12 files declare their use of UnknownExtensionException in Drupal 9
- ExtensionList.php in core/
lib/ Drupal/ Core/ Extension/ ExtensionList.php - ExtensionListTest.php in core/
tests/ Drupal/ Tests/ Core/ Extension/ ExtensionListTest.php - ExtensionPathResolver.php in core/
lib/ Drupal/ Core/ Extension/ ExtensionPathResolver.php - ExtensionPathResolverTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Bootstrap/ ExtensionPathResolverTest.php - ModuleHandler.php in core/
lib/ Drupal/ Core/ Extension/ ModuleHandler.php - ModuleHandlerTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Extension/ ModuleHandlerTest.php - ReviewForm.php in core/
modules/ migrate_drupal_ui/ src/ Form/ ReviewForm.php - system.post_update.php in core/
modules/ system/ system.post_update.php - Post update functions for System.
- ThemeHandler.php in core/
lib/ Drupal/ Core/ Extension/ ThemeHandler.php - ThemeInstaller.php in core/
lib/ Drupal/ Core/ Extension/ ThemeInstaller.php - ThemeInstallerTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Theme/ ThemeInstallerTest.php - update.inc in core/
includes/ update.inc - Drupal database update API.