[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-7236) Natural-id : NullPointerException after persisting null String value, if using @NaturalIdCache

[Strong Liu (JIRA)]

     [ https://hibernate.onjira.com/browse/HHH-7236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Strong Liu closed HHH-7236.
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> Natural-id : NullPointerException after persisting null String value, if using @NaturalIdCache
> ----------------------------------------------------------------------------------------------
>
>                 Key: HHH-7236
>                 URL: https://hibernate.onjira.com/browse/HHH-7236
>             Project: Hibernate ORM
>          Issue Type: Bug
>          Components: caching (L2), core
>    Affects Versions: 4.1.2
>            Reporter: Guenther Demetz
>            Assignee: Strong Liu
>             Fix For: 4.1.3
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> Following new matrix testmethod 
> {code:title=org.hibernate.test.naturalid.mutable.cached.CachedMutableNaturalIdTest.java|borderStyle=solid}
>         @Test
> 	public void testNaturalIdPersistNullValue() {
> 		Session session = openSession();
> 		session.beginTransaction();
> 		Another it = new Another();
> 		it.setName(null);
> 		session.save( it );
> 		session.getTransaction().commit(); // throws NPE
> 		session.close();
> 	}
> {code}
> raises:
> java.lang.NullPointerException
> 	at org.hibernate.type.descriptor.java.AbstractTypeDescriptor.extractHashCode(AbstractTypeDescriptor.java:88)
> 	at org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:201)
> 	at org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:205)
> 	at org.hibernate.cache.spi.NaturalIdCacheKey.<init>(NaturalIdCacheKey.java:79)
> 	at org.hibernate.engine.internal.StatefulPersistenceContext$1.managedSharedCacheEntries(StatefulPersistenceContext.java:1801)
> 	at org.hibernate.engine.internal.StatefulPersistenceContext$1.manageSharedNaturalIdCrossReference(StatefulPersistenceContext.java:1792)
> 	at org.hibernate.action.internal.AbstractEntityInsertAction.handleNaturalIdPostSaveNotifications(AbstractEntityInsertAction.java:198)
> 	at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:130)
> 	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:275)
> 	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:1181)
> 	at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:379)
> 	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.test.naturalid.mutable.cached.CachedMutableNaturalIdTest.testNaturalIdPersistNullValue(CachedMutableNaturalIdTest.java:127)
> 	...
> N.B.: The exception does not happen without the @NaturalIdCache annotation
> Proposed solution: see pull request

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