Apache Any23
· Anything To Triples (any23) is a library, a web service and a command line tool that
extracts structured data in RDF format from a variety of Web documents.
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 apache-any23-2.7.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.