TestXNG
· TestXNG is an XML testing framework, inspired by TestNG.
It can be used to test XML Schemas and XSL Transformations, allows tests to be organized in groups, and dependencies to be defined between tests and tests and groups.
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 root-0.7.99.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.