fixed php 8.1 type bugs

Account/Account.php

@@ -424,7 +424,7 @@ class Account implements \JsonSerializable, ArrayableInterface
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Account/Group.php

@@ -158,7 +158,7 @@ class Group implements \JsonSerializable, ArrayableInterface
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Account/PermissionAbstract.php

@@ -520,7 +520,7 @@ class PermissionAbstract implements \JsonSerializable
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return [
             'id'         => $this->id,

Localization/Localization.php

@@ -790,7 +790,7 @@ class Localization implements \JsonSerializable
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Message/ResponseAbstract.php

@@ -77,7 +77,7 @@ abstract class ResponseAbstract implements \JsonSerializable, MessageInterface
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Model/Message/Dom.php

@@ -137,7 +137,7 @@ final class Dom implements \Serializable, ArrayableInterface
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Model/Message/FormValidation.php

@@ -69,7 +69,7 @@ final class FormValidation implements \JsonSerializable, \Serializable, Arrayabl
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Model/Message/Notify.php

@@ -173,7 +173,7 @@ final class Notify implements \JsonSerializable, \Serializable, ArrayableInterfa
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Model/Message/Redirect.php

@@ -115,7 +115,7 @@ final class Redirect implements \JsonSerializable, \Serializable, ArrayableInter
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Model/Message/Reload.php

@@ -120,7 +120,7 @@ final class Reload implements \JsonSerializable, \Serializable, ArrayableInterfa
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

Stdlib/Base/Location.php

@@ -191,7 +191,7 @@ class Location implements \JsonSerializable, \Serializable
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return $this->toArray();
     }

System/File/Ftp/Directory.php

@@ -728,7 +728,7 @@ class Directory extends FileAbstract implements DirectoryInterface
     /**
      * {@inheritdoc}
      */
-    public function offsetExists($offset)
+    public function offsetExists($offset) : bool
     {
         $offset = isset($this->nodes[$offset]) ? $offset : $this->path . '/' . $offset;
 

System/File/Local/Directory.php

@@ -551,7 +551,7 @@ final class Directory extends FileAbstract implements DirectoryInterface
     /**
      * {@inheritdoc}
      */
-    public function offsetExists($offset)
+    public function offsetExists($offset) : bool
     {
         $offset = isset($this->nodes[$offset]) ? $offset : $this->path . '/' . $offset;
 

tests/DataStorage/Cache/Connection/FileCacheJsonSerializable.php

@@ -21,7 +21,7 @@ class FileCacheJsonSerializable implements \JsonSerializable
     /**
      * {@inheritdoc}
      */
-    public function jsonSerialize()
+    public function jsonSerialize() : mixed
     {
         return 'abc';
     }