How to route to error page on session timeout

[purna_cherukuri]

Hi,

I am using jboss-portal 4.2.0

In Jass authentication,
If the session expires, The user has been sent to login page. But as per my requirements, i have to route him to error page on session expiration. How can i do that? Where should i change the configurations to do this?

Thanks in advance...

[anil.saldhana]

I think you will need a combination of
http://www.java2s.com/Code/Java/Servlets/Servletsessionlistener.htm

and maybe a client side javascript.
http://forum.java.sun.com/thread.jspa?threadID=736720&messageID=4487506