As you say, BilanCongesServiceImpl does implement org.jboss.aop.Advised which means that your classes have been woven at compile-time. When you say your AOP version is 1.3, I hope this does not mean you have downgraded the AOP version in AS 4.0.5.GA? AS 4.0.5.GA ships with AOP 1.5.2.GA and should stay on that AOP version or higher. So, I guess what this means is that you are compiling the classes with AOP 1.3 and running with AOP 1.5.2.GA/AS 4.0.5.GA, which will not work as I have now stated a few times. Or maybe I am confused since you have two threads open on the same subject, and in one place you are stating that you have disabled the AOP builder while now you are saying that (surprise) compiling with the AOP builder weaves the classes, in which case I am not sure why you sent me the war. To be clear again, do NOT compile your classes with the AOP builder, and deploy them in JBoss with loadtime weaving enabled. Try the "injboss" tutorial example to satisfy yourself that it does actually work when you do not mix and match AOP versions. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050058#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...