A recent study by Java developer Raghu Kodali has shown that porting Sun’s Java EE tutorial application RosterApp from EJB 2.1 to EJB 3.0 resulted in more than a 50-percent reduction in code.

The Java Persistence Architecture, a part of the Enterprise JavaBeans 3.0 (EJB 3.0) specification, simplified the development of EJB applications using data persistence.