Jdptool is a debug and profiler tool which based on JPDA; It provide both swing based and browser based GUI. It has sophisticated debugger without user interfere. It also provide profiler to memory usage and threads with numerous new feature
S.LSoftware lots of useful small open source projects
This project has evolved into four main components: J2EE utilities; Austin, a Groovy Game Scripting Library for JME; Script formatter for screenwriters; and the core library utilities.
A Java 2 based implementation of the PHP MythWeb project with standalone reusable communication library for MythTV versions 0.17 and higher.
OKO Online Judge is a system to create online competitions on programming. OKO allows to check different language programms and has comfortable web-interface. See our wiki at http://xupypr.dyndns.dk (russian language)
Spirits of Runeyard is a new concept of online graphics role playing game. It's a game placed in a fantasy world between swords and magic, where every player can live a second life or simply enjoy to play a new type of gameplay.
ACM.EDU.PL is a web application designed for creating and management of multiple programming contests. Problem sets are similar to those encountered in IBM's ACM competitions. It is written basically in JSP+Spring+Hibernate and C++.
The Virtual Laboratory for Earth and Planetary Materials (VLab) collaborative GRID-based environment. Concentrating on scientific computation workflows and auto-generation of visualization services. http://vlab.msi.umn.edu