default services conflit ?

old.vendor/symfony/serializer/SerializerAwareTrait.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer;
+
+/**
+ * @author Joel Wurtz <joel.wurtz@gmail.com>
+ */
+trait SerializerAwareTrait
+{
+    /**
+     * @var SerializerInterface
+     */
+    protected $serializer;
+
+    public function setSerializer(SerializerInterface $serializer)
+    {
+        $this->serializer = $serializer;
+    }
+}