gistfile1.txt

object Finder {
  def test(t: Option[Int]) { println(t.get) }
}

>> SpaceMule::PfO.Finder.test(Some(3))
3
=> nil
>> SpaceMule::PfO.Finder.test(None)
NameError: no method 'test' for arguments (org.jruby.RubyClass) on Java::SpacemuleModulesPathfinderObjects::Finder
  available overloads:
    (scala.Option)
    (scala.Option)
	from (irb):6:in `evaluate'
	from org/jruby/RubyKernel.java:1011:in `eval'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:158:in `eval_input'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:271:in `signal_status'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:155:in `eval_input'
	from org/jruby/RubyKernel.java:1343:in `loop'
	from org/jruby/RubyKernel.java:1115:in `catch'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:154:in `eval_input'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:71:in `start'
	from org/jruby/RubyKernel.java:1115:in `catch'
	from /home/arturas/.rvm/rubies/jruby-head/lib/ruby/1.8/irb.rb:70:in `start'
	from /home/arturas/.rvm/rubies/jruby-head/bin/jirb:17:in `(root)'
>> None
=> Java::Scala::None