Anno4j Parent
· Read and write API for W3C Web Annotation Data Model (http://www.w3.org/TR/annotation-model/) and W3C
Open Annotation Data Model (http://www.openannotation.org/spec/core/)
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 anno4j-parent-2.4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.