FULL PRODUCT VERSION :
1.5.0_03

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

A DESCRIPTION OF THE PROBLEM :
In AWT's TextField, click the mouse right button, select "Insert Unicode control character", and then select "RLM Right-to-Left mark(R)", then the TextField will disappear from the panel/frame. The TextField will not disappear if other options is selected.
Such issue also exists on JRE1.4.2.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
In AWT's TextField, click the mouse right button, select "Insert Unicode control character", and then select "RLM Right-to-Left mark(R)", then the TextField will disappear from the panel/frame.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The TextField should not disappear.
ACTUAL -
The TextField disappears.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.Frame;
import java.awt.TextField;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class DisappearedTextField extends Frame {

public DisappearedTextField() {
init();
}

private void init(){
TextField nameTF = new TextField();
this.add(nameTF);
this.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}

public static void main(String[] args) {
DisappearedTextField disappearedTextField = new DisappearedTextField();
disappearedTextField.pack();
disappearedTextField.setVisible(true);
}

}

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