Sun Java System Web Server (Glassfish) Parameter CharacterEncoding

sun-web.xml File Internationalization Elements

use parameter-encoding default-charset to do request.setCharacterEncoding("UTF-8");
edit sun-web.xml File

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 9.0 Servlet 2.5//EN" "http://www.sun.com/software/appserver/dtds/sun-web-app_2_5-0.dtd">
<sun-web-app error-url="">
  <locale-charset-info>  
    <locale-charset-map locale="" charset="UTF-8" />
    <parameter-encoding default-charset="UTF-8" />  
  </locale-charset-info>  
</sun-web-app>