Do refinements work in JRuby?

jruby_refinements.rb

module Refinement
  refine Object do
    def new_method
      'new method!'
    end
  end
end

class Thing
  using Refinement

  def test
    puts Object.new.new_method
  end
end

Thing.new.test

output

NoMethodError: undefined method `new_method' for #<Object:0x7c8740de>
   test at test.rb:13
  <top> at test.rb:18