I noticed it's said that a fix (ASPATCH-317) for the JMX XMBean NotSerializationException issue in 4.0.5GA version was provided when using Java 1.5 to get some MBean attributes from JBoss App server, e.g., using twiddle utility. Does anyone know where to obtain the fix? I also tried 4.2.0 GA, 4.2.0 CR2 and 4.2.2 GA, none of them seems to resolve this problem. Did I miss anything? In the jmx-invoke-service.xml, there's an entry as follows: interceptor code="org.jboss.jmx.connector.invoker.SerializableInterceptor" policyClass="StripModelMBeanInfoPolicy" which I guess should do the trick. However, it doesn't. Anyone know why and how to resolve this issue? Thanks a lot in advance! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4138799#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...