Open Source Java Software

OpenMRS is a community-developed, open source, enterprise electronic medical record system. Our mission is to improve health care delivery in resource-constrained environments by coordinating a global community to creates and support this software.

JLink lets users author flow charts based on ISO 5807 and IBM standards. Developers can use JLink to add flowcharts to applications, serve a flow chart over the web in PDF or PNG, or dynamically create a flowchart with Javascript, Python or Ruby scripts

Camouflage is a full featured open source BRM/BPM/CMS stack using industrial strength open source products. This project is based on JBoss 7, Camunda BPM Engine, Liferay Portal Server and Drools.

This project is a result of my tries to port Liferay portal Community Edition to Virgo. I have done this work in the research purpose to analyze an ability of development a serious mass enterprise system on very perspective and great Virgo platform couple with the most powerful open source portal Liferay. My theoretical research has pointed these two product like the most perspective flexible and multi functional solutions matching my aims very well. But practically Virgo has turned out inapplicable for my tasks for a lot of different reasons (low performance, inconvenient migration process, poor environment, not enough functionality of tools, low robust, poor documentation and etc.) If someone want to know in details I can formalize everything on the forum by a request. I have published this project with hope that it might save efforts, time and money from waste for someone. See the file repository and the readme files. Additional documents will be soon on wiki

The asyncobjects framework is intendend for implementing event-driven network applications. It provides higher level API if compared with Java NIO. Initial code is based asyncobjects prototype from sebyla.sf.net project.

IFCX : Internet Foundation Classes eXtreme!

Jaiwls is a component oriented framework with bundled Servlet-Webserver (Jetty) and HTML Widget library. You can use static compiled java-classes or runtime Groovy-scripts.

ScriptBot is a scriptable IRC bot. Based on PircBot and BSF, it allows to fully customize the bot's behaviour by editing script files in the scripting language of your choice.

From the creator of MKGI Chess Club comes this next generation chess club. Completely re-written from scratch on the latest software frameworks, it features: social networks connection, scalable data storage, stunning graphics and much more to come. This project has two parts: - A Java Chess library containing board models, rules and PGN format management - A complete Chess web application based on the core Java library

CoW is a "Controllable Wiki" and basic CMS that supports collaborative document creation with asynchonous off-line editing. CoW makes it easy to add interaction to static websites, and to support concurrent editing and off-line working using Subversion

CodaServer is a database that makes building business applications easy. It uses a SQL-like language that lets you describe your workflow and business processes, and uses this information to enforce your business rules and guarantee data integrity.

Combean is a Java framework for mathematical structures and optimization algorithms. Through a set of Java interfaces and JavaBeans-based config, Combean glues optimization codes together - leading to more interoperable, adaptable and flexible solutions.

An Expert Search System for Enterprise Search based on the Information Retrieval Vector Space Model. Our model builds a weighted profile for each candidate and keeps all the documents, thus allowing to retrieve both people and documents together.

ExtremeTalk(XT)是一个用于企业或者组织内部进行在线通讯的，基于XMPP(Jabber)协议的即时通讯系统。ExtremeTalk(XT) is an Instant Messaging(IM) collaboration platform based on XMPP(Jabber) for enterprises and organizations

FGen is a framework for Flex application. This Framework provides code generation by DSL. This framework aims labor saving and liberation from tedious coding and testing.

Language-specific utilities for working with ancient Greek texts, developed for the "First Thousand Years of Greek" project at Harvard's Center for Hellenic Studies.

a Domain specific language to design tests for Java codes

The Grails plugin allows you to dynamically add and remove new DataSources to a running Grails environment. Within the code you can easily switch between registered DataSources by calling the dynamic method 'withDataSource(String id, Closure block)

Support for writing domain-driven applications in Groovy, running on the Naked Objects framework.

Grules is a rule engine for data preprocessing. The rules are specified via internal Groovy DSL, which has a concise and simple syntax.

Helen is an adventure game engine written in Java 6, designed to support multiple users. Where Helen attempts to be unique is enabling users with powerful extensibility without a grammar-heavy language (thanks to Groovy).

IRSA is a toolkit for Information Retrieval Service Assessment. It builds upon the Grails Web Framework and is developed at GESIS. It implements two main functionalities: (1) A number of showcases that show the implemented services like a so-called Search Term Recommender and different science-model based ranking mechanisms and (2) an IR assessment module that let's one do an interactive evaluation of the retrieval services. All implemented services are available via well-documented RESTful API. This toolkit is distributed under an Apache License 2.0.

It is a virtual information market system, designed to predict future events as virtual stocks by aggregating heterogeneous information via a CDA market mechanism.

JmsGate is a Simple REST-Service for accessing JMS destinations. You can send messages or listen to topics and queues via url calls.

A browser game framework implemented with Grails. The goal of Little Goblin is to create a game engine that allows you to "just add content" and you will be able to host a game that is only limited by your creativity.