I tried with the latest code (as of yesterday) and I wasn't able to reproduce it.
I did make a couple of classpath changes and I only tried with Derby. Were you using MySQL by any chance? -mike On Tue, Aug 24, 2010 at 8:53 AM, Kevin Sutter <[email protected]> wrote: > Hi, > I'm using the OpenBooks sample for a demo and I periodically hit an > Optimistic Lock Exception while loading the database: > > ant -f run.xml load > > This doesn't happen every time, but often enough to have me post this > question and see if this is a known issue. > > [java] Caused by: <openjpa-2.1.0-SNAPSHOT-r422266:988223M nonfatal > store error> org.apache.openjpa.persistence.OptimisticLockException: An > optimistic lock violation was detected when flushing object instance > "openbook.domain.Inventory-U0205-90" to the data store. This indicates > that > the object was concurrently modified in another transaction. > [java] FailedObject: openbook.domain.Inventory-U0205-90 > > Any ideas? > > Kevin >
