Mouse cursor is not changing to text cursor when the mouse is inside the textarea from jdk6.0 b92

I have a frame, which has a TextArea & a TextField. I type some characters into the textarea so that both the scrollbars move. When i drag the vertical scrollbar tumb towards the scrollbar intersection area & release the mouse or drag the vertical scrollbar tumb towards frame border & release. Now when i move the mouse pointer inside the textarea the mouse pointer should change to text cursor. but this does not happen. But when i move the mouse on the text field , the mouse pointer changes from default cursor to text cursor.
This happens from mustang b92 onwards. It works fine in mustang b90. This "may be" a regression of http://monaco.sfbay.sun.com/detail.jsf?cr=6429174.

Step to reproduce
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1) Run the attached program.
2) Type some characters into the textarea. So that vertical & horizontal scrollbar tumb moves.
3) Drag the vertical scrollbar tumb towards the scrollbar intersection area & release the mouse or drag the vertical scrollbar tumb towards frame border & release.
4) Move the mouse inside the text area. Observe that mouse cursor remains to default cursor. If you see the same then the bug is reproduced.