DAO Fusion
· DAO Fusion is a lightweight yet comprehensive and extensible Java based Data Access Object (DAO) pattern implementation built on top of Java Persistence API (JPA) and Hibernate.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window daofusion-parent-1.2.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.