JsTestDriver
· The goal of JsTestDriver is to build a JavaScript test runner which:
easily integrates with continuous builds systems and
allows running tests on multiple browsers quickly to ease TDD style development.
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 jstestdriver-1.3.3d.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.