What’s the current state of closures in Java?

Question

Does anybody know, if closures will be in Java 7?

Answer 1

Groovy is the best Java alternative I've seen that includes features of dynamic languages including closures, run-time class extension, etc. While Ruby has a slight design advantage imho, I'd have to say the fact that Groovy compiles into Java byte-code and interacts with Java without ANY interface code is a huge plus that can't be ignored.

http://groovy.codehaus.org