[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-6960) NullPointerException in PreCollectionRemove Listener
[
https://hibernate.onjira.com/browse/HHH-6960?page=com.atlassian.jira.plug...
]
Leon Pennings commented on HHH-6960:
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I tried setting up a simple test case, in which case I can't reproduce the problem -
it only happens in our production code.
The class tested has 3 collections. When the error does not occur, I have 3
CollectionEntry. When it does occur I have 4 CollectionEntry objects, so one extra. The
extra one has all null values.
For now I added the nullcheck, in which case all tests succeeds.
NullPointerException in PreCollectionRemove Listener
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Key: HHH-6960
URL: https://hibernate.onjira.com/browse/HHH-6960
Project: Hibernate ORM
Issue Type: Bug
Components: envers
Affects Versions: 4.0.0.Final
Environment: Hibernate 4.0.0 to MySQL
Reporter: Kevin Jordan
Assignee: Adam Warski
I'm getting a NullPointerException on line 47 of
EnversPreCollectionRemoveEventListenerImpl very consistently. I wasn't sure if it was
due to lazy collections or not, but it seems that it fails if they're eagerly fetched
or lazily fetched. I'm guessing it has something to do with getLoadedPersister()
returning a null value since the comments for it say "This is only available late
during the flush cycle". The stack trace is
Quote:
java.lang.NullPointerException
at
org.hibernate.envers.event.EnversPreCollectionRemoveEventListenerImpl.onPreRemoveCollection(EnversPreCollectionRemoveEventListenerImpl.java:47)
at
org.hibernate.action.internal.CollectionRemoveAction.preRemove(CollectionRemoveAction.java:143)
at
org.hibernate.action.internal.CollectionRemoveAction.execute(CollectionRemoveAction.java:104)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:273)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:265)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:188)
at
org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:323)
at
org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315)
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)
... 120 more
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