JWhoisServer is a small, fast, and highly configurable RFC 3912 compliant whois server written in Java and using RDBMS as a storage engine. It supports INET lookups (IPv4 and IPv6) and IDN domain names handling).
JExecDaemon is a small TCP/IP daemon that is used to safely execute programs on remote servers and get the output that these programs write to standard out (stdout) and error out (stderr).
A game which looks like a Rubik's Cube, but is a slider, not a twister.
An accounting/ERP application and framework.