diff --git a/.doctrine-project.json b/.doctrine-project.json
index 177ad9984..ca091627a 100644
--- a/.doctrine-project.json
+++ b/.doctrine-project.json
@@ -6,17 +6,19 @@
   "versions": [
     {
       "name": "3.0",
+      "branchName": "3.0.x",
       "slug": "latest",
       "upcoming": true
     },
     {
       "name": "2.17",
+      "branchName": "2.17.x",
       "slug": "2.17",
       "upcoming": true
     },
     {
       "name": "2.16",
-      "slug": "latest",
+      "slug": "2.16",
       "current": true
     },
     {
diff --git a/config/dbal.php b/config/dbal.php
index fa710b495..b4d4cde4b 100644
--- a/config/dbal.php
+++ b/config/dbal.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
 use Doctrine\Bundle\DoctrineBundle\Command\CreateDatabaseDoctrineCommand;
@@ -44,7 +46,7 @@
         ->alias(ManagerRegistry::class, 'doctrine')
         ->alias(LegacyManagerRegistry::class, 'doctrine')
 
-        ->set('data_collector.doctrine', param('doctrine.data_collector.class'))
+        ->set('data_collector.doctrine', (string) param('doctrine.data_collector.class'))
             ->args([
                 service('doctrine'),
                 true,
@@ -52,9 +54,9 @@
             ])
             ->tag('data_collector', ['template' => '@Doctrine/Collector/db.html.twig', 'id' => 'db', 'priority' => 250])
 
-        ->set('doctrine.dbal.connection_factory', param('doctrine.dbal.connection_factory.class'))
+        ->set('doctrine.dbal.connection_factory', (string) param('doctrine.dbal.connection_factory.class'))
             ->args([
-                param('doctrine.dbal.connection_factory.types'),
+                (string) param('doctrine.dbal.connection_factory.types'),
                 service('doctrine.dbal.connection_factory.dsn_parser'),
             ])
 
@@ -67,23 +69,23 @@
             ->abstract()
             ->factory([service('doctrine.dbal.connection_factory'), 'createConnection'])
 
-        ->set('doctrine.dbal.connection.event_manager', param('doctrine.dbal.connection.event_manager.class'))
+        ->set('doctrine.dbal.connection.event_manager', (string) param('doctrine.dbal.connection.event_manager.class'))
             ->abstract()
             ->args([
                 service('service_container'),
             ])
 
-        ->set('doctrine.dbal.connection.configuration', param('doctrine.dbal.configuration.class'))
+        ->set('doctrine.dbal.connection.configuration', (string) param('doctrine.dbal.configuration.class'))
             ->abstract()
 
-        ->set('doctrine', param('doctrine.class'))
+        ->set('doctrine', (string) param('doctrine.class'))
             ->public()
             ->args([
                 service('service_container'),
-                param('doctrine.connections'),
-                param('doctrine.entity_managers'),
-                param('doctrine.default_connection'),
-                param('doctrine.default_entity_manager'),
+                (string) param('doctrine.connections'),
+                (string) param('doctrine.entity_managers'),
+                (string) param('doctrine.default_connection'),
+                (string) param('doctrine.default_entity_manager'),
             ])
             ->tag('kernel.reset', ['method' => 'reset'])
 
diff --git a/config/messenger.php b/config/messenger.php
index 80ba1f35f..54eb42934 100644
--- a/config/messenger.php
+++ b/config/messenger.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
 use Symfony\Bridge\Doctrine\Messenger\DoctrineClearEntityManagerWorkerSubscriber;
diff --git a/config/middlewares.php b/config/middlewares.php
index 07d5e5a42..a857faac0 100644
--- a/config/middlewares.php
+++ b/config/middlewares.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
 use ArrayObject;
diff --git a/config/orm.php b/config/orm.php
index 4429ff40d..819c10f72 100644
--- a/config/orm.php
+++ b/config/orm.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
 use Doctrine\Bundle\DoctrineBundle\Command\ImportMappingDoctrineCommand;
@@ -142,13 +144,13 @@
 
         ->alias('doctrine.orm.metadata.annotation_reader', 'annotation_reader')
 
-        ->set('doctrine.orm.proxy_cache_warmer', param('doctrine.orm.proxy_cache_warmer.class'))
+        ->set('doctrine.orm.proxy_cache_warmer', (string) param('doctrine.orm.proxy_cache_warmer.class'))
             ->tag('kernel.cache_warmer')
             ->args([
                 service('doctrine'),
             ])
 
-        ->set('form.type_guesser.doctrine', param('form.type_guesser.doctrine.class'))
+        ->set('form.type_guesser.doctrine', (string) param('form.type_guesser.doctrine.class'))
             ->tag('form.type_guesser')
             ->args([
                 service('doctrine'),
@@ -160,10 +162,10 @@
                 service('doctrine'),
             ])
 
-        ->set('doctrine.orm.configuration', param('doctrine.orm.configuration.class'))
+        ->set('doctrine.orm.configuration', (string) param('doctrine.orm.configuration.class'))
             ->abstract()
 
-        ->set('doctrine.orm.entity_manager.abstract', param('doctrine.orm.entity_manager.class'))
+        ->set('doctrine.orm.entity_manager.abstract', (string) param('doctrine.orm.entity_manager.class'))
             ->abstract()
             ->lazy()
 
@@ -174,32 +176,32 @@
                 ]),
             ])
 
-        ->set('doctrine.orm.manager_configurator.abstract', param('doctrine.orm.manager_configurator.class'))
+        ->set('doctrine.orm.manager_configurator.abstract', (string) param('doctrine.orm.manager_configurator.class'))
             ->abstract()
             ->args([
                 [],
                 [],
             ])
 
-        ->set('doctrine.orm.validator.unique', param('doctrine.orm.validator.unique.class'))
+        ->set('doctrine.orm.validator.unique', (string) param('doctrine.orm.validator.unique.class'))
             ->tag('validator.constraint_validator', ['alias' => 'doctrine.orm.validator.unique'])
             ->args([
                 service('doctrine'),
             ])
 
-        ->set('doctrine.orm.validator_initializer', param('doctrine.orm.validator_initializer.class'))
+        ->set('doctrine.orm.validator_initializer', (string) param('doctrine.orm.validator_initializer.class'))
             ->tag('validator.initializer')
             ->args([
                 service('doctrine'),
             ])
 
-        ->set('doctrine.orm.security.user.provider', param('doctrine.orm.security.user.provider.class'))
+        ->set('doctrine.orm.security.user.provider', (string) param('doctrine.orm.security.user.provider.class'))
             ->abstract()
             ->args([
                 service('doctrine'),
             ])
 
-        ->set('doctrine.orm.listeners.resolve_target_entity', param('doctrine.orm.listeners.resolve_target_entity.class'))
+        ->set('doctrine.orm.listeners.resolve_target_entity', (string) param('doctrine.orm.listeners.resolve_target_entity.class'))
 
         ->set('doctrine.orm.listeners.doctrine_dbal_cache_adapter_schema_listener', DoctrineDbalCacheAdapterSchemaListener::class)
             ->args([
@@ -225,21 +227,21 @@
             ])
             ->tag('doctrine.event_listener', ['event' => 'postGenerateSchema'])
 
-        ->set('doctrine.orm.naming_strategy.default', param('doctrine.orm.naming_strategy.default.class'))
+        ->set('doctrine.orm.naming_strategy.default', (string) param('doctrine.orm.naming_strategy.default.class'))
 
-        ->set('doctrine.orm.naming_strategy.underscore', param('doctrine.orm.naming_strategy.underscore.class'))
+        ->set('doctrine.orm.naming_strategy.underscore', (string) param('doctrine.orm.naming_strategy.underscore.class'))
 
-        ->set('doctrine.orm.naming_strategy.underscore_number_aware', param('doctrine.orm.naming_strategy.underscore.class'))
+        ->set('doctrine.orm.naming_strategy.underscore_number_aware', (string) param('doctrine.orm.naming_strategy.underscore.class'))
             ->args([
                 CASE_LOWER,
                 true,
             ])
 
-        ->set('doctrine.orm.quote_strategy.default', param('doctrine.orm.quote_strategy.default.class'))
+        ->set('doctrine.orm.quote_strategy.default', (string) param('doctrine.orm.quote_strategy.default.class'))
 
-        ->set('doctrine.orm.quote_strategy.ansi', param('doctrine.orm.quote_strategy.ansi.class'))
+        ->set('doctrine.orm.quote_strategy.ansi', (string) param('doctrine.orm.quote_strategy.ansi.class'))
 
-        ->set('doctrine.orm.typed_field_mapper.default', param('doctrine.orm.typed_field_mapper.default.class'))
+        ->set('doctrine.orm.typed_field_mapper.default', (string) param('doctrine.orm.typed_field_mapper.default.class'))
 
         ->set('doctrine.ulid_generator', 'Symfony\\Bridge\\Doctrine\\IdGenerator\\UlidGenerator')
             ->args([
@@ -360,7 +362,7 @@
         ->set('doctrine.mapping_import_command', ImportMappingDoctrineCommand::class)
             ->args([
                 service('doctrine'),
-                param('kernel.bundles'),
+                (string) param('kernel.bundles'),
             ])
             ->tag('console.command', ['command' => 'doctrine:mapping:import']);
 };
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index e1db9f6d3..376d21685 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -18,7 +18,6 @@
     <file>tests</file>
 
     <rule ref="Doctrine">
-        <exclude name="SlevomatCodingStandard.TypeHints.DeclareStrictTypes"/>
         <exclude name="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingNativeTypeHint"/> <!-- we can do it in doctrine-bundle 3.0-->
         <exclude name="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint"/> <!-- we can do it in doctrine-bundle 3.0 -->
         <exclude name="SlevomatCodingStandard.Classes.SuperfluousInterfaceNaming.SuperfluousSuffix"/>
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index a63bdf44d..7ee7ace92 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          colors="true"
-         bootstrap="tests/bootstrap.php"
          xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
          displayDetailsOnTestsThatTriggerDeprecations="true"
          failOnDeprecation="true"
diff --git a/src/Attribute/AsDoctrineListener.php b/src/Attribute/AsDoctrineListener.php
index 43489c523..0c11e0308 100644
--- a/src/Attribute/AsDoctrineListener.php
+++ b/src/Attribute/AsDoctrineListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Attribute;
 
 use Attribute;
diff --git a/src/Attribute/AsEntityListener.php b/src/Attribute/AsEntityListener.php
index b55578736..00042a7dd 100644
--- a/src/Attribute/AsEntityListener.php
+++ b/src/Attribute/AsEntityListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Attribute;
 
 use Attribute;
diff --git a/src/Attribute/AsMiddleware.php b/src/Attribute/AsMiddleware.php
index f1cb8bd53..2ebc78d6a 100644
--- a/src/Attribute/AsMiddleware.php
+++ b/src/Attribute/AsMiddleware.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Attribute;
 
 use Attribute;
diff --git a/src/CacheWarmer/DoctrineMetadataCacheWarmer.php b/src/CacheWarmer/DoctrineMetadataCacheWarmer.php
index 7bb9afe97..6a42475c1 100644
--- a/src/CacheWarmer/DoctrineMetadataCacheWarmer.php
+++ b/src/CacheWarmer/DoctrineMetadataCacheWarmer.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\CacheWarmer;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Command/CreateDatabaseDoctrineCommand.php b/src/Command/CreateDatabaseDoctrineCommand.php
index cd25e2047..344b53e30 100644
--- a/src/Command/CreateDatabaseDoctrineCommand.php
+++ b/src/Command/CreateDatabaseDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command;
 
 use Doctrine\DBAL\DriverManager;
diff --git a/src/Command/DoctrineCommand.php b/src/Command/DoctrineCommand.php
index 69a3a0bb3..c723a0f9e 100644
--- a/src/Command/DoctrineCommand.php
+++ b/src/Command/DoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command;
 
 use Doctrine\DBAL\Connection;
diff --git a/src/Command/DropDatabaseDoctrineCommand.php b/src/Command/DropDatabaseDoctrineCommand.php
index 0904a6e4b..e7c86968f 100644
--- a/src/Command/DropDatabaseDoctrineCommand.php
+++ b/src/Command/DropDatabaseDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command;
 
 use Doctrine\DBAL\DriverManager;
diff --git a/src/Command/ImportMappingDoctrineCommand.php b/src/Command/ImportMappingDoctrineCommand.php
index fe7d3bf21..dbfe89507 100644
--- a/src/Command/ImportMappingDoctrineCommand.php
+++ b/src/Command/ImportMappingDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command;
 
 use Doctrine\ORM\Mapping\ClassMetadata;
diff --git a/src/Command/Proxy/ClearMetadataCacheDoctrineCommand.php b/src/Command/Proxy/ClearMetadataCacheDoctrineCommand.php
index f438e4157..e390f1717 100644
--- a/src/Command/Proxy/ClearMetadataCacheDoctrineCommand.php
+++ b/src/Command/Proxy/ClearMetadataCacheDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\MetadataCommand;
diff --git a/src/Command/Proxy/ClearQueryCacheDoctrineCommand.php b/src/Command/Proxy/ClearQueryCacheDoctrineCommand.php
index d3a6a5e68..67502b25f 100644
--- a/src/Command/Proxy/ClearQueryCacheDoctrineCommand.php
+++ b/src/Command/Proxy/ClearQueryCacheDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\QueryCommand;
diff --git a/src/Command/Proxy/ClearResultCacheDoctrineCommand.php b/src/Command/Proxy/ClearResultCacheDoctrineCommand.php
index 71052ea32..27844f360 100644
--- a/src/Command/Proxy/ClearResultCacheDoctrineCommand.php
+++ b/src/Command/Proxy/ClearResultCacheDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\ResultCommand;
diff --git a/src/Command/Proxy/CollectionRegionDoctrineCommand.php b/src/Command/Proxy/CollectionRegionDoctrineCommand.php
index 2dce1ae6b..07059becc 100644
--- a/src/Command/Proxy/CollectionRegionDoctrineCommand.php
+++ b/src/Command/Proxy/CollectionRegionDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\CollectionRegionCommand;
diff --git a/src/Command/Proxy/ConvertMappingDoctrineCommand.php b/src/Command/Proxy/ConvertMappingDoctrineCommand.php
index 36d2110ee..7437ae7fd 100644
--- a/src/Command/Proxy/ConvertMappingDoctrineCommand.php
+++ b/src/Command/Proxy/ConvertMappingDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ConvertMappingCommand;
diff --git a/src/Command/Proxy/CreateSchemaDoctrineCommand.php b/src/Command/Proxy/CreateSchemaDoctrineCommand.php
index 514e362cd..86e42c6f7 100644
--- a/src/Command/Proxy/CreateSchemaDoctrineCommand.php
+++ b/src/Command/Proxy/CreateSchemaDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\SchemaTool\CreateCommand;
diff --git a/src/Command/Proxy/DoctrineCommandHelper.php b/src/Command/Proxy/DoctrineCommandHelper.php
index 8b079e868..b41a41151 100644
--- a/src/Command/Proxy/DoctrineCommandHelper.php
+++ b/src/Command/Proxy/DoctrineCommandHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Command/Proxy/DropSchemaDoctrineCommand.php b/src/Command/Proxy/DropSchemaDoctrineCommand.php
index 050db99c9..74d54b914 100644
--- a/src/Command/Proxy/DropSchemaDoctrineCommand.php
+++ b/src/Command/Proxy/DropSchemaDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\SchemaTool\DropCommand;
diff --git a/src/Command/Proxy/EnsureProductionSettingsDoctrineCommand.php b/src/Command/Proxy/EnsureProductionSettingsDoctrineCommand.php
index 023b5b132..d5b688626 100644
--- a/src/Command/Proxy/EnsureProductionSettingsDoctrineCommand.php
+++ b/src/Command/Proxy/EnsureProductionSettingsDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\EnsureProductionSettingsCommand;
diff --git a/src/Command/Proxy/EntityRegionCacheDoctrineCommand.php b/src/Command/Proxy/EntityRegionCacheDoctrineCommand.php
index 70f3d6680..26815fef3 100644
--- a/src/Command/Proxy/EntityRegionCacheDoctrineCommand.php
+++ b/src/Command/Proxy/EntityRegionCacheDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\EntityRegionCommand;
diff --git a/src/Command/Proxy/InfoDoctrineCommand.php b/src/Command/Proxy/InfoDoctrineCommand.php
index 8cc7669de..72c4329e0 100644
--- a/src/Command/Proxy/InfoDoctrineCommand.php
+++ b/src/Command/Proxy/InfoDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\InfoCommand;
diff --git a/src/Command/Proxy/OrmProxyCommand.php b/src/Command/Proxy/OrmProxyCommand.php
index 114833f8f..a18f28826 100644
--- a/src/Command/Proxy/OrmProxyCommand.php
+++ b/src/Command/Proxy/OrmProxyCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\EntityManagerProvider;
diff --git a/src/Command/Proxy/QueryRegionCacheDoctrineCommand.php b/src/Command/Proxy/QueryRegionCacheDoctrineCommand.php
index 8cb3ce4f7..c004c1050 100644
--- a/src/Command/Proxy/QueryRegionCacheDoctrineCommand.php
+++ b/src/Command/Proxy/QueryRegionCacheDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ClearCache\QueryRegionCommand;
diff --git a/src/Command/Proxy/RunDqlDoctrineCommand.php b/src/Command/Proxy/RunDqlDoctrineCommand.php
index 7c7eb9fad..cde582408 100644
--- a/src/Command/Proxy/RunDqlDoctrineCommand.php
+++ b/src/Command/Proxy/RunDqlDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\RunDqlCommand;
diff --git a/src/Command/Proxy/RunSqlDoctrineCommand.php b/src/Command/Proxy/RunSqlDoctrineCommand.php
index 7977a4cbd..737e30ce1 100644
--- a/src/Command/Proxy/RunSqlDoctrineCommand.php
+++ b/src/Command/Proxy/RunSqlDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\DBAL\Tools\Console\Command\RunSqlCommand;
diff --git a/src/Command/Proxy/UpdateSchemaDoctrineCommand.php b/src/Command/Proxy/UpdateSchemaDoctrineCommand.php
index 1c5eec40f..22b9f8819 100644
--- a/src/Command/Proxy/UpdateSchemaDoctrineCommand.php
+++ b/src/Command/Proxy/UpdateSchemaDoctrineCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\SchemaTool\UpdateCommand;
diff --git a/src/Command/Proxy/ValidateSchemaCommand.php b/src/Command/Proxy/ValidateSchemaCommand.php
index 390935998..0de59e575 100644
--- a/src/Command/Proxy/ValidateSchemaCommand.php
+++ b/src/Command/Proxy/ValidateSchemaCommand.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Command\Proxy;
 
 use Doctrine\ORM\Tools\Console\Command\ValidateSchemaCommand as DoctrineValidateSchemaCommand;
diff --git a/src/ConnectionFactory.php b/src/ConnectionFactory.php
index fd8bf769b..04b503040 100644
--- a/src/ConnectionFactory.php
+++ b/src/ConnectionFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle;
 
 use Doctrine\Common\EventManager;
diff --git a/src/Controller/ProfilerController.php b/src/Controller/ProfilerController.php
index cc00db026..91ef8c46b 100644
--- a/src/Controller/ProfilerController.php
+++ b/src/Controller/ProfilerController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Controller;
 
 use Doctrine\DBAL\Connection;
diff --git a/src/DataCollector/DoctrineDataCollector.php b/src/DataCollector/DoctrineDataCollector.php
index 23818b716..5f2d92a25 100644
--- a/src/DataCollector/DoctrineDataCollector.php
+++ b/src/DataCollector/DoctrineDataCollector.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DataCollector;
 
 use Doctrine\DBAL\Types\Type;
diff --git a/src/Dbal/BlacklistSchemaAssetFilter.php b/src/Dbal/BlacklistSchemaAssetFilter.php
index d17516912..5cac2ea2e 100644
--- a/src/Dbal/BlacklistSchemaAssetFilter.php
+++ b/src/Dbal/BlacklistSchemaAssetFilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Dbal;
 
 use Doctrine\DBAL\Schema\AbstractAsset;
diff --git a/src/Dbal/ManagerRegistryAwareConnectionProvider.php b/src/Dbal/ManagerRegistryAwareConnectionProvider.php
index f14e389c6..816f401ba 100644
--- a/src/Dbal/ManagerRegistryAwareConnectionProvider.php
+++ b/src/Dbal/ManagerRegistryAwareConnectionProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Dbal;
 
 use Doctrine\DBAL\Connection;
diff --git a/src/Dbal/RegexSchemaAssetFilter.php b/src/Dbal/RegexSchemaAssetFilter.php
index 3acee8512..6b6f20fd1 100644
--- a/src/Dbal/RegexSchemaAssetFilter.php
+++ b/src/Dbal/RegexSchemaAssetFilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Dbal;
 
 use Doctrine\DBAL\Schema\AbstractAsset;
diff --git a/src/Dbal/SchemaAssetsFilterManager.php b/src/Dbal/SchemaAssetsFilterManager.php
index 5c17973f5..586f03a11 100644
--- a/src/Dbal/SchemaAssetsFilterManager.php
+++ b/src/Dbal/SchemaAssetsFilterManager.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Dbal;
 
 use Doctrine\DBAL\Schema\AbstractAsset;
diff --git a/src/DependencyInjection/Compiler/CacheCompatibilityPass.php b/src/DependencyInjection/Compiler/CacheCompatibilityPass.php
index d4869364b..46f15dc2b 100644
--- a/src/DependencyInjection/Compiler/CacheCompatibilityPass.php
+++ b/src/DependencyInjection/Compiler/CacheCompatibilityPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\Common\Cache\Psr6\CacheAdapter;
@@ -63,11 +65,11 @@ private function updateSecondLevelCache(ContainerBuilder $container, Definition
                     continue;
                 }
 
-                $regionDefinition = $container->getDefinition($factoryMethodCall[1][0]);
+                $regionDefinition = $container->getDefinition((string) $factoryMethodCall[1][0]);
 
                 // Get inner service for FileLock
                 if ($regionDefinition->getClass() === '%doctrine.orm.second_level_cache.filelock_region.class%') {
-                    $regionDefinition = $container->getDefinition($regionDefinition->getArgument(0));
+                    $regionDefinition = $container->getDefinition((string) $regionDefinition->getArgument(0));
                 }
 
                 // We don't know how to adjust custom region classes
diff --git a/src/DependencyInjection/Compiler/CacheSchemaSubscriberPass.php b/src/DependencyInjection/Compiler/CacheSchemaSubscriberPass.php
index a317d7a87..f576fe212 100644
--- a/src/DependencyInjection/Compiler/CacheSchemaSubscriberPass.php
+++ b/src/DependencyInjection/Compiler/CacheSchemaSubscriberPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Symfony\Component\Cache\Adapter\DoctrineDbalAdapter;
diff --git a/src/DependencyInjection/Compiler/DbalSchemaFilterPass.php b/src/DependencyInjection/Compiler/DbalSchemaFilterPass.php
index c1d3c7da7..5ee4199a9 100644
--- a/src/DependencyInjection/Compiler/DbalSchemaFilterPass.php
+++ b/src/DependencyInjection/Compiler/DbalSchemaFilterPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Symfony\Component\DependencyInjection\ChildDefinition;
diff --git a/src/DependencyInjection/Compiler/DoctrineOrmMappingsPass.php b/src/DependencyInjection/Compiler/DoctrineOrmMappingsPass.php
index 5dad51b54..ef7b798e6 100644
--- a/src/DependencyInjection/Compiler/DoctrineOrmMappingsPass.php
+++ b/src/DependencyInjection/Compiler/DoctrineOrmMappingsPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\ORM\Mapping\Driver\AnnotationDriver;
diff --git a/src/DependencyInjection/Compiler/EntityListenerPass.php b/src/DependencyInjection/Compiler/EntityListenerPass.php
index 23692e186..246560da7 100644
--- a/src/DependencyInjection/Compiler/EntityListenerPass.php
+++ b/src/DependencyInjection/Compiler/EntityListenerPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Mapping\ContainerEntityListenerResolver;
diff --git a/src/DependencyInjection/Compiler/IdGeneratorPass.php b/src/DependencyInjection/Compiler/IdGeneratorPass.php
index 9235e2f7a..22cb2700b 100644
--- a/src/DependencyInjection/Compiler/IdGeneratorPass.php
+++ b/src/DependencyInjection/Compiler/IdGeneratorPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Mapping\ClassMetadataFactory;
diff --git a/src/DependencyInjection/Compiler/MiddlewaresPass.php b/src/DependencyInjection/Compiler/MiddlewaresPass.php
index 054f444bb..4b5da3516 100644
--- a/src/DependencyInjection/Compiler/MiddlewaresPass.php
+++ b/src/DependencyInjection/Compiler/MiddlewaresPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Middleware\ConnectionNameAwareInterface;
diff --git a/src/DependencyInjection/Compiler/RemoveLoggingMiddlewarePass.php b/src/DependencyInjection/Compiler/RemoveLoggingMiddlewarePass.php
index 331e0cb0d..920e7854b 100644
--- a/src/DependencyInjection/Compiler/RemoveLoggingMiddlewarePass.php
+++ b/src/DependencyInjection/Compiler/RemoveLoggingMiddlewarePass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
diff --git a/src/DependencyInjection/Compiler/RemoveProfilerControllerPass.php b/src/DependencyInjection/Compiler/RemoveProfilerControllerPass.php
index e070cec9b..acecf5283 100644
--- a/src/DependencyInjection/Compiler/RemoveProfilerControllerPass.php
+++ b/src/DependencyInjection/Compiler/RemoveProfilerControllerPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Controller\ProfilerController;
diff --git a/src/DependencyInjection/Compiler/ServiceRepositoryCompilerPass.php b/src/DependencyInjection/Compiler/ServiceRepositoryCompilerPass.php
index d955ad181..857d7e5cc 100644
--- a/src/DependencyInjection/Compiler/ServiceRepositoryCompilerPass.php
+++ b/src/DependencyInjection/Compiler/ServiceRepositoryCompilerPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler;
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index 50a682813..115fb4d30 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection;
 
 use Doctrine\DBAL\Schema\LegacySchemaManagerFactory;
diff --git a/src/DependencyInjection/DoctrineExtension.php b/src/DependencyInjection/DoctrineExtension.php
index b4eb4fd9f..7e45b564d 100644
--- a/src/DependencyInjection/DoctrineExtension.php
+++ b/src/DependencyInjection/DoctrineExtension.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection;
 
 use Doctrine\Bundle\DoctrineBundle\Attribute\AsDoctrineListener;
diff --git a/src/DoctrineBundle.php b/src/DoctrineBundle.php
index 8d5013b96..b258059dc 100644
--- a/src/DoctrineBundle.php
+++ b/src/DoctrineBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle;
 
 use Closure;
diff --git a/src/EventSubscriber/EventSubscriberInterface.php b/src/EventSubscriber/EventSubscriberInterface.php
index 5cbae934b..550aac5fd 100644
--- a/src/EventSubscriber/EventSubscriberInterface.php
+++ b/src/EventSubscriber/EventSubscriberInterface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\EventSubscriber;
 
 use Doctrine\Common\EventSubscriber;
diff --git a/src/ManagerConfigurator.php b/src/ManagerConfigurator.php
index 89c95bbd0..ae7df5199 100644
--- a/src/ManagerConfigurator.php
+++ b/src/ManagerConfigurator.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Mapping/ClassMetadataCollection.php b/src/Mapping/ClassMetadataCollection.php
index bc708dbb1..f3bbcfd5c 100644
--- a/src/Mapping/ClassMetadataCollection.php
+++ b/src/Mapping/ClassMetadataCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use Doctrine\ORM\Mapping\ClassMetadata;
diff --git a/src/Mapping/ClassMetadataFactory.php b/src/Mapping/ClassMetadataFactory.php
index 2d250a0b7..5f70ca30c 100644
--- a/src/Mapping/ClassMetadataFactory.php
+++ b/src/Mapping/ClassMetadataFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use Doctrine\ORM\Id\AbstractIdGenerator;
diff --git a/src/Mapping/ContainerEntityListenerResolver.php b/src/Mapping/ContainerEntityListenerResolver.php
index 13c19d0d8..fc9dfe1e0 100644
--- a/src/Mapping/ContainerEntityListenerResolver.php
+++ b/src/Mapping/ContainerEntityListenerResolver.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use InvalidArgumentException;
diff --git a/src/Mapping/DisconnectedMetadataFactory.php b/src/Mapping/DisconnectedMetadataFactory.php
index e8803a118..fa572c0bd 100644
--- a/src/Mapping/DisconnectedMetadataFactory.php
+++ b/src/Mapping/DisconnectedMetadataFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use Doctrine\ORM\Mapping\ClassMetadata;
diff --git a/src/Mapping/EntityListenerServiceResolver.php b/src/Mapping/EntityListenerServiceResolver.php
index 03120ef90..487f673d5 100644
--- a/src/Mapping/EntityListenerServiceResolver.php
+++ b/src/Mapping/EntityListenerServiceResolver.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use Doctrine\ORM\Mapping\EntityListenerResolver;
diff --git a/src/Mapping/MappingDriver.php b/src/Mapping/MappingDriver.php
index c2ced4fd9..8b83f1a8e 100644
--- a/src/Mapping/MappingDriver.php
+++ b/src/Mapping/MappingDriver.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Mapping;
 
 use Doctrine\ORM\Mapping\ClassMetadata as OrmClassMetadata;
diff --git a/src/Middleware/BacktraceDebugDataHolder.php b/src/Middleware/BacktraceDebugDataHolder.php
index fd702afd3..4f1ef4777 100644
--- a/src/Middleware/BacktraceDebugDataHolder.php
+++ b/src/Middleware/BacktraceDebugDataHolder.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Middleware;
 
 use Symfony\Bridge\Doctrine\Middleware\Debug\DebugDataHolder;
diff --git a/src/Middleware/ConnectionNameAwareInterface.php b/src/Middleware/ConnectionNameAwareInterface.php
index 5bb2e41da..84158718e 100644
--- a/src/Middleware/ConnectionNameAwareInterface.php
+++ b/src/Middleware/ConnectionNameAwareInterface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Middleware;
 
 interface ConnectionNameAwareInterface
diff --git a/src/Middleware/DebugMiddleware.php b/src/Middleware/DebugMiddleware.php
index 18fca95fd..8c0571888 100644
--- a/src/Middleware/DebugMiddleware.php
+++ b/src/Middleware/DebugMiddleware.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Middleware;
 
 use Doctrine\DBAL\Driver as DriverInterface;
diff --git a/src/Middleware/IdleConnectionMiddleware.php b/src/Middleware/IdleConnectionMiddleware.php
index dd19cac8b..370a508bb 100644
--- a/src/Middleware/IdleConnectionMiddleware.php
+++ b/src/Middleware/IdleConnectionMiddleware.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Middleware;
 
 use ArrayObject;
diff --git a/src/Orm/ManagerRegistryAwareEntityManagerProvider.php b/src/Orm/ManagerRegistryAwareEntityManagerProvider.php
index d639d1eb1..f076666ac 100644
--- a/src/Orm/ManagerRegistryAwareEntityManagerProvider.php
+++ b/src/Orm/ManagerRegistryAwareEntityManagerProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Orm;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Registry.php b/src/Registry.php
index 9f3117bb8..8af79a29c 100644
--- a/src/Registry.php
+++ b/src/Registry.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Repository/ContainerRepositoryFactory.php b/src/Repository/ContainerRepositoryFactory.php
index 57d93d00a..37b3ba1af 100644
--- a/src/Repository/ContainerRepositoryFactory.php
+++ b/src/Repository/ContainerRepositoryFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Repository;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\ServiceRepositoryCompilerPass;
diff --git a/src/Repository/LazyServiceEntityRepository.php b/src/Repository/LazyServiceEntityRepository.php
index 5df8f09a1..48dbb8691 100644
--- a/src/Repository/LazyServiceEntityRepository.php
+++ b/src/Repository/LazyServiceEntityRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Repository;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Repository/RepositoryFactoryCompatibility.php b/src/Repository/RepositoryFactoryCompatibility.php
index f50ff764d..cd23ba2c1 100644
--- a/src/Repository/RepositoryFactoryCompatibility.php
+++ b/src/Repository/RepositoryFactoryCompatibility.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Repository;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/src/Repository/ServiceEntityRepository.php b/src/Repository/ServiceEntityRepository.php
index d4c59e2ec..48545d858 100644
--- a/src/Repository/ServiceEntityRepository.php
+++ b/src/Repository/ServiceEntityRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Repository;
 
 use Doctrine\ORM\EntityRepository;
diff --git a/src/Repository/ServiceEntityRepositoryInterface.php b/src/Repository/ServiceEntityRepositoryInterface.php
index fe9ce4df5..ddbb92384 100644
--- a/src/Repository/ServiceEntityRepositoryInterface.php
+++ b/src/Repository/ServiceEntityRepositoryInterface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Repository;
 
 /**
diff --git a/src/Twig/DoctrineExtension.php b/src/Twig/DoctrineExtension.php
index 854662551..4ad869830 100644
--- a/src/Twig/DoctrineExtension.php
+++ b/src/Twig/DoctrineExtension.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Twig;
 
 use Doctrine\SqlFormatter\HtmlHighlighter;
diff --git a/tests/Builder/BundleConfigurationBuilder.php b/tests/Builder/BundleConfigurationBuilder.php
index 7fd97819d..effc159d0 100644
--- a/tests/Builder/BundleConfigurationBuilder.php
+++ b/tests/Builder/BundleConfigurationBuilder.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Builder;
 
 class BundleConfigurationBuilder
diff --git a/tests/BundleTest.php b/tests/BundleTest.php
index 6b7bc1cb0..3f99b6913 100644
--- a/tests/BundleTest.php
+++ b/tests/BundleTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\DbalSchemaFilterPass;
diff --git a/tests/CacheSchemaSubscriberTest.php b/tests/CacheSchemaSubscriberTest.php
index b540a8d71..4018fe16c 100644
--- a/tests/CacheSchemaSubscriberTest.php
+++ b/tests/CacheSchemaSubscriberTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\CacheSchemaSubscriberPass;
diff --git a/tests/Command/CreateDatabaseDoctrineTest.php b/tests/Command/CreateDatabaseDoctrineTest.php
index 87e3a79eb..0c12d7139 100644
--- a/tests/Command/CreateDatabaseDoctrineTest.php
+++ b/tests/Command/CreateDatabaseDoctrineTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Command;
 
 use Doctrine\Bundle\DoctrineBundle\Command\CreateDatabaseDoctrineCommand;
diff --git a/tests/Command/DropDatabaseDoctrineTest.php b/tests/Command/DropDatabaseDoctrineTest.php
index 55ee29754..12028ae9d 100644
--- a/tests/Command/DropDatabaseDoctrineTest.php
+++ b/tests/Command/DropDatabaseDoctrineTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Command;
 
 use Doctrine\Bundle\DoctrineBundle\Command\DropDatabaseDoctrineCommand;
@@ -11,6 +13,7 @@
 use Doctrine\DBAL\Schema\DefaultSchemaManagerFactory;
 use Doctrine\Persistence\ManagerRegistry;
 use Generator;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Tester\CommandTester;
@@ -23,11 +26,8 @@
 /** @psalm-import-type Params from DriverManager */
 class DropDatabaseDoctrineTest extends TestCase
 {
-    /**
-     * @param array<string, bool> $options
-     *
-     * @dataProvider provideForceOption
-     */
+    /** @param array<string, bool> $options */
+    #[DataProvider('provideForceOption')]
     public function testExecute(array $options): void
     {
         $connectionName = 'default';
@@ -61,11 +61,8 @@ public function testExecute(array $options): void
         );
     }
 
-    /**
-     * @param array<string, bool> $options
-     *
-     * @dataProvider provideIncompatibleDriverOptions
-     */
+    /** @param array<string, bool> $options */
+    #[DataProvider('provideIncompatibleDriverOptions')]
     public function testItThrowsWhenUsingIfExistsWithAnIncompatibleDriver(array $options): void
     {
         $this->expectException(DBALException::class);
diff --git a/tests/Command/ImportMappingDoctrineCommandTest.php b/tests/Command/ImportMappingDoctrineCommandTest.php
index 04cb6d834..622dc5667 100644
--- a/tests/Command/ImportMappingDoctrineCommandTest.php
+++ b/tests/Command/ImportMappingDoctrineCommandTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Command;
 
 use Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures\TestKernel;
diff --git a/tests/Command/Proxy/InfoDoctrineCommandTest.php b/tests/Command/Proxy/InfoDoctrineCommandTest.php
index 3b97005fd..fdd34df62 100644
--- a/tests/Command/Proxy/InfoDoctrineCommandTest.php
+++ b/tests/Command/Proxy/InfoDoctrineCommandTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Command\Proxy;
 
 use Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures\TestKernel;
diff --git a/tests/ConnectionFactoryTest.php b/tests/ConnectionFactoryTest.php
index 85834fe2f..8792be29f 100644
--- a/tests/ConnectionFactoryTest.php
+++ b/tests/ConnectionFactoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\ConnectionFactory;
diff --git a/tests/ContainerTest.php b/tests/ContainerTest.php
index d3504081c..a2e5fffbf 100644
--- a/tests/ContainerTest.php
+++ b/tests/ContainerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\Orm\ManagerRegistryAwareEntityManagerProvider;
diff --git a/tests/DataCollector/DoctrineDataCollectorTest.php b/tests/DataCollector/DoctrineDataCollectorTest.php
index 5f3e05805..01de91bff 100644
--- a/tests/DataCollector/DoctrineDataCollectorTest.php
+++ b/tests/DataCollector/DoctrineDataCollectorTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DataCollector;
 
 use Doctrine\Bundle\DoctrineBundle\DataCollector\DoctrineDataCollector;
diff --git a/tests/Dbal/RegexSchemaAssetFilterTest.php b/tests/Dbal/RegexSchemaAssetFilterTest.php
index 2f7bb68d9..568397a10 100644
--- a/tests/Dbal/RegexSchemaAssetFilterTest.php
+++ b/tests/Dbal/RegexSchemaAssetFilterTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Dbal;
 
 use Doctrine\Bundle\DoctrineBundle\Dbal\RegexSchemaAssetFilter;
diff --git a/tests/Dbal/SchemaAssetsFilterManagerTest.php b/tests/Dbal/SchemaAssetsFilterManagerTest.php
index 0b161a39a..a9fa62cef 100644
--- a/tests/Dbal/SchemaAssetsFilterManagerTest.php
+++ b/tests/Dbal/SchemaAssetsFilterManagerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Dbal;
 
 use Doctrine\Bundle\DoctrineBundle\Dbal\RegexSchemaAssetFilter;
diff --git a/tests/DependencyInjection/AbstractDoctrineExtensionTestCase.php b/tests/DependencyInjection/AbstractDoctrineExtensionTestCase.php
index ede267eb1..06f9b3cfc 100644
--- a/tests/DependencyInjection/AbstractDoctrineExtensionTestCase.php
+++ b/tests/DependencyInjection/AbstractDoctrineExtensionTestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\Bundle\DoctrineBundle\Dbal\BlacklistSchemaAssetFilter;
diff --git a/tests/DependencyInjection/Compiler/CacheCompatibilityPassTest.php b/tests/DependencyInjection/Compiler/CacheCompatibilityPassTest.php
index f0f51fed4..2ced4dcdd 100644
--- a/tests/DependencyInjection/Compiler/CacheCompatibilityPassTest.php
+++ b/tests/DependencyInjection/Compiler/CacheCompatibilityPassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures\TestKernel;
diff --git a/tests/DependencyInjection/Compiler/EntityListenerPassTest.php b/tests/DependencyInjection/Compiler/EntityListenerPassTest.php
index ffb2e225a..5e1d4f6ca 100644
--- a/tests/DependencyInjection/Compiler/EntityListenerPassTest.php
+++ b/tests/DependencyInjection/Compiler/EntityListenerPassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\EntityListenerPass;
@@ -8,6 +10,7 @@
 use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\ORM\Events;
 use Doctrine\ORM\Tools\AttachEntityListenersListener;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 use stdClass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -26,7 +29,7 @@ public static function setUpBeforeClass(): void
         self::markTestSkipped('This test requires ORM');
     }
 
-    /** @dataProvider provideEvents */
+    #[DataProvider('provideEvents')]
     public function testEntityListenersAreRegistered(string|null $event, string|null $method, string|null $expectedMethod): void
     {
         $container = new ContainerBuilder();
diff --git a/tests/DependencyInjection/Compiler/IdGeneratorPassTest.php b/tests/DependencyInjection/Compiler/IdGeneratorPassTest.php
index c220bbac3..8171295ca 100644
--- a/tests/DependencyInjection/Compiler/IdGeneratorPassTest.php
+++ b/tests/DependencyInjection/Compiler/IdGeneratorPassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\CacheCompatibilityPass;
diff --git a/tests/DependencyInjection/Compiler/MiddlewarePassTest.php b/tests/DependencyInjection/Compiler/MiddlewarePassTest.php
index a840312a2..a34332f97 100644
--- a/tests/DependencyInjection/Compiler/MiddlewarePassTest.php
+++ b/tests/DependencyInjection/Compiler/MiddlewarePassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\Attribute\AsMiddleware;
@@ -9,6 +11,7 @@
 use Doctrine\Bundle\DoctrineBundle\Middleware\IdleConnectionMiddleware;
 use Doctrine\DBAL\Driver;
 use Doctrine\DBAL\Driver\Middleware;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 use Psr\Log\NullLogger;
 use Symfony\Bridge\Doctrine\Middleware\IdleConnection\Listener;
@@ -33,7 +36,7 @@ public static function provideAddMiddleware(): array
         ];
     }
 
-    /** @dataProvider provideAddMiddleware */
+    #[DataProvider('provideAddMiddleware')]
     public function testAddMiddlewareWithExplicitTag(string $middlewareClass, bool $connectionNameAware): void
     {
         $container = $this->createContainer(static function (ContainerBuilder $container) use ($middlewareClass) {
@@ -105,11 +108,8 @@ public static function provideAddMiddlewareWithAttributeForAutoconfiguration():
         ];
     }
 
-    /**
-     * @param class-string $className
-     *
-     * @dataProvider provideAddMiddlewareWithAttributeForAutoconfiguration
-     */
+    /** @param class-string $className */
+    #[DataProvider('provideAddMiddlewareWithAttributeForAutoconfiguration')]
     public function testAddMiddlewareWithAttributeForAutoconfiguration(string $className, bool $registeredOnConn1): void
     {
         $container = $this->createContainer(static function (ContainerBuilder $container) use ($className) {
@@ -135,7 +135,7 @@ public function testAddMiddlewareWithAttributeForAutoconfiguration(string $class
         $this->assertMiddlewareInjected($container, 'conn2', $className);
     }
 
-    /** @dataProvider provideAddMiddleware */
+    #[DataProvider('provideAddMiddleware')]
     public function testDontAddMiddlewareWhenDbalIsNotUsed(string $middlewareClass): void
     {
         $container = $this->createContainer(static function (ContainerBuilder $container) use ($middlewareClass) {
diff --git a/tests/DependencyInjection/Compiler/RemoveLoggingMiddlewarePassTest.php b/tests/DependencyInjection/Compiler/RemoveLoggingMiddlewarePassTest.php
index eab5cc6f4..cdbca1a14 100644
--- a/tests/DependencyInjection/Compiler/RemoveLoggingMiddlewarePassTest.php
+++ b/tests/DependencyInjection/Compiler/RemoveLoggingMiddlewarePassTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Compiler;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\RemoveLoggingMiddlewarePass;
diff --git a/tests/DependencyInjection/DoctrineExtensionTest.php b/tests/DependencyInjection/DoctrineExtensionTest.php
index 4915c919b..f5b6097f2 100644
--- a/tests/DependencyInjection/DoctrineExtensionTest.php
+++ b/tests/DependencyInjection/DoctrineExtensionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Closure;
@@ -296,11 +298,8 @@ public static function getAutomappingConfigurations(): array
         ];
     }
 
-    /**
-     * @param mixed[][][][] $entityManagers
-     *
-     * @dataProvider getAutomappingConfigurations
-     */
+    /** @param mixed[][][][] $entityManagers */
+    #[DataProvider('getAutomappingConfigurations')]
     public static function testAutomapping(array $entityManagers): void
     {
         if (! interface_exists(EntityManagerInterface::class)) {
@@ -1042,11 +1041,8 @@ public function testInvalidCacheConfiguration(): void
         $extension->load([$config], $container);
     }
 
-    /**
-     * @param array{pool?: string, type: ?string, id?: string} $cacheConfig
-     *
-     * @dataProvider cacheConfigurationProvider
-     */
+    /** @param array{pool?: string, type: ?string, id?: string} $cacheConfig */
+    #[DataProvider('cacheConfigurationProvider')]
     public function testCacheConfiguration(string $expectedAliasName, string $expectedTarget, string $cacheName, array $cacheConfig): void
     {
         if (! interface_exists(EntityManagerInterface::class)) {
@@ -1166,7 +1162,7 @@ public static function provideAttributeExcludedFromContainer(): array
         ];
     }
 
-    /** @dataProvider provideAttributeExcludedFromContainer */
+    #[DataProvider('provideAttributeExcludedFromContainer')]
     public function testEntityAttributeExcludesFromContainer(string $class)
     {
         if (! interface_exists(EntityManagerInterface::class)) {
diff --git a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/AttributesBundle.php b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/AttributesBundle.php
index 9d7488cb3..8ee70e6cf 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/AttributesBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/AttributesBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\AttributesBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestClass.php b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestClass.php
index eff4914ab..07e2f00c4 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestClass.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestClass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\AttributesBundle\Entity;
 
 class TestClass
diff --git a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestCustomIdGeneratorEntity.php b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestCustomIdGeneratorEntity.php
index 0fde1f62f..db9f75fe3 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestCustomIdGeneratorEntity.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/AttributesBundle/Entity/TestCustomIdGeneratorEntity.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\AttributesBundle\Entity;
 
 use Doctrine\DBAL\Types\Types;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/Entity/TestClass.php b/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/Entity/TestClass.php
index e64f13350..c62ef9332 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/Entity/TestClass.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/Entity/TestClass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\NewXmlBundle\Entity;
 
 class TestClass
diff --git a/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/NewXmlBundle.php b/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/NewXmlBundle.php
index e8f0984b5..60a299204 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/NewXmlBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/NewXmlBundle/src/NewXmlBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\NewXmlBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomClassRepoEntity.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomClassRepoEntity.php
index b44c3e965..178563886 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomClassRepoEntity.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomClassRepoEntity.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle\Entity;
 
 use Doctrine\DBAL\Types\Types;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomServiceRepoEntity.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomServiceRepoEntity.php
index 7fe53625a..edb3a3130 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomServiceRepoEntity.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestCustomServiceRepoEntity.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle\Entity;
 
 use Doctrine\DBAL\Types\Types;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestDefaultRepoEntity.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestDefaultRepoEntity.php
index c32021b1b..5381d99cb 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestDefaultRepoEntity.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Entity/TestDefaultRepoEntity.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle\Entity;
 
 use Doctrine\DBAL\Types\Types;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomClassRepoRepository.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomClassRepoRepository.php
index 0c33a76ea..064edf569 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomClassRepoRepository.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomClassRepoRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle\Repository;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomServiceRepoRepository.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomServiceRepoRepository.php
index 22acb367a..fe7f56b64 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomServiceRepoRepository.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/Repository/TestCustomServiceRepoRepository.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle\Repository;
 
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/RepositoryServiceBundle.php b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/RepositoryServiceBundle.php
index 12cd66fc0..fbd47da6a 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/RepositoryServiceBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/RepositoryServiceBundle/RepositoryServiceBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\RepositoryServiceBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/AnnotationsBundle.php b/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/AnnotationsBundle.php
index 641edc122..b3314df0f 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/AnnotationsBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/AnnotationsBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\Vendor\AnnotationsBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/Entity/TestClass.php b/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/Entity/TestClass.php
index 2914a9252..736252475 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/Entity/TestClass.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/Vendor/AnnotationsBundle/Entity/TestClass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\Vendor\AnnotationsBundle\Entity;
 
 class TestClass
diff --git a/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/Entity/TestClass.php b/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/Entity/TestClass.php
index 9a2c597f9..4991815ac 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/Entity/TestClass.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/Entity/TestClass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\XmlBundle\Entity;
 
 class TestClass
diff --git a/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/XmlBundle.php b/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/XmlBundle.php
index 3bdd9873e..935462716 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/XmlBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/XmlBundle/XmlBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\XmlBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/Entity/TestClass.php b/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/Entity/TestClass.php
index 059c0d631..b394e406e 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/Entity/TestClass.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/Entity/TestClass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\YamlBundle\Entity;
 
 class TestClass
diff --git a/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/YamlBundle.php b/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/YamlBundle.php
index c89784c34..164a4b73c 100644
--- a/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/YamlBundle.php
+++ b/tests/DependencyInjection/Fixtures/Bundles/YamlBundle/YamlBundle.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Fixtures\Bundles\YamlBundle;
 
 use Symfony\Component\HttpKernel\Bundle\Bundle;
diff --git a/tests/DependencyInjection/Fixtures/CustomEntityListenerServiceResolver.php b/tests/DependencyInjection/Fixtures/CustomEntityListenerServiceResolver.php
index ae031bbbf..e62ff54e8 100644
--- a/tests/DependencyInjection/Fixtures/CustomEntityListenerServiceResolver.php
+++ b/tests/DependencyInjection/Fixtures/CustomEntityListenerServiceResolver.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\Bundle\DoctrineBundle\Mapping\EntityListenerServiceResolver;
diff --git a/tests/DependencyInjection/Fixtures/CustomIdGenerator.php b/tests/DependencyInjection/Fixtures/CustomIdGenerator.php
index c5b1c9bcf..52df3471e 100644
--- a/tests/DependencyInjection/Fixtures/CustomIdGenerator.php
+++ b/tests/DependencyInjection/Fixtures/CustomIdGenerator.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/tests/DependencyInjection/Fixtures/DbalTestKernel.php b/tests/DependencyInjection/Fixtures/DbalTestKernel.php
index 984e33572..176dde94c 100644
--- a/tests/DependencyInjection/Fixtures/DbalTestKernel.php
+++ b/tests/DependencyInjection/Fixtures/DbalTestKernel.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\Bundle\DoctrineBundle\DoctrineBundle;
diff --git a/tests/DependencyInjection/Fixtures/InvokableEntityListener.php b/tests/DependencyInjection/Fixtures/InvokableEntityListener.php
index 2ea134d1a..c7fd15db8 100644
--- a/tests/DependencyInjection/Fixtures/InvokableEntityListener.php
+++ b/tests/DependencyInjection/Fixtures/InvokableEntityListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 final class InvokableEntityListener
diff --git a/tests/DependencyInjection/Fixtures/Php8EntityListener.php b/tests/DependencyInjection/Fixtures/Php8EntityListener.php
index a4c925ca7..2f92e39d7 100644
--- a/tests/DependencyInjection/Fixtures/Php8EntityListener.php
+++ b/tests/DependencyInjection/Fixtures/Php8EntityListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\Bundle\DoctrineBundle\Attribute\AsEntityListener;
diff --git a/tests/DependencyInjection/Fixtures/Php8EventListener.php b/tests/DependencyInjection/Fixtures/Php8EventListener.php
index 9c18753dd..7030fdd42 100644
--- a/tests/DependencyInjection/Fixtures/Php8EventListener.php
+++ b/tests/DependencyInjection/Fixtures/Php8EventListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\Bundle\DoctrineBundle\Attribute\AsDoctrineListener;
diff --git a/tests/DependencyInjection/Fixtures/TestKernel.php b/tests/DependencyInjection/Fixtures/TestKernel.php
index 35f8ba470..180caadd8 100644
--- a/tests/DependencyInjection/Fixtures/TestKernel.php
+++ b/tests/DependencyInjection/Fixtures/TestKernel.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures;
 
 use Doctrine\Bundle\DoctrineBundle\DoctrineBundle;
diff --git a/tests/DependencyInjection/TestDatetimeFunction.php b/tests/DependencyInjection/TestDatetimeFunction.php
index dbdb6f5fc..5a6867574 100644
--- a/tests/DependencyInjection/TestDatetimeFunction.php
+++ b/tests/DependencyInjection/TestDatetimeFunction.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\ORM\Query\AST\Functions\FunctionNode;
diff --git a/tests/DependencyInjection/TestFilter.php b/tests/DependencyInjection/TestFilter.php
index f8921e126..467d81edf 100644
--- a/tests/DependencyInjection/TestFilter.php
+++ b/tests/DependencyInjection/TestFilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\ORM\Mapping\ClassMetadata;
diff --git a/tests/DependencyInjection/TestNumericFunction.php b/tests/DependencyInjection/TestNumericFunction.php
index 32e69d4e2..3645054cc 100644
--- a/tests/DependencyInjection/TestNumericFunction.php
+++ b/tests/DependencyInjection/TestNumericFunction.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\ORM\Query\AST\Functions\FunctionNode;
diff --git a/tests/DependencyInjection/TestStringFunction.php b/tests/DependencyInjection/TestStringFunction.php
index 933f38a0c..efa860d0d 100644
--- a/tests/DependencyInjection/TestStringFunction.php
+++ b/tests/DependencyInjection/TestStringFunction.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\ORM\Query\AST\Functions\FunctionNode;
diff --git a/tests/DependencyInjection/TestType.php b/tests/DependencyInjection/TestType.php
index dea971abf..bcd986ce4 100644
--- a/tests/DependencyInjection/TestType.php
+++ b/tests/DependencyInjection/TestType.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Doctrine\DBAL\Platforms\AbstractPlatform;
diff --git a/tests/DependencyInjection/XMLSchemaTest.php b/tests/DependencyInjection/XMLSchemaTest.php
index 3dd8a10b0..c2b9aea9e 100644
--- a/tests/DependencyInjection/XMLSchemaTest.php
+++ b/tests/DependencyInjection/XMLSchemaTest.php
@@ -1,9 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use DirectoryIterator;
 use DOMDocument;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 
 use function basename;
@@ -27,7 +30,7 @@ public static function dataValidateSchemaFiles(): array
         return $schemaFiles;
     }
 
-    /** @dataProvider dataValidateSchemaFiles */
+    #[DataProvider('dataValidateSchemaFiles')]
     public function testValidateSchema(string $file): void
     {
         $found = false;
diff --git a/tests/DependencyInjection/XmlDoctrineExtensionTest.php b/tests/DependencyInjection/XmlDoctrineExtensionTest.php
index 44f59016b..3230d499d 100644
--- a/tests/DependencyInjection/XmlDoctrineExtensionTest.php
+++ b/tests/DependencyInjection/XmlDoctrineExtensionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Symfony\Component\Config\FileLocator;
diff --git a/tests/DependencyInjection/YamlDoctrineExtensionTest.php b/tests/DependencyInjection/YamlDoctrineExtensionTest.php
index cafde6593..9ee470956 100644
--- a/tests/DependencyInjection/YamlDoctrineExtensionTest.php
+++ b/tests/DependencyInjection/YamlDoctrineExtensionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection;
 
 use Symfony\Component\Config\FileLocator;
diff --git a/tests/LazyLoadingEntityManagerInterface.php b/tests/LazyLoadingEntityManagerInterface.php
index 70da6c467..ef38b328b 100644
--- a/tests/LazyLoadingEntityManagerInterface.php
+++ b/tests/LazyLoadingEntityManagerInterface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/tests/LazyObjectEntityManagerInterface.php b/tests/LazyObjectEntityManagerInterface.php
index d9cd66af5..d93b0b0d4 100644
--- a/tests/LazyObjectEntityManagerInterface.php
+++ b/tests/LazyObjectEntityManagerInterface.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\ORM\EntityManagerInterface;
diff --git a/tests/LockStoreSchemaListenerTest.php b/tests/LockStoreSchemaListenerTest.php
index 8361c3a57..d7055c3db 100644
--- a/tests/LockStoreSchemaListenerTest.php
+++ b/tests/LockStoreSchemaListenerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\DoctrineExtension;
diff --git a/tests/Mapping/ContainerEntityListenerResolverTest.php b/tests/Mapping/ContainerEntityListenerResolverTest.php
index cdfd8651f..571a0e412 100644
--- a/tests/Mapping/ContainerEntityListenerResolverTest.php
+++ b/tests/Mapping/ContainerEntityListenerResolverTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Mapping;
 
 use Doctrine\Bundle\DoctrineBundle\Mapping\ContainerEntityListenerResolver;
diff --git a/tests/Mapping/DisconnectedMetadataFactoryTest.php b/tests/Mapping/DisconnectedMetadataFactoryTest.php
index 06f3f4411..3c13605ad 100644
--- a/tests/Mapping/DisconnectedMetadataFactoryTest.php
+++ b/tests/Mapping/DisconnectedMetadataFactoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Mapping;
 
 use Doctrine\Bundle\DoctrineBundle\Mapping\ClassMetadataCollection;
diff --git a/tests/Middleware/BacktraceDebugDataHolderTest.php b/tests/Middleware/BacktraceDebugDataHolderTest.php
index 9053ce06c..bd60e0c00 100644
--- a/tests/Middleware/BacktraceDebugDataHolderTest.php
+++ b/tests/Middleware/BacktraceDebugDataHolderTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Middleware;
 
 use Doctrine\Bundle\DoctrineBundle\Middleware\BacktraceDebugDataHolder;
diff --git a/tests/Middleware/DebugMiddlewareTest.php b/tests/Middleware/DebugMiddlewareTest.php
index e2917c357..469c57fdc 100644
--- a/tests/Middleware/DebugMiddlewareTest.php
+++ b/tests/Middleware/DebugMiddlewareTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Middleware;
 
 use Doctrine\Bundle\DoctrineBundle\Middleware\BacktraceDebugDataHolder;
diff --git a/tests/Middleware/IdleConnectionMiddlewareTest.php b/tests/Middleware/IdleConnectionMiddlewareTest.php
index 0f7a6a01f..bd90ad9ca 100644
--- a/tests/Middleware/IdleConnectionMiddlewareTest.php
+++ b/tests/Middleware/IdleConnectionMiddlewareTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Middleware;
 
 use ArrayObject;
diff --git a/tests/ProfilerTest.php b/tests/ProfilerTest.php
index a77dbbf10..3e9e30318 100644
--- a/tests/ProfilerTest.php
+++ b/tests/ProfilerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DataCollector\DoctrineDataCollector;
diff --git a/tests/RegistryTest.php b/tests/RegistryTest.php
index 0f4a0c2bb..735acd1c7 100644
--- a/tests/RegistryTest.php
+++ b/tests/RegistryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Closure;
diff --git a/tests/Repository/ContainerRepositoryFactoryTest.php b/tests/Repository/ContainerRepositoryFactoryTest.php
index b11e4b6a6..46f949c79 100644
--- a/tests/Repository/ContainerRepositoryFactoryTest.php
+++ b/tests/Repository/ContainerRepositoryFactoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Repository;
 
 use Doctrine\Bundle\DoctrineBundle\Repository\ContainerRepositoryFactory;
diff --git a/tests/Repository/ServiceEntityRepositoryTest.php b/tests/Repository/ServiceEntityRepositoryTest.php
index 2457e2bdc..a1aab4783 100644
--- a/tests/Repository/ServiceEntityRepositoryTest.php
+++ b/tests/Repository/ServiceEntityRepositoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Repository;
 
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
diff --git a/tests/ServiceRepositoryTest.php b/tests/ServiceRepositoryTest.php
index d114c907e..81fedc0d7 100644
--- a/tests/ServiceRepositoryTest.php
+++ b/tests/ServiceRepositoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\CacheCompatibilityPass;
diff --git a/tests/TestCase.php b/tests/TestCase.php
index bb5298912..8d9b6c4cc 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\CacheCompatibilityPass;
diff --git a/tests/TestCaseAllPublicCompilerPass.php b/tests/TestCaseAllPublicCompilerPass.php
index db6d3a097..a3469c687 100644
--- a/tests/TestCaseAllPublicCompilerPass.php
+++ b/tests/TestCaseAllPublicCompilerPass.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
diff --git a/tests/Twig/DoctrineExtensionTest.php b/tests/Twig/DoctrineExtensionTest.php
index 80990de28..f63796f78 100644
--- a/tests/Twig/DoctrineExtensionTest.php
+++ b/tests/Twig/DoctrineExtensionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests\Twig;
 
 use Doctrine\Bundle\DoctrineBundle\Twig\DoctrineExtension;
diff --git a/tests/UrlOverrideTest.php b/tests/UrlOverrideTest.php
index ce57e84b2..dfe5f03e8 100644
--- a/tests/UrlOverrideTest.php
+++ b/tests/UrlOverrideTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Doctrine\Bundle\DoctrineBundle\Tests;
 
 use Doctrine\Bundle\DoctrineBundle\Tests\DependencyInjection\Fixtures\DbalTestKernel;
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
deleted file mode 100644
index b3e498031..000000000
--- a/tests/bootstrap.php
+++ /dev/null
@@ -1,7 +0,0 @@
-<?php
-
-use Doctrine\Deprecations\Deprecation;
-
-require_once 'vendor/autoload.php';
-
-Deprecation::enableWithTriggerError();