code: public static <T> DnsSrvWatcherBuilder<T> newBuilder(
        DnsSrvResolver resolver,
        Function<LookupResult, T> resultTransformer) {
  
      checkNotNull(resolver, "resolver");
      checkNotNull(resultTransformer, "resultTransformer");
  
      return new DnsSrvWatcherBuilder<T>(resolver, resultTransformer);
    }
docs: Creates a {@link DnsSrvWatcherBuilder} using the given {@link DnsSrvResolver}. The builder
  can be configured to have the desired behavior.
  
  <p>This watcher will use a function that transforms the {@link LookupResult}s into an
  arbitrary type that will be used throughout the {@link DnsSrvWatcher} api.
  
  <p>Exactly one of {@link DnsSrvWatcherBuilder#polling(long, TimeUnit)} or
  {@link DnsSrvWatcherBuilder#customTrigger(DnsSrvWatcherFactory)} must be used.
  
  @param resolver          The resolver to use for lookups
  @param resultTransformer The transformer function
  @return a builder for further configuring the watcher