Great Simplification With EJB [ Screencast ] 📎
Esoteric and home grown transaction handling, as well as, manual JPA management can be replaced with a single @Stateless annotation:
In Java EE 7 you could replace a @Stateless with the ubiquitous @Transactional annotation. However, you will have to type 4 more characters for this purpose :-)
See also other screencasts at http://www.youtube.com/user/bienadam