Is there a pointer as to what feature(s) in JBoss AS 4.03 is required to support Portal 2.2? Using Portal 2.2 (+) under JBoss AS 4.02 leads to errors such as: ....... org.jboss.util.NestedRuntimeException: Error creating MBeanProxy: portal:mapper=PrefixDelegating; - nested throwable: (javax.management.InstanceNotFoundException: portal:mapper=PrefixDelegating is not registered.) at org.jboss.mx.util.MBeanProxyExt.(MBeanProxyExt.java:78) at org.jboss.mx.util.MBeanProxyExt.create(MBeanProxyExt.java:342) ...... Caused by: javax.management.InstanceNotFoundException: portal:mapper=PrefixDelegating is not registered. at org.jboss.mx.server.registry.BasicMBeanRegistry.get(BasicMBeanRegistry.java:509) at org.jboss.mx.server.MBeanServerImpl.getMBeanInfo(MBeanServerImpl.java:651) at org.jboss.mx.util.MBeanProxyExt.(MBeanProxyExt.java:70) ...... I'm stuck at 4.02 for a while, so checking out Portal 2.0 (which does run). But, I would like to understand the constraints, so pointers as to where to begin studying will be appreciated. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959236#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...