From 8264a9e3983c922126ccfa29c091a8d35f197dda Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 30 Aug 2017 16:21:48 +0200
Subject: [PATCH] [HttpKernel] Fix loading legacy 3.3 containers in 3.4 context

---
 src/Symfony/Component/HttpKernel/Kernel.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index df795fcd33dbd..d20258d4ac389 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -598,9 +598,7 @@ protected function initializeContainer()
                 }
             }
 
-            if ($oldContainer = file_exists($cache->getPath()) ? @include $cache->getPath() : false) {
-                $oldContainer = new \ReflectionClass($oldContainer);
-            }
+            $oldContainer = file_exists($cache->getPath()) && is_object($oldContainer = @include $cache->getPath()) ? new \ReflectionClass($oldContainer) : false;
 
             $this->dumpContainer($cache, $container, $class, $this->getContainerBaseClass());