Name: mc57594 Date: 11/27/99


java version "1.2.2"

It looks like the FocusEvents generated by JTextField do not get dispatched
by the EventQueue's dispatchEvent() method. I subclassed the EventQueue and
pushed it in place of the original (default) EventQueue, using the Toolkit's
getSystemEventQueue() method. However, printing the events dispatched
from the queue shows all kinds of events except the FocusEvents.

Do FocusEvents get a special treatment, or is it a bug? I am using Java
1.2.2 on WinNT 4.0.

Here is the test case:

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

class Main extends JFrame
{
Main()
{
super("FocusEvents");
Toolkit.getDefaultToolkit().getSystemEventQueue().push(new
NotifiableEventQueue());
Rectangle frame = new Rectangle(20, 20, 100, 21);
JTextField field1 = new JTextField();
field1.setBounds(frame);
getContentPane().add(field1);
frame.y = 50;
JTextField field2 = new JTextField();
field2.setBounds(frame);
getContentPane().add(field2);
addNotify();
pack();
Insets insets = getInsets();
setSize(insets.left + insets.right + 150, insets.top +
insets.bottom + 150);
}

static public void main(String[] args)
{
(new Main()).setVisible(true);
}
}

import java.awt.*;
import java.awt.event.*;

public class NotifiableEventQueue extends EventQueue
{
public NotifiableEventQueue() {}

protected void dispatchEvent(AWTEvent event)
{
System.out.println("dispatchEvent(" + event + ")");
super.dispatchEvent(event);
}

public void postEvent(AWTEvent event)
{
System.out.println("postEvent(" + event + ")");
super.postEvent(event);
}
}

Compile and run this program. You will see all kinds of events printed from the
dispatchEvent() method, but when the text field gains or looses the focus
(either by clicking the mouse, or pressing the Tab key), nothing happens.
(Review ID: 98343)
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