MAGETWO-94670: Product Export fails

Author: vzabaznov

app/code/Magento/CatalogImportExport/Model/Export/Product.php

@@ -352,7 +352,7 @@ class Product extends \Magento\ImportExport\Model\Export\Entity\AbstractEntity
      * @param \Magento\Framework\App\ResourceConnection $resource
      * @param \Magento\Store\Model\StoreManagerInterface $storeManager
      * @param \Psr\Log\LoggerInterface $logger
-     * @param \Magento\Catalog\Model\ResourceModel\Product\Collection $collection
+     * @param \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $collectionFactory
      * @param \Magento\ImportExport\Model\Export\ConfigInterface $exportConfig
      * @param \Magento\Catalog\Model\ResourceModel\ProductFactory $productFactory
      * @param \Magento\Eav\Model\ResourceModel\Entity\Attribute\Set\CollectionFactory $attrSetColFactory
@@ -361,9 +361,10 @@ class Product extends \Magento\ImportExport\Model\Export\Entity\AbstractEntity
      * @param \Magento\Catalog\Model\ResourceModel\Product\Option\CollectionFactory $optionColFactory
      * @param \Magento\Catalog\Model\ResourceModel\Product\Attribute\CollectionFactory $attributeColFactory
      * @param Product\Type\Factory $_typeFactory
-     * @param \Magento\Catalog\Model\Product\LinkTypeProvider $linkTypeProvider
-     * @param \Magento\CatalogImportExport\Model\Export\RowCustomizerInterface $rowCustomizer
+     * @param ProductEntity\LinkTypeProvider $linkTypeProvider
+     * @param RowCustomizerInterface $rowCustomizer
      * @param array $dateAttrCodes
+     * @throws \Magento\Framework\Exception\LocalizedException
      * @SuppressWarnings(PHPMD.ExcessiveParameterList)
      */
     public function __construct(
@@ -692,6 +693,8 @@ protected function updateDataWithCategoryColumns(&$dataRow, &$rowCategories, $pr
     }
 
     /**
+     * Get header columns
+     *
      * {@inheritdoc}
      */
     public function _getHeaderColumns()
@@ -751,6 +754,8 @@ protected function _getExportMainAttrCodes()
     }
 
     /**
+     * Get entity collection
+     *
      * {@inheritdoc}
      */
     protected function _getEntityCollection($resetCollection = false)
@@ -821,9 +826,8 @@ protected function paginateCollection($page, $pageSize)
     }
 
     /**
-     * Export process
-     *
      * @return string
+     * @throws \Magento\Framework\Exception\LocalizedException
      */
     public function export()
     {
@@ -857,7 +861,11 @@ public function export()
     }
 
     /**
-     * {@inheritdoc}
+     * Apply filter to collection and add not skipped attributes to select.
+     *
+     * @param \Magento\Eav\Model\Entity\Collection\AbstractCollection $collection
+     * @return \Magento\Eav\Model\Entity\Collection\AbstractCollection
+     *
      * @since 100.2.0
      */
     protected function _prepareEntityCollection(\Magento\Eav\Model\Entity\Collection\AbstractCollection $collection)
@@ -919,11 +927,10 @@ protected function getExportData()
     }
 
     /**
-     * Load products' data from the collection
-     * and filter it (if needed).
+     * Load products' data from the collection and filter it (if needed).
      *
-     * @return array Keys are product IDs, values arrays with keys as store IDs
-     *               and values as store-specific versions of Product entity.
+     * @return array Keys are product IDs, values arrays with keys as store ID
+     * and values as store-specific versions of Product entity.
      */
     protected function loadCollection(): array
     {