Groovy is an agile dynamic language for the Java Platform with many features that inspired languages like Python, Ruby and Smalltalk, making them available to Java developers using a Java-like syntax.

The Grails project.

The Grails plugins project is a SVN repo and JIRA setup to support the development of plugins for the Grails project (http://grails.org)

A system that uses Groovy as the scripting language of Ant tasks, replacing the use of XML for specifying behaviour. It can be thought of as Ant without the XML and very Groovy. Target sets allow it to look a bit like Maven.

Gradle is a build system written in Groovy. It uses Groovy also as the language for its build scripts. It has powerful multi-project build support. It has a layer on top of Ivy that provides a build-by-convention integration for Ivy. It gives you always the choice between the flexibility of Ant and the convenience of a build-by-convention behavior.

Griffon is a Grails inspired framework for Swing projects. In addition to the Griffon framework, the project will lilkely become the official home for Groovy GUI modules such as SwingXBuilder, JIDEBuilder, GraphicsBuilder, and new modules such as FXBuilder (JavaFX), FlamingoBuilder (Substance and Flamingo), etc.

Gldapo is an LDAP library for Groovy that brings the expressiveness of the Groovy language to LDAP programming.

Grails Plugin that deals Flex code generation by scaffolding metodology, including support for presentation and service layers

JTStand is a free scripting environment for data collection, an open source software, written in Java, scripted by Groovy. Latest project information is at: http://jtstand.codehaus.org/ Maturity: the first release you can expect as soon as all code and doc is moved to the Haus. Users? It is not even at RC1. Sources: svn checkout http://jtstand.googlecode.com/svn/trunk/jtstand About the competition: What competition? Please inform developers of any open source projects which has similar goals. Why Codehaus? some JTStand dependencies are here, beside other respected projects. Expecting a few good programmers joining, based on some publicity from Codehaus and a stable infrastructure.

Gruple provides an in-process tuplespace abstraction to enable a JavaSpaces-style programming model for communication and coordination among threads. A remote implementation allowing coordination among processes is planned for a future release.