CDox is a Java program to create, edit and print CD-Documents, like booklets, cd front covers and back sides.
Yet Another Homemade Game Engine (yahge) is what the name says a free open source 3D Game Engine geared towards development of 3D First Person Shooters. Major goals are to provide a Rapid Prototyping System for Game Ideas or to make Game Demos for Resume
JMX Viewing utility for easily integrating JMX enabled applications into tools like nagios.
Straightforward Java persistence layer. Provides automatic object/relational mapping (ORM) of Java objects to database tables. You just write Java code (no XML or SQL involved) and pBeans takes care of the database layer. It uses annotations.