HostTracker retrieveCache() cache null check

retrieveCache() does:

inactiveStaticHosts = (ConcurrentMap<NodeConnector, HostNodeConnector>) this.clusterContainerService
.getCache("hostTrackerIH");
if (hostsDB == null)

{ logger.error("Cache couldn't be retrieved for HostTrackerIH"); }

when it should be checking for inactiveStaticHosts == null.