Methodologies do not succeed because they are aligned with some platonic Right Way to build software. Methodologies succeed because people make them succeed.
JRuby didn’t support continuations last time I checked, how about Jython?
from: www.ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-talk/106044
Also check out: extensions.rubyforge.org/rdoc/index.html