I discovered this issue during migration to Spring Boot 3 and Hibernate 6.2
So if we have the following entity
{noformat}@Entity
public class Main {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@ManyToOne
private Connector connector;
@ManyToOne(fetch = FetchType.LAZY)
private Sub sub;
}{noformat}
This entity has a reference to {{Sub}} entity which is lazy
{{Connector}} entity has a reference on {{Sub}} as well and FetchMode is a SELECT
{noformat}@Entity
public class Connector {
@Id
private Long id;
@ManyToOne
@Fetch(FetchMode.SELECT)
private Sub sub;
}{noformat}
when executing the following query {{select m from Main m where m.connector.id = 1}} you will get the following exception
{noformat}ava.lang.StackOverflowError
at org.hibernate.sql.results.graph.entity.EntityInitializer.findFirstEntityInitializer(EntityInitializer.java:34)
at org.hibernate.sql.results.graph.entity.internal.EntitySelectFetchInitializerBuilder.createInitializer(EntitySelectFetchInitializerBuilder.java:45)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchSelectImpl.buildEntitySelectFetchInitializer(EntityFetchSelectImpl.java:92)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchSelectImpl.lambda$createAssembler$0(EntityFetchSelectImpl.java:70)
at org.hibernate.sql.results.internal.ResultsHelper$1.resolveInitializer(ResultsHelper.java:117)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchSelectImpl.createAssembler(EntityFetchSelectImpl.java:67)
at org.hibernate.sql.results.graph.entity.AbstractEntityInitializer.<init>(AbstractEntityInitializer.java:172)
at org.hibernate.sql.results.graph.entity.internal.EntityJoinedFetchInitializer.<init>(EntityJoinedFetchInitializer.java:48)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchJoinedImpl.buildEntityJoinedFetchInitializer(EntityFetchJoinedImpl.java:127)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchJoinedImpl.lambda$getEntityInitializer$0(EntityFetchJoinedImpl.java:100)
at org.hibernate.sql.results.internal.ResultsHelper$1.resolveInitializer(ResultsHelper.java:117)
at org.hibernate.sql.results.graph.entity.internal.EntityFetchJoinedImpl.getEntityInitializer(EntityFetchJoinedImpl.java:97)
at org.hibernate.sql.results.graph.entity.AbstractNonLazyEntityFetch.createAssembler(AbstractNonLazyEntityFetch.java:68)
at org.hibernate.sql.results.graph.entity.AbstractEntityInitializer.<init>(AbstractEntityInitializer.java:172)
at org.hibernate.sql.results.graph.entity.internal.EntityResultInitializer.<init>(EntityResultInitializer.java:35)
at org.hibernate.sql.results.graph.entity.internal.EntityResultImpl.lambda$createResultAssembler$0(EntityResultImpl.java:91)
at org.hibernate.sql.results.internal.ResultsHelper$1.resolveInitializer(ResultsHelper.java:117)
at org.hibernate.sql.results.graph.entity.internal.EntityResultImpl.createResultAssembler(EntityResultImpl.java:82)
at org.hibernate.sql.results.jdbc.internal.StandardJdbcValuesMapping.resolveAssemblers(StandardJdbcValuesMapping.java:53){noformat}
I’ve attached the reproducer. Run {{ORMStandaloneTestCase}} class to reproduce this issue
Also, it works fine on Hibernate 5
if use {{@Fetch(FetchMode.JOIN)}} then this case is working fine on Hibernate 6 |
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