Java Platform, Enterprise Edition is a widely used platform for enterprise server programming in the Java programming language. This book covers exciting recipes on securing, tuning, and extending Enterprise Applications using a Java EE 6 implementation. The book starts with the essential changes in Java EE 6. Then we will dive into the implementation of some of the new features of the JPA specification, and look at implementing auditing for relational data stores. There are several additional sections that describe some of the subtle issues encountered, tips, and extension points for starting your own JPA application, or extending an.