From: <glassfish_at_javadesktop.org>
Date: Wed, 03 Sep 2008 23:07:35 PDT

<sun-web-app>
  <locale-charset-info default-locale="">
    <locale-charset-map locale="" charset=""/>
    <parameter-encoding default-charset="UTF-8"/>
  </locale-charset-info>
</sun-web-app>

How about this?
[Message sent by forum member 'biaji' (biaji)]

http://forums.java.net/jive/thread.jspa?messageID=297097