"ad-rocha" wrote : I found some tips here: http://java.dzone.com/articles/jboss-microcontainer-classloading, but I still don't know how to use jboss-classloading.xml in RAR files... | Just place the jboss-classloading.xml inside the RAR/META-INF and see if the corresponding classloading domain as defined in the jboss-classloading.xml gets created. Also the RAR deployment details via the jmx-console should point to the domain name as specified in the jboss-classloading.xml. PS: I have not tried all this, let me know if you don't get things working I will give it a try. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4266010#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...