Re:Java 7 is now available
by runevault on Thursday July 28, 2011 @12:55PM
(#2817703)
JRuby developer Charles Nutter claims that Java JDK7 gives a performance boost to JRuby, saying "On bench_threaded_reverse, Java 7 is 20% faster than Java 6, and JRuby plus invokedynamic is 20% faster than that".[1]
From http://en.wikipedia.org/wiki/JRuby with the [1] being
https://twitter.com/#!/headius/status/78282122997149696