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[eclipselink-users] Unrecognized persistence provider

I'm trying to figure out a puzzling exception in my app. I'm using Eclipslink
for JPA. I have the line
   <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
in my persistence.xml. However, I'm getting an exception when I reach the
line
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("LetterPU", map);

The exception trace is:

WARNING: Found unrecognized persistence provider
"org.eclipse.persistence.jpa.PersistenceProvider" in place of OpenJPA
provider.  This provider's properties will not be used.
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/openjpa/enhance/PersistenceCapable
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
        at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:288)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at
org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.loadClass(PersistenceUnitProcessor.java:261)
        at
org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.initPersistenceUnitClasses(MetadataProcessor.java:247)
        at
org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processEntityMappings(MetadataProcessor.java:422)
        at
org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:296)
        at
org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:830)
        at
org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:101)
        at
org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initPersistenceUnits(JPAInitializer.java:149)
        at
org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.initialize(JPAInitializer.java:135)
        at
org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:104)
        at
org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:64)
        at
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
        at
com.magicballbingo.yboard.Main.initializePersistence(Main.java:166)
        at com.magicballbingo.yboard.Main.main(Main.java:54)
Caused by: java.lang.ClassNotFoundException:
org.apache.openjpa.enhance.PersistenceCapable
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
        ... 25 more


Now, I've never used or called for OpenJPA. I don't have any idea what's
trying to load OpenJPA or why. My only imports are:

import java.io.FileReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.persistence.Persistence;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;

import javax.jms.ConnectionFactory;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

import org.eclipse.persistence.config.PersistenceUnitProperties;

        

Any ideas?


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