From 4341f38400d9eec3e502237337337928620a4f0f Mon Sep 17 00:00:00 2001
From: Viktor Rad <vrad@adobe.com>
Date: Fri, 15 Apr 2022 15:23:42 -0500
Subject: [PATCH] 2.4.4 not compatible with php 8.1

---
 src/Migration/Handler/Placeholder.php              |  1 +
 src/Migration/ResourceModel/AbstractCollection.php | 12 ++++++------
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/Migration/Handler/Placeholder.php b/src/Migration/Handler/Placeholder.php
index 35b1bf479..028f021c5 100644
--- a/src/Migration/Handler/Placeholder.php
+++ b/src/Migration/Handler/Placeholder.php
@@ -62,6 +62,7 @@ protected function processContent($content)
         $classDestination = [];
         foreach ($this->classMap->getMap() as $classOldFashion => $classNewStyle) {
             $classSource[] = sprintf('type="%s"', $classOldFashion);
+            $classNewStyle = $classNewStyle ?? '';
             $classDestination[] = sprintf('type="%s"', str_replace('\\', '\\\\', $classNewStyle));
         }
         $content = str_replace($classSource, $classDestination, $content);
diff --git a/src/Migration/ResourceModel/AbstractCollection.php b/src/Migration/ResourceModel/AbstractCollection.php
index fce6be624..21c1f3cd6 100644
--- a/src/Migration/ResourceModel/AbstractCollection.php
+++ b/src/Migration/ResourceModel/AbstractCollection.php
@@ -32,7 +32,7 @@ public function __construct(array $data = [])
     /**
      * @inheritdoc
      */
-    public function current()
+    public function current(): mixed
     {
         return $this->data[$this->position];
     }
@@ -40,7 +40,7 @@ public function current()
     /**
      * @inheritdoc
      */
-    public function key()
+    public function key(): mixed
     {
         return $this->position;
     }
@@ -48,7 +48,7 @@ public function key()
     /**
      * @inheritdoc
      */
-    public function next()
+    public function next(): void
     {
         $this->position++;
     }
@@ -56,7 +56,7 @@ public function next()
     /**
      * @inheritdoc
      */
-    public function rewind()
+    public function rewind(): void
     {
         $this->position = 0;
     }
@@ -64,7 +64,7 @@ public function rewind()
     /**
      * @inheritdoc
      */
-    public function valid()
+    public function valid(): bool
     {
         return $this->key() < count($this->data);
     }
@@ -72,7 +72,7 @@ public function valid()
     /**
      * @inheritdoc
      */
-    public function count()
+    public function count(): int
     {
         return count($this->data);
     }