greetings, i'm having a big problem with my application, because it has to be changing classes in a dynamic way, for example, the server is up and running, and someone creates a new .java archive, so, the app. has to compile it, and add it to the classpath, making it available for other module to use it. I was trying using custom class loaders, but it doesn´t work because of the problems that usually arise when using different class loaders inside the AS (ClassCastException, LinkageException, etc.). Seen all this problems, i saw a posible solution in the UnifiedLoaderRepository, so my application can use the Repository that the server is actually using and load the classes it needs. the question is: this kind of thing can be made? how do i interact with the repository from a regular class, or and ejb3 session bean packaged in a regular .jar.? I`m trying using something like: MBeanServer server = MBeanServerLocator.locate(); try{ ObjectName objectName = new ObjectName("org.jboss.mx.loading:name=Default"); UnifiedLoaderRepository3MBean mbean = (UnifiedLoaderRepository3MBean)MBeanServerInvocationHandler.newProxyInstance( server, objectName, UnifiedLoaderRepository3MBean.class, false); System.out.println("obtaining class info: "+mbean.displayClassInfo("com.its.connection.ConnectionSetting")); }catch(Exception e){ e.printStackTrace(); } any help mould be appreciated. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972313#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...