Nagin Kothari [http://community.jboss.org/people/nagin.kothari] replied to the discussion "NPE in StateslessContainer at line 396" To view the discussion, visit: http://community.jboss.org/message/541030#541030 -------------------------------------------------------------- Intention to use AOP interceptor was not to get to caller principal.It is written for getting context data  passed by client which are generic and not specific to bean method call(e.g locel). And also to pass on response data to client back through *+invocation.setResponseContextInfo(responseMap);+* there i needed callerprincipal. In 4.3.2  , I  used get value for Beancontext as well as value for  invocation.getTargetObject(). but now both are null in case of 6.0M2 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/541030#541030] Start a new discussion in EJB 3.0 at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]