tree 24586880e0df99332c8c2b21798aa04095f37ab5
parent 709a17930df16e89654110a68666a8c49d947f3b
author Ray Milkey <ray@onlab.us> 1467830959 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1467849750 +0000

Fix NPE if synchronizer thread runs while the provider is shutting down.

Change-Id: I3024c4ff0315f60da1e3023449ac18080aa6e315