diff --git a/File/UploadedFile.php b/File/UploadedFile.php
index 36fd1e65c..5d5063e46 100644
--- a/File/UploadedFile.php
+++ b/File/UploadedFile.php
@@ -31,7 +31,7 @@
  */
 class UploadedFile extends File
 {
-    private $test = false;
+    private $test;
     private $originalName;
     private $mimeType;
     private $error;
@@ -83,7 +83,7 @@ public function __construct(string $path, string $originalName, string $mimeType
      * It is extracted from the request from which the file has been uploaded.
      * Then it should not be considered as a safe value.
      *
-     * @return string|null The original name
+     * @return string The original name
      */
     public function getClientOriginalName()
     {
@@ -112,7 +112,7 @@ public function getClientOriginalExtension()
      * For a trusted mime type, use getMimeType() instead (which guesses the mime
      * type based on the file content).
      *
-     * @return string|null The mime type
+     * @return string The mime type
      *
      * @see getMimeType()
      */