Thanks, but it didnt resolve the problem..if i configure it to a BASIC auth method the same error comes..the problem is in the security-constraint, but i dont know what to do..de .war file has: WEB-INF/classes/ComputeServlet.class WEB-INF/lib/LoginServiceEJB-client.jar WEB-INF/web.xml WEB-INF/jboss-web.xml META-INF/MANIFEST.MF and the LoginServiceEJB-client.jar has: META-INF/MANIFEST.MF login/interfaces/DatabaseLoginHome.class login/interfaces/DatabaseLogin.class I wanted to make a simple Login guiding me from the Fibo example.. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983457#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...