The ever-popular Spring Framework (http : //www. springframework.org) was one of the first frameworks to pioneer simplified development in the Java space. Promoting the use of Plain Old Java Objects (POJOs), rather than objects tied to specific Java APIs such as EJB and JMS, Spring shot to prominence and is now integrated into pretty much every popular Java open source framework. However, it’s not just the open source software advocates who have been quick to integrate Spring; major software vendors such as BEA (now part of Oracle) have chosen to base their software on the Spring Framework.