JDK Version: 1.2fcs-F
OS: Solaris 2.6
Locale: C, zh

If we add JTextField in JWindow, we find that, we could not see the cursor in
the JTextField, and the JTextField will easily have a Focus problem, that 
is if we type chars and hilight in it, and after several times, we will find
that the JTextField will not gain focus any more. Following is a program to 
reproduce it.
======================JTextFocus.java=================================
import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.*;

public class JTextFocus {
    JWindow win;
    JTextField tf1;
    JTextField tf2;

    public JTextFocus() {
	win = new JWindow();
	tf1 = new JTextField("ABCDEFGH", 10);
	tf2 = new JTextField("12345678", 10);
	win.getContentPane().setLayout(new FlowLayout());
	win.getContentPane().add(tf1);
	win.getContentPane().add(tf2);
	win.pack();
	win.show();
    }

    public static void main(String args[]) {
	new JTextFocus();
    }
}
=========================================================================

[  xxxxx@xxxxx   1998-08-18]

N/A

This is not swing specifc, focus in awt Windows is problematic. If the appropriate events are not generated swing will not work correctly, which is what is happening. Refer to bug 4186928 for more information on this.