public static Header simple(String name, String agentId, String agentName, String applicationName,
                                int serviceType, long agentStartTime) {
        return new HeaderV1(name, agentId, agentName, applicationName,
                serviceType, agentStartTime,
                Header.SOCKET_ID_NOT_EXIST, Collections.emptyList(),
                DEFAULT_GRPC_BUILT_IN_RETRY, Collections.emptyMap());
    }
@author Woonduk Kang(emeroad)
@author jaehong.kim
grpc/src/main/java/com/navercorp/pinpoint/grpc/HeaderV1.java