I am trying to replicate this with my tests, although the case that I am trying to do is probably not something that will happen in the real world (i.e. in AS)? I am basically creating a URLClassLoader, and then registering a policy containing a scoped child domain as its child. I then cannot get hold of the parent URLClassLoader as mentioned. In AS I also don't see any way to get hold of the parent classloader from the deployment units, although in AS I belive the following to be true. *The default domain is fixed up to use the loader of BaseClassLoaderDomain as its parent, which in AS means the NoAnnotationURLClassLoader. *Other domains will always be children of either the default domain or an intermediate domain. So my test is probably a bit too ambitious? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4195022#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...