[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6295) @ElementCollection @Lob List<byte[]> fails

[Aleksei Valikov (JIRA)]

@ElementCollection @Lob List<byte[]> fails
------------------------------------------

                 Key: HHH-6295
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6295
             Project: Hibernate Core
          Issue Type: Bug
          Components: annotations
    Affects Versions: 3.6.4
            Reporter: Aleksei Valikov


I am trying to map a List of {{byte[]}} as a @Lob @ElementCollection with no success.

Below are test cases.

Variant 1 (without targetClass):

{code}
@Entity
public class G {

	private String id;

	@Id
	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}
	
	private List<byte[]> bytes;
	
	@ElementCollection
	@Lob
	public List<byte[]> getBytes() {
		return bytes;
	}
	
	public void setBytes(List<byte[]> bytes) {
		this.bytes = bytes;
	}
	
}
{code}

Stack trace:

{code}javax.persistence.PersistenceException: [PersistenceUnit: org.jvnet.hyperjaxb3.hibernate.tests.hhh] Unable to configure EntityManagerFactory
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:378)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:56)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
	at org.jvnet.hyperjaxb3.hibernate.tests.hhh.EntityManagerFactoryTest.entityManagerFactoryCreated(EntityManagerFactoryTest.java:22)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.AnnotationException: Collection has neither generic type or OneToMany.targetEntity() defined: org.jvnet.hyperjaxb3.hibernate.tests.hhh.G.bytes
	at org.hibernate.cfg.annotations.CollectionBinder.getCollectionType(CollectionBinder.java:621)
	at org.hibernate.cfg.annotations.CollectionBinder.bind(CollectionBinder.java:509)
	at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1979)
	at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:796)
	at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:707)
	at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:4035)
	at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3989)
	at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1398)
	at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1375)
	at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1519)
	at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:193)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1100)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:282)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:366)
	... 25 more
{code}

Variant 2 (with targetClass):

{code}
@Entity
public class G {

	private String id;

	@Id
	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}
	
	private List<byte[]> bytes;
	
	@ElementCollection(targetClass=byte[].class)
	@Lob
	public List<byte[]> getBytes() {
		return bytes;
	}
	
	public void setBytes(List<byte[]> bytes) {
		this.bytes = bytes;
	}
	
}{code}


Stack trace:

{code}
org.hibernate.annotations.common.AssertionFailure: Fail to process type argument in a generic declaration. Member : org.jvnet.hyperjaxb3.hibernate.tests.hhh.G#getBytes Type: class sun.reflect.generics.reflectiveObjects.GenericArrayTypeImpl
	at org.hibernate.ejb.metamodel.AttributeFactory$PluralAttributeMetadataImpl.getClassFromGenericArgument(AttributeFactory.java:846)
	at org.hibernate.ejb.metamodel.AttributeFactory$PluralAttributeMetadataImpl.<init>(AttributeFactory.java:756)
	at org.hibernate.ejb.metamodel.AttributeFactory$PluralAttributeMetadataImpl.<init>(AttributeFactory.java:731)
	at org.hibernate.ejb.metamodel.AttributeFactory.determineAttributeMetadata(AttributeFactory.java:518)
	at org.hibernate.ejb.metamodel.AttributeFactory.buildAttribute(AttributeFactory.java:93)
	at org.hibernate.ejb.metamodel.MetadataContext.wrapUp(MetadataContext.java:187)
	at org.hibernate.ejb.metamodel.MetamodelImpl.buildMetamodel(MetamodelImpl.java:66)
	at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:906)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
{code}

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