The class org.jboss.security.SimplePrincipal exists in the following JARs under my jboss home: client/jbossall-client.jar client/jbosssx-client.jar server/default/lib/jbosssx.jar Now, when I run only the server/default/lib/jbosssx.jar is being used. I even renamed the client directory to clientzzz and when jboss starts up i can rename the directory, etc so I know those 2 jars shouldn't be in the game when JBoss is up and running. But I still get a linkage error when I have: | grant principal org.jboss.security.SimplePrincipal "test" { | permission javax.security.auth.AuthPermission "testPerm"; | }; | In my policy file. Has anybody run across this? Or know exactly how you are supposed to assign permissions to specific users/groups? Thanks for any help View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4179102#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...