Hades is a utility library to work with Data Access Objects implemented with Spring and JPA. The main goal is to ease the development and operation of a data access layer in applications.
The big feature of Hades 1.5 is that your entities do not have to implement the Persistable interface anymore. So, your classes won’t be dependent on a special library anymore.
Hades 2.0 RC1 brings full JPA 2.0 compatibility.