Expanded class hierarchy of UserMailRequiredValidator in Drupal 8
- class \Drupal\user\Plugin\Validation\Constraint\UserMailRequiredValidator extends \Symfony\Component\Validator\ConstraintValidator
- class \Drupal\administerusersbyrole\Constraint\OverrideUserMailRequiredValidator
- class \Drupal\administerusersbyrole\Constraint\OverrideUserMailRequiredValidator