Fatal error: Uncaught Error: Class "Drupal\Tests\contact\Functional\Hal\MessageHalJsonAnonTest" not found in /home/www/drupal8/test/core/modules/contact/tests/src/Functional/Hal/MessageHalJsonCookieTest.php:10 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/contact/tests/src/Functional/Hal/MessageHalJsonCookieTest.php on line 10