JRuby 1.1.2 is going to be released (probably) today and it fixes a bug with
$~ constants (
Regexp.last_match), which made autotest finally work!
jruby -S gem install ZenTest
jruby -S autotest
I’ve previously submitted a patch to ZenTest guys. It makes the use of autotest possible with any JRuby 1.x, but now, with JRuby 1.1.2, autotest should just work out of the box!