title: Is JBoss 7.1.1 fully compatible with EJB 2.1?
body: <p>I work on an inherited project, old enough to use EJB 2.1 and JBoss 4 (some version). We now want to move on to JBoss 7.1.1 but perserve the EJB 2.1 implementations (there would be too many changes to make). Is JBoss 7.1.1 compatible with EJB 2.1 ? </p>