Found it ... it was quite easy. If anyone needs, I'll explain: The file to modify is standardjboss.xml under the conf folder. Find the lines like this: <interceptor call-by-value="false">org.jboss.invocation.InvokerInterceptor and change the class with some class made by you which extends the class above (I suppose this is not required, but it's the easiest way) Then you simply have to override the Invoke method ... and everything works. Bye View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4074097#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...