if we could design us away from the usage of javassist.bytecode.ClassFile and perhaps include that into MutableClassInfo we would get away with only using the MCI object in aop. from what i can see now there is only one place where we use ClassFile for something else than getting annotation metadata and that is in org.jboss.aop.standalone.Compiler where its used to find classname from a byte[]. this can be done with CtClass too, but i guess that doing it with ClassFile is more efficient...? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4201721#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...