FULL PRODUCT VERSION :
java version "1.5.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Windows XP Professional with SP1a (Simplified Chinese)

EXTRA RELEVANT SYSTEM CONFIGURATION :
NetVista M42 8307-41C (CPU: Pentium 4 2.4GHz, Memory: 512MB, Video: Intel 82845G)

A DESCRIPTION OF THE PROBLEM :
BorderLayout works incorrectly with ExtB character
A JFrame window appear, South and North JTextField can't displayed

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Run testcase 'java LayoutExtBTest'
 2. A JFrame window appear, South and North JTextField can't displayed <- PROBLEM

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
South and North JTextField should be display with an Ext.B character.
ACTUAL -
A JFrame window appear, South and North JTextField can't displayed

ERROR MESSAGES/STACK TRACES THAT OCCUR :
nothing

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
final String DBCSSTRINGS = "Test\uD840\uDC00";


// Constructor
public LayoutExtBTest() {
this.CompKind = "swing";
this.CompName = "JTextField";

// invoke made comp. method
makeComp(CompKind, CompName);

}

void makeComp(String compKind, String compName) {
mainFrame = new JFrame();
mainFrame.setTitle("Unicode4.0 test case ");
addJTextFieldComp();

// show main frame
mainFrame.setSize(300, 200);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setVisible(true);
// mainFrame.pack();
}


void addJTextFieldComp() {
JTextField jb1 = new JTextField(DBCSSTRINGS, JTextField.CENTER);
JTextField jb2 = new JTextField(DBCSSTRINGS, JTextField.CENTER);
JTextField jb3 = new JTextField(DBCSSTRINGS, JTextField.CENTER);
JTextField jb4 = new JTextField(DBCSSTRINGS, JTextField.CENTER);
JTextField jb5 = new JTextField(DBCSSTRINGS, JTextField.CENTER);

mainFrame.getContentPane().add("North", jb1);
mainFrame.getContentPane().add("South", jb2);
mainFrame.getContentPane().add("Center", jb3);
mainFrame.getContentPane().add("West", jb4);
mainFrame.getContentPane().add("East", jb5);
}
---------- END SOURCE ----------