[eclipselink-users] NullPointerException for ManyToOne in generic Embedd

[jml83 <jeffrey.m.leong@xxxxxxxxx>]

I get the following exception when trying to process an Embeddable with a
generic ManyToOne relationship using the built in
org.eclipse.jpt.eclipselink.core.ddlgen.Main class in Eclipse Galileo:

Caused by: java.lang.NullPointerException
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotatedElement.setAnnotatedElement(MetadataAnnotatedElement.java:559)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotatedElement.<init>(MetadataAnnotatedElement.java:90)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataClass.<init>(MetadataClass.java:32)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotatedElement.isEmbedded(MetadataAnnotatedElement.java:359)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.buildAccessor(ClassAccessor.java:261)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processAccessorFields(ClassAccessor.java:577)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.addAccessors(ClassAccessor.java:239)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processAccessors(ClassAccessor.java:633)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EmbeddableAccessor.process(EmbeddableAccessor.java:85)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.EmbeddedAccessor.processEmbeddableClass(EmbeddedAccessor.java:345)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.EmbeddedAccessor.process(EmbeddedAccessor.java:134)
	at
org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.processAccessors(MetadataDescriptor.java:1082)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processAccessors(ClassAccessor.java:636)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processAccessors(EntityAccessor.java:611)
	at
org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:530)
	at
org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:446)
	at
org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:303)
	at
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:838)
	... 8 more

I took the liberty of debugging the stack a lil bit, and it seems the
m_rawClass doesn't get set properly in the method
MetadataAnnotatedElement.getRawClass() because the m_genericTypes variable
never gets populated for EmbeddableAccessor. 

It does however get populated properly for Entites by the
EntityAccessor.discoverMappedSuperclassesAndInheritanceParents() method. At
the risk of sounding presumptuous, it would seem calling a similar method in
the process() method of the EmbeddableAccessor might fix this... Apologies
for the amateur diagnosis, but this has been really jamming up my work.

Could this be fixed for generics on Embeddables? 

p.s. should I be sending this to the DEV list?

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