Description tomt258 2010-02-11 12:19:26 EST

Build Identifier: EclipseLink 2.0.0.v20091127-r5931

When I use generated canonical metamodel I get "IllegalArgumentException: The type [null] is not the expected [ManagedType] for the key class [class model.Base]"

I have:

public abstract class Base
{
	public String exampleMethod(Object o)
	{
		return "test: " + o.toString();
	}
}

@Entity
public class Customer extends Base
{
	private static final long serialVersionUID = 1L;

	@Id
	private Integer id;

	private String name;

	public Customer()
	{
	}

	... // getters/setters
}

code using these classes:

EntityManagerFactory factory = Persistence.createEntityManagerFactory( "testunit" );
EntityManager em = factory.createEntityManager();

em.getTransaction().begin();

CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery<Customer> cq = cb.createQuery( Customer.class );
Root<Customer> c = cq.from( Customer.class );
cq.select( c ).where( cb.equal( c.get( Customer_.id ), new Integer(1) ) );
List<Customer> customers = em.createQuery( cq ).getResultList();
for( Customer customer: customers )
{
	System.out.println( customer.getName() );
}

em.getTransaction().commit();
em.close();


stack trace:
Exception in thread "main" javax.persistence.PersistenceException: java.lang.IllegalArgumentException: The type [null] is not the expected [ManagedType] for the key class [class model.Base].
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:392)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:151)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:207)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:195)
	at main.Start.main(Start.java:20)
Caused by: java.lang.IllegalArgumentException: The type [null] is not the expected [ManagedType] for the key class [class model.Base].
	at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:424)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.getManagedSuperType(ManagedTypeImpl.java:755)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.isAttributeDeclaredOnlyInLeafType(ManagedTypeImpl.java:1051)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.isAttributeDeclaredOnlyInLeafType(ManagedTypeImpl.java:999)
	at org.eclipse.persistence.internal.jpa.metamodel.ManagedTypeImpl.getDeclaredAttributes(ManagedTypeImpl.java:314)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.initializeCanonicalMetamodel(EntityManagerSetupImpl.java:1961)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.getMetamodel(EntityManagerSetupImpl.java:1941)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:385)
	... 4 more

Reproducible: Always

Steps to Reproduce:
1. see above
2.
3.