@SuppressWarnings({"rawtypes", "unchecked"})
      Supplier<List<V>> result = (Supplier) INSTANCE;
      return result;
    }

    @Override
    // We recommend against linkedListValues but need to keep it for compatibility.
    @SuppressWarnings("JdkObsolete")
    public List<?> get() {
      return new LinkedList<>();
    }
  }