AC-13738::Adobe Commerce 2.4.8-beta2 core code is compatible with PHP 8.4

Author: glo71317

app/code/Magento/Directory/Model/Config/Backend/WeightUnit.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2024 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -45,8 +45,8 @@ public function __construct(
         Registry $registry,
         ScopeConfigInterface $config,
         TypeListInterface $cacheTypeList,
-        AbstractResource $resource = null,
-        AbstractDb $resourceCollection = null,
+        ?AbstractResource $resource = null,
+        ?AbstractDb $resourceCollection = null,
         array $data = []
     ) {
         $this->source = $source;

app/code/Magento/SalesRule/Model/Coupon/Usage/Processor.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2020 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -60,7 +60,7 @@ public function __construct(
         private readonly Usage $couponUsage,
         private readonly CouponRepositoryInterface $couponRepository,
         private readonly SearchCriteriaBuilder $criteriaBuilder,
-        LockManagerInterface $lockManager = null
+        ?LockManagerInterface $lockManager = null
     ) {
         $this->lockManager = $lockManager ?? ObjectManager::getInstance()->get(LockManagerInterface::class);
     }

pub/errors/processor.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2011 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -22,11 +22,11 @@
  */
 class Processor
 {
-    const MAGE_ERRORS_LOCAL_XML = 'local.xml';
-    const MAGE_ERRORS_DESIGN_XML = 'design.xml';
-    const DEFAULT_SKIN = 'default';
-    const ERROR_DIR = 'pub/errors';
-    const NUMBER_SYMBOLS_IN_SUBDIR_NAME = 2;
+    public const MAGE_ERRORS_LOCAL_XML = 'local.xml';
+    public const MAGE_ERRORS_DESIGN_XML = 'design.xml';
+    public const DEFAULT_SKIN = 'default';
+    public const ERROR_DIR = 'pub/errors';
+    public const NUMBER_SYMBOLS_IN_SUBDIR_NAME = 2;
 
     /**
      * Page title
@@ -178,9 +178,9 @@ class Processor
      */
     public function __construct(
         Http $response,
-        Json $serializer = null,
-        Escaper $escaper = null,
-        DocumentRoot $documentRoot = null
+        ?Json $serializer = null,
+        ?Escaper $escaper = null,
+        ?DocumentRoot $documentRoot = null
     ) {
         $this->_response = $response;
         $this->_errorDir  = __DIR__ . '/';
@@ -739,7 +739,7 @@ protected function _validate()
      * @param \stdClass $config
      * @return void
      */
-    protected function _setSkin($value, \stdClass $config = null)
+    protected function _setSkin($value, ?\stdClass $config = null)
     {
         if (preg_match('/^[a-z0-9_]+$/i', $value) && is_dir($this->_errorDir . $value)) {
             if (!$config) {