118 files declare their use of CacheBackendInterface

ActionManager.php in core/lib/Drupal/Core/Action/ActionManager.php
AggregatorPluginManager.php in core/modules/aggregator/src/Plugin/AggregatorPluginManager.php
AliasManager.php in core/modules/path_alias/src/AliasManager.php
AliasWhitelist.php in core/modules/path_alias/src/AliasWhitelist.php
ArchiverManager.php in core/lib/Drupal/Core/Archiver/ArchiverManager.php
AssetResolver.php in core/lib/Drupal/Core/Asset/AssetResolver.php
BlockContentUuidLookup.php in core/modules/block_content/src/BlockContentUuidLookup.php
BlockManager.php in core/lib/Drupal/Core/Block/BlockManager.php
BlockManagerTest.php in core/tests/Drupal/Tests/Core/Block/BlockManagerTest.php
BookManager.php in core/modules/book/src/BookManager.php
BookManagerTest.php in core/modules/book/tests/src/Unit/BookManagerTest.php
BreakpointManager.php in core/modules/breakpoint/src/BreakpointManager.php
CachedStorage.php in core/lib/Drupal/Core/Config/CachedStorage.php
CKEditor4To5UpgradePluginManager.php in core/modules/ckeditor5/src/Plugin/CKEditor4To5UpgradePluginManager.php
CKEditor5.php in core/modules/ckeditor5/src/Plugin/Editor/CKEditor5.php
CKEditor5PluginManager.php in core/modules/ckeditor5/src/Plugin/CKEditor5PluginManager.php
CKEditorPluginManager.php in core/modules/ckeditor/src/CKEditorPluginManager.php
CommentStorage.php in core/modules/comment/src/CommentStorage.php
ConditionManager.php in core/lib/Drupal/Core/Condition/ConditionManager.php
ConfigMapperManager.php in core/modules/config_translation/src/ConfigMapperManager.php
ConstraintManager.php in core/lib/Drupal/Core/Validation/ConstraintManager.php
ContentEntityStorageBase.php in core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php
ContentModerationAccessTest.php in core/modules/content_moderation/tests/src/Kernel/ContentModerationAccessTest.php
ContextualLinkManager.php in core/lib/Drupal/Core/Menu/ContextualLinkManager.php
DbUpdateController.php in core/modules/system/src/Controller/DbUpdateController.php
DefaultPluginManager.php in core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
EditorManager.php in core/modules/editor/src/Plugin/EditorManager.php
ElementInfoManager.php in core/lib/Drupal/Core/Render/ElementInfoManager.php
EntityDisplayRepository.php in core/lib/Drupal/Core/Entity/EntityDisplayRepository.php
EntityFieldManager.php in core/lib/Drupal/Core/Entity/EntityFieldManager.php
EntityFieldManagerTest.php in core/tests/Drupal/Tests/Core/Entity/EntityFieldManagerTest.php
Contains \Drupal\Tests\Core\Entity\EntityFieldManagerTest.
EntityLastInstalledSchemaRepository.php in core/lib/Drupal/Core/Entity/EntityLastInstalledSchemaRepository.php
EntityTypeBundleInfo.php in core/lib/Drupal/Core/Entity/EntityTypeBundleInfo.php
EntityTypeBundleInfoTest.php in core/tests/Drupal/Tests/Core/Entity/EntityTypeBundleInfoTest.php
EntityTypeManager.php in core/lib/Drupal/Core/Entity/EntityTypeManager.php
EntityTypeManagerTest.php in core/tests/Drupal/Tests/Core/Entity/EntityTypeManagerTest.php
Contains \Drupal\Tests\Core\Entity\EntityTypeManagerTest.
EntityViewsDataTest.php in core/modules/views/tests/src/Kernel/Entity/EntityViewsDataTest.php
ExtensionList.php in core/lib/Drupal/Core/Extension/ExtensionList.php
ExtensionListTest.php in core/tests/Drupal/Tests/Core/Extension/ExtensionListTest.php
FieldDefinitionListener.php in core/lib/Drupal/Core/Field/FieldDefinitionListener.php
FieldDefinitionListenerTest.php in core/tests/Drupal/Tests/Core/Field/FieldDefinitionListenerTest.php
FieldTypePluginManager.php in core/lib/Drupal/Core/Field/FieldTypePluginManager.php
FilterPluginManager.php in core/modules/filter/src/FilterPluginManager.php
FormatterPluginManager.php in core/lib/Drupal/Core/Field/FormatterPluginManager.php
GenericCacheBackendUnitTestBase.php in core/tests/Drupal/KernelTests/Core/Cache/GenericCacheBackendUnitTestBase.php
HelpSectionManager.php in core/modules/help/src/HelpSectionManager.php
HelpTopicPluginManager.php in core/modules/help_topics/src/HelpTopicPluginManager.php
ImageEffectManager.php in core/modules/image/src/ImageEffectManager.php
ImageToolkitManager.php in core/lib/Drupal/Core/ImageToolkit/ImageToolkitManager.php
ImageToolkitOperationManager.php in core/lib/Drupal/Core/ImageToolkit/ImageToolkitOperationManager.php
InPlaceEditorManager.php in core/modules/quickedit/src/Plugin/InPlaceEditorManager.php
Internal.php in core/modules/ckeditor/src/Plugin/CKEditorPlugin/Internal.php
ItemCacheTagsTest.php in core/modules/aggregator/tests/src/Functional/ItemCacheTagsTest.php
LanguageNegotiationMethodManager.php in core/modules/language/src/LanguageNegotiationMethodManager.php
LayoutPluginManager.php in core/lib/Drupal/Core/Layout/LayoutPluginManager.php
LayoutPluginManagerTest.php in core/tests/Drupal/Tests/Core/Layout/LayoutPluginManagerTest.php
LibraryDiscoveryCollector.php in core/lib/Drupal/Core/Asset/LibraryDiscoveryCollector.php
LinkRelationTypeManager.php in core/lib/Drupal/Core/Http/LinkRelationTypeManager.php
LocalActionManager.php in core/lib/Drupal/Core/Menu/LocalActionManager.php
LocalActionManagerTest.php in core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php
Contains \Drupal\Tests\Core\Menu\LocalActionManagerTest.
LocaleLookup.php in core/modules/locale/src/LocaleLookup.php
LocaleTranslation.php in core/modules/locale/src/LocaleTranslation.php
LocalTaskManager.php in core/lib/Drupal/Core/Menu/LocalTaskManager.php
MailManager.php in core/lib/Drupal/Core/Mail/MailManager.php
MediaSourceManager.php in core/modules/media/src/MediaSourceManager.php
MemoryCacheInterface.php in core/lib/Drupal/Core/Cache/MemoryCache/MemoryCacheInterface.php
MenuActiveTrail.php in core/lib/Drupal/Core/Menu/MenuActiveTrail.php
MenuTreeStorage.php in core/lib/Drupal/Core/Menu/MenuTreeStorage.php
MigrateDestinationPluginManager.php in core/modules/migrate/src/Plugin/MigrateDestinationPluginManager.php
MigrateFieldPluginManagerTest.php in core/modules/migrate_drupal/tests/src/Unit/MigrateFieldPluginManagerTest.php
MigratePluginManager.php in core/modules/migrate/src/Plugin/MigratePluginManager.php
MigrateSourcePluginManager.php in core/modules/migrate/src/Plugin/MigrateSourcePluginManager.php
MigrateSourceTest.php in core/modules/migrate/tests/src/Unit/MigrateSourceTest.php
Contains \Drupal\Tests\migrate\Unit\MigrateSourceTest.
MigrationPluginManager.php in core/modules/migrate_drupal/src/MigrationPluginManager.php
MigrationPluginManager.php in core/modules/migrate/src/Plugin/MigrationPluginManager.php
ModuleExtensionList.php in core/lib/Drupal/Core/Extension/ModuleExtensionList.php
ModuleHandler.php in core/lib/Drupal/Core/Extension/ModuleHandler.php
ModuleHandlerTest.php in core/tests/Drupal/Tests/Core/Extension/ModuleHandlerTest.php
ModuleInstaller.php in core/lib/Drupal/Core/Extension/ModuleInstaller.php
PageCache.php in core/modules/page_cache/src/StackMiddleware/PageCache.php
PagerKernelTest.php in core/modules/views/tests/src/Kernel/Plugin/PagerKernelTest.php
PermissionsHashGenerator.php in core/lib/Drupal/Core/Session/PermissionsHashGenerator.php
PluginManager.php in core/modules/system/tests/modules/lazy_route_provider_install_test/src/PluginManager.php
ProviderRepositoryTest.php in core/modules/media/tests/src/Kernel/ProviderRepositoryTest.php
QueueWorkerManager.php in core/lib/Drupal/Core/Queue/QueueWorkerManager.php
Registry.php in core/lib/Drupal/Core/Theme/Registry.php
RelationLinkManager.php in core/modules/hal/src/LinkManager/RelationLinkManager.php
ResourceFetcher.php in core/modules/media/src/OEmbed/ResourceFetcher.php
ResourcePluginManager.php in core/modules/rest/src/Plugin/Type/ResourcePluginManager.php
ResourceTypeRepository.php in core/modules/jsonapi/src/ResourceType/ResourceTypeRepository.php
RoutePreloader.php in core/lib/Drupal/Core/Routing/RoutePreloader.php
RouteProvider.php in core/lib/Drupal/Core/Routing/RouteProvider.php
SearchPluginManager.php in core/modules/search/src/SearchPluginManager.php
SectionStorageManager.php in core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php
SectionStorageManagerTest.php in core/modules/layout_builder/tests/src/Unit/SectionStorageManagerTest.php
SelectionPluginManager.php in core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionPluginManager.php
ShortcutCacheTagsTest.php in core/modules/shortcut/tests/src/Functional/ShortcutCacheTagsTest.php
SqlContentEntityStorage.php in core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php
Tag.php in core/modules/views/src/Plugin/views/cache/Tag.php
ThemeExtensionList.php in core/lib/Drupal/Core/Extension/ThemeExtensionList.php
ThemeInitialization.php in core/lib/Drupal/Core/Theme/ThemeInitialization.php
ThemeRegistry.php in core/lib/Drupal/Core/Utility/ThemeRegistry.php
TipPluginManager.php in core/modules/tour/src/TipPluginManager.php
Token.php in core/lib/Drupal/Core/Utility/Token.php
TwigEnvironment.php in core/lib/Drupal/Core/Template/TwigEnvironment.php
TwigPhpStorageCache.php in core/lib/Drupal/Core/Template/TwigPhpStorageCache.php
TypedConfigManager.php in core/lib/Drupal/Core/Config/TypedConfigManager.php
TypedDataManager.php in core/lib/Drupal/Core/TypedData/TypedDataManager.php
TypeLinkManager.php in core/modules/hal/src/LinkManager/TypeLinkManager.php
UpdateBackend.php in core/lib/Drupal/Core/Update/UpdateBackend.php
UrlResolver.php in core/modules/media/src/OEmbed/UrlResolver.php
VariantManager.php in core/lib/Drupal/Core/Display/VariantManager.php
ViewsData.php in core/modules/views/src/ViewsData.php
ViewsHandlerManager.php in core/modules/views/src/Plugin/ViewsHandlerManager.php
ViewsPluginManager.php in core/modules/views/src/Plugin/ViewsPluginManager.php
WidgetPluginManager.php in core/lib/Drupal/Core/Field/WidgetPluginManager.php
WorkflowTypeManager.php in core/modules/workflows/src/WorkflowTypeManager.php
WorkspaceRepository.php in core/modules/workspaces/src/WorkspaceRepository.php

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