From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Tue, 2 Apr 2019 17:51:53 +0200
Subject: Prevent destructors with side-effects from being unserialized

Origin: upstream, https://github.com/symfony/symfony/commit/4fb975281634b8d49ebf013af9e502e67c28816b
---
 .../Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php        | 10 ++++++++++
 .../FrameworkBundle/Tests/Kernel/ConcreteMicroKernel.php       | 10 ++++++++++
 src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php   | 10 ++++++++++
 3 files changed, 30 insertions(+)

diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
index 6333c4f..2c7391a 100644
--- a/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
@@ -83,6 +83,16 @@ class SymfonyTestsListenerTrait
         }
     }
 
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
     public function __destruct()
     {
         if (0 < $this->state) {
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/ConcreteMicroKernel.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/ConcreteMicroKernel.php
index c436d97..1266962 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/ConcreteMicroKernel.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Kernel/ConcreteMicroKernel.php
@@ -64,6 +64,16 @@ class ConcreteMicroKernel extends Kernel implements EventSubscriberInterface
         return $this->cacheDir;
     }
 
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
     public function __destruct()
     {
         $fs = new Filesystem();
diff --git a/src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php b/src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php
index 274eb73..5510898 100644
--- a/src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php
+++ b/src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php
@@ -116,6 +116,16 @@ trait FilesystemCommonTrait
         throw new \ErrorException($message, 0, $type, $file, $line);
     }
 
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
     public function __destruct()
     {
         if (method_exists(parent::class, '__destruct')) {