diff --git a/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.module b/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.module
index c028ad1..8772154 100644
--- a/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.module
+++ b/core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.module
@@ -5,21 +5,21 @@
  * Simpletest mock module for Ajax forms testing.
  */
 
-use Ajax\AddCssCommand;
-use Ajax\SettingsCommand;
-use Ajax\RestripeCommand;
-use Ajax\RemoveCommand;
-use Ajax\PrependCommand;
-use Ajax\InsertCommand;
-use Ajax\HtmlCommand;
-use Ajax\InvokeCommand;
-use Ajax\DataCommand;
-use Ajax\CssCommand;
-use Ajax\ChangedCommand;
-use Ajax\BeforeCommand;
-use Ajax\AppendCommand;
-use Ajax\AlertCommand;
-use Ajax\AfterCommand;
+use Drupal\Core\Ajax\AddCssCommand;
+use Drupal\Core\Ajax\SettingsCommand;
+use Drupal\Core\Ajax\RestripeCommand;
+use Drupal\Core\Ajax\RemoveCommand;
+use Drupal\Core\Ajax\PrependCommand;
+use Drupal\Core\Ajax\InsertCommand;
+use Drupal\Core\Ajax\HtmlCommand;
+use Drupal\Core\Ajax\InvokeCommand;
+use Drupal\Core\Ajax\DataCommand;
+use Drupal\Core\Ajax\CssCommand;
+use Drupal\Core\Ajax\ChangedCommand;
+use Drupal\Core\Ajax\BeforeCommand;
+use Drupal\Core\Ajax\AppendCommand;
+use Drupal\Core\Ajax\AlertCommand;
+use Drupal\Core\Ajax\AfterCommand;
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Form\FormStateInterface;
 
diff --git a/core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php b/core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php
index 99e404b..5bdb22a 100644
--- a/core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php
+++ b/core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php
@@ -1,8 +1,9 @@
 <?php
-use Drupal\module_autoload_test\SomeClass;
 
 namespace Drupal\module_test\Controller;
 
+use Drupal\module_autoload_test\SomeClass;
+
 /**
  * Controller routines for module_test routes.
  */
diff --git a/core/modules/taxonomy/tests/modules/taxonomy_crud/taxonomy_crud.module b/core/modules/taxonomy/tests/modules/taxonomy_crud/taxonomy_crud.module
index 77ded7e..dbe8781 100644
--- a/core/modules/taxonomy/tests/modules/taxonomy_crud/taxonomy_crud.module
+++ b/core/modules/taxonomy/tests/modules/taxonomy_crud/taxonomy_crud.module
@@ -7,7 +7,6 @@
 
 use Drupal\taxonomy\VocabularyInterface;
 
-
 /**
  * Implements hook_ENTITY_TYPE_presave() for taxonomy_vocabulary entities.
  */
diff --git a/core/modules/views/tests/fixtures/update/argument-placeholder.php b/core/modules/views/tests/fixtures/update/argument-placeholder.php
index cc3ed6d..03181bb 100644
--- a/core/modules/views/tests/fixtures/update/argument-placeholder.php
+++ b/core/modules/views/tests/fixtures/update/argument-placeholder.php
@@ -8,7 +8,6 @@
 use Drupal\Component\Serialization\Yaml;
 use Drupal\Core\Database\Database;
 
-
 $connection = Database::getConnection();
 
 $connection->insert('config')
diff --git a/core/modules/views/tests/fixtures/update/duplicate-field-handler.php b/core/modules/views/tests/fixtures/update/duplicate-field-handler.php
index d0ddf0b..32e74fb 100644
--- a/core/modules/views/tests/fixtures/update/duplicate-field-handler.php
+++ b/core/modules/views/tests/fixtures/update/duplicate-field-handler.php
@@ -8,7 +8,6 @@
 use Drupal\Component\Serialization\Yaml;
 use Drupal\Core\Database\Database;
 
-
 $connection = Database::getConnection();
 
 $connection->insert('config')
diff --git a/core/modules/views/tests/modules/views_test_data/views_test_data.module b/core/modules/views/tests/modules/views_test_data/views_test_data.module
index b417ad3..bd917c7 100644
--- a/core/modules/views/tests/modules/views_test_data/views_test_data.module
+++ b/core/modules/views/tests/modules/views_test_data/views_test_data.module
@@ -7,7 +7,6 @@
 
 use Drupal\Core\Form\FormStateInterface;
 
-
 /**
  * Access callback for the generic handler test.
  *
diff --git a/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php b/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
index fe839cd..93bd049 100644
--- a/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
+++ b/core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php
@@ -2,21 +2,21 @@
 
 namespace Drupal\views_ui\Form\Ajax;
 
-use Ajax\HighlightCommand;
-use AjaxUI\SetFormCommand;
-use Ajax\ReplaceTitleCommand;
-use Ajax\TriggerPreviewCommand;
-use Ajax\ShowButtonsCommand;
 use Drupal\Component\Utility\Html;
+use Drupal\Core\Ajax\AjaxResponse;
+use Drupal\Core\Ajax\CloseModalDialogCommand;
 use Drupal\Core\Ajax\OpenModalDialogCommand;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Render\BubbleableMetadata;
 use Drupal\Core\Render\RenderContext;
+use Drupal\views\Ajax\HighlightCommand;
+use Drupal\views\Ajax\ReplaceTitleCommand;
+use Drupal\views\Ajax\ShowButtonsCommand;
+use Drupal\views\Ajax\TriggerPreviewCommand;
 use Drupal\views\ViewEntityInterface;
-use Drupal\Core\Ajax\AjaxResponse;
-use Drupal\Core\Ajax\CloseModalDialogCommand;
+use Drupal\views_ui\Ajax\SetFormCommand;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
diff --git a/core/modules/views_ui/views_ui.theme.inc b/core/modules/views_ui/views_ui.theme.inc
index 5430474..3b58678 100644
--- a/core/modules/views_ui/views_ui.theme.inc
+++ b/core/modules/views_ui/views_ui.theme.inc
@@ -5,11 +5,11 @@
  * Preprocessors and theme functions for the Views UI.
  */
 
-use Element\Checkboxes;
-use Element\Radios;
 use Drupal\Component\Utility\SafeMarkup;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Render\Element;
+use Drupal\Core\Render\Element\Checkboxes;
+use Drupal\Core\Render\Element\Radios;
 use Drupal\Core\Url;
 
 /**
diff --git a/core/tests/Drupal/Tests/Core/PageCache/NoSessionOpenTest.php b/core/tests/Drupal/Tests/Core/PageCache/NoSessionOpenTest.php
index cd78d64..aa1f5d7 100644
--- a/core/tests/Drupal/Tests/Core/PageCache/NoSessionOpenTest.php
+++ b/core/tests/Drupal/Tests/Core/PageCache/NoSessionOpenTest.php
@@ -2,7 +2,7 @@
 
 namespace Drupal\Tests\Core\PageCache;
 
-use RequestPolicy\NoSessionOpen;
+use Drupal\Core\PageCache\RequestPolicy\NoSessionOpen;
 use Drupal\Core\PageCache\RequestPolicyInterface;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\HttpFoundation\Request;
diff --git a/core/tests/bootstrap.php b/core/tests/bootstrap.php
index e706e19..49e350a 100644
--- a/core/tests/bootstrap.php
+++ b/core/tests/bootstrap.php
@@ -9,7 +9,6 @@
 
 use Drupal\Component\Assertion\Handle;
 
-
 /**
  * Finds all valid extension directories recursively within a given directory.
  *