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app/code/Magento/Eav/Model/Entity/AbstractEntity.php

...Entity/Attribute/AttributeGroupAlreadyExistsException.php

...agento/Eav/Model/ResourceModel/Entity/Attribute/Group.php

app/code/Magento/Eav/Setup/UpgradeSchema.php

...Magento/Eav/Test/Unit/Model/Entity/AbstractEntityTest.php

app/code/Magento/Eav/etc/module.xml

...nto/Catalog/Controller/Adminhtml/Product/Set/SaveTest.php

...gento/Catalog/_files/attribute_set_with_renamed_group.php

...o/Test/Integrity/_files/blacklist/exception_hierarchy.txt

...stsuite/Magento/Test/Legacy/_files/security/blacklist.php

...ernal/Magento/Framework/DB/Adapter/DuplicateException.php

lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php

...rnal/Magento/Framework/EntityManager/Operation/Create.php

...rnal/Magento/Framework/EntityManager/Operation/Update.php

...ramework/EntityManager/Test/Unit/Operation/CreateTest.php

...ramework/EntityManager/Test/Unit/Operation/UpdateTest.php

...al/Magento/Framework/Exception/AlreadyExistsException.php

...l/Magento/Framework/Model/ResourceModel/Db/AbstractDb.php

...ework/Model/Test/Unit/ResourceModel/Db/AbstractDbTest.php