Redora
· Redora is a framework that helps you to create rich client web applications.
Redora will perform code generation for the persistence, JSON and GWT code.
See http://www.redora.net and http://redora.googlecode.com/ for more information.
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 redora-1.9.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.