Guard against NullPointerException
Update the membership change test.
Bugfix: Reject all candidates for membership when FailureDetectorImpl is not pinned.
Correct the spelling (it's the little things that matter the most).
Bugfix: AL must fall back to the leader if it can't find a candidate for recovery from it's membership.
Make PacketSorterTest compile after the AL recovery bugfix.
Allow for testing FailureDetector membership health without an assertion on unhealthy.
Expose recovery cycles and active vote participations in AL.
Test for adding a new member to a cluster.
Pull AL statistics into separate class.