if (entries.isEmpty() && upUntil > lastSeen) {
lastSeen = upUntil-1;
}
// One more thing: is cluster info requested?
ClusterStatusMessage clusterStatus;
long currentHash = _cluster.getHashOverState();
clusterStatus = (clusterHash == 0L || clusterHash != currentHash) ?
_cluster.asMessage() : null;
final SyncListResponse<E> resp = new SyncListResponse<E>(entries, timestamp.get(),