16 files declare their use of ResourceNotFoundException

ChainMatcher.php in drupal/core/lib/Drupal/Core/Routing/ChainMatcher.php
Definition of Drupal\Core\Routing\ChainMatcher.
ChainMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/ChainMatcherTest.php
Definition of Drupal\system\Tests\Routing\ChainMatcherTest.
LegacyUrlMatcher.php in drupal/core/lib/Drupal/Core/LegacyUrlMatcher.php
Definition of Drupal\Core\LegacyUrlMatcher.
MockMatcher.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/MockMatcher.php
Definition of Drupal\system\Tests\Routing\MockMatcher.
PathMatcher.php in drupal/core/lib/Drupal/Core/Routing/PathMatcher.php
Definition of Drupal\Core\Routing\PathMatcher.
PathMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/PathMatcherTest.php
Definition of Drupal\system\Tests\Routing\PartialMatcherTest.
RedirectableUrlMatcher.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/RedirectableUrlMatcher.php
RequestMatcherInterface.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/RequestMatcherInterface.php
RouteProcessorSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/RouteProcessorSubscriber.php
Definition of Drupal\Core\EventSubscriber\RouteProcessorSubscriber.
RouterListener.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/EventListener/RouterListener.php
UrlMatcher.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/UrlMatcher.php
UrlMatcherInterface.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/UrlMatcherInterface.php
UrlMatcherTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php
url_matcher1.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher1.php
url_matcher2.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher2.php
url_matcher3.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher3.php