[hibernate-issues] [JIRA] (HHH-16204) [EntityGraph] Does not fetch 4-level data

Bartosz Herczyk ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiOTJkOGQ4YWIx... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16204?atlOrigin=eyJpIjoiOTJkOG... ) HHH-16204 ( https://hibernate.atlassian.net/browse/HHH-16204?atlOrigin=eyJpIjoiOTJkOG... ) [EntityGraph] Does not fetch 4-level data ( https://hibernate.atlassian.net/browse/HHH-16204?atlOrigin=eyJpIjoiOTJkOG... ) Issue Type: Bug Affects Versions: 6.1.6, 6.1.7 Assignee: Unassigned Created: 20/Feb/2023 06:49 AM Priority: Major Reporter: Bartosz Herczyk ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) I migrated hibernate *5.6.14.Final* to *6.1.7.Final* and I noticed a problem with entityGraph. I have entities: @Entity public class Company { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY) private Factory factory; } @Entity public class Factory { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL) private CarFactory carFactory; } public class CarFactory { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @OneToMany(mappedBy = "carFactory" , cascade = CascadeType.ALL, orphanRemoval = true ) Set<Car> cars = new HashSet<>(); } @Entity public class Car { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @OneToMany(mappedBy = "car" , cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true ) private Set<Feature> features = new HashSet<>(); @ManyToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY) private CarFactory carFactory; @ManyToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY) private Info info; } @Entity public class Feature { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @ManyToOne(fetch = FetchType.LAZY) private Car car; @OneToOne(fetch = FetchType.LAZY) private Factory factory; } @Entity public class Info { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; } When I want to fetch all these entities in one query using @EntityGraph : @Query( "select c from Company c where c.id = :id" ) @EntityGraph(attributePaths = { "factory" , "factory.carFactory" , "factory.carFactory.cars" , "factory.carFactory.cars.features" , "factory.carFactory.cars.info" }) Optional<Company> findByIdCustomEntityGraph( long id); or using fetchGraph hint: @Transactional(readOnly = true ) public Company getFetchGraphHint( long id) { var companyGraph = entityManager.createEntityGraph(Company.class); var factoryGraph = companyGraph.addSubgraph( "factory" ); var carFactoryGraph = factoryGraph.addSubgraph( "carFactory" ); var carsGraph = carFactoryGraph.addSubgraph( "cars" ); carsGraph.addAttributeNodes( "features" , "info" ); return entityManager.createQuery( "select c from Company c where c.id = :id" , Company.class) .setParameter( "id" , id) .setHint(SpecHints.HINT_SPEC_FETCH_GRAPH, companyGraph) .getSingleResult(); } The features and info data are not fetched. Example project: * hibernate 6.1.7 - tests failed https://github.com/bherczyk/hibernate_6_bugs/blob/master/src/test/java/co... ( https://github.com/bherczyk/hibernate_6_bugs/blob/master/src/test/java/co... ) * hibernate 5.6.14 - tests passed https://github.com/bherczyk/hibernate_6_bugs/blob/hibernate-5/src/test/ja... ( https://github.com/bherczyk/hibernate_6_bugs/blob/hibernate-5/src/test/ja... ) ( https://hibernate.atlassian.net/browse/HHH-16204#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16204#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100217- sha1:d96fecc )