Never mind, it was easier than I thought. The servlet doesn't do anything until after the filters run, so all you have to do is pass in a modified ServletRequest to the next filter on the chain. The trickiest part is faking an HttpServletRequest with the modified String as the ServletInputStream. Thanks. -Shadow View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4269872#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...