Scala

groovy의 창시자 중 한 명인 James Strachan이 쓴 글

Though my tip though for the long term replacement of javac is Scala. I'm very impressed with it! I can honestly say if someone had shown me the Programming in Scala book by by Martin Odersky, Lex Spoon & Bill Venners back in 2003 I'd probably have never created Groovy.

http://blog.blessedsoft.com/blog/entry/groovy_and_scala
http://groups.google.com/group/KGGUG/msg/beb49375ef086726