hi Jett, sorry for the late reply.
My persistence.xml is:
<persistence version="2.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_2_0.xsd" xmlns:orm="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/JbpmDS</jta-data-source>
<mapping-file>META-INF/JBPMorm-JPA2.xml</mapping-file>
<class>org.drools.persistence.info.SessionInfo</class>
<class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.info.WorkItemInfo</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
<!-- property name="hibernate.show_sql" value="true" /> -->
<property name="hibernate.hbm2ddl.auto" value="create" />
<property name="hibernate.jdbc.use_streams_for_binary" value="true" />
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup" />
</properties>
</persistence-unit>
</persistence>
the only change I made in the end was the addition of the mapping file line. The pom file (slightly abridged) is
Hope this is of some help.
I seem to have it all working fine in a 7.2.0 Alpha version of the appserver when built against the 7.1.1.Final version of the jboss packages. The pom (above) doesn't have the version numbers as these come from the parent pom and mostly from the jboss org.jboss.as:jboss-as-parent:7.1.1.Final maven package.