Have you read http://wiki.jboss.org/wiki/Wiki.jsp?page=JDBCCacheLoader? What version of JBC are you using? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4112632#4112632 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4112632