I haven't spent a ton of time looking into this yet but while trying to
update uPortal to use naturalIds in 4.1.1 I think I ran into a bug in:
NaturalIdXrefDelegate$NaturalIdResolutionCache.areSame(Object[], Object[])
That code uses Type.compare(Object x, Object y) to compare each pair of
fields in the two naturalIds.
I have an entity that has a field of type Class which ends up using the
org.hibernate.type.ClassType.
ClassType relies on parent class AbstractStandardBasicType to implement
the compare method.
AbstractStandardBasicType uses the JavaTypeDescriptor.getComparator()
method to get the comparator to use.
For ClassType the JavaTypeDescriptor is
org.hibernate.type.descriptor.java.ClassTypeDescriptor which never sets
a comparator so JavaTypeDescriptor.getComparator() returns null
resulting in the following NPE:
Caused by: java.lang.NullPointerException
at
org.hibernate.type.AbstractStandardBasicType.compare(AbstractStandardBasicType.java:210)
at
org.hibernate.engine.internal.NaturalIdXrefDelegate$NaturalIdResolutionCache.areSame(NaturalIdXrefDelegate.java:353)
at
org.hibernate.engine.internal.NaturalIdXrefDelegate$NaturalIdResolutionCache.cache(NaturalIdXrefDelegate.java:338)
at
org.hibernate.engine.internal.NaturalIdXrefDelegate.cacheNaturalIdResolution(NaturalIdXrefDelegate.java:78)
at
org.hibernate.engine.internal.StatefulPersistenceContext.entityStateUpdatedNotification(StatefulPersistenceContext.java:1732)
at
org.hibernate.engine.spi.EntityEntry.notifyLoadedStateUpdated(EntityEntry.java:382)
at
org.hibernate.engine.spi.EntityEntry.postUpdate(EntityEntry.java:244)
at
org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:152)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at
org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at
org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:276)
at
org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at
org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1127)
at
org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:325)
at
org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at
org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:73)
I likely won't have time to try and reproduce this in a hibernate unit
test until Monday or Tuesday, I'm hoping someone might have a quick insight.
-Eric
_______________________________________________
hibernate-dev mailing list
hibernate-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hibernate-dev
