JFS is a simple, TCP/IP based network filesystem protocol. It allows applets running in a web browser to load and save files on a remote server, as well as send email and print documents through the JFS server. Because Java applets cannot access the filesystem of the machine they are running on, this provides a useful way for applets to store state information.
JFS is a property of JFS respective authors, vendors and developers. You can download JFS for your hardware. If you want to use JFS for other purpose, Please contact the authors, vendors and developers of JFS.