The bug locks up entire user screens over the time.
The Swing application may loose the focus since a completely independent application gains it. The cursor in the origibal Swing textfield will still
blink (it thinks it has a focus). This feature is already a bug (cosmetic).
Gaining the focus back through <Alt><Tab> to the Swing application and clicking
into another text field will not make the focus gain event being send to the
new textfield component.

The behaviour can be easily demonstrated by using the SwingSet application
which comes through the package in the path /usr/demo/JAVA1.2/demo/jfc/SwingSet

The bug may be reproduced by:
1.) cd /usr/demo/JAVA1.2/demo/jfc/SwingSet
2.) /usr/j2se/bin/java -jar SwingSet.jar
3.) Pick tabbed pane >Labels<
4.) Get focus on textfield >Type here< by clicking the mouse into it.
5.) Enter abc
6.) Gain focus on a dtterm by clicking on the the frame

Error1: The cursor of the text field is still blinking.
It has not got a focus lost event.
7.) Gain focus on the swing application by using the key combination <ALT><TAB>

8.) Click with mouse on text field <and here>

Error2: Textfield >Type here< does not get a focus lost event since the cursor
is still blinking
Error3: The textfield >and here< does not get a focus gained event since no
cursor pops up

The field >and here< can be used for input
Everything start getting messy: Two cursor are now blinking ...

The real live application get screwed up since additional action like high lighting are being triggered the right way...