JGR (speak 'Jaguar') is a universal and unified Graphical User Interface for R (it actually abbreviates Java Gui for R). JGR was introduced at the useR! meeting in 2004 and there is an introductory article in the Statistical Computing and Graphics Newsletter Vol 16 nr 2 p9-12...

Lucis provides a framework for building checkpoint-based index services on top of Lucene.http://lucis.sourceforge.net

ConcourseConnect is the de facto Open Source Java Social Networking Platform.

Build social networking sites including corporate intranets, business community add-on sites, enthusiast sites, business or product directory sites (like a chamber of commerce or yellow pages) or even standalone web sites....

An Eclipse plugin providing content assist and validation for Concordion Specs in Eclipse.

Java distributed framework is an framework for distributed grid / volunteer computing.

It's divided into a server and client library. The client library supports detection of computer state (idling), currently for Windows, Linux and MacOS.

It also provides secure socket communication, unique ids, user stats and much more....

Firemox is a full Java program which allows players to play various card games against an opponent over a network, such as a LAN and the Internet, or alone. The program is the judge: it implements and enforces the rules, so that the players do not need to resolve them themselves. The game currently runs Magic: The Gathering but rules can be written for any classic card game (eg. Poker) or collectible card game (CCG). The main feature of this program is that it can parse the rules of a game which are defined in an (human readable) XML file. MP parses these rules files to determine turn structure, card types, colors, etc.. making it impossible for players to cheat. Also, if a player forgets to do something during the game, he/she will be reminded since all rules are managed by Firemox....

Maven incremental build plugin enables maven2 to realize incremental builds on multi-modules projects. With this plugin declared in the parent pom, the modules with modifications and their dependencies will be clean before any action like compile or package....

A JUnit extension that helps you to reuse fixtures and to pinpoint failures. Extends JUnit with depedencies between tests.

Social Network plugin for Freenet. It is modelled after Facebook, allowing people to maintain a short profile, create posts and reply to posts of other people.

Create Web Services with PHP5 in minutes. InstantSVC (pronounced as Instant Services) provides a set of tools to ease your development. You just need to document your object oriented PHP code with PHPDocumentor in order to generate Web Services from it - SOAP Services as well as RESTful Web Services....