RESThub Spring stack
· RESThub Spring stack is an designed to allow you to build web applications following KISS (Keep It Simple, Stupid), DRY (Don't Repeat Yourself) and REST principles.
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 resthub-spring-stack-2.2.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.