lastResponseTime = System.currentTimeMillis();
if (response.getOp() == Protocol.HEARTBEAT_RESPONSE) {
/* Last response has been updated, keep going. */
HeartbeatResponse hbResponse =
(Protocol.HeartbeatResponse)response;
replicaCBVLSN.updateForReplica(hbResponse);
continue;
} else if (response.getOp() == Protocol.ACK) {