*/
  private <T> @Nullable T instantiate(Invokable<?, ? extends T> factory)
      throws ParameterNotInstantiableException, InvocationTargetException, IllegalAccessException {
    return invoke(factory, getDummyArguments(factory));
  }

  /**
   * Returns an object responsible for performing sanity tests against the return values of all
   * public static methods declared by {@code cls}, excluding superclasses.
   */