private void addServerHealthUpdateListener(List<HealthCheckUpdateListener> updateListeners) {
        serverHealthCheckers.forEach(serverHealthChecker -> {
            serverHealthChecker.addListener(healthChecker -> {
                updateListeners.forEach(updateListener -> {
                    try {
                        updateListener.healthUpdated(healthChecker.isHealthy());
                    } catch (Throwable t) {
                        logger.warn("Unexpected exception from HealthCheckUpdateListener.healthUpdated():", t);
                    }
                });
            });
        });
    }
Returns a new builder which builds a new {@link GrpcHealthCheckService}.
grpc/src/main/java/com/linecorp/armeria/server/grpc/GrpcHealthCheckService.java