anonymous wrote : 18:14:24,213 INFO [ServerInfo] Java version: 1.5.0_11,Sun Microsystems Inc. | 18:14:24,213 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_11-b03,Sun Microsystems Inc. The server logs looks fine to me. The server is definitely using Java5, just wanted to make sure about this. How do you compile your application? Do you use an IDE or Ant? From the place where you compile your application what's the output of the following: java -version View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4102948#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...