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<table class="wysiwyg-macro" data-macro-name="unmigrated-inline-wiki-markup" data-macro-parameters="atlassian-macro-output-type=BLOCK" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e3VubWlncmF0ZWQtaW5saW5lLXdpa2ktbWFya3VwOmF0bGFzc2lhbi1tYWNyby1vdXRwdXQtdHlwZT1CTE9DS30&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>{div:id=definition}
h3. 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*
* provides the ability to *statically type check* and *statically compile* your code for robustness and performance
* 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
{div}</pre></td></tr></table><h3>Experience Groovy 2.1</h3><table class="confluenceTable"><tbody><tr><td class="confluenceTd"><p><a class="confluence-link" href="/display/GROOVY/Download" data-linked-resource-id="2742" data-linked-resource-type="page" data-linked-resource-default-alias="Download" data-base-url="http://docs.codehaus.org"><img class="confluence-embedded-image" hspace="4" vspace="2" src="/download/attachments/230400772/download-icon.png?version=1&amp;modificationDate=1369083408304" data-image-src="/download/attachments/230400772/download-icon.png?version=1&amp;modificationDate=1369083408304" data-linked-resource-id="230565390" data-linked-resource-type="attachment" data-linked-resource-default-alias="download-icon.png" data-base-url="http://docs.codehaus.org" data-linked-resource-container-id="230400772" title="null > download-icon.png" data-element-title="download-icon.png [Download arrow picture]"></a></p></td><td class="confluenceTd"><p><strong>Groovy 2.1</strong> is the latest <strong>major</strong> and <strong>stable version</strong> of the popular alternative language for the JVM.</p><p>To learn more about the novelties, make sure to <strong>read the</strong> <strong><a class="confluence-link" href="/display/GROOVY/Groovy+2.1+release+notes" data-linked-resource-id="230396895" data-linked-resource-type="page" data-linked-resource-default-alias="Groovy 2.1 release notes" data-base-url="http://docs.codehaus.org">detailed release notes</a></strong>. In a nutshell, Groovy 2.1</p><ul style="text-align: justify;"><li style="margin-left: 20.0px;"><strong style="margin-left: 0.0px;">offers full support for the JDK 7 “invoke dynamic”</strong> bytecode instruction and API for improved performance,</li><li style="margin-left: 20.0px;">goes beyond conventional static type checking capabilities with a <strong style="margin-left: 0.0px;">special annotation to assist with documentation and type safety of Domain-Specific Languages</strong> and adds <strong style="margin-left: 0.0px;">static type checker extensions</strong>,</li><li style="margin-left: 20.0px;">provides <strong style="margin-left: 0.0px;">additional compilation customization</strong> options,</li><li style="margin-left: 20.0px;">features a <strong style="margin-left: 0.0px;">meta-annotation facility</strong> for combining annotations elegantly,</li><li style="margin-left: 20.0px;">and provides various other enhancements and minor improvements.</li></ul></td></tr></tbody></table><table class="wysiwyg-macro" data-macro-name="section" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e3NlY3Rpb259&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="RICH_TEXT"><tr><td class="wysiwyg-macro-body"><table class="wysiwyg-macro" data-macro-name="column" data-macro-parameters="width=15%" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e2NvbHVtbjp3aWR0aD0xNSV9&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="RICH_TEXT"><tr><td class="wysiwyg-macro-body"><p><br class="atl-forced-newline" /> &quot;Groovy is like a super version of Java. It can leverage Java's enterprise capabilities but also has cool productivity features like closures, builders and dynamic typing. If you are a developer, tester or script guru, you have to love Groovy.&quot;</p><p><img class="confluence-embedded-image" src="/download/attachments/230400772/groovydukemed.jpg?version=1&amp;modificationDate=1369083408318" data-image-src="/download/attachments/230400772/groovydukemed.jpg?version=1&amp;modificationDate=1369083408318" data-linked-resource-id="230565398" data-linked-resource-type="attachment" data-linked-resource-default-alias="groovydukemed.jpg" data-base-url="http://docs.codehaus.org" data-linked-resource-container-id="230400772" title="null > groovydukemed.jpg" data-element-title="groovydukemed.jpg"></p><table class="wysiwyg-macro" data-macro-name="panel" data-macro-parameters="bgColor=White|borderStyle=none" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e3BhbmVsOmJnQ29sb3I9V2hpdGV8Ym9yZGVyU3R5bGU9bm9uZX0&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="RICH_TEXT"><tr><td class="wysiwyg-macro-body"> </td></tr></table></td></tr></table><table class="wysiwyg-macro" data-macro-name="column" data-macro-parameters="width=85%" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e2NvbHVtbjp3aWR0aD04NSV9&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="RICH_TEXT"><tr><td class="wysiwyg-macro-body"><h2>Samples</h2><p>A simple hello world script:</p><table class="wysiwyg-macro" data-macro-name="noformat" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e25vZm9ybWF0fQ&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>def name='World'; println "Hello $name!"</pre></td></tr></table><p>A more sophisticated version using Object Orientation:</p><table class="wysiwyg-macro" data-macro-name="noformat" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e25vZm9ybWF0fQ&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>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!"</pre></td></tr></table><p>Leveraging existing Java libraries:</p><table class="wysiwyg-macro" data-macro-name="noformat" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e25vZm9ybWF0fQ&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>import static org.apache.commons.lang.WordUtils.*

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

new Greeter('world').salute()</pre></td></tr></table><p>On the command line:</p><table class="wysiwyg-macro" data-macro-name="noformat" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e25vZm9ybWF0fQ&amp;locale=en_GB&amp;version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>groovy -e "println 'Hello ' + args[0]" World
</pre></td></tr></table></td></tr></table></td></tr></table><h1>Latest news <a class="confluence-link" href="/display/GROOVY/News" data-linked-resource-id="1868" data-linked-resource-type="page" data-linked-resource-default-alias="News" data-base-url="http://docs.codehaus.org">[more]</a></h1><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2Jsb2ctcG9zdHM6MX0&amp;locale=en_GB&amp;version=2" data-macro-name="blog-posts" data-macro-default-parameter="1"></p>