private void addServerHealthUpdateListener(ImmutableList<HealthCheckUpdateListener> updateListeners) {
        serverHealth.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 HealthCheckService}.
core/src/main/java/com/linecorp/armeria/server/healthcheck/HealthCheckService.java