Programatically appending text to TextArea behaves differently with XAWT

OPERATING SYSTEM(S)
--------------------
RHEL3
FULL JDK VERSION(S):
-------------------
1.5.0_04-b05
DESCRIPTION:
------------
Run the following test case:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class test implements ActionListener{
public Frame frame;
public TextArea ta;
public test(){
frame=new Frame();
frame.setLayout(new FlowLayout());
ta=new TextArea();
frame.add(ta);
frame.show();
ta.append("123");
System.out.println(ta.getCaretPosition()+"<---Expected 3");
ta.append("123");
System.out.println(ta.getCaretPosition()+"<---Expected 6");

}
public static void main(String args[]){
test t=new test();
}
public void actionPerformed(ActionEvent e) {
}
}
With the motif toolkit the values 3 and 6 are given which is consistent with
the behaviour on Windows.
With the X toolkit the value 0 is given both times.
Expanding the frame it appears that appending the text in the XAWT Text area leaves the cursor
at the start of the text whereas with MAWT the cursor is moved to the end of the text.