commit 4f4056b20d9c0da7c719317c4d253a415bec2265
author Dave Borowitz <dborowitz@google.com> Wed Apr 01 12:36:45 2015 -0700
committer David Pursehouse <david.pursehouse@sonymobile.com> Thu Apr 02 17:57:26 2015 +0000
tree b663c905b66142c94074b7f1428328f147a4571b
parent 3b489e65c560d9cd24dfc3a6cea6acbfaf6085cc

Fix NPE in MergeabilityCache.getIfPresent

LoadingCache.getIfPresent is explicitly @Nullable. Unfortunately, when
it returned null, it was being unboxed to a boolean, causing an NPE.

This bug has been around since the mergeability implementation was
rewritten, but has likely not been very common because mergeability
bits are computed pretty aggressively (if asynchronously).

Change-Id: Ie3d8e16db76b28056832c002ab0899072d0ea356
(cherry picked from commit 4193e33184ec966e0ad0e96358f1426fe508671a)