[FrameworkBundle] ensureKernelShutdown in tearDownAfterClass

Author: cquintana92

Test/KernelTestCase.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\FrameworkBundle\Test;
 
+use PHPUnit\Framework\Attributes\AfterClass;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -120,8 +121,11 @@ protected static function createKernel(array $options = []): KernelInterface
 
     /**
      * Shuts the kernel down if it was used in the test - called by the tearDown method by default.
+     *
+     * @afterClass
      */
-    protected static function ensureKernelShutdown()
+    #[AfterClass]
+    public static function ensureKernelShutdown()
     {
         if (null !== static::$kernel) {
             static::$kernel->boot();