IntelliJ IDEA has the full-blown support for Enterprise Java Beans (EJB). Supporting EJB specifications from 1.x to 3.0 and leveraging it through all of its productivity-boosting features, from coding assistance to refactoring, IntelliJ IDEA stands for the weapon of choice for developing EJB applications.Today we're going to see how easy it is to migrate from earlier EJB versions to the latest 3.0. For the purposes of this demonstration we have a sample project, containing a 2.1 CMP Entity Bean and a Session Bean used to access CMP bean fields.To migrate these beans to EJB 3.0: Switch Project