8 files declare their use of AnnotatedClassDiscovery

AnnotatedClassDiscoveryAutomatedProviders.php in core/modules/migrate/src/Plugin/Discovery/AnnotatedClassDiscoveryAutomatedProviders.php
AnnotatedClassDiscoveryTest.php in core/tests/Drupal/KernelTests/Core/Plugin/Discovery/AnnotatedClassDiscoveryTest.php
CustomAnnotationClassDiscoveryTest.php in core/tests/Drupal/KernelTests/Core/Plugin/Discovery/CustomAnnotationClassDiscoveryTest.php
CustomDirectoryAnnotatedClassDiscoveryTest.php in core/tests/Drupal/KernelTests/Core/Plugin/Discovery/CustomDirectoryAnnotatedClassDiscoveryTest.php
DefaultPluginManager.php in core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
EntityTypeManager.php in core/lib/Drupal/Core/Entity/EntityTypeManager.php
LayoutPluginManager.php in core/lib/Drupal/Core/Layout/LayoutPluginManager.php
MigrateFieldPluginManagerTest.php in core/modules/migrate_drupal/tests/src/Unit/MigrateFieldPluginManagerTest.php

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.