Groovy...

• is an agile and dynamic language for the Java Virtual Machine
• builds upon the strengths of Java but has additional power features inspired by languages like Python, Ruby and Smalltalk
• makes modern programming features available to Java developers with almost-zero learning curve
• supports Domain-Specific Languages and other compact syntax so your code becomes easy to read and maintain
• makes writing shell and build scripts easy with its powerful processing primitives, OO abilities and an Ant DSL
• increases developer productivity by reducing scaffolding code when developing web, GUI, database or console applications
• simplifies testing by supporting unit testing and mocking out-of-the-box
• seamlessly integrates with all existing Java classes and libraries
• compiles straight to Java bytecode so you can use it anywhere you can use Java

Experience the latest Groovy 1.7

Groovy 1.7, the latest major and stable version of the popular dynamic language for the JVM, has been released. To learn more about the novelties, make sure to read the release notes. In a nutshell, Groovy 1.7 provides support for Anonymous Inner Classes and Nested Classes, annotations, SQL, Groovy console and Grape enhancements, the nicer Power Assert assertion, an AST Viewer and an AST Builder, a fully rewritten GroovyScriptEngine, and much more!

Dedicated conference: SpringOne2GX 2010

SpringSource in conjunction with the No Fluff Just Stuff Symposium Series are pleased to present SpringOne 2GX, the premier Java event of 2010. SpringOne 2GX is a collocated event covering the entire Spring ecosystem and Groovy/ Grails technologies.

SpringOne 2GX is a one-of-a-kind conference for application developers, solution architects, web operations and IT teams who develop, deploy and manage business applications. This is the most important Java event of 2010, especially for anyone using Spring technologies, Groovy & Grails, or Tomcat. Whether you're building and running mission-critical business applications or designing the next killer cloud application, SpringOne 2GX will keep you up to date with the latest enterprise technology.

Featuring over eighty presentations delivered by development leads and published authors on the Spring, Groovy/ Grails, Tomcat and Cloud technology today, it's the ideal place to obtain critical skills to help you build, run and manage tomorrow's software solutions. Plus you'll meet and learn from open source leaders who drive innovation for these technologies.

This year's event will be held at the newly restored JW Marriott Chicago. Soaring among skyscrapers in the heart of one of the world's most powerful financial districts, the luxurious JW Marriott Chicago was originally designed by renowned architect Daniel Burnham, an urban planner who created the modern city plan for Chicago.

Groovy, an award-winning creative and innovative project

  JAX is the most important Java conference in Germany. Every year, the organizers are running a contest to select the most innovative and creative projects. From over 40 proposals, the jury selected only ten nominees. Although great projects were selected, like the Matisse GUI builder in NetBeans, or the Nuxeo Enterprise Content Management solution, Groovy won the first prize! It is a great honor and a huge pleasure for us to receive such a prize, especially knowing the cool projects we were competing with, or the past winners like the Spring framework.

Dierk König, author of the best-selling " Groovy in Action" book, received the prize in the name of the Groovy community, after having presented several sessions on Groovy at this conference. This award proves and reaffirms how innovative, creative and influential the Groovy project is for the Java community.

def name='World'; println 
"Hello $name!"
          

class Greet {
  def name
  Greet(who) { name = who[0].toUpperCase() +
                      who[1..-1] }
  def salute() { println 
"Hello $name!" }
}

g = 
new Greet('world')  
// create object
g.salute()              
// Output 
"Hello World!"
          

import 
static
org.apache.commons.lang.WordUtils.*

class Greeter 
extends Greet {
  Greeter(who) { name = capitalize(who) }
}

new Greeter('world').salute()
          

groovy -e 
"println 'Hello ' + args[0]" World
          

Latest news

If you wish to stay up-to-date with our vibrant community, you can learn more about:

• the latest posts from our mailing-lists
• the latest commits to our SVN trunk
• the buzz around Groovy in the blogosphere

And below, you will find the latest announcements:

Jay John posted on Aug 11, 2010

InvalidPropertyException for domain class integration

Hi all, I am fairly new to groovy and I am trying my hands at developing a web tool.

I need help fixing this error

2010-08-11 15:37:17,484 [main] ERROR context.GrailsContextLoader  - Error executing bootstraps: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.codehaus.groovy.grails.exceptions.InvalidPropertyException: No property found for name [Message] for class [class Profiler.User]

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.codehaus.groovy.grails.exceptions.InvalidPropertyException: No property found for name [question] for class [class Profiler.Message]

        at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:164)

       

The two classes are Message and User with a one to many relationship between them

I have carried out tests on the classes and the unit testing is successful for each class but the integration test fails.

Thanks in advance

Joachim Baumann posted on Jul 25, 2010

Windows-Installer for Groovy 1.7.4 released

The Windows-Installer for Groovy 1.7.4 can now be downloaded from the Groovy Website ( direct link). It takes care of the gory details of a Windows installation, copying files, setting environment variables and file associations.

It contains the Groovy 1.7.4 Binaries, API Docs and a PDF snapshot of the Wiki, the native launcher, easyb 0.9.7, Gaelyk 0.4, Gant 1.9.3, GMock 0.8.0, GPars 0.10, Griffon Builders (0.3.0 compatible), GroovyServ 0.3, Scriptom 1.6.0, Spock 0.4. The installation of everything but the binaries including the native launcher is optional.

Currently supported languages for the installer are english, german, spanish, french and brazilian portuguese.