FULL PRODUCT VERSION :
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Linux debian 2.6.16.9 #2 PREEMPT Thu May 17 20:20:48 CEST 2007 i686 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
When a new window is opened by an applet java, I can't close the window clicking on the "x" button or with keys ATL-F4; notice that I can modify the dimensions of the window but I can't close it.

You can reproduce this bug loading the chat on http://www.actionchat.com/chat/english.shtml or www.publiweb.it/chat.

I've got this problem both with JRE 1.5.x and with JRE 1.6.x, but with the 1.4 series the "x" button works properly.

Notice that on Windows, the "x" button works properly in the same websites with every JRE version, also with 1.5/1.6 series, so it's a problem related to Linux.

My test have been made with Firefox, 1.0, 1.5, 2.0 (same results).

I don't know if this is the right place to report a bug, if it is not, please give me another link where I can report it.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
 -load the chat at http://www.actionchat.com/chat/english.shtml
- try to close the window opened by the applet with "x" button or with ALT-F4


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
- the window should be closed
ACTUAL -
- nothing happens

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
No workaround.

Release Regression From : 1.4.2_12
The above release value was the last known release where this 
bug was not reproducible. Since then there has been a regression.