} catch (UnknownElementException e) {
      throw new AssertionError(e);
    }

    if (referenceException == null) {
      if (targetException != null) {
        throw new AssertionError("Target threw exception when reference did not", targetException);
      }

      /*
       * Reference iterator returned a value, so we should expect the
       * same value from the target
       */

    } catch (UnknownElementException e) {
      throw new AssertionError(e);
    }

    if (referenceException == null) {
      if (targetException != null) {
        throw new AssertionError("Target threw exception when reference did not", targetException);
      }

      /*
       * Reference iterator returned a value, so we should expect the
       * same value from the target
       */

   * @throws IllegalAccessException if the class isn't public or is nested inside a non-public
   *     class, preventing its methods from being accessible.
   * @throws InvocationTargetException if a static method threw exception.
   */
  private <T> @Nullable T instantiate(Invokable<?, ? extends T> factory)
      throws ParameterNotInstantiableException, InvocationTargetException, IllegalAccessException {

   * @throws IllegalAccessException if the class isn't public or is nested inside a non-public
   *     class, preventing its methods from being accessible.
   * @throws InvocationTargetException if a static method threw exception.
   */
  private <T> @Nullable T instantiate(Invokable<?, ? extends T> factory)
      throws ParameterNotInstantiableException, InvocationTargetException, IllegalAccessException {