[hibernate-dev] DuplicateMappingException in ORM 4.3.6.Final

[Scott Marlow]

I'm working on an application server bug fix that I need some advice 
with, as Hibernate ORM 4.3.6.Final is throwing a 
"o.h.DuplicateMappingException: Duplicate query mapping 
EventManager.MyEvents" after I fixed a jar-file reference bug in WildFly 
(when I try to deploy a test case).

Prior to my jar-file bug fix, the jar-file URL was incorrectly pointing 
at the wrong location (zero files were returned when file url was 
accessed).  As a result, entities were loaded only once from the ear/lib 
jar.  Now, with my bug fix (getJarFileUrls now returns a valid URL for 
jar-file) , WildFly is getting the DuplicateMappingException because the 
entity is loaded twice (even though *exclude-unlisted-classes* is in the 
persistence unit).

I would like to resolve the DME before back porting the "jar-file" 
(WildFly) bug fix.  I didn't see this behaviour in my ORM 4.2.x testing 
(with EAP).

By the way, the getPersistenceUnitRootUrl is the test.ear.

test.ear contents:

lib
   test-entities.jar
META-INF
   application.xml
   MANIFEST.MF
   persistence.xml
test-ejb.jar

persistence.xml contents:

   <persistence-unit name="jboss-eap-hibernate" transaction-type="JTA">
   <jar-file>lib/test-entities.jar</jar-file>
   <exclude-unlisted-classes/>
   </persistence-unit>

test-entities.jar contents:

META-INF
    Event.hbm.xml

EventManager entity class
Event entity class

Event.hbm.xml contents:

   <hibernate-mapping package="support.jboss.ejb.entity">
   <sql-query name="EventManager.MyEvents">
     <load-collection alias="manages" role="EventManager.manages" />
     SELECT * FROM EVENT e where e.manager = ?
   </sql-query>

Thanks,
Scott