[hibernate-issues] [JIRA] (BVAL-788) NPE when using CompositeUserType with generic fields in Hibernate 6

Adam Pawlak ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *created* an issue Bean Validation ( https://hibernate.atlassian.net/browse/BVAL?atlOrigin=eyJpIjoiZWU5MmI5MmM... ) / Bug ( https://hibernate.atlassian.net/browse/BVAL-788?atlOrigin=eyJpIjoiZWU5MmI... ) BVAL-788 ( https://hibernate.atlassian.net/browse/BVAL-788?atlOrigin=eyJpIjoiZWU5MmI... ) NPE when using CompositeUserType with generic fields in Hibernate 6 ( https://hibernate.atlassian.net/browse/BVAL-788?atlOrigin=eyJpIjoiZWU5MmI... ) Issue Type: Bug Assignee: Unassigned Created: 14/Aug/2023 07:49 AM Environment: hibernate 6.2.6 Priority: Major Reporter: Adam Pawlak ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) After migrating from hiberante 5.1.2 to hibernate 6.2.6 as i understand it, i must used CompositeUserType (instead of userType) to map 2 columns to one object. It’s all working great BUT if this object contains generic fields then i get NPE: Caused by: java.lang.NullPointerException: Cannot invoke "[I.clone()" because "original.originalPropertyOrder" is null at org.hibernate.mapping.Component.<init>(Component.java:121) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.mapping.Component.copy(Component.java:137) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.ClassPropertyHolder.handleGenericComponentProperty(ClassPropertyHolder.java:246) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.ClassPropertyHolder.addPropertyToPersistentClass(ClassPropertyHolder.java:264) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.ClassPropertyHolder.addProperty(ClassPropertyHolder.java:217) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.ClassPropertyHolder.addProperty(ClassPropertyHolder.java:203) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.bind(PropertyBinder.java:327) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.makePropertyAndBind(PropertyBinder.java:288) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.EmbeddableBinder.createEmbeddedProperty(EmbeddableBinder.java:245) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.EmbeddableBinder.createCompositeBinder(EmbeddableBinder.java:118) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.bindBasic(PropertyBinder.java:1022) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.bindProperty(PropertyBinder.java:867) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.buildProperty(PropertyBinder.java:765) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.PropertyBinder.processElementAnnotations(PropertyBinder.java:686) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.EntityBinder.processIdPropertiesIfNotAlready(EntityBinder.java:967) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.EntityBinder.handleIdentifier(EntityBinder.java:302) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.EntityBinder.bindEntityClass(EntityBinder.java:228) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.internal.AnnotationBinder.bindClass(AnnotationBinder.java:417) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(AnnotationMetadataSourceProcessorImpl.java:255) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.processEntityHierarchies(MetadataBuildingProcess.java:275) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:318) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1380) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1451) ~[hibernate-core-6.2.6.Final.jar:6.2.6.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:75) ~[spring-orm-6.0.11.jar:6.0.11] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376) ~[spring-orm-6.0.11.jar:6.0.11] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.0.11.jar:6.0.11] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.0.11.jar:6.0.11] at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352) ~[spring-orm-6.0.11.jar:6.0.11] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1817) ~[spring-beans-6.0.11.jar:6.0.11] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1766) ~[spring-beans-6.0.11.jar:6.0.11] Sample code: Entity: import jakarta.persistence.AttributeOverride; import jakarta.persistence.AttributeOverrides; import jakarta.persistence.Column; import jakarta.persistence.Embedded; import jakarta.persistence.Entity; import jakarta.persistence.Id; import jakarta.persistence.Lob; import org.hibernate.annotations.CompositeType; import pl.org.opi.polon2.employees.shared.IntermediateEventUserTypeBoo; @Entity public class BooEntity { @Id private Long id; @Lob @Embedded @CompositeType(value = IntermediateEventUserTypeBoo.class) @AttributeOverrides({ @AttributeOverride(name = "type", column = @Column(name = "TYPE", updatable = false)), @AttributeOverride(name = "jsonValue", column = @Column(name = "DATA", updatable = false, columnDefinition = "clob")) }) protected Boo boo; public BooEntity(Boo boo) { this.boo = boo; } } IntermediateEventUserTypeBoo : import org.hibernate.HibernateException; import org.hibernate.engine.spi.SessionFactoryImplementor; import org.hibernate.metamodel.spi.ValueAccess; import org.hibernate.usertype.CompositeUserType; import pl.org.opi.polon2.employees.employment.Boo; import java.io.Serializable; import java.util.Objects; public class IntermediateEventUserTypeBoo implements CompositeUserType<Boo> { public static class EmbeddableMapper { String type; String jsonValue; } @Override public Object getPropertyValue(Boo component, int property) throws HibernateException { return switch (property) { case 0 -> component.getType(); case 1 -> component.getJson(); default -> new RuntimeException(); }; } @Override public Boo instantiate(ValueAccess values, SessionFactoryImplementor sessionFactory) { String type = values.getValue(0, String.class); BooEnum booEnum = Enum.valueOf(BooEnum.class, type); String json = values.getValue(1, String.class); return new Boo(booEnum, json); } @Override public Class<?> embeddable() { return EmbeddableMapper.class; } @Override public Class<Boo> returnedClass() { return Boo.class; } @Override public boolean equals(Boo x, Boo y) { return Objects.equals(x, y); } @Override public int hashCode(Boo x) { return Objects.hashCode(x); } @Override public Boo deepCopy(Boo value) { return new Boo<>(value.getType(), value.getJson()); } @Override public boolean isMutable() { return false; } @Override public Serializable disassemble(Boo value) { return (Serializable) value; } @Override public Boo assemble(Serializable cached, Object owner) { return (Boo) cached; } @Override public Boo replace(Boo detached, Boo managed, Object owner) { return detached; } } BooEnum: public enum BooEnum { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, SATURDAY, SUNDAY } Boo: public class Boo<T extends Enum<T>> { private final T type; private String json; public Boo(T type, String revision) { this.type = type; this.json = revision; } public T getType() { return type; } public String getJson() { return json; } } BooTest: import jakarta.persistence.EntityManager; import jakarta.persistence.EntityManagerFactory; import jakarta.persistence.Persistence; import org.junit.After; import org.junit.Before; import org.junit.Test; import pl.org.opi.polon2.employees.employment.Boo; import pl.org.opi.polon2.employees.employment.BooEntity; import pl.org.opi.polon2.employees.shared.BooEnum; public class BooTest { private EntityManagerFactory entityManagerFactory; @Before public void init() { entityManagerFactory = Persistence.createEntityManagerFactory( "templatePU" ); } @After public void destroy() { entityManagerFactory.close(); } // Entities are auto-discovered, so just add them anywhere on class-path // Add your tests, using standard JUnit. @Test public void hhh123Test() throws Exception { EntityManager entityManager = entityManagerFactory.createEntityManager(); entityManager.getTransaction().begin(); Boo<BooEnum> booEnumBoo = new Boo<>(BooEnum.SATURDAY, "2"); BooEntity booEntity = new BooEntity(booEnumBoo); entityManager.getTransaction().commit(); entityManager.close(); } } In my opinion problem is that the class Boo contains generic field. When i change class Boo on: public class Boo { private final String type; private String json; public Boo(String type, String revision) { this.type = type; this.json = revision; } public String getType() { return type; } public String getJson() { return json; } } Everything is good ( https://hibernate.atlassian.net/browse/BVAL-788#add-comment?atlOrigin=eyJ... ) Add Comment ( https://hibernate.atlassian.net/browse/BVAL-788#add-comment?atlOrigin=eyJ... ) 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#100234- sha1:d099d86 )