Fully async, multithreaded, predictive, open source, 3.01 reach
Open source enterprise search server for websites, files, and data
Arianne is an engine to develop multiplayer online games like Stendhal
Full featured MUD server with all the trimmings.
Document Management System and Content Management System
Mech Station Beta - Tower Defense like Game
a set of foundation classes for database engines
Cerberus Content Management System
A game engine for console based text games
Applications for data management
An Android library that provides views using openGL canvas
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
SJCE - free portable cross-platform graphical chess game, 100% Java.
Build Cross-platform Applications
An open source search engine with RESTFul API and crawlers
RPG character generator for RPG d20 systems.
Rapid Application Development Framework for PHP
Simple Text-Based Adventure Game
Classic text-based treasure hunt
Extensive Java chess database libraries.