EnableTransformer uses the hook into the JBoss UnifiedClassLoaders with no work. To use EnableLoadtimeWeaving you need to set up a special classloader as show in section 10.3 of the reference manual. EnableTransformer looks easier, but it does not work for web apps (since they use a different classloader), and also does not work for deployments with scoped classloaders. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3974170#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...