This is my persistence.xml file...
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="advisor-domain-pu" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>jdbc/AdvisorSkeletonDataSource</jta-data-source>
<properties>
<property name="openjpa.TransactionMode" value="managed" />
<property name="openjpa.ConnectionFactoryMode" value="managed" />
<property name="openjpa.jdbc.EagerFetchMode" value="join" />
<property name="openjpa.jdbc.SubclassFetchMode" value="join" />
</properties>
</persistence-unit>
</persistence>