rackerlabs/repose — pull request #981 by dkowis (2014-06-23 20:27:40+00:00)
Title: Updated the method so that *all* accesses to the future cache...

are synchronized. I think this is a simple race condition, so I'd rather
lock on this guy, so that it doesn't accidentally return null where it
shouldn't. I think this will solve the occasional null pointer
exceptions.

I believe this will resolve REP-558