hi,

you should only close the persistence manager when your done.
This error occurs because you try to close it a second time.
Once you do the pm.close() all the data will be updated

2010/4/8 Arny <[email protected]>

> Hi,
>
> I'm getting an JDO/Nucleus exception when running 2 synchronous
> requests on different ids of an object:
> org.datanucleus.exceptions.NucleusUserException: Object Manager has
> been closed
>
> -----------
> This is how my getById looks like:
>
>                PersistenceManager pm = getPM();
>                Stream stream = null;
>                try {
>                        Stream tmp = pm.getObjectById(Stream.class, id);
>                        stream = pm.detachCopy(tmp);
>                } finally {
>                        pm.close(); // here the exception occurs
>                }
>                return stream;
>
> -----------
>
> It works fine on single request, but fails on 2 or more.
> anyone know how to get around this?
>
> Thanks
>
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