IdTransferringMergeEventListener not working?

Hello list readers, 
 
I'm wondering if I have this right -- here is my problem, I'm trying to
get the id assigned to an entity from an Oracle Sequence after an
insert.  This is in a Unit Test that extends AbstractJpaTests...

I'm using JPA backed by Hibernate 3.3.1.
 
My persistence session factory is as such:
 
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean" 
	p:dataSource-ref="dataSource">
	<property name="configLocation"
value="WEB-INF/classes/hibernate.cfg.xml"/>
	<property name="eventListeners">
		<map>
			<entry key="merge">
				<bean
class="org.springframework.orm.hibernate3.support.IdTransferringMergeEve
ntListener"/>
			</entry>
		</map>
	</property>
</bean>

Shouldn't the idTransferringMergeEventListener set the id propoerty on
my managed instance after an insert?

This test always fails...
	
	dao.save(expected);
	sharedEntityManager.flush();
		
	// ensure ID was assigned
	Integer id = expected.getId();
	assertNotNull("No ID was assigned to the instance", id);

Any reply would be appreciated!

MG

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