Deprecate things that prevent \Throwable from bubbling down

UPGRADE-4.4.md

@@ -5,12 +5,15 @@ Cache
 -----
 
  * Added argument `$prefix` to `AdapterInterface::clear()`
+ * Marked the `CacheDataCollector` class as `@final`.
 
 Console
 -------
 
  * Deprecated finding hidden commands using an abbreviation, use the full name instead
  * Deprecated returning `null` from `Command::execute()`, return `0` instead
+ * Deprecated the `Application::renderException()` and `Application::doRenderException()` methods,
+   use `renderThrowable()` and `doRenderThrowable()` instead.
 
 Debug
 -----
@@ -65,6 +68,7 @@ DoctrineBridge
  * Deprecated `RegistryInterface`, use `Doctrine\Common\Persistence\ManagerRegistry`.
  * Added a new `getMetadataDriverClass` method to replace class parameters in `AbstractDoctrineExtension`. This method
    will be abstract in Symfony 5 and must be declared in extending classes.
+ * Marked the `DoctrineDataCollector` class as `@final`.
 
 Filesystem
 ----------
@@ -91,6 +95,7 @@ FrameworkBundle
  * Deprecated `routing.loader.service`, use `routing.loader.container` instead.
  * Not tagging service route loaders with `routing.route_loader` has been deprecated.
  * Overriding the methods `KernelTestCase::tearDown()` and `WebTestCase::tearDown()` without the `void` return-type is deprecated.
+ * Marked the `RouterDataCollector` class as `@final`.
 
 HttpClient
 ----------
@@ -144,6 +149,12 @@ HttpKernel
    current directory or with a glob pattern. The fallback directories have never been advocated
    so you likely do not use those in any app based on the SF Standard or Flex edition.
  * Getting the container from a non-booted kernel is deprecated
+ * Marked the `AjaxDataCollector`, `ConfigDataCollector`, `EventDataCollector`,
+   `ExceptionDataCollector`, `LoggerDataCollector`, `MemoryDataCollector`,
+   `RequestDataCollector` and `TimeDataCollector` classes as `@final`.
+ * Marked the `RouterDataCollector::collect()` method as `@final`.
+ * The `DataCollectorInterface::collect()` and `Profiler::collect()` methods third parameter signature
+   will be `\Throwable $exception = null` instead of `\Exception $exception = null` in Symfony 5.0.
 
 Lock
 ----
@@ -164,6 +175,7 @@ Messenger
  * [BC BREAK] Removed `$retryStrategyLocator` argument from `ConsumeMessagesCommand::__construct`.
  * [BC BREAK] Removed `$senderClassOrAlias` argument from `RedeliveryStamp::__construct`.
  * [BC BREAK] Removed `UnknownSenderException`.
+ * Marked the `MessengerDataCollector` class as `@final`.
 
 Mime
 ----
@@ -216,6 +228,11 @@ Security
    ) {}
    ```
 
+SecurityBundle
+--------------
+
+ * Marked the `SecurityDataCollector` class as `@final`.
+
 Serializer
 ----------
 
@@ -231,6 +248,7 @@ Translation
 
  * Deprecated support for using `null` as the locale in `Translator`.
  * Deprecated accepting STDIN implicitly when using the `lint:xliff` command, use `lint:xliff -` (append a dash) instead to make it explicit.
+ * Marked the `TranslationDataCollector` class as `@final`.
 
 TwigBridge
 ----------
@@ -238,6 +256,7 @@ TwigBridge
  * Deprecated to pass `$rootDir` and `$fileLinkFormatter` as 5th and 6th argument respectively to the
    `DebugCommand::__construct()` method, swap the variables position.
  * Deprecated accepting STDIN implicitly when using the `lint:twig` command, use `lint:twig -` (append a dash) instead to make it explicit.
+ * Marked the `TwigDataCollector` class as `@final`.
 
 TwigBundle
 ----------
@@ -342,6 +361,7 @@ Validator
  * deprecated `ValidatorBuilder::setMetadataCache`, use `ValidatorBuilder::setMappingCache` instead.
  * The `Range` constraint has a new message option `notInRangeMessage` that is used when both `min` and `max` values are set.
    In case you are using custom translations make sure to add one for this new message.
+ * Marked the `ValidatorDataCollector` class as `@final`.
 
 WebProfilerBundle
 -----------------

src/Symfony/Bridge/Doctrine/CHANGELOG.md

@@ -8,6 +8,7 @@ CHANGELOG
  * deprecated `RegistryInterface`, use `Doctrine\Common\Persistence\ManagerRegistry`
  * added support for invokable event listeners
  * added `getMetadataDriverClass` method to deprecate class parameters in service configuration files
+ * Marked the `DoctrineDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php

@@ -23,6 +23,8 @@ use Symfony\Component\HttpKernel\DataCollector\DataCollector;
  * DoctrineDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class DoctrineDataCollector extends DataCollector
 {

src/Symfony/Bridge/Twig/CHANGELOG.md

@@ -11,6 +11,7 @@ CHANGELOG
  * deprecated accepting STDIN implicitly when using the `lint:twig` command, use `lint:twig -` (append a dash) instead to make it explicit.
  * added `--show-deprecations` option to the `lint:twig` command
  * added support for Bootstrap4 switches, use `switch-custom` as `label_attr` in a `CheckboxType`
+ * Marked the `TwigDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Bridge/Twig/DataCollector/TwigDataCollector.php

@@ -25,6 +25,8 @@ use Twig\Profiler\Profile;
  * TwigDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class TwigDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md

@@ -20,6 +20,7 @@ CHANGELOG
  * [BC Break] The `framework.messenger.routing.senders` config key is not deep merged anymore.
  * Added `secrets:*` commands and `%env(secret:...)%` processor to deal with secrets seamlessly.
  * Made `framework.session.handler_id` accept a DSN
+ * Marked the `RouterDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Bundle/FrameworkBundle/Console/Application.php

@@ -207,11 +207,15 @@ class Application extends BaseApplication
         (new SymfonyStyle($input, $output))->warning('Some commands could not be registered:');
 
         foreach ($this->registrationErrors as $error) {
-            if (!$error instanceof \Exception) {
+            if (method_exists($this, 'doRenderThrowable')) {
-                $error = new ErrorException($error);
+                $this->doRenderThrowable($error, $output);
-            }
+            } else {
+                if (!$error instanceof \Exception) {
+                    $error = new ErrorException($error);
+                }
 
-            $this->doRenderException($error, $output);
+                $this->doRenderException($error, $output);
+            }
         }
     }
 }

src/Symfony/Bundle/FrameworkBundle/DataCollector/RouterDataCollector.php

@@ -19,6 +19,8 @@ use Symfony\Component\HttpKernel\DataCollector\RouterDataCollector as BaseRouter
  * RouterDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class RouterDataCollector extends BaseRouterDataCollector
 {

src/Symfony/Bundle/SecurityBundle/CHANGELOG.md

@@ -6,6 +6,7 @@ CHANGELOG
 
  * Added new `argon2id` encoder, undeprecated the `bcrypt` and `argon2i` ones (using `auto` is still recommended by default.)
  * Deprecated the usage of "query_string" without a "search_dn" and a "search_password" config key in Ldap factories.
+ * Marked the `SecurityDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Bundle/SecurityBundle/DataCollector/SecurityDataCollector.php

@@ -34,6 +34,8 @@ use Symfony\Component\VarDumper\Cloner\Data;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class SecurityDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/Cache/CHANGELOG.md

@@ -11,6 +11,7 @@ CHANGELOG
  * added `DeflateMarshaller` to compress serialized values
  * removed support for phpredis 4 `compression`
  * [BC BREAK] `RedisTagAwareAdapter` is not compatible with `RedisCluster` from `Predis` anymore, use `phpredis` instead
+ * Marked the `CacheDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Component/Cache/DataCollector/CacheDataCollector.php

@@ -21,6 +21,8 @@ use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
 /**
  * @author Aaron Scherer <aequasi@gmail.com>
  * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @final since Symfony 4.4
  */
 class CacheDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/Console/Application.php

@@ -128,13 +128,10 @@ class Application implements ResetInterface
         }
 
         $renderException = function (\Throwable $e) use ($output) {
-            if (!$e instanceof \Exception) {
-                $e = class_exists(ErrorException::class) ? new ErrorException($e) : (class_exists(LegacyFatalThrowableError::class) ? new LegacyFatalThrowableError($e) : new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine()));
-            }
             if ($output instanceof ConsoleOutputInterface) {
-                $this->renderException($e, $output->getErrorOutput());
+                $this->renderThrowable($e, $output->getErrorOutput());
             } else {
-                $this->renderException($e, $output);
+                $this->renderThrowable($e, $output);
             }
         };
         if ($phpHandler = set_exception_handler($renderException)) {
@@ -792,20 +789,77 @@ class Application implements ResetInterface
 
     /**
      * Renders a caught exception.
+     *
+     * @deprecated since Symfony 4.4, use "renderThrowable()" instead
      */
     public function renderException(\Exception $e, OutputInterface $output)
     {
+        @trigger_error(sprintf('The "%s::renderException()" method is deprecated since Symfony 4.4, use "renderThrowable()" instead.', __CLASS__), E_USER_DEPRECATED);
+
         $output->writeln('', OutputInterface::VERBOSITY_QUIET);
 
         $this->doRenderException($e, $output);
 
+        $this->finishRenderThrowableOrException($output);
+    }
+
+    public function renderThrowable(\Throwable $e, OutputInterface $output): void
+    {
+        if (__CLASS__ !== \get_class($this) && __CLASS__ === (new \ReflectionMethod($this, 'renderThrowable'))->getDeclaringClass()->getName() && __CLASS__ !== (new \ReflectionMethod($this, 'renderException'))->getDeclaringClass()->getName()) {
+            @trigger_error(sprintf('The "%s::renderException()" method is deprecated since Symfony 4.4, use "renderThrowable()" instead.', __CLASS__), E_USER_DEPRECATED);
+
+            if (!$e instanceof \Exception) {
+                $e = class_exists(ErrorException::class) ? new ErrorException($e) : (class_exists(LegacyFatalThrowableError::class) ? new LegacyFatalThrowableError($e) : new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine()));
+            }
+
+            $this->renderException($e, $output);
+
+            return;
+        }
+
+        $output->writeln('', OutputInterface::VERBOSITY_QUIET);
+
+        $this->doRenderThrowable($e, $output);
+
+        $this->finishRenderThrowableOrException($output);
+    }
+
+    private function finishRenderThrowableOrException(OutputInterface $output): void
+    {
         if (null !== $this->runningCommand) {
             $output->writeln(sprintf('<info>%s</info>', sprintf($this->runningCommand->getSynopsis(), $this->getName())), OutputInterface::VERBOSITY_QUIET);
             $output->writeln('', OutputInterface::VERBOSITY_QUIET);
         }
     }
 
+    /**
+     * @deprecated since Symfony 4.4, use "doRenderThrowable()" instead
+     */
     protected function doRenderException(\Exception $e, OutputInterface $output)
+    {
+        @trigger_error(sprintf('The "%s::doRenderException()" method is deprecated since Symfony 4.4, use "doRenderThrowable()" instead.', __CLASS__), E_USER_DEPRECATED);
+
+        $this->doActuallyRenderThrowable($e, $output);
+    }
+
+    protected function doRenderThrowable(\Throwable $e, OutputInterface $output): void
+    {
+        if (__CLASS__ !== \get_class($this) && __CLASS__ === (new \ReflectionMethod($this, 'doRenderThrowable'))->getDeclaringClass()->getName() && __CLASS__ !== (new \ReflectionMethod($this, 'doRenderException'))->getDeclaringClass()->getName()) {
+            @trigger_error(sprintf('The "%s::doRenderException()" method is deprecated since Symfony 4.4, use "doRenderThrowable()" instead.', __CLASS__), E_USER_DEPRECATED);
+
+            if (!$e instanceof \Exception) {
+                $e = class_exists(ErrorException::class) ? new ErrorException($e) : (class_exists(LegacyFatalThrowableError::class) ? new LegacyFatalThrowableError($e) : new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine()));
+            }
+
+            $this->doRenderException($e, $output);
+
+            return;
+        }
+
+        $this->doActuallyRenderThrowable($e, $output);
+    }
+
+    private function doActuallyRenderThrowable(\Throwable $e, OutputInterface $output): void
     {
         do {
             $message = trim($e->getMessage());

src/Symfony/Component/Console/CHANGELOG.md

@@ -11,6 +11,8 @@ CHANGELOG
  * marked all dispatched event classes as `@final`
  * added support for displaying table horizontally
  * deprecated returning `null` from `Command::execute()`, return `0` instead
+ * Deprecated the `Application::renderException()` and `Application::doRenderException()` methods,
+   use `renderThrowable()` and `doRenderThrowable()` instead.
 
 4.3.0
 -----

src/Symfony/Component/HttpKernel/CHANGELOG.md

@@ -15,6 +15,12 @@ CHANGELOG
  * Marked all dispatched event classes as `@final`
  * Added `ErrorController` to enable the preview and error rendering mechanism
  * Getting the container from a non-booted kernel is deprecated.
+ * Marked the `AjaxDataCollector`, `ConfigDataCollector`, `EventDataCollector`,
+   `ExceptionDataCollector`, `LoggerDataCollector`, `MemoryDataCollector`,
+   `RequestDataCollector` and `TimeDataCollector` classes as `@final`.
+ * Marked the `RouterDataCollector::collect()` method as `@final`.
+ * The `DataCollectorInterface::collect()` and `Profiler::collect()` methods third parameter signature
+   will be `\Throwable $exception = null` instead of `\Exception $exception = null` in Symfony 5.0.
 
 4.3.0
 -----

src/Symfony/Component/HttpKernel/DataCollector/AjaxDataCollector.php

@@ -18,6 +18,8 @@ use Symfony\Component\HttpFoundation\Response;
  * AjaxDataCollector.
  *
  * @author Bart van den Burg <bart@burgov.nl>
+ *
+ * @final since Symfony 4.4
  */
 class AjaxDataCollector extends DataCollector
 {

src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php

@@ -19,6 +19,8 @@ use Symfony\Component\VarDumper\Caster\LinkStub;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class ConfigDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php

@@ -23,6 +23,8 @@ use Symfony\Contracts\Service\ResetInterface;
  * EventDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class EventDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/ExceptionDataCollector.php

@@ -19,6 +19,8 @@ use Symfony\Component\HttpFoundation\Response;
  * ExceptionDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class ExceptionDataCollector extends DataCollector
 {

src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php

@@ -21,6 +21,8 @@ use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
  * LogDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class LoggerDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/MemoryDataCollector.php

@@ -18,6 +18,8 @@ use Symfony\Component\HttpFoundation\Response;
  * MemoryDataCollector.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class MemoryDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php

@@ -22,6 +22,8 @@ use Symfony\Component\HttpKernel\KernelEvents;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class RequestDataCollector extends DataCollector implements EventSubscriberInterface, LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/DataCollector/RouterDataCollector.php

@@ -33,6 +33,8 @@ class RouterDataCollector extends DataCollector
 
     /**
      * {@inheritdoc}
+     *
+     * @final since Symfony 4.4
      */
     public function collect(Request $request, Response $response, \Exception $exception = null)
     {

src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php

@@ -19,6 +19,8 @@ use Symfony\Component\Stopwatch\StopwatchEvent;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since Symfony 4.4
  */
 class TimeDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/HttpKernel/EventListener/DebugHandlersListener.php

@@ -126,11 +126,15 @@ class DebugHandlersListener implements EventSubscriberInterface
                     $output = $output->getErrorOutput();
                 }
                 $this->exceptionHandler = static function (\Throwable $e) use ($app, $output) {
-                    if (!$e instanceof \Exception) {
+                    if (method_exists($app, 'renderThrowable')) {
-                        $e = new ErrorException($e);
+                        $app->renderThrowable($e, $output);
-                    }
+                    } else {
+                        if (!$e instanceof \Exception) {
+                            $e = new ErrorException($e);
+                        }
 
-                    $app->renderException($e, $output);
+                        $app->renderException($e, $output);
+                    }
                 };
             }
         }

src/Symfony/Component/HttpKernel/HttpKernel.php

@@ -76,7 +76,7 @@ class HttpKernel implements HttpKernelInterface, TerminableInterface
                 throw $e;
             }
 
-            return $this->handleException($e, $request, $type);
+            return $this->handleThrowable($e, $request, $type);
         }
     }
 
@@ -91,13 +91,13 @@ class HttpKernel implements HttpKernelInterface, TerminableInterface
     /**
      * @internal
      */
-    public function terminateWithException(\Exception $exception, Request $request = null)
+    public function terminateWithException(\Throwable $exception, Request $request = null)
     {
         if (!$request = $request ?: $this->requestStack->getMasterRequest()) {
             throw $exception;
         }
 
-        $response = $this->handleException($exception, $request, self::MASTER_REQUEST);
+        $response = $this->handleThrowable($exception, $request, self::MASTER_REQUEST);
 
         $response->sendHeaders();
         $response->sendContent();
@@ -197,11 +197,11 @@ class HttpKernel implements HttpKernelInterface, TerminableInterface
     }
 
     /**
-     * Handles an exception by trying to convert it to a Response.
+     * Handles a throwable by trying to convert it to a Response.
      *
      * @throws \Exception
      */
-    private function handleException(\Exception $e, Request $request, int $type): Response
+    private function handleThrowable(\Throwable $e, Request $request, int $type): Response
     {
         $event = new ExceptionEvent($this, $request, $type, $e);
         $this->dispatcher->dispatch($event, KernelEvents::EXCEPTION);

src/Symfony/Component/HttpKernel/Profiler/Profiler.php

@@ -138,10 +138,14 @@ class Profiler implements ResetInterface
     /**
      * Collects data for the given Response.
      *
+     * @param \Throwable|null $exception
+     *
      * @return Profile|null A Profile instance or null if the profiler is disabled
      */
-    public function collect(Request $request, Response $response, \Exception $exception = null)
+    public function collect(Request $request, Response $response/*, \Throwable $exception = null*/)
     {
+        $exception = 2 < \func_num_args() ? func_get_arg(2) : null;
+
         if (false === $this->enabled) {
             return null;
         }

src/Symfony/Component/HttpKernel/Tests/EventListener/DebugHandlersListenerTest.php

@@ -13,6 +13,7 @@ namespace Symfony\Component\HttpKernel\Tests\EventListener;
 
 use PHPUnit\Framework\TestCase;
 use Psr\Log\LogLevel;
+use Symfony\Component\Console\Application;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\Console\Event\ConsoleEvent;
@@ -123,7 +124,7 @@ class DebugHandlersListenerTest extends TestCase
         $this->assertInstanceOf('Closure', $xHandler);
 
         $app->expects($this->once())
-            ->method('renderException');
+            ->method(method_exists(Application::class, 'renderThrowable') ? 'renderThrowable' : 'renderException');
 
         $xHandler(new \Exception());
     }

src/Symfony/Component/Mailer/DataCollector/MessageDataCollector.php

@@ -20,7 +20,7 @@ use Symfony\Component\Mailer\EventListener\MessageLoggerListener;
 /**
  * @author Fabien Potencier <fabien@symfony.com>
  */
-class MessageDataCollector extends DataCollector
+final class MessageDataCollector extends DataCollector
 {
     private $events;
 

src/Symfony/Component/Messenger/CHANGELOG.md

@@ -17,6 +17,7 @@ CHANGELOG
  * [BC BREAK] Removed `$senderClassOrAlias` argument from `RedeliveryStamp::__construct`.
  * [BC BREAK] Removed `UnknownSenderException`.
  * The component is not marked as `@experimental` anymore.
+ * Marked the `MessengerDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Component/Messenger/DataCollector/MessengerDataCollector.php

@@ -20,6 +20,8 @@ use Symfony\Component\VarDumper\Caster\ClassStub;
 
 /**
  * @author Samuel Roze <samuel.roze@gmail.com>
+ *
+ * @final since Symfony 4.4
  */
 class MessengerDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/Translation/CHANGELOG.md

@@ -6,6 +6,7 @@ CHANGELOG
 
  * deprecated support for using `null` as the locale in `Translator`
  * deprecated accepting STDIN implicitly when using the `lint:xliff` command, use `lint:xliff -` (append a dash) instead to make it explicit.
+ * Marked the `TranslationDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Component/Translation/DataCollector/TranslationDataCollector.php

@@ -19,6 +19,8 @@ use Symfony\Component\Translation\DataCollectorTranslator;
 
 /**
  * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
+ *
+ * @final since Symfony 4.4
  */
 class TranslationDataCollector extends DataCollector implements LateDataCollectorInterface
 {

src/Symfony/Component/Validator/CHANGELOG.md

@@ -25,6 +25,7 @@ CHANGELOG
  * Overriding the methods `ConstraintValidatorTestCase::setUp()` and `ConstraintValidatorTestCase::tearDown()` without the `void` return-type is deprecated.
  * deprecated `Symfony\Component\Validator\Mapping\Cache\CacheInterface` in favor of PSR-6.
  * deprecated `ValidatorBuilder::setMetadataCache`, use `ValidatorBuilder::setMappingCache` instead.
+ * Marked the `ValidatorDataCollector` class as `@final`.
 
 4.3.0
 -----

src/Symfony/Component/Validator/DataCollector/ValidatorDataCollector.php

@@ -24,6 +24,8 @@ use Symfony\Component\VarDumper\Cloner\Stub;
 
 /**
  * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
+ *
+ * @final since Symfony 4.4
  */
 class ValidatorDataCollector extends DataCollector implements LateDataCollectorInterface
 {