[jboss-user] [Management, JMX/JBoss] - Nullpointer at MBeanServer server = MBeanServerLocator.locat

I am trying to port a JEE application from JBoss 3.2.7 to JBoss 4.2.2.GA The application works on 3.2.7. On JBoss 4.2.2 I get a NullPointerException at the line MBeanServer server = MBeanServerLocator.locateJBoss(); which I don't understand, because I have used this mechanism repeatedly in my own projects on JBoss 4.2. The only difference I can think of is that the project I am trying to port is packaged in an ear archive. Does anybody have any ideas? Thanks, Hans View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4153979#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...