Thanks for your reply. I have no access to the HttpSession. This is transparent for the WebServices. I think I have to write a @WebMethod logout() in my WebService which then calls the LoginContext.logout(). How to access the LoginContext in a WebService? Is there a way to do this in a general way (this is much preferred :)), or do I have to use JBoss specific functionality (e.g. JBoss classes, annotations, ...)? Regards, Markus View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124729#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...