While using Glassfish v3.1 with JSF 2.0 I ended up getting this very annoying warning. WARNING: PWC4011: Unable to set request character encoding to UTF-8 from context /, because request parameters have already been read, or ServletRequest.getReader() has already been called

This seems to be very common with a very hard to find solution on google.
Finnally after a lot of search I found this link which had the solution.


Place the following in the glassfish-web.xml of the web application.

<parameter-encoding default-charset="UTF-8"/>

<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 

Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">

 <glassfish-web-app error-url="">
 <parameter-encoding default-charset="UTF-8"/>

...
</glassfish-web-app>