Running two "New root bioassay set" jobs at the same time makes the second to finish crash

[Nicklas Nordborg]

Moved from ​http://base.thep.lu.se/ticket/1224.

This is at least true or affymetrix. I wanted to create two new root bioassay sets by runnign two different plugins. The first to finish ended succesfully, the second finished with the below message. Nothing strange really but can it be avoided?

Error: Permission denied: The item RawBioAssay[id=14538] was modified by another transaction. 

net.sf.basedb.core.ItemModifiedException: Permission denied: The item RawBioAssay[id=14538] was modified by another transaction.
at net.sf.basedb.core.HibernateUtil.commit(HibernateUtil.java:1025)
at net.sf.basedb.core.DbControl.commit(DbControl.java:410)
at se.lu.thep.affymetrix.AbstractExternalBinaryPlugin.run(AbstractExternalBinaryPlugin.java:264)
at net.sf.basedb.core.PluginExecutionRequest.invoke(PluginExecutionRequest.java:106)
at net.sf.basedb.clients.jobagent.executors.ThreadJobExecutor.executeJob(ThreadJobExecutor.java:109)
at net.sf.basedb.clients.jobagent.executors.ThreadJobExecutor.main(ThreadJobExecutor.java:202)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [net.sf.basedb.core.data.RawBioAssayData#14538]
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1792)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2435)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2335)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2635)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:115)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:168)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:365)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
at net.sf.basedb.core.HibernateUtil.commit(HibernateUtil.java:1016)
... 5 more