JavaScript Code Model Project
· JavaScript Code Model Project provides a Java API for programmatic creation and manipulation of JavaScript source code.
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 js-codemodel-project-1.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.