Whenever you write a remote client application (like a standalone java client) which accesses JBoss (ex: for using the EJBs deployed on JBoss), in the client classpath you usually place/refer to the jboss jars present in %JBOSS_HOME%\client folder. This warning message states that instead of using the jboss jars present in the %JBOSS_HOME%\client folder, you will have to use the ones from those listed folders. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4157598#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...