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From Raul Lapeira <>
Subject Re: Problem using Hibernate as my persistence provider
Date Fri, 20 Nov 2009 11:57:18 GMT
Could it be something about using two different JVM's?.

If so please make sure that the jar is in tomcat and openEJB. gave the following info when i searched: 

When this error is arisen usually the reason is a problem with the 
transaction provider being used, there are several ways to workaround 
it, on of them is setting the value of the hibernate.transaction.manager 
lookup class property in order to use the container transaction manager.

As usual another possible reason is a lacking library in the application 
or container lib directory.

David Blevins escribió:
> On Nov 19, 2009, at 6:19 AM, Martin Elkjær wrote:
>> I'm trying to use Hibernate as my persistence provider. All my 
>> unittests are
>> working fine, but when I try to deploy to my Tomcat/OpenEJB server i 
>> get the
>> following exception in openejb.log:
>> java.lang.NoClassDefFoundError:
>> org/hibernate/transaction/TransactionManagerLookup
>> This class is in hibernate-core.jar which is deployed in my WEB-INF/lib
>> folder, so I'm a bit confused......
> If you move the hibernate jars to the tomcat/lib directory it should 
> work fine.
> -David

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