That should be : | <class>org.custom.jboss.CustomJDBCCacheLoader</class> | How does JBoss Cache locate the class? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078339#4078339 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4078339