protected void cascadeValidationToOne(
     Errors errors,
     BeanWrapper bean,
     Object associatedObject,
     GrailsDomainClassProperty persistentProperty,
     String propertyName) {
   List validatedInstancesList = (List) validatedInstances.get();
   validatedInstancesList.add(associatedObject);
   super.cascadeValidationToOne(errors, bean, associatedObject, persistentProperty, propertyName);
 }