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From "Pinaki Poddar" <>
Subject RE: Testing an OpenJPA module
Date Tue, 10 Apr 2007 20:54:20 GMT
The error message could have been more specific in the following way:
a) no META-INF/persistence.xml has not been found in classpath
b) META-INF/persistence.xml has been found but there is no 'ode-store'
unit defined in it.
c)  META-INF/persistence.xml has been found but provider can not be

When I first encountered this error, my interpreation was (b) from the
way the message was worded.

Pinaki Poddar
BEA Systems

-----Original Message-----
From: [] On Behalf Of Jacek
Sent: Tuesday, April 10, 2007 2:52 PM
Subject: Re: Testing an OpenJPA module

On 4/10/07, Marc Prud'hommeaux <> wrote:
> Glad you got it fixed. It's annoying that 
> javax.persistence.Persistence doesn't provide more of a clue as to why

> it failed.

I wonder what else you'd like to see other than what's already printed
out? It tells exactly why it's failed - "No Persistence provider for
EntityManager named ode-store" is just a JPA version of
"NoClassDefFoundError" in "pure" Java.


Jacek Laskowski

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