anonymous wrote : Above example, could someone advises me why I have to add | Code: | | <use-java-context>false</use-java-context> | | to make this config works? The use-java-context setting determines where in the jndi tree the name appears. If this is true (the default), the the full name is "java:/jdbc/esoafds". If the value is false then the full name is "jdbc/esoafds". Only apps deployed into the application server can see names in the "java:" context, so if you are using a remote client to access a name, it cannot appear there. Thus you need use-java-context set to false. In you second example, the web.xml, in combination with the jboss-web.xml, is saying that any time the app requests the name "jdbc/esoafds" to actually look at "java:jdbc/esoafds". But your ap is a Spring app and you are telling it the wrong name - try "jdbc/esoafds" instead. Disclaimer: its been years since I used Spring and I don't know what funny things it does with JNDI names when looking things up, so you might have to play around with the names for a while. Also, you should use jNDIView to see what names you really have. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4258656#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...