Indeed, the Classloader seems to be changed in org.jboss.mx.server.AbstractMBeanInvoker: | 252:ClassLoader mbeanTCL = resourceEntry.getClassLoader(); | final ClassLoader ccl = TCLAction.UTIL.getContextClassLoader(); | boolean setCl = ccl != mbeanTCL && mbeanTCL != null; | if (setCl) | { | TCLAction.UTIL.setContextClassLoader(mbeanTCL); | } | I have to say that I use a JRMPProxyFactory to make the TreeCache accessible from JNDI. I'll change this to see if it makes a difference. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106689#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...