Good morning! I am running the source code samples of o'reilly book. In the exercises about Session Beans, javax.annotation.EJB is imported. I could not find it in any JBOSS' jars. I've used java.ejb.EJB instead. The EJB annotation can be found in jboss-ejb3x.jar. Apparently, it is an author's mistake. However, probably the same code should run in another application server. Has anyone had the same problem? Thanks!