Hi, i have experienced some issues with classloading in Jboss. Actually, here's how my ear is packaged: myapp.ear: ---->init.sar ---->mylib.jar In my sar package, i need to load a resource which is packaged in mylib.jar If i declare a loader repository the resource can not been seen. I added in the init.sar 's manifest.mf file a dependency on mylib.jar by declaring a class-path entry. I declared the java modules in the application.xml like this: <module> | <java>mylib.jar</java> | </module> and in my jboss-app.xml: <loader-repository> | com.myapp:loader=testapp | </loader-repository> | <module> | <service>init.sar</service> | </module> I even tried the different options: <loader-repository> | com.myapp:loader=testapp | <loader-repository-config> | java2ParentDelegation=false | </loader-repository-config> | </loader-repository> and with java2ParentDelegation setting to true. Even after reading the wiki and jboss documentation i am not sure to understand which classloaders are created for my ear and the strategy they use to load classes (parent delegation or not). For me, by declaring a loader-repository for my ear it only isolates classes and libraries of my ear from the other ear but the classloader is unified (flat). Is this correct ? How could i deal with this issue ? Thanks in advance, Luc View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071042#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...