diff --git a/composer.json b/composer.json
index 04e378caf..f7f73da00 100644
--- a/composer.json
+++ b/composer.json
@@ -45,10 +45,10 @@
     "require-dev": {
         "doctrine/coding-standard": "^14",
         "doctrine/orm": "^3.4.4",
-        "phpstan/phpstan": "2.1.1",
+        "phpstan/phpstan": "^2.1.13",
         "phpstan/phpstan-phpunit": "2.0.3",
         "phpstan/phpstan-strict-rules": "^2",
-        "phpstan/phpstan-symfony": "^2.0",
+        "phpstan/phpstan-symfony": "^2.0.9",
         "phpunit/phpunit": "^12.3.10",
         "psr/log": "^3.0",
         "symfony/doctrine-messenger": "^6.4 || ^7.0 || ^8.0",
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 36d34a370..692096747 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -1,7 +1,7 @@
 includes:
     - vendor/phpstan/phpstan-symfony/extension.neon
 parameters:
-   level: 7
+   level: 8
    reportUnmatchedIgnoredErrors: true
    paths:
       - config
diff --git a/src/Controller/ProfilerController.php b/src/Controller/ProfilerController.php
index 3ea193134..69f62f997 100644
--- a/src/Controller/ProfilerController.php
+++ b/src/Controller/ProfilerController.php
@@ -40,7 +40,11 @@ public function explainAction(string $token, string $connectionName, int $query)
     {
         $this->profiler->disable();
 
-        $profile   = $this->profiler->loadProfile($token);
+        $profile = $this->profiler->loadProfile($token);
+        if ($profile === null) {
+            return new Response('Profile not found.', 404);
+        }
+
         $collector = $profile->getCollector('db');
 
         assert($collector instanceof DoctrineDataCollector);
diff --git a/src/DataCollector/DoctrineDataCollector.php b/src/DataCollector/DoctrineDataCollector.php
index 88e436cc2..55f63fc70 100644
--- a/src/DataCollector/DoctrineDataCollector.php
+++ b/src/DataCollector/DoctrineDataCollector.php
@@ -55,7 +55,7 @@
  *    types: ?array<array-key, Type|int|string|null>,
  *    count: int,
  *    index: int,
- *    executionPercent?: float
+ *    executionPercent: float
  * }
  * @phpstan-type GroupedQueriesType = array<string, array<int, GroupedQueryItemType>>
  * @phpstan-property DataType $data
@@ -77,6 +77,10 @@ public function __construct(
         private readonly bool $shouldValidateSchema = true,
         DebugDataHolder|null $debugDataHolder = null,
     ) {
+        if ($debugDataHolder === null) {
+            $debugDataHolder = new DebugDataHolder();
+        }
+
         parent::__construct($registry, $debugDataHolder);
     }
 
@@ -304,14 +308,13 @@ public function getGroupedQueries(): array
 
                 return $a['executionMS'] < $b['executionMS'] ? 1 : -1;
             });
-            $this->groupedQueries[$connection] = $connectionGroupedQueries;
-        }
 
-        foreach ($this->groupedQueries as $connection => $queries) {
-            foreach ($queries as $i => $query) {
-                $this->groupedQueries[$connection][$i]['executionPercent'] =
+            foreach ($connectionGroupedQueries as $i => $query) {
+                $connectionGroupedQueries[$i]['executionPercent'] =
                     $this->executionTimePercentage($query['executionMS'], $totalExecutionMS);
             }
+
+            $this->groupedQueries[$connection] = $connectionGroupedQueries;
         }
 
         return $this->groupedQueries;
diff --git a/src/DependencyInjection/Compiler/MiddlewaresPass.php b/src/DependencyInjection/Compiler/MiddlewaresPass.php
index df884b043..1502d07d6 100644
--- a/src/DependencyInjection/Compiler/MiddlewaresPass.php
+++ b/src/DependencyInjection/Compiler/MiddlewaresPass.php
@@ -64,7 +64,8 @@ public function process(ContainerBuilder $container): void
                 );
                 $middlewareRefs[$id] = [new Reference($childId), ++$i];
 
-                if (! is_subclass_of($abstractDef->getClass(), ConnectionNameAwareInterface::class)) {
+                $class = $abstractDef->getClass();
+                if ($class === null || ! is_subclass_of($class, ConnectionNameAwareInterface::class)) {
                     continue;
                 }
 
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index f2591c7b1..b74499458 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -67,7 +67,6 @@ private function addDbalSection(ArrayNodeDefinition $node): void
         // Key that should not be rewritten to the connection config
         $excludedKeys = ['default_connection' => true, 'driver_schemes' => true, 'driver_scheme' => true, 'types' => true, 'type' => true];
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->children()
             ->arrayNode('dbal')
@@ -167,7 +166,6 @@ private function getDbalConnectionsNode(): ArrayNodeDefinition
 
         $this->configureDbalDriverNode($connectionNode);
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $connectionNode
             ->fixXmlConfig('option')
             ->fixXmlConfig('mapping_type')
@@ -214,7 +212,6 @@ private function getDbalConnectionsNode(): ArrayNodeDefinition
                 ->scalarNode('result_cache')->end()
             ->end();
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $replicaNode = $connectionNode
             ->children()
                 ->arrayNode('replicas')
@@ -232,7 +229,6 @@ private function getDbalConnectionsNode(): ArrayNodeDefinition
      */
     private function configureDbalDriverNode(ArrayNodeDefinition $node): void
     {
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->validate()
             ->always(static function (array $values) {
@@ -370,7 +366,6 @@ private function addOrmSection(ArrayNodeDefinition $node): void
             'controller_resolver' => true,
         ];
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->children()
                 ->arrayNode('orm')
@@ -518,7 +513,6 @@ private function getOrmEntityListenersNode(): NodeDefinition
             return ['entities' => $entities];
         };
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->beforeNormalization()
                 // Yaml normalization
@@ -564,7 +558,6 @@ private function getOrmEntityManagersNode(): ArrayNodeDefinition
         $treeBuilder = new TreeBuilder('entity_managers');
         $node        = $treeBuilder->getRootNode();
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->requiresAtLeastOneElement()
             ->useAttributeAsKey('name')
@@ -739,7 +732,6 @@ private function getOrmCacheDriverNode(string $name): ArrayNodeDefinition
         $treeBuilder = new TreeBuilder($name);
         $node        = $treeBuilder->getRootNode();
 
-        /** @phpstan-ignore class.notFound (Phpstan Symfony extension does not know yet how to deal with these) */
         $node
             ->beforeNormalization()
                 ->ifString()
diff --git a/src/DependencyInjection/DoctrineExtension.php b/src/DependencyInjection/DoctrineExtension.php
index 92087b024..9bd55a435 100644
--- a/src/DependencyInjection/DoctrineExtension.php
+++ b/src/DependencyInjection/DoctrineExtension.php
@@ -171,9 +171,11 @@ private function loadMappingInformation(array $objectManager, ContainerBuilder $
                     throw new InvalidArgumentException(sprintf('Bundle "%s" does not exist or it is not enabled.', $mappingName));
                 }
 
-                $mappingConfig = $this->getMappingDriverBundleConfigDefaults($mappingConfig, $bundle, $container, $bundleMetadata['path']);
-                if (! $mappingConfig) {
-                    continue;
+                if ($bundleMetadata !== null) {
+                    $mappingConfig = $this->getMappingDriverBundleConfigDefaults($mappingConfig, $bundle, $container, $bundleMetadata['path']);
+                    if (! $mappingConfig) {
+                        continue;
+                    }
                 }
             } elseif (! $mappingConfig['type']) {
                 $mappingConfig['type'] = 'attribute';
diff --git a/src/DoctrineBundle.php b/src/DoctrineBundle.php
index e27277708..02d6856cd 100644
--- a/src/DoctrineBundle.php
+++ b/src/DoctrineBundle.php
@@ -78,6 +78,10 @@ public function process(ContainerBuilder $container): void
 
     public function shutdown(): void
     {
+        if ($this->container === null) {
+            return;
+        }
+
         // Clear all entity managers to clear references to entities for GC
         if ($this->container->hasParameter('doctrine.entity_managers')) {
             foreach ($this->container->getParameter('doctrine.entity_managers') as $id) {
diff --git a/src/Twig/DoctrineExtension.php b/src/Twig/DoctrineExtension.php
index ca466250b..bcf33af5d 100644
--- a/src/Twig/DoctrineExtension.php
+++ b/src/Twig/DoctrineExtension.php
@@ -7,6 +7,7 @@
 use Doctrine\SqlFormatter\HtmlHighlighter;
 use Doctrine\SqlFormatter\NullHighlighter;
 use Doctrine\SqlFormatter\SqlFormatter;
+use RuntimeException;
 use Stringable;
 use Symfony\Component\VarDumper\Cloner\Data;
 use Twig\Extension\AbstractExtension;
@@ -24,11 +25,15 @@
 use function is_array;
 use function is_bool;
 use function is_string;
+use function preg_last_error;
 use function preg_match;
 use function preg_replace_callback;
+use function sprintf;
 use function strtoupper;
 use function substr;
 
+use const PREG_NO_ERROR;
+
 /**
  * This class contains the needed functions in order to do the query highlighting
  *
@@ -116,7 +121,7 @@ public function replaceQueryParameters(string $query, array|Data $parameters): s
 
         $i = 0;
 
-        return preg_replace_callback(
+        $result = preg_replace_callback(
             '/(?<!\?)\?(?!\?)|(?<!:)(:[a-z0-9_]+)/i',
             static function (array $matches) use ($parameters, &$i): string {
                 $key = substr($matches[0], 1);
@@ -133,6 +138,17 @@ static function (array $matches) use ($parameters, &$i): string {
             },
             $query,
         );
+
+        $pregError = preg_last_error();
+        if ($pregError !== PREG_NO_ERROR) {
+            throw new RuntimeException(sprintf('Failed to replace query parameters: PCRE error %d', $pregError));
+        }
+
+        if ($result === null) {
+            throw new RuntimeException('Failed to replace query parameters: unexpected null result');
+        }
+
+        return $result;
     }
 
     public function prettifySql(string $sql): string
diff --git a/tests/Command/DropDatabaseDoctrineTest.php b/tests/Command/DropDatabaseDoctrineTest.php
index c691867ef..9311e2d8b 100644
--- a/tests/Command/DropDatabaseDoctrineTest.php
+++ b/tests/Command/DropDatabaseDoctrineTest.php
@@ -134,7 +134,7 @@ public static function provideIncompatibleDriverOptions(): Generator
     }
 
     /**
-     * @param list<mixed> $params Connection parameters
+     * @param array{url?: string, path?: string, driver: string} $params Connection parameters
      * @psalm-param Params $params
      *
      * @return Stub&Container
diff --git a/tests/DataCollector/DoctrineDataCollectorTest.php b/tests/DataCollector/DoctrineDataCollectorTest.php
index 6fd7593b3..8541f7e2d 100644
--- a/tests/DataCollector/DoctrineDataCollectorTest.php
+++ b/tests/DataCollector/DoctrineDataCollectorTest.php
@@ -146,9 +146,11 @@ public function testGetGroupedQueries(): void
      */
     private function createEntityMetadata(string $entityFQCN): ClassMetadata
     {
-        $metadata            = new ClassMetadata($entityFQCN);
-        $metadata->name      = $entityFQCN;
-        $metadata->reflClass = new ReflectionClass('stdClass');
+        $metadata       = new ClassMetadata($entityFQCN);
+        $metadata->name = $entityFQCN;
+        /** @var ReflectionClass<object> $stdClassReflection */
+        $stdClassReflection  = new ReflectionClass('stdClass');
+        $metadata->reflClass = $stdClassReflection;
 
         return $metadata;
     }
diff --git a/tests/DependencyInjection/XMLSchemaTest.php b/tests/DependencyInjection/XMLSchemaTest.php
index c2b9aea9e..37410b578 100644
--- a/tests/DependencyInjection/XMLSchemaTest.php
+++ b/tests/DependencyInjection/XMLSchemaTest.php
@@ -41,28 +41,34 @@ public function testValidateSchema(string $file): void
 
         $dbalElements = $dom->getElementsByTagNameNS($xmlns, 'dbal');
         if ($dbalElements->length) {
-            $dbalDom    = new DOMDocument('1.0', 'UTF-8');
-            $dbalNode   = $dbalDom->importNode($dbalElements->item(0));
-            $configNode = $dbalDom->createElementNS($xmlns, 'config');
-            $configNode->appendChild($dbalNode);
-            $dbalDom->appendChild($configNode);
+            $dbalDom     = new DOMDocument('1.0', 'UTF-8');
+            $dbalElement = $dbalElements->item(0);
+            if ($dbalElement !== null) {
+                $dbalNode   = $dbalDom->importNode($dbalElement);
+                $configNode = $dbalDom->createElementNS($xmlns, 'config');
+                $configNode->appendChild($dbalNode);
+                $dbalDom->appendChild($configNode);
 
-            $ret = $dbalDom->schemaValidate(__DIR__ . '/../../config/schema/doctrine-1.0.xsd');
-            $this->assertTrue($ret, 'DoctrineBundle Dependency Injection XMLSchema did not validate this XML instance.');
-            $found = true;
+                $ret = $dbalDom->schemaValidate(__DIR__ . '/../../config/schema/doctrine-1.0.xsd');
+                $this->assertTrue($ret, 'DoctrineBundle Dependency Injection XMLSchema did not validate this XML instance.');
+                $found = true;
+            }
         }
 
         $ormElements = $dom->getElementsByTagNameNS($xmlns, 'orm');
         if ($ormElements->length) {
             $ormDom     = new DOMDocument('1.0', 'UTF-8');
-            $ormNode    = $ormDom->importNode($ormElements->item(0));
-            $configNode = $ormDom->createElementNS($xmlns, 'config');
-            $configNode->appendChild($ormNode);
-            $ormDom->appendChild($configNode);
+            $ormElement = $ormElements->item(0);
+            if ($ormElement !== null) {
+                $ormNode    = $ormDom->importNode($ormElement);
+                $configNode = $ormDom->createElementNS($xmlns, 'config');
+                $configNode->appendChild($ormNode);
+                $ormDom->appendChild($configNode);
 
-            $ret = $ormDom->schemaValidate(__DIR__ . '/../../config/schema/doctrine-1.0.xsd');
-            $this->assertTrue($ret, 'DoctrineBundle Dependency Injection XMLSchema did not validate this XML instance.');
-            $found = true;
+                $ret = $ormDom->schemaValidate(__DIR__ . '/../../config/schema/doctrine-1.0.xsd');
+                $this->assertTrue($ret, 'DoctrineBundle Dependency Injection XMLSchema did not validate this XML instance.');
+                $found = true;
+            }
         }
 
         $this->assertTrue($found, 'Neither <doctrine:orm> nor <doctrine:dbal> elements found in given XML. Are namespaces configured correctly?');