[jboss-user] [Beginners Corner] - dynamically load classes within app on JBOSS

Hello, I am using jboss 4.2.3.GA and am trying to load a class dynamically as shown in your example on : http://wiki.jboss.org/wiki/HowCanIDynamicallyLoadClassesWithinAnMBean this is a piece of my code : // Load the class : logger.debug("getting classLoader "); ClassLoader classLoader = Thread.currentThread().getContextClassLoader(); logger.debug("Loading class " + className); Class deployableApplicationClass = classLoader.loadClass(className); logger.debug("Instantiating Object"); Object deployableApplicationObject = deployableApplicationClass.newInstance(); // implemented interfaces logger.debug("listing interfaces: "); for (Class clt : deployableApplicationObject.getClass().getInterfaces()){ logger.debug("list interfaces deployableApplicationObject implements: " + clt.getName()); } logger.debug("casting"); app = (DeployableApplication)deployableApplicationObject; It always fails on the cast : app = (DeployableApplication)deployableApplicationObject; with a ClassCastException this is the server log : 2008-09-15 12:52:39,932 DEBUG [be.kmi_irm.labo.web.LoadAppsController] getting classLoader 2008-09-15 12:52:39,932 DEBUG [be.kmi_irm.labo.web.LoadAppsController] Loading class be.kmi_irm.labo.imaging.medriasclient.MedriasClient 2008-09-15 12:52:39,946 DEBUG [be.kmi_irm.labo.web.LoadAppsController] Instantiating Object 2008-09-15 12:52:39,979 DEBUG [be.kmi_irm.labo.web.LoadAppsController] listing interfaces: 2008-09-15 12:52:39,980 DEBUG [be.kmi_irm.labo.web.LoadAppsController] list interfaces deployableApplicationObject implements: be.kmi_irm.labo.web.app.DeployableApplication 2008-09-15 12:52:39,980 DEBUG [be.kmi_irm.labo.web.LoadAppsController] casting 2008-09-15 12:52:39,980 DEBUG [be.kmi_irm.labo.web.LoadAppsController] ClassCastException : be.kmi_irm.labo.imaging.medriasclient.MedriasClient cannot be cast to be.kmi_irm.labo.web.app.DeployableApplication 2008-09-15 12:52:39,981 ERROR [STDERR] java.lang.ClassCastException: be.kmi_irm.labo.imaging.medriasclient.MedriasClient cannot be cast to be.kmi_irm.labo.web.app.DeployableApplication While the loaded class implements the interface "DeployableApplication" Could you tell me what is going wrong. Kind regards, Alain View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4176510#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...