How do I use openjpa2.0 instead of openjpa1.0

I use openjpa1.0 provider in weblogic10.3.4 before.
now I want use openjpa2.0 instead of openjpa1.0.
I according to this article (http://wiki.eclipse.org/EclipseLink/Development/JPA_2.0/weblogic#Problem_2:_JPA_2.0_persistence.xml_XSD_Enablement) to enable jpa2.0 .
but failed. it throws exception:
what do i do: seems an odd quirk of the EJB spec. The exception is:java.lang.AbstractMethodError: org.apache.openjpa.persistence.EntityManagerImpl.getMetamodel()Ljavax/persistence/metamodel/Metamodel;
at com.bea.core.repackaged.springframework.jee.intercept.MethodInvocationInvocationContext.proceed(MethodInvocationInvocationContext.java:111)
I try to delete openjpa1.0 jar file from modules directory.
the servier throws java.lang.NoClassDefFoundError org/apache/openjpa/conf/OpenJPAVersion
it seems the weblogic can't load the openjpa2.0 jar.
can somebody help me?

Hi,
My page quoted above is mostly for older versions of WebLogic 10.3.3.0 and below that could not handle container managed JPA 2.0 injection. For WebLogic 10.3.5.0 and 10.3.4.0 JPA 2.0 is fully functional but will need to be enabled (the best way is to install OEPE, create a server profile to your WebLogic 10.3.4/10.3.4 instance - and select the "Java Persistence 2.0 - Install" link on the dialog in the Eclipse IDE). However, Kodo (based on OpenJPA) is not actively developed. I would switch to EclipseLink which is the Java EE 6 reference implementation. You can do this by changing the default persistence provider in the console from Kodo to TopLink (wraps EclipseLink) or specifying the provider in your persistence.xml.
The link you quote is the section for WebLogic 10.3.3.0
What you need is the new section I wrote in Jan 2011 for the 10.3.4.0
http://wiki.eclipse.org/EclipseLink/Development/JPA_2.0/weblogic#20110115:_JPA_2.0_using_EclipseLink_on_WebLogic_10.3.4.0
See my tutorials for details - where you can also see the source.
http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial
http://wiki.eclipse.org/EclipseLink/Examples/Distributed
thank you
Michael O'Brien
http://www.eclipselink.org

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