*/
  public void testMethodParameter(
      @Nullable final Object instance, final Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**
   * Verifies that {@code ctor} produces a {@link NullPointerException} or {@link

   */
  public void testMethodParameter(@Nullable Object instance, Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**
   * Verifies that {@code ctor} produces a {@link NullPointerException} or {@link