Thanks for your suggestions :) I put filters in folder in web.xml of portal-server.war , and modified jar classpath adding the path of not found class (which is always the same), but nothing changed.. What do you mean in the last paragraph of your message ? Is it necessary to edit filter library code in order to integrate it in jboss portal? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029693#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...