PHP 8.4 Deprecated implicit nullable params code

Problem/Motivation

Has deprecated PHP code

PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 117

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 117
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginBase::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginBase.php on line 28

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginBase::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginBase.php on line 28
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginBase::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginBase.php on line 28

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginBase::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginBase.php on line 28
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginInterface::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginInterface.php on line 44

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginInterface::settingsForm(): Implicitly marking parameter $entity as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginInterface.php on line 44
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginInterface::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginInterface.php on line 44

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPluginInterface::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPluginInterface.php on line 44
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageNotFound::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageNotFound.php on line 23

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageNotFound::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageNotFound.php on line 23
PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\AccessDenied::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/AccessDenied.php on line 23

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\AccessDenied::performAction(): Implicitly marking parameter $current_response as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/AccessDenied.php on line 23
PHP Deprecated: Drupal\ckeditor_templates\Form\CKEditorTemplatesDialogForm::buildForm(): Implicitly marking parameter $editor as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/ckeditor_templates/src/Form/CKEditorTemplatesDialogForm.php on line 76

PHP Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253

Deprecated: Drupal\rabbit_hole\Plugin\RabbitHoleBehaviorPlugin\PageRedirect::settingsForm(): Implicitly marking parameter $bundle_settings as nullable is deprecated, the explicit nullable type must be used instead in /app/docroot/modules/contrib/rabbit_hole/src/Plugin/RabbitHoleBehaviorPlugin/PageRedirect.php on line 253
[success] Cache rebuild complete.

Steps to reproduce

Install PHP 8.4.

Proposed resolution

Adjust code

Remaining tasks

Create patch/MR.