1 files changed, 7 insertions, 3 deletions
diff --git a/vendor/symfony/cache/Simple/NullCache.php b/vendor/symfony/cache/Simple/NullCache.php
index fa986aebd1..d1ca6f7187 100644
--- a/vendor/symfony/cache/Simple/NullCache.php
+++ b/vendor/symfony/cache/Simple/NullCache.php
@@ -11,12 +11,16 @@
 
 namespace Symfony\Component\Cache\Simple;
 
-use Psr\SimpleCache\CacheInterface;
+use Psr\SimpleCache\CacheInterface as Psr16CacheInterface;
+use Symfony\Components\Cache\Adapter\NullAdapter;
+use Symfony\Contracts\Cache\CacheInterface;
+
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.3, use "%s" and type-hint for "%s" instead.', NullCache::class, NullAdapter::class, CacheInterface::class), E_USER_DEPRECATED);
 
 /**
- * @author Nicolas Grekas <p@tchwork.com>
+ * @deprecated since Symfony 4.3, use NullAdapter and type-hint for CacheInterface instead.
  */
-class NullCache implements CacheInterface
+class NullCache implements Psr16CacheInterface
 {
     /**
      * {@inheritdoc}