Don't get repository at construction time, it could be not loaded yet!

Entity/TokenManager.php

@@ -25,27 +25,30 @@ class TokenManager extends BaseTokenManager
      */
     protected $em;
 
-    /**
-     * @var EntityRepository
-     */
-    protected $repository;
-
     /**
      * @var string
      */
     protected $class;
 
     public function __construct(EntityManagerInterface $em, $class)
     {
-        // NOTE: bug in Doctrine, hinting EntityRepository|ObjectRepository when only EntityRepository is expected
-        /** @var EntityRepository $repository */
-        $repository = $em->getRepository($class);
-
         $this->em = $em;
-        $this->repository = $repository;
         $this->class = $class;
     }
 
+    /**
+     * retrocompatibility with old $repository property.
+     * @param $name
+     * @return mixed
+     */
+    public function __get($name)
+    {
+        if ('repository' === $name) {
+            return $this->getRepository();
+        }
+
+        return $this->$name;
+    }
     /**
      * {@inheritdoc}
      */
@@ -59,7 +62,7 @@ public function getClass()
      */
     public function findTokenBy(array $criteria)
     {
-        return $this->repository->findOneBy($criteria);
+        return $this->getRepository()->findOneBy($criteria);
     }
 
     /**
@@ -85,7 +88,7 @@ public function deleteToken(TokenInterface $token)
      */
     public function deleteExpired()
     {
-        $qb = $this->repository->createQueryBuilder('t');
+        $qb = $this->getRepository()->createQueryBuilder('t');
         $qb
             ->delete()
             ->where('t.expiresAt < ?1')
@@ -94,4 +97,12 @@ public function deleteExpired()
 
         return $qb->getQuery()->execute();
     }
+
+    /**
+     * @return EntityRepository
+     */
+    protected function getRepository(): EntityRepository
+    {
+        return $this->em->getRepository($this->class);
+    }
 }