Use .include? because i got a few weird errors: "org.jruby.exceptions.RaiseException: (InterruptedRegexpError) Regexp Interrrupted"
Fix bug where calling shutdown on datastore before querying data store from separate thread.
Move code to private.
Change the status message to "failed" when SIGTERM / SIGINT received.
Check that the inputs is actually less than number of participants (could be greater with timing issues or with a "dead" coin join with director no longer present).