53 files declare their use of DefaultPluginManager
- ActionManager.php in core/lib/ Drupal/ Core/ Action/ ActionManager.php 
- ArchiverManager.php in core/lib/ Drupal/ Core/ Archiver/ ArchiverManager.php 
- BlockManager.php in core/lib/ Drupal/ Core/ Block/ BlockManager.php 
- BreakpointManager.php in core/modules/ breakpoint/ src/ BreakpointManager.php 
- CategorizingPluginManagerTraitTest.php in core/tests/ Drupal/ Tests/ Core/ Plugin/ CategorizingPluginManagerTraitTest.php 
- CKEditor5PluginManager.php in core/modules/ ckeditor5/ src/ Plugin/ CKEditor5PluginManager.php 
- ComponentPluginManager.php in core/lib/ Drupal/ Core/ Theme/ ComponentPluginManager.php 
- ConditionManager.php in core/lib/ Drupal/ Core/ Condition/ ConditionManager.php 
- ConfigActionManager.php in core/lib/ Drupal/ Core/ Config/ Action/ ConfigActionManager.php 
- ConfigMapperManager.php in core/modules/ config_translation/ src/ ConfigMapperManager.php 
- ConstraintManager.php in core/lib/ Drupal/ Core/ Validation/ ConstraintManager.php 
- ContextualLinkManager.php in core/lib/ Drupal/ Core/ Menu/ ContextualLinkManager.php 
- DefaultPluginManagerTest.php in core/tests/ Drupal/ KernelTests/ Core/ Plugin/ DefaultPluginManagerTest.php 
- DefaultPluginManagerTest.php in core/tests/ Drupal/ Tests/ Core/ Plugin/ DefaultPluginManagerTest.php 
- DefaultsTestPluginManager.php in core/modules/ system/ tests/ modules/ plugin_test/ src/ Plugin/ DefaultsTestPluginManager.php 
- EditorManager.php in core/modules/ editor/ src/ Plugin/ EditorManager.php 
- ElementInfoManager.php in core/lib/ Drupal/ Core/ Render/ ElementInfoManager.php 
- EntityTypeManager.php in core/lib/ Drupal/ Core/ Entity/ EntityTypeManager.php 
- FieldTypeCategoryManager.php in core/lib/ Drupal/ Core/ Field/ FieldTypeCategoryManager.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 
- HelpSectionManager.php in core/modules/ help/ src/ HelpSectionManager.php 
- HelpTopicPluginManager.php in core/modules/ help/ src/ HelpTopicPluginManager.php 
- IconExtractorPluginManager.php in core/lib/ Drupal/ Core/ Theme/ Icon/ IconExtractorPluginManager.php 
- IconPackManager.php in core/lib/ Drupal/ Core/ Theme/ Icon/ Plugin/ IconPackManager.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 
- LanguageNegotiationMethodManager.php in core/modules/ language/ src/ LanguageNegotiationMethodManager.php 
- LayoutPluginManager.php in core/lib/ Drupal/ Core/ Layout/ LayoutPluginManager.php 
- LinkRelationTypeManager.php in core/lib/ Drupal/ Core/ Http/ LinkRelationTypeManager.php 
- LocalActionManager.php in core/lib/ Drupal/ Core/ Menu/ LocalActionManager.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 
- MigratePluginManager.php in core/modules/ migrate/ src/ Plugin/ MigratePluginManager.php 
- MigrationPluginManager.php in core/modules/ migrate/ src/ Plugin/ MigrationPluginManager.php 
- PluginManager.php in core/modules/ system/ tests/ modules/ lazy_route_provider_install_test/ src/ PluginManager.php 
- PluginManagerCacheClearer.php in core/modules/ system/ tests/ modules/ module_test/ src/ PluginManagerCacheClearer.php 
- QueueWorkerManager.php in core/lib/ Drupal/ Core/ Queue/ QueueWorkerManager.php 
- ResourcePluginManager.php in core/modules/ rest/ src/ Plugin/ Type/ ResourcePluginManager.php 
- SearchPluginManager.php in core/modules/ search/ src/ SearchPluginManager.php 
- SectionStorageManager.php in core/modules/ layout_builder/ src/ SectionStorage/ SectionStorageManager.php 
- SelectionPluginManager.php in core/lib/ Drupal/ Core/ Entity/ EntityReferenceSelection/ SelectionPluginManager.php 
- TestPluginManager.php in core/tests/ Drupal/ Tests/ Core/ Plugin/ TestPluginManager.php 
- TopBarItemManager.php in core/modules/ navigation/ src/ TopBarItemManager.php 
- TypedDataManager.php in core/lib/ Drupal/ Core/ TypedData/ TypedDataManager.php 
- VariantManager.php in core/lib/ Drupal/ Core/ Display/ VariantManager.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 
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