I figured it out! Turns out that I was missing a jar on the class path. Possibly this is described somewhere, but what I did was comparing the jars I had included with the ones that are found in the deployer for JBoss AS. The jars needed are: jboss-aop-jdk50.jar concurrent.jar javassist.jar jboss-common.jar trove.jar The tricky thing is that there is no error message if trove.jar is missing but the interceptor is merely not run. I'm happy again...:-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4089603#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...