Hello, We use Tomcat Valve to set UserPrincipal in request according to session state in our Single Sing On system. In the request object I have information about the user. There is a JIRA issue about Seam and Tomcat Valve, but I know it has low priority and won't be done soon. Have you got any ideas how to make use of userPrincipal from request in seam 1.2.1 GA? Did someone done anything similar? thanks Mateusz View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4056423#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...