Hi, we are running into the same problem after trying to deploy a MDB on JBoss 4.2.2 GA. Its working fine on JBoss 4.2.1 GA. java.lang.NullPointerException | at org.jboss.metadata.BeanMetaData.getInvokerBindings(BeanMetaData.java:263) If the MDB is commented then the application doploys successfully including other SSB. If anyone has any hint to this issue please reply. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4118072#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...