[hibernate-dev] Regressions after upgrading from ORM 4.1.6 to 4.1.8

[Guillaume Smet]

Hi,

Any hints or advices on how we can make progress on the regressions below?

Any further information needed, pointers on where to look at to obtain
a self contained test case?

Thanks for your feedback.

On Sat, Nov 17, 2012 at 12:34 PM, Guillaume Smet
<guillaume.smet at gmail.com> wrote:
> Hi,
>
> After upgrading from 4.1.6 to 4.1.8, we have a couple of regressions
> in one of our applications.
>
> We tried to obtain self contained test cases and understand what the
> problem is but it's quite hard to reproduce and we haven't found a way
> to isolate the problem yet.
>
> Anyway, I was wondering if the stacktraces could ring a bell for
> someone to help us analyze the problem. It might even be an obvious
> bug for you once you have the stracktrace.
>
> Here are both stacktraces for the regressions we have:
>
> Stacktrace 1 (only when we configure the batch loading - might be due
> to a race condition because it's not systematic):
>
> Caused by: java.lang.NullPointerException
>         at
> org.hibernate.type.descriptor.java.AbstractTypeDescriptor.extractHashCode(AbstractTypeDescriptor.java:88)
>         at
> org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:210)
>         at
> org.hibernate.type.AbstractStandardBasicType.getHashCode(AbstractStandardBasicType.java:214)
>         at org.hibernate.cache.spi.CacheKey.calculateHashCode(CacheKey.java:71)
>         at org.hibernate.cache.spi.CacheKey.<init>(CacheKey.java:67)
>         at
> org.hibernate.internal.AbstractSessionImpl.generateCacheKey(AbstractSessionImpl.java:252)
>         at
> org.hibernate.engine.spi.BatchFetchQueue.isCached(BatchFetchQueue.java:330)
>         at
> org.hibernate.engine.spi.BatchFetchQueue.getCollectionBatch(BatchFetchQueue.java:312)
>         at
> org.hibernate.loader.collection.BatchingCollectionInitializer.initialize(BatchingCollectionInitializer.java:72)
>         at
> org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:678)
>         at
> org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:80)
>         at
> org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:1804)
>         at
> org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:549)
>         at
> org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:234)
>         at
> org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:545)
>         at
> org.hibernate.collection.internal.PersistentBag.removeAll(PersistentBag.java:345)
>
>
>
>
>
> Stacktrace 2 (we have this one even if we disable the batch loading):
>
> Caused by: java.lang.NullPointerException
>         at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:259)
>         at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
>         at
> org.hibernate.event.internal.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:160)
>         at
> org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:151)
>         at
> org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
>         at
> org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
>         at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1213)
>         at
> org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:986)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at
> org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
>         at $Proxy115.flush(Unknown Source)
>
>
> Thanks for your feedback.
>
> --
> Guillaume