Name: dsR10051 Date: 06/09/2000


The java.awt.Container.AccessibleAWTContainer does not generate PropertyChangeEvent
when children are added.
The javadoc says about its inner class
java.awt.Container.AccessibleAWTContainer.AccessibleContainerHandler

        /**
         * Fire PropertyChange listener, if one is registered,
         * when children added/removed.
         */
        protected class AccessibleContainerHandler
            implements ContainerListener {

But the test bellow demonstrates that propertyChange method of the registered
listener is not called.

Here is a minimized test:

--- Test.java ---

import java.awt.*;
import javax.accessibility.*;
import java.beans.*;

public class Test {
    public static void main(String argv[]) {

        Panel c=new Panel();

        MyPropertyChangeListener listener = new MyPropertyChangeListener();
        c.getAccessibleContext().addPropertyChangeListener(listener);

        c.add(new Button());

        if(listener.added) {
            System.out.println("Passed");
        } else {
            System.out.println("Method does not notify listener");
        }

    }

}

class MyPropertyChangeListener implements PropertyChangeListener {
    public boolean added = false;

    public void propertyChange(PropertyChangeEvent evt) {
        added = true;
    }
}

--- Output ---
%/set/java/jdk1.4/solaris/bin/java -version
java version "1.4.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0beta-b16)
Java HotSpot(TM) Client VM (build 1.3.0rc3-Z, interpreted mode)
%/set/java/jdk1.4/solaris/bin/java Test
Method does not notify listener

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