[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2442) ClassCastException loading from second level cache
Marcio Moraes (JIRA)
noreply at atlassian.com
Sat Feb 24 16:47:31 EST 2007
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2442?page=comments#action_26286 ]
Marcio Moraes commented on HHH-2442:
------------------------------------
I found the issue, depending how the entity was loaded (find, query, ManyToOne, etc) CacheEntry has assembledState (Serializable[]) mounted different ... And if the get from cache was done from another way we get a ClassCastException ...
The CacheEntry assembledState depends on the order of the select was done ...
> ClassCastException loading from second level cache
> --------------------------------------------------
>
> Key: HHH-2442
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2442
> Project: Hibernate3
> Type: Bug
> Components: core
> Versions: 3.2.1, 3.2.2, 3.2.0.ga
> Environment: Linux 2.6.15-27-686 #1 SMP PREEMPT Fri Dec 8 18:00:07 UTC 2006 i686 GNU/Linux
> Reporter: Marcio Moraes
> Priority: Blocker
>
>
> I'm getting a error when using hibernate 3.2.2.ga with cache (JBoss-Cache) cluster.
> When hibernate get a entity from second level cache it confuses the arrays of values against array of types.
> So in some situations i got ClassCastException ...
> Looking up CacheEntry code at assemble method i saw:
> private static Object[] assemble(
> final Serializable[] values,
> final Object result,
> final Serializable id,
> final EntityPersister persister,
> final Interceptor interceptor,
> final EventSource session)
> throws HibernateException {
> //assembled state gets put in a new array (we read from cache by value!)
> Object[] assembledProps = TypeFactory.assemble(
> values,
> persister.getPropertyTypes(),
> session, result
> );
> The issue is values (Serializeble[]) is in wrong order compared with persister.getPropertyTypes() (Type[]).
> If only one cache instance is running it doesnt occurs ...
> I am using Linux.
> Att,
> Márcio Moraes
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