tree b125812067d03f503ffb81f8284428919abcd967
parent 88372692a48afd51cf5e5785f7827f7ad62f752a
author Shawn Pearce <sop@google.com> 1430954165 -0700
committer David Pursehouse <david.pursehouse@sonymobile.com> 1439043893 +0000

Stop logging Unknown GroupMembership for UUID: null

Some chunk of code in Gerrit is frequently passing a null AccountGroup.UUID
into the membership checker. For most Java collections (which memberships
looks like), .contains(null) is just gracefully false. Honor that behavior
by gracefully skipping a null UUID.

Continue to log any UUIDs which have no registered backends. These may be
errors caused by plugins not loading that an admin should pay attention to
and try to resolve.

Change-Id: Id0a24db6ac57574315cb93c76ad0e0f180d67352
(cherry picked from commit 74861171bc7bdaedd8febc333d082455208c7bcd)