Cress is a comprehensive toolset for graphical service/workflow design
CheckeredFlag is a super simple mail server.
open source web survey software social tool
reliable filetransfer for unreliable networks
An unofficial web console to administer Apache James 3 server
Client-server networking library
Java library for easy accessing Tor network.
Java VoIP/SIP PBX system (replaced by jfPBX)
Core library of Jaaz Portal
Atom/RSS/SearchSuggestion/OPML processing framework
A simple yet powerful open source VPN solution
a small command line file downloader
Easy file uploads & downloads through HTTP in Java