"clebert.suconic(a)jboss.com" wrote : I thought about something like that.. but we will need to create another sourceTree to have just those classes. | Well you would only need one class - and it could be a trivial class. anonymous wrote : | I thought also about defining a ClassLoader... send an ObjectMessage... read the ObjectMessage and assert: | | assertSame(TCL, objectRead.getClass().getClassLoader()); Yes that should work. Just need to make sure that the TCL and the "normal" classloader are different so you can distinguish them. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4028833#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...