Questions: 1) Where is the class that calls cache.registerClassLoader() located? 2) Are you setting up a scoped loader repository in jboss-app.xml? 3) In jbossweb-tomcat55.sar/META-INF/jboss-service.xml, what are the values for "Java2ClassLoadingCompliance" and "UseJBossWebLoader"? 4) You say that after you set up marshalling "Now the cache is not getting replicated." Please be more specific -- what is happening? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983139#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...