Seong Lee ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *commented* on HHH-16934 ( https://hibernate.atlassian.net/browse/HHH-16934?atlOrigin=eyJpIjoiYTQ1M2... ) Re: Fetching multiple fields of the same base class with InheritanceType.SINGLE_TABLE throws PropertyAccessException ( https://hibernate.atlassian.net/browse/HHH-16934?atlOrigin=eyJpIjoiYTQ1M2... ) Hello, I am seeing this exact same error when using a InheritanceType.JOINED type on the parent. This was working fine on SpringBoot 3.0.6 I am on SpringBoot 3.1.2 , which uses Hibernate 6.2.6.Final. I’ve also tried forcing the 6.3.0.CR1 version and still see the error. This is written in Kotlin. @Entity @Table(name = "Resource") @Inheritance(strategy = InheritanceType.JOINED) @DiscriminatorColumn(name = "RESOURCE_TYPE_CD", discriminatorType = DiscriminatorType.INTEGER, columnDefinition = "INT") abstract class Resource( @Id @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "RESOURCE_ID_SEQ") @SequenceGenerator(name = "RESOURCE_ID_SEQ", sequenceName = "RESOURCE_ID_SEQ", allocationSize = 1) override var id: Long? = null, @Column(name = "RESOURCE_TYPE_CD", insertable = false, updatable = false) open var resourceType: ResourceType ): MutableAuditableBaseJpa<Long>() { ... } @Entity @Table(name = "RESOURCE_FUTURE_ROLE") @DiscriminatorValue("1") class FutureRole( ... ): Resource(null, ResourceType.FUTURE_ROLE) { ... } @Entity @Table(name = "RESOURCE_CURRENT_ROLE") @DiscriminatorValue("2") class CurrentRole( ... ): Resource(null, ResourceType.CURRENT_ROLE) { ... } @Entity @Table(name = "RECORD") open class Record( @Column(name = "RESOURCE_ID") override var resourceId: Long, ... ): MutableAuditableBaseJpa<Long>() { @OneToOne @NotFound(action = NotFoundAction.IGNORE) @JoinColumn(name = "RESOURCE_ID", insertable = false, updatable = false) open var futureRole: FutureRole? = null @OneToOne @NotFound(action = NotFoundAction.IGNORE) @JoinColumn(name = "RESOURCE_ID", insertable = false, updatable = false) open var employee: CurrentRole? = null } Caused by: org.hibernate.PropertyAccessException: Could not set value of type [com.hidden.CurrentRole]: 'com.hidden.Record.futureRole' (setter) at org.hibernate.property.access.spi.SetterFieldImpl.set(SetterFieldImpl.java:88) at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:4360) at org.hibernate.sql.results.graph.entity.AbstractEntityInitializer.initializeEntityInstance(AbstractEntityInitializer.java:837) at org.hibernate.sql.results.graph.entity.AbstractEntityInitializer.initializeEntity(AbstractEntityInitializer.java:797) at org.hibernate.sql.results.graph.entity.AbstractEntityInitializer.initializeInstance(AbstractEntityInitializer.java:783) at org.hibernate.sql.results.internal.InitializersList.initializeInstance(InitializersList.java:71) at org.hibernate.sql.results.internal.StandardRowReader.coordinateInitializers(StandardRowReader.java:109) at org.hibernate.sql.results.internal.StandardRowReader.readRow(StandardRowReader.java:86) at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:201) at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:361) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:168) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:93) at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:109) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:305) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:246) at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:509) at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:427) at org.hibernate.query.spi.AbstractSelectionQuery.getSingleResult(AbstractSelectionQuery.java:559) Note: I understand @DiscriminatorColumn is unnecessary for a Joined Inheritance, but this was existing logic I have yet to change. ( https://hibernate.atlassian.net/browse/HHH-16934#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16934#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#100233- sha1:7fb7fe8 )