org.hibernate.StaleObjectStateException

I got this error when I had two sessions open to two datasources. I was reading from one session and writing to the other session. This problem was solved when i used the replicate() method instead of the persist() method.


Another time, I was trying to read from an object after I had done an update() on it.

org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction 
(or unsaved-value mapping was incorrect): [com.myCompany.myApp.beans.MyBean#5104]
     at org.hibernate.persister.entity.BasicEntityPersister.check(BasicEntityPersister.java:1416)
     at org.hibernate.persister.entity.BasicEntityPersister.update(BasicEntityPersister.java:1956)
     at org.hibernate.persister.entity.BasicEntityPersister.updateOrInsert(BasicEntityPersister.java:1880)
     at org.hibernate.persister.entity.BasicEntityPersister.update(BasicEntityPersister.java:2120)
     at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:75)
     at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239)
     at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:223)
     at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:137)
     at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
     at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
     at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:669)
     at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:293)
     at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86)