HHH-17761 Add a reproducer
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@ -25,6 +25,7 @@ import jakarta.persistence.Table;
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import java.util.ArrayList;
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import java.util.List;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
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import static org.junit.Assert.fail;
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@ -37,7 +38,7 @@ public class MergeEnhancedEntityTest extends BaseCoreFunctionalTestCase {
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private Person person;
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@Override
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public Class<?>[] getAnnotatedClasses() {
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return new Class<?>[]{Person.class, PersonAddress.class};
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return new Class<?>[]{Person.class, PersonAddress.class, NullablePerson.class};
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}
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@Before
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@ -77,11 +78,49 @@ public class MergeEnhancedEntityTest extends BaseCoreFunctionalTestCase {
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} );
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}
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@Test
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public void testMergeWithNullValues() {
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson nullablePerson = new NullablePerson( 1L, "Sam", 100 );
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em.persist( nullablePerson );
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} );
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson updated = em.find( NullablePerson.class, 1L );
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assertThat( updated.name ).isEqualTo( "Sam" );
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assertThat( updated.number ).isEqualTo( 100 );
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} );
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// only some properties are null
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson nullablePerson = new NullablePerson( 1L, "Joe", null );
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em.merge( nullablePerson );
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} );
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson updated = em.find( NullablePerson.class, 1L );
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assertThat( updated.name ).isEqualTo( "Joe" );
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assertThat( updated.number ).isNull();
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} );
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// all properties are null:
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson nullablePerson = new NullablePerson( 1L, null, null );
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em.merge( nullablePerson );
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} );
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doInHibernate( this::sessionFactory, em -> {
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NullablePerson updated = em.find( NullablePerson.class, 1L );
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assertThat( updated.name ).isNull();
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assertThat( updated.number ).isNull();
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} );
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}
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@After
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public void cleanup() {
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doInHibernate( this::sessionFactory, s -> {
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s.delete( person );
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} );
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doInHibernate( this::sessionFactory, s -> {
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s.createQuery( "delete from NullablePerson" );
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} );
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}
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// --- //
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@ -118,4 +157,27 @@ public class MergeEnhancedEntityTest extends BaseCoreFunctionalTestCase {
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@ManyToOne( optional = false, fetch = FetchType.LAZY )
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Person parent;
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}
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@Entity(name = "NullablePerson")
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@Table(name = "NULLABLE_PERSON")
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private static class NullablePerson {
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@Id
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Long id;
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@Column
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String name;
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@Column
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Integer number;
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NullablePerson() {
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}
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NullablePerson(Long id, String name, Integer number) {
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this.id = id;
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this.name = name;
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this.number = number;
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}
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}
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}
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