The windows which has many components( TextField ) can not get
focus after once releasing focus.

1. configration
  OS : windows NT (sp4)
  JDK ver. : 1.3 FCS
  
2. Reproduction

 (1) Compile the attached java program "Test3"
 (2) invoke
       "java Test3"
       
     -> Small windows which has two text fields
         will show up at the top-left of display.
         
 (3) Move the focus to each textfield by pressing
     "Tab" key or clicking mouse.
     
 (4) Move focus to another application(ex. explorer) and
     move back to this application(Test3).
     
 (5) Press "tab" key or click the mouse, and then you can see
     the focus not return to this application.

===========================================================================
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;

public class Test3 extends java.applet.Applet
                               implements WindowListener, FocusListener {

       private JTextField txtUsrID = new JTextField();
       private JTextField txtPass = new JTextField();
       Component comp = null;
       static Frame frm = null;

       public static void main(String[] args) {
               frm = new Frame("Panel forcus test");
               frm.setName("Test_frame");
               Test3 sample = new Test3();
               sample.init();
               sample.start();
               frm.add("Center", sample);
               frm.setSize(400,400);
               frm.addWindowListener(sample);
               frm.addFocusListener(sample);
               frm.show();
       }


       public void init() {
               setLayout(new BorderLayout());

               JPanel p = new JPanel();
               p.setLayout(null);

               txtUsrID.setBounds(new Rectangle(196, 67, 142, 28));
               txtUsrID.setText("");
               txtUsrID.setName("ID_field");
               txtUsrID.addFocusListener(this);

               txtPass.setBounds(new Rectangle(196, 103, 142, 28));
               txtPass.setText("");
               txtPass.setName("Password_field");
               txtPass.addFocusListener(this);

               p.add(txtUsrID);
               p.add(txtPass);

               add(p);
       }

       public void windowActivated(WindowEvent e) {
               System.out.println("windowActivated[1]");
       }
       public void windowDeactivated(WindowEvent e) {
               System.out.println("windowDeactivated");
       }
       public void windowClosed(WindowEvent e) {}
       public void windowClosing(WindowEvent e) {
               System.exit(0);
       }
       public void windowDeiconified(WindowEvent e) {}
       public void windowIconified(WindowEvent e) {}
       public void windowOpened(WindowEvent e) {}

       public void focusGained(FocusEvent e) {
               Component tex = (Component)e.getSource();
               if( tex == null )
                       System.out.println( "source is null" + " focusGained");
               else{
                       System.out.println( tex.getName() + " focusGained[2]");
               }
       }
       public void focusLost(FocusEvent e) {
               Component tex = (Component)e.getSource();
               if( tex == null )
                       System.out.println( "source is null" + " focusLost");
               else{
                       System.out.println( tex.getName() + " focusLost");
               }
       }

}
===============================================================
Addition and correction about the reproducing process

 (3) Move the focus to each textfield by pressing
     "Tab" key or clicking mouse *in the other textfield.*

 (4) Move focus to another application(ex. explorer) **by clicking mouse
     on another application's window** and move back to this application
    **by clicking mouse on test application's window**.

 (5) Press "tab" key or click the mouse, and then you can see
     the focus *does not move*, which is, focus does not work as
     step (3).