HylaFAX Protocol for Java
· The GNU-HylaFAX package is a pure-Java implementation of the HylaFAX (FAX server) client protocol. The
GNU-HylaFAX package can be used to implement a HylaFAX client that will run on any Java-supporting system.
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 gnu-hylafax-1.0.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.