MAGETWO-89232: Validation error appears if duplicate product twice

Author: omiroshnichenko

app/code/Magento/UrlRewrite/Model/Exception/UrlAlreadyExistsException.php

@@ -8,10 +8,12 @@
 use Magento\Framework\Phrase;
 
 /**
+ * Exception for already created url.
+ *
  * @api
  * @since 100.2.0
  */
-class UrlAlreadyExistsException extends \Magento\Framework\Exception\LocalizedException
+class UrlAlreadyExistsException extends \Magento\Framework\Exception\AlreadyExistsException
 {
     /**
      * @var array
@@ -34,6 +36,8 @@ public function __construct(Phrase $phrase = null, \Exception $cause = null, $co
     }
 
     /**
+     * Returns urls.
+     *
      * @return array
      * @since 100.2.0
      */