No events when using JRuby

I tested this again with the newly released JRuby 1.1.6, unfortunately the issue persists. I ran a test with MRI, did a reload on the Asterisk CLI and get events. I used JRuby in the same scenario and no events, the log is here:

http://gist.github.com/46528

Added a bit of debug code and have managed to at least capture at some point where this issue is happening. I added a begin/rescue clause to the manager_interface.rb here:

      def event_message_received(event)
        return if event.kind_of?(ManagerInterfaceResponse) && event["Message"] == "Authentication accepted"
        # TODO: convert the event name to a certain namespace.
        begin
          Events.trigger %w[asterisk manager_interface], event
        rescue => err
          ahn_log.event_error err
          abort
        end
      end

And, when an event is generated, I get this error in JRuby:

INFO event_error: Caught ArgumentError: wrong # of arguments(1 for 2)

/opt/adhearsion/lib/theatre/invocation.rb:35:in `initialize'
/opt/adhearsion/lib/theatre.rb:44:in `trigger'
/opt/adhearsion/lib/theatre.rb:40:in `map'
/opt/adhearsion/lib/theatre.rb:40:in `trigger'
/opt/adhearsion/lib/adhearsion/events_support.rb:43:in `trigger'
/opt/adhearsion/lib/adhearsion/voip/asterisk/manager_interface.rb:203:in `event_message_received'
/opt/adhearsion/lib/adhearsion/voip/asterisk/manager_interface/ami_lexer.rb:1739:in `message_received'

I run a test with the rescue clause in there on MRI and the error is not raised.

Okay, it appears to be somewhere within Theatre and specifically with the standard Monitor library. I added this begin/rescue clause to the theatre/invocation.rb:

  begin
    ahn_log.monitor_issue @returned_value_lock.inspect
    @returned_value_blocker = Monitor::ConditionVariable.new @returned_value_lock
  rescue => err
    ahn_log.monitor_issue err
    abort
  end

And, if I inspect the returning lock with MRI (when it works) I get this:

INFO monitor_issue: #<Monitor:0x18df6e8 @mon_entering_queue=[], @mon_count=0, @mon_owner=nil, @mon_waiting_queue=[]>

When I do the same with JRuby I get this:

INFO monitor_issue: #<Monitor:0x521927 @mon_waiting_cond=#<ConditionVariable:0xf15e7a>, @mon_total_waiting=0, @mon_entering_cond=#<ConditionVariable:0x71d99e>, @mon_count=0, @mon_mutex=#<Mutex:0x862be4>, @mon_owner=nil>

Obviously different, but not sure what the offending difference is yet.