Given
* a class hierarchy where all of them are concrete classes and mapped in a single table with discriminator,
* 2 of them maps the same ManyToOne reference to the concrete parent class
* Batch size should be enabled
When
* Loading entities from database
Then
* Hibernate batch loading is failing calling the wrong field setter for one of the child classes
{noformat}@Entity
@Table(name = "MY_TABLE")
@DiscriminatorColumn(name = "DISC_COL", discriminatorType = DiscriminatorType.INTEGER)
@DiscriminatorValue("0")
public class ConcreteParentClass {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "ID")
private Integer id;
}
@Entity
@DiscriminatorValue("1")
public class ChildA extends ConcreteParentClass {
@JoinColumn(name = "REF_COL", foreignKey = @ForeignKey(name = "FK_REF_00"))
@ManyToOne
@Fetch(FetchMode.SELECT)
ConcreteParentClass reference;
}
@Entity
@DiscriminatorValue("2")
public class ChildB extends ConcreteParentClass {
@JoinColumn(name = "REF_COL", foreignKey = @ForeignKey(name = "FK_REF_00"))
@ManyToOne
@Fetch(FetchMode.SELECT)
ConcreteParentClass reference;
}
public class ORMUnitTestCase extends BaseCoreFunctionalTestCase {
// Add your entities here.
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
ConcreteParentClass.class,
ChildA.class,
ChildB.class,
};
}
// Add in any settings that are specific to your test. See resources/hibernate.properties for the defaults.
@Override
protected void configure(Configuration configuration) {
super.configure( configuration );
configuration.setProperty( AvailableSettings.SHOW_SQL, Boolean.TRUE.toString() );
configuration.setProperty( AvailableSettings.FORMAT_SQL, Boolean.TRUE.toString() );
configuration.setProperty(AvailableSettings.DEFAULT_BATCH_FETCH_SIZE, "10");
}
// Add your tests, using standard JUnit.
@Test
public void hhh123Test() throws Exception {
// BaseCoreFunctionalTestCase automatically creates the SessionFactory and provides the Session.
Session s = openSession();
Transaction tx = s.beginTransaction();
ChildA child1 = new ChildA();
ChildB child2 = new ChildB();
ChildA child3 = new ChildA();
ChildB child4 = new ChildB();
child1.reference = child2;
child4.reference = child3;
s.persist(child1);
s.persist(child2);
s.persist(child3);
s.persist(child4);
tx.commit();
s.close();
s = openSession();
tx = s.beginTransaction();
Query<ConcreteParentClass> query = s.createQuery("from ConcreteParentClass", ConcreteParentClass.class);
query.list();
tx.commit();
s.close();
}
}
jakarta.persistence.PersistenceException: Converting `org.hibernate.PropertyAccessException` to JPA `PersistenceException` : Could not set value of type [org.hibernate.bugs.ChildA] : `org.hibernate.bugs.ChildA.reference` (setter)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:165)
at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:374)
at org.hibernate.query.sqm.internal.QuerySqmImpl.list(QuerySqmImpl.java:1073)
at org.hibernate.bugs.ORMUnitTestCase.hhh123Test(ORMUnitTestCase.java:83)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.hibernate.testing.junit4.ExtendedFrameworkMethod.invokeExplosively(ExtendedFrameworkMethod.java:45)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:299)
at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:293)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: org.hibernate.PropertyAccessException: Could not set value of type [org.hibernate.bugs.ChildA] : `org.hibernate.bugs.ChildA.reference` (setter)
at org.hibernate.property.access.spi.SetterFieldImpl.set(SetterFieldImpl.java:81)
at org.hibernate.sql.results.graph.entity.internal.BatchEntitySelectFetchInitializer.setInstance(BatchEntitySelectFetchInitializer.java:105)
at org.hibernate.sql.results.graph.entity.internal.BatchEntitySelectFetchInitializer.lambda$endLoading$1(BatchEntitySelectFetchInitializer.java:79)
at java.base/java.util.HashMap.forEach(HashMap.java:1421)
at org.hibernate.sql.results.graph.entity.internal.BatchEntitySelectFetchInitializer.endLoading(BatchEntitySelectFetchInitializer.java:73)
at org.hibernate.sql.results.internal.StandardRowReader.finishUp(StandardRowReader.java:160)
at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:223)
at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33)
at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:443)
at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:166)
at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:91)
at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:113)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:335)
at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:276)
at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:571)
at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:363)
... 17 more
Caused by: java.lang.IllegalArgumentException: Can not set org.hibernate.bugs.ConcreteParentClass field org.hibernate.bugs.ChildA.reference to org.hibernate.bugs.ChildB
at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:58)
at java.base/jdk.internal.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:75)
at java.base/java.lang.reflect.Field.set(Field.java:799)
at org.hibernate.property.access.spi.SetterFieldImpl.set(SetterFieldImpl.java:53)
... 33 more
{noformat}
This case works fine in hibernate 5.x (including the latest 5)
I simplified the mapping to have only enough to reproduce the bug. Moving the attribute mapping to a super class is not an option in my case due to some complex mapping hierarchy. I’m using a workaround creating my own PropertyAccessStrategy
I’ll attach a test case as soon I get a Jira issue number Testcase attached and also available at [https://github.com/ratoaq2/HHH-16248|https://github.com/ratoaq2/HHH-16248|smart-link] |
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