groovy

http://groovy.codehaus.org/Running
http://www.codedata.com.tw/java/groovy-gradle-abc/

"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."

淺談 Groovy 與 Gradle from Justin Lin