Hi i'm having a problem in hibernate when i try to update the version number during an "update". Ideally hibernate should increment it auotmatically but its not doing so. i'm getting this error.

[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R java.lang.NullPointerException
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.type.IntegerType.next(IntegerType.java:57)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.engine.Versioning.increment(Versioning.java:25)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.event.def.DefaultFlushEntityEventListener.getNextVersion(DefaultFlushEntityEventListener.java:262)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:140)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
[6/11/07 12:11:14:168 IST] 1bcaf293 SystemErr R at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)


Can someone help me with this?

Hi,
>> Ideally hibernate should increment it auotmatically but its not doing so.
Check if, <version generated="never" />

>> Error ( Null Pointer Exception )
You get this error if version field is set to null when the update is fired.
Check the value before update.

If these don't work, post the mappings and query.

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Hey thanks pramod..its working now! :)