hi All,

I am using hibernate3. in my program many threads are accessing and updating database.
I am using mysql db. I am getting this exception. plz help me..

java.util.ConcurrentModificationException
at org.apache.commons.collections.SequencedHashMap$OrderedIterator.next(Unknown Source)
at org.hibernate.util.IdentityMap.entryArray(IdentityMap.java:194)
at org.hibernate.util.IdentityMap.concurrentEntries(IdentityMap.java:59)
at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:104)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:59)
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:39)
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:650)
at org.hibernate.impl.SessionImpl.prepareQueries(SessionImpl.java:825)
at org.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:815)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:773)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
at com.synthesistool.dataaccess.job.JobDAO.getJob(Unknown Source)
at com.synthesistool.jobprocessing.JobHandler.run(Unknown Source)[/b][/list]