SpongePowered/SpongeAPI — pull request #310 by PieGuy128 (2014-12-21 04:36:12+00:00)
Title: Take advantage of Guava's ListenableFuture

- Add "runTask..." methods to AsynchronousScheduler that accept Callable as task parameter

- Make use of ListenableFuture to simplify retrieval of task computation results.