From 2987d58708d2990386603387bf7ee62535bee9ce Mon Sep 17 00:00:00 2001
From: Mathieu Piot <m.piot@vermon.com>
Date: Fri, 19 Aug 2022 14:56:02 +0200
Subject: [PATCH] [Security][AbstractToken] getUserIdentifier() must return a
 string

---
 .../Security/Core/Authentication/Token/AbstractToken.php        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
index 1385a8ba409d2..d08d382e42c83 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/AbstractToken.php
@@ -48,7 +48,7 @@ public function getRoleNames(): array
 
     public function getUserIdentifier(): string
     {
-        return $this->user->getUserIdentifier();
+        return $this->user ? $this->user->getUserIdentifier() : '';
     }
 
     /**