[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-6162) SessionFactory in QueryKey

[Steve Ebersole (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-6162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Ebersole updated HHH-6162:
--------------------------------

    Priority: Major  (was: Blocker)

Not blocker nor critical.  Name the SF as a workaround

> SessionFactory in QueryKey
> --------------------------
>
>                 Key: HHH-6162
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6162
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.6.2, 4.0.0.Alpha1, 3.6.3, 4.0.0.Alpha2
>         Environment: Hibernate 3.6.2, Postgresql 8.3 
>            Reporter: Pawel Omelko
>
> I guess that after improvement HHH-5138, a ManyToOneType.java (and many other types) has reference to SessionFactory (by TypeFactory.TypeScope scope field). And now QueryKey, which contains Type[] positionalParameterTypes field, contains also SessionFactory - eg. ManyToOneType. So now we can find SessionFactory in QueryCache elements, which unnecessarily increase memory usage. There is another problem when cache replication is used (ehcache via RMI), I've got an exception during SessionFactory deserialization in receiver node:
> Apr 27 06:17:58 WARN net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator:320  - Unable to send message to remote peer.  Message was: null
> Apr 27 06:17:58 java.lang.NullPointerException
> Apr 27 06:17:58 at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)
> Apr 27 06:17:58 at org.hibernate.impl.SessionFactoryObjectFactory.getNamedInstance(SessionFactoryObjectFactory.java:159)
> Apr 27 06:17:58 at org.hibernate.impl.SessionFactoryImpl.readResolve(SessionFactoryImpl.java:753)
> Apr 27 06:17:58 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> Apr 27 06:17:58 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> Apr 27 06:17:58 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> Apr 27 06:17:58 at java.lang.reflect.Method.invoke(Method.java:597)
> Apr 27 06:17:58 at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1061)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> Apr 27 06:17:58 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> Apr 27 06:17:58 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
> Apr 27 06:17:58 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
> Apr 27 06:17:58 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
> Apr 27 06:17:58 at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
> Apr 27 06:17:58 at org.hibernate.cache.QueryKey.readObject(QueryKey.java:192)

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