@Override
    public void update(Long id) {
        Objects.requireNonNull(id, "id");

        final PingSession pingSession = pingSessionRegistry.get(id);
        if (pingSession == null) {
            logger.info("Skip update event handle of ping, not found ping session. transportMetadata={}", id);
            return;
        }
        update(pingSession);
    }
@author Woonduk Kang(emeroad)
@author jaehong.kim
collector/src/main/java/com/navercorp/pinpoint/collector/grpc/lifecycle/DefaultPingEventHandler.java