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From Rick Curtis <>
Subject Re: Unmanaged Object Problems
Date Mon, 05 Apr 2010 20:05:13 GMT
Daryl I'm not entirely sure I follow your last email. My understanding of
the problem is that we are trying to merge a detached entity that has a
relationship to an entity which is in a different persistence context. I'm
quite certain that OpenJPA doesn't allow you to share entities across
multiple persistence contexts so having two threads sharing the same entity
should be a non issue... unless we were to fix/allow that.

On Mon, Apr 5, 2010 at 2:15 PM, Daryl Stultz <> wrote:

> On Mon, Apr 5, 2010 at 2:45 PM, Rick Curtis <> wrote:
> > I believe that OpenJPA should be throwing an exception as
> > pasted below, rather then the one that you are seeing.
> >
> I agree that a better message is needed and there was certainly a problem
> with my code. However, I'm wondering if there is still a general race
> condition problem? Suppose 2 threads are slamming in EntityA records, all
> with a reference to a single EntityB record. Would the possibility of this
> exception being triggered be pretty high?
> --
> Daryl Stultz
> _____________________________________
> 6 Degrees Software and Consulting, Inc.

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