Publish/Subscribe, Request/Reply Messaging API for Java.
One hundred command line tools in a small and portable binary.
Serial <-> TCP/IP, Serial <-> UDP/IP, TCP/IP <-> UDP/IP
Lightweight fully extendable client/server application framework
Various TCP/IP servers, clients and network management tools
Highly configurable SNMPv1/v2c/v3 application-level proxy
A free high-performance alternative to TCP sockets
A simple loadbalancer written in java
Simple, flexible messaging with Redis.
ISeeWhatYouAreDoing - a tool for remote acces with very! low bandwith.
A Java Version of Magnie's Mesh Server for VPS