openJPA configured not persisting - openjpa

Question

I have a very minimal test that properly configures openJPA, JTA, database connectivity, enhancement and emits no exceptions however it does not persist with the simple code below. What more do I need to show or what is necessary beyond the simple statements to actually write records to the db?
public class Manipulation00 {
public Manipulation00(){}
public void startUp(ServletContext sc){
EntityManagerFactory emf =
(EntityManagerFactory)sc.getAttribute("emf");
EntityManager em = emf.createEntityManager();
Exemptions00 exempt00 = new Exemptions00();
exempt00.setUpc("722430001166");
exempt00.setDesc("KOMBUCHA,OG2,SEASONAL");
em.persist(exempt00);
}
}
the persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="ediExemptions" transaction-type="JTA">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>java:app/ediExemptions</jta-data-source>
<class>tng.db02.Exemptions00</class>
<properties>
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO"/>
<property name="openjpa.jdbc.SynchronizeMappings"
value="buildSchema"/>
<property name="openjpa.ConnectionURL"
value="jdbc:derby://localhost:1527/ediExemptions"/>
<property name="openjpa.ConnectionDriverName"
value="org.apache.derby.jdbc.ClientDriver"/>
<property name="openjpa.ConnectionUserName"
value="root"/>
<property name="openjpa.ConnectionPassword"
value="admin"/>
</properties>
</persistence-unit>
</persistence>

Answer 1

I'd guess that your transaction isn't being committed.