Bug 315287

Description Michael OBrien 2010-06-01 15:48:19 EDT

>Problem: If we add a plain java class as the root of an inheritance hierarchy - we fail on initialization with an IAException
>The IAE is because we are using .managedType() internally and do not handle a BasicType at the root

>Test model is extended by adding [Gear] at the top
>Gear (non-entity/non-mappedSuperclass plain java class - non-persistable)
  +-----HockeyGear (Abstract Entity) (not cacheable)
         +----- GoalieGear (Concrete MappedSuperclass) --- (no cache entry) 
                 +----- Chest Protector (Concrete Entity) ---- cacheable
                 +----- Pads (Concrete Entity) ---- cacheable


>we fail here
    public <X> ManagedType<X> managedType(Class<X> clazz) {
        Object aType = this.managedTypes.get(clazz);
        // Throw an IAE exception if the returned type is not a ManagedType
        // For any clazz that resolves to a BasicType - use getType(clazz) in implementations when you are expecting a BasicType
        if(null != aType && aType instanceof ManagedType) {
            return (ManagedType<X>) aType;
        } else {
>            throw new IllegalArgumentException(ExceptionLocalization.buildMessage(
                    "metamodel_class_incorrect_type_instance", 
                    new Object[] { clazz, "ManagedType", aType}));
        }
    }

>with
[EL Finest]: ServerSession(17102073)--Thread(Thread[Thread-4,6,main])--Initialization of the metamodel failed during deployment.  Ignoring exception: [The type [null] is not the expected [ManagedType] for the key class [class org.eclipse.persistence.testing.models.jpa.advanced.fetchgroup.Gear].] 

Thread [Thread-4] (Suspended (breakpoint at line 425 in MetamodelImpl))	
	MetamodelImpl.managedType(Class<X>) line: 425	
	EntityTypeImpl<X>(ManagedTypeImpl<X>).getManagedSuperType() line: 761	
	EntityTypeImpl<X>(ManagedTypeImpl<X>).isAttributeDeclaredOnlyInLeafType(String, Attribute) line: 1057	
	MappedSuperclassTypeImpl<X>(ManagedTypeImpl<X>).isAttributeDeclaredOnlyInLeafType(String, Attribute) line: 1083	
	EntityTypeImpl<X>(ManagedTypeImpl<X>).isAttributeDeclaredOnlyInLeafType(String, Attribute) line: 1083	
	EntityTypeImpl<X>(ManagedTypeImpl<X>).isAttributeDeclaredOnlyInLeafType(String) line: 1005	
	EntityTypeImpl<X>(ManagedTypeImpl<X>).getDeclaredAttributes() line: 320	
	EntityManagerSetupImpl.initializeCanonicalMetamodel(Metamodel) line: 2020	
	EntityManagerSetupImpl.getMetamodel() line: 1998	
	EntityManagerSetupImpl.deploy(ClassLoader, Map) line: 398	
	EntityManagerFactoryImpl.getServerSession() line: 157	
	EntityManagerFactoryImpl.createEntityManagerImpl(Map) line: 214	
	EntityManagerFactoryImpl.createEntityManager() line: 202	
	JUnitTestCase.getServerSession() line: 365	
	JUnitTestCase.clearCache() line: 228	
	AdvancedJPAJunitTest.setUp() line: 107	

>using
aSuperType = (ManagedTypeImpl<?>)this.getMetamodel().managedType(aSuperClass);

>we should be using 
aNonManagedSuperType = this.getMetamodel().getType(aSuperClass);