You said the problem was absolutely correct the previous configuration of oracle-ds.xml looks like this: | <datasources> | <local-tx-datasource> | <jndi-name>/cattleDB</jndi-name> | .... | and now i have modified it as the following | <datasources> | <local-tx-datasource> | <jndi-name>cattleDB</jndi-name> | .... | then run,everything is ok . thanks for your help !! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167587#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...