http://anonsvn.jboss.org/repos/jbossas/trunk/testsuite/src/main/org/jboss... You can see that I have added | fail("FIXME") | to some of the methods. Just remove one of them, maybe public void testMDBRunAs() throws Exception Then, start JBoss instance and in the testsuite module, run ant -Dtest=org.jboss.test.security.test.EJBSpecUnitTestCase one-test You should see some deadlock (server hang) on the server side or client side. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4093598#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...