HBASE-12402 ZKPermissionWatcher race condition in refreshing the cache leaving stale ACLs and causing AccessDenied
HBASE-10780 HFilePrettyPrinter#processFile should return immediately if file does not exist (Ashish Singhi)
HBASE-12407: HConnectionKey doesn't contain CUSTOM_CONTROLLER_CONF_KEY in CONNECTION_PROPERTIES
HBASE-12414 Move HFileLink.exists() to base class