although it doesnt matter
 * what it is displayed in) and include a save button.
 * When the button is pressed, attempt to serialize the JPanel containing the
 * JLabel. It dies bigtime.
 */
public class LabelDemo extends JFrame
   implements ActionListener
{
   private static final String FILENAME = "somegif.gif";
   private JPanel mainPanel;
   private JButton saveButton;

   public LabelDemo()
   {
      super("LabelDemo");

      mainPanel = new JPanel();
      mainPanel.add(new JLabel(new ImageIcon(FILENAME)));

      saveButton = new JButton("Save");
      saveButton.addActionListener(this);

      getContentPane().add(BorderLayout.CENTER, mainPanel);
      getContentPane().add(BorderLayout.SOUTH, saveButton);
    }

   public void actionPerformed(ActionEvent e)
   {
      try
      {
         System.out.println("About to serialize");
         ObjectOutputStream os = new ObjectOutputStream(
                     new FileOutputStream("someFile"));
         os.writeObject(mainPanel);
         os.close();
      }
      catch (IOException ex)
      { ex.printStackTrace();; }
   }

    public static void main(String[] args) {
        JFrame frame = new LabelDemo();
 
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

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


PLEASE fix this! Serializing a JEditorPane with embedded JTables and JLabels with ImageIcons is impossible at the moment.
(Review ID: 94582)
======================================================================

Name: skT88420 Date: 09/07/99


ImageIcon is not serializable anymore when switching from
JDK 1.2 to 1.3 (beta)
Exception:
java.io.NotSerializableException: javax.swing.ImageIcon$AccessibleImageIcon
(Review ID: 94795)
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