private void openSslStatGauge(
            OpenSslSessionStats stats,
            String sslContextId,
            String statName,
            ToDoubleFunction<OpenSslSessionStats> value) {
        Id id = spectatorRegistry.createId("server.ssl.stats", "id", sslContextId, "stat", statName);
        PolledMeter.using(spectatorRegistry).withId(id).monitorValue(stats, value);
        LOG.debug("Registered spectator gauge - {}", id.name());
    }
This function is meant to call the correct overload of {@code SslContextBuilder.forServer()}.  It should not
apply any other customization.
zuul-core/src/main/java/com/netflix/zuul/netty/ssl/BaseSslContextFactory.java