setBounds doesn't enlarge Component

FULL PRODUCT VERSION :
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b22)
Java HotSpot(TM) Client VM (build 11.0-b08, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
I tried to resize components for example: java.awt.TextField without success.

I set initial bounds of a TextField in a Panel with null Layout. Everything is ok. I tried to change bounds automatically and the component doesn't change the size.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Create an empty applet
- set null layout to applet container
- define textfield with bounds for example 10, 10, 50, 20
- add textfield to applet container
- show applet
- change bounds to 10, 10 , 2, 2 (through program logic)
- change bounds back to 10, 10, 50, 20 (through program logic)

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
painted textield with "visible" bounds 10, 10 , 50, 20
ACTUAL -
invalid repainted textfield

bounds are 10, 10 , 50, 20 but I don't see the textfield on screen, as expected.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package jdk.test;

import java.applet.Applet;
import java.awt.Button;
import java.awt.Rectangle;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * Simple setBounds and resize test
 *
 * @author JRx
 */
public class BugReportApplet extends Applet
                              implements ActionListener
{
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Members
    //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

/** default username bounds */
private static final Rectangle REC_USERNAME = new Rectangle(10, 10, 80, 20);

/** input username */
private TextField tfUsername;

/** test button */
private Button butResize;

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Override
    //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

@Override
public void start()
{

}

@Override
public void stop()
{

}

@Override
public void init()
{
/* Username */

tfUsername = new TextField(10);
tfUsername.setBounds(BugReportApplet.REC_USERNAME);

butResize = new Button("Resize");
butResize.setBounds(10, 40, 50, 25);

butResize.addActionListener(this);

/* MAIN LAYOUT */

setLayout(null);

add(tfUsername);

add(butResize);
}

@Override
public void destroy()
{

}

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Interfaces
    //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

//ACTIONLISTENER

public void actionPerformed(ActionEvent ae)
{
Rectangle rec = tfUsername.getBounds();


if (rec.width < 10)
{
tfUsername.setBounds(BugReportApplet.REC_USERNAME);
}
else
{
tfUsername.setBounds(10, 10, 5, 5);
}
}

} //BugReportApplet

---------- END SOURCE ----------