square/retrofit — pull request #604 by jacobtabak (2014-09-16 20:44:17+00:00)
Title: Adds @Nullable and @NotNull (from org.jetbrains.annotations)

Adds dependency on org.jetbrains.annotations and adds @Nullable and @NotNull annotations to a few developer-facing classes.

I'm skeptical that you'd want to merge this for a number of reasons, but just wanted to start the discussion.