Hi all, sorry by my bad english, but I need your help I have one WEB App and one EJB App. I'm using JAAS and SSO Valve of Tomcat. How I can send user information in EJB call? The SecurityAssociation work with ThreadLocal. Where I set Principal and Credential information in SecurityAssociation? if I set in my LoginModule, the informations of last user logged will be returned, it work like Singleton Pattern because LoginModule use a same Thread. Thank's View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4038988#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...