JobMiddleware if no return, auto next() or notice developer in error message #1266

Author: asika32764

packages/queue/src/Job/JobController.php

@@ -230,7 +230,7 @@ public function run(): static
         return $controller;
     }
 
-    public function next(): JobController
+    public function next(): static
     {
         if ($this->context !== 'middleware') {
             throw new \RuntimeException(
@@ -323,6 +323,12 @@ protected function invokeMiddleware(mixed $middleware): mixed
                 );
             }
 
+            if ($result === null) {
+                throw new \UnexpectedValueException(
+                    'Middleware returns null, you may forgot to return JobController::next() in middleware.'
+                );
+            }
+
             if ($result instanceof \Throwable) {
                 throw $result;
             }