26 files declare their use of NotFoundHttpException

BanDelete.php in drupal/core/modules/ban/lib/Drupal/ban/Form/BanDelete.php
Contains \Drupal\ban\Form\BanDelete.
book.pages.inc in drupal/core/modules/book/book.pages.inc
User page callbacks for the book module.
comment.admin.inc in drupal/core/modules/comment/comment.admin.inc
Admin page callbacks for the Comment module.
comment.module in drupal/core/modules/comment/comment.module
Enables users to comment on published content.
contact.pages.inc in drupal/core/modules/contact/contact.pages.inc
Page callbacks for the Contact module.
DBLogResource.php in drupal/core/modules/rest/lib/Drupal/rest/Plugin/rest/resource/DBLogResource.php
Definition of Drupal\rest\Plugin\rest\resource\DBLogResource.
EditController.php in drupal/core/modules/edit/lib/Drupal/edit/EditController.php
Contains of \Drupal\edit\EditController.
EditEntityFieldAccessCheck.php in drupal/core/modules/edit/lib/Drupal/edit/Access/EditEntityFieldAccessCheck.php
Contains \Drupal\edit\Access\EditEntityFieldAccessCheck.
EntityResource.php in drupal/core/modules/rest/lib/Drupal/rest/Plugin/rest/resource/EntityResource.php
Definition of Drupal\rest\Plugin\rest\resource\EntityResource.
ExceptionHandlerTest.php in drupal/core/vendor/symfony/debug/Symfony/Component/Debug/Tests/ExceptionHandlerTest.php
Feed.php in drupal/core/modules/views/lib/Drupal/views/Plugin/views/display/Feed.php
Contains \Drupal\views\Plugin\views\display\Feed.
file.inc in drupal/core/includes/file.inc
API for handling file uploads and server file management.
FlattenExceptionTest.php in drupal/core/vendor/symfony/debug/Symfony/Component/Debug/Tests/Exception/FlattenExceptionTest.php
HttpKernel.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpKernel.php
language.admin.inc in drupal/core/modules/language/language.admin.inc
Administration functions for language.module.
locale.pages.inc in drupal/core/modules/locale/locale.pages.inc
Interface translation summary, editing and deletion user interfaces.
menu.inc in drupal/core/includes/menu.inc
API for the Drupal menu system.
Page.php in drupal/core/modules/views/lib/Drupal/views/Plugin/views/display/Page.php
Contains \Drupal\views\Plugin\views\display\Page.
ParamConverterManager.php in drupal/core/lib/Drupal/Core/ParamConverter/ParamConverterManager.php
Contains Drupal\Core\ParamConverter\ParamConverterManager.
PathPluginBase.php in drupal/core/modules/views/lib/Drupal/views/Plugin/views/display/PathPluginBase.php
Contains \Drupal\views\Plugin\views\display\PathPluginBase.
RouterListener.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/EventListener/RouterListener.php
UpcastingTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/ParamConverter/UpcastingTest.php
Contains Drupal\system\Tests\ParamConverter\UpcastingTest.
user.module in drupal/core/modules/user/user.module
Enables the user registration and login system.
ViewFormControllerBase.php in drupal/core/modules/views_ui/lib/Drupal/views_ui/ViewFormControllerBase.php
Contains Drupal\views_ui\ViewFormControllerBase.
ViewPageController.php in drupal/core/modules/views/lib/Drupal/views/Routing/ViewPageController.php
Contains \Drupal\views\Routing\ViewPageController.
ViewPageControllerTest.php in drupal/core/modules/views/lib/Drupal/views/Tests/ViewPageControllerTest.php
Contains \Drupal\views\Tests\ViewPageControllerTest.