diff --git a/app/code/Magento/Fedex/Model/Carrier.php b/app/code/Magento/Fedex/Model/Carrier.php
index 955345851e67a..0cbd90150734b 100644
--- a/app/code/Magento/Fedex/Model/Carrier.php
+++ b/app/code/Magento/Fedex/Model/Carrier.php
@@ -363,7 +363,6 @@ public function setRequest(RateRequest $request)
 
         if ($request->getDestPostcode()) {
             $r->setDestPostal($request->getDestPostcode());
-        } else {
         }
 
         if ($request->getDestCity()) {
diff --git a/app/code/Magento/GiftMessage/Block/Adminhtml/Sales/Order/View/Items.php b/app/code/Magento/GiftMessage/Block/Adminhtml/Sales/Order/View/Items.php
index c923ced8918d2..c15b76583187a 100644
--- a/app/code/Magento/GiftMessage/Block/Adminhtml/Sales/Order/View/Items.php
+++ b/app/code/Magento/GiftMessage/Block/Adminhtml/Sales/Order/View/Items.php
@@ -171,7 +171,7 @@ public function getMessage()
     /**
      * Retrieve save url
      *
-     * @return array
+     * @return string
      * @codeCoverageIgnore
      */
     public function getSaveUrl()
diff --git a/app/code/Magento/GiftMessage/Block/Cart/GiftOptions.php b/app/code/Magento/GiftMessage/Block/Cart/GiftOptions.php
index 5da8b3b55700e..28a6baa436ef6 100644
--- a/app/code/Magento/GiftMessage/Block/Cart/GiftOptions.php
+++ b/app/code/Magento/GiftMessage/Block/Cart/GiftOptions.php
@@ -3,6 +3,7 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+
 namespace Magento\GiftMessage\Block\Cart;
 
 use Magento\Backend\Block\Template\Context;
@@ -10,6 +11,8 @@
 use Magento\GiftMessage\Model\CompositeConfigProvider;
 
 /**
+ * Gift options cart block.
+ *
  * @api
  * @since 100.0.2
  */
@@ -63,6 +66,8 @@ public function __construct(
     }
 
     /**
+     * Retrieve encoded js layout.
+     *
      * @return string
      */
     public function getJsLayout()
@@ -76,7 +81,7 @@ public function getJsLayout()
     /**
      * Retrieve gift message configuration
      *
-     * @return array
+     * @return string
      */
     public function getGiftOptionsConfigJson()
     {
diff --git a/app/code/Magento/GiftMessage/Model/Type/Plugin/Onepage.php b/app/code/Magento/GiftMessage/Model/Type/Plugin/Onepage.php
index adb500a818517..e1c8c0b5bf5a5 100644
--- a/app/code/Magento/GiftMessage/Model/Type/Plugin/Onepage.php
+++ b/app/code/Magento/GiftMessage/Model/Type/Plugin/Onepage.php
@@ -3,8 +3,12 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+
 namespace Magento\GiftMessage\Model\Type\Plugin;
 
+/**
+ * Add gift message to quote plugin.
+ */
 class Onepage
 {
     /**
@@ -30,9 +34,11 @@ public function __construct(
     }
 
     /**
+     * Add gift message ot quote.
+     *
      * @param \Magento\Checkout\Model\Type\Onepage $subject
      * @param array $result
-     * @return $this
+     * @return array
      */
     public function afterSaveShippingMethod(
         \Magento\Checkout\Model\Type\Onepage $subject,