JRuby __jtrap

jruby-1.6.7

done
#<NoMethodError: undefined method `__jtrap' for #<Zab:0x153b2cb>>
#<NoMethodError: undefined method `__jtrap' for #<Zab:0x3c63e8c>>
#<NoMethodError: undefined method `__jtrap' for #<Zab:0x2e694f12>>
#<NoMethodError: undefined method `__jtrap' for #<Zab:0x26dfe303>>

jruby-1.7.0.preview1

done

jtrap.rb

class Zab
  def start
    trap(:INT) do
      puts 'a'
    end
  end
end

def test
  Thread.new do
    z = Zab.new
    begin
      z.start  
    rescue Exception => e
      p e
    end
  end
end

5.times { test }
puts 'done'

ruby-1.9.3-p194

done