I also cannot get @EJB injection to work, using JBoss.4.0.4.GA with whatever version of EJB3 that comes bundled with it. I have experimented with in a few ways such as, specifiing a @LocalBinding, @EJB(mappedname=) and so on, but i the injection always results in null :-(. The current setup i have is that i am trying to look up the EJB in an MBean packaged within the same .ear file, could deployment order (ie .sar before .jar) possibly be causing the problem ? i have verified that it is bound in two ways, InitialContext.lookup() works and in the JNDI view it is bound, Any help is appreciated. Andy View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976532#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...