private static <X extends Throwable> void throwFirst(List<X> exceptions) throws X {
    if (!exceptions.isEmpty()) {
      throw exceptions.get(0);
    }
  }

  /** Factories with the least number of parameters are listed first. */
  private static <T> ImmutableList<Invokable<?, ? extends T>> getFactories(TypeToken<T> type) {
    List<Invokable<?, ? extends T>> factories = Lists.newArrayList();

  private static <X extends Throwable> void throwFirst(List<X> exceptions) throws X {
    if (!exceptions.isEmpty()) {
      throw exceptions.get(0);
    }
  }

  /** Factories with the least number of parameters are listed first. */
  private static <T> ImmutableList<Invokable<?, ? extends T>> getFactories(TypeToken<T> type) {
    List<Invokable<?, ? extends T>> factories = Lists.newArrayList();