Name: dsR10051 Date: 04/09/2001


Method
protected void writeObject(Object o) of class java.beans.XMLEncoder
does not write java.awt.MenuShortcut object to the output stream.

Here is minimized test:
import java.io.*;
import java.beans.*;
import java.awt.*;

public class Test0012 {

    public static void main(String[] args) {

        MenuShortcut object = new MenuShortcut(java.awt.event.KeyEvent.VK_1, true);

        ByteArrayOutputStream os = new ByteArrayOutputStream();
        XMLEncoder xmlEnc = new XMLEncoder(os);
        xmlEnc.writeObject(object);
        xmlEnc.flush();
        xmlEnc.close();

        ByteArrayInputStream in = new ByteArrayInputStream(os.toByteArray());
        XMLDecoder xmlDec = new XMLDecoder(in);
        System.out.println("OutputStream");
        System.out.println(os.toString());

        MenuShortcut res = (MenuShortcut) xmlDec.readObject();
        if(res.equals(object)) {
            System.out.println("OKAY");
        } else {
            System.out.println("Failed");
            System.out.println("MenuShortcut: " + res);
            System.out.println("Expected : " + object);
        }
    }
}

--- output ---
%java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b58)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b58, mixed mode)
%java Test0012
Warning:
    Cannot allocate colormap entry for default background

java.lang.InstantiationException: java.awt.MenuShortcut
Continuing ...
java.lang.Exception: discarding statement XMLEncoder0.writeObject(MenuShortcut0);
Continuing ...
OutputStream
<?xml version="1.0" encoding="UTF-8"?>
<java version="1.4.0-beta" class="java.beans.XMLDecoder">
</java>

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException
        at java.beans.ObjectHandler.dequeueResult(XMLDecoder.java:270)
        at java.beans.XMLDecoder.readObject(XMLDecoder.java:148)
        at Test0012.main(Test0012.java:22)

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Name: dsR10051 Date: 04/09/2001



Besides, method ignores the MenuShortcut property
of java.awt.MenuItem object when it writes MenuItem. Example:
import java.io.*;
import java.beans.*;
import java.awt.*;

public class Test0014 {

    public static void main(String[] args) {

        MenuItem object = new MenuItem("Label");
        MenuShortcut ms = new MenuShortcut(java.awt.event.KeyEvent.VK_1, true);
        object.setShortcut(ms);

        ByteArrayOutputStream os = new ByteArrayOutputStream();
        XMLEncoder xmlEnc = new XMLEncoder(os);
        xmlEnc.writeObject(object);
        xmlEnc.flush();
        xmlEnc.close();

        ByteArrayInputStream in = new ByteArrayInputStream(os.toByteArray());
        XMLDecoder xmlDec = new XMLDecoder(in);
        System.out.println("OutputStream");
        System.out.println(os.toString());

        MenuItem res = (MenuItem) xmlDec.readObject();
        if(res.getShortcut().equals(ms)) {
            System.out.println("OKAY");
        } else {
            System.out.println("Failed");
            System.out.println("MenuItem: " + res);
            System.out.println("Expected: " + object);
        }
    }
}
--- output ---
%java Test0014
Warning:
    Cannot allocate colormap entry for default background

java.lang.InstantiationException: java.awt.MenuShortcut
Continuing ...
java.lang.RuntimeException: failed to evaluate: <unbound>=MenuShortcut.new();
Continuing ...
OutputStream
<?xml version="1.0" encoding="UTF-8"?>
<java version="1.4.0-beta" class="java.beans.XMLDecoder">
  <object class="java.awt.MenuItem">
    <void property="actionCommand">
      <string>Label</string>
    </void>
    <void property="label">
      <string>Label</string>
    </void>
    <void property="name">
      <string>menuitem0</string>
    </void>
  </object>
</java>

Exception in thread "main" java.lang.NullPointerException
        at Test0014.main(Test0014.java:25)


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