@Any mapping fails during configuration: "@Any requires an explicit @JoinColumn(s)"

When I try to apply the @Any annotation, I get the following exception:

ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] Error installing to Start: name=persistence.units:jar=test-build.jar,unitName=blueserve state=Create
org.hibernate.AnnotationException: @Any requires an explicit @JoinColumn(s): com.builderadius.blueserve.model.Note.noteOwner
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1201)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:739)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:501)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:282)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1115)
at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1195)
at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:149)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:814)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:412)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:126)
at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:259)

See the forum posting http://forum.hibernate.org/viewtopic.php?p=2403045 for another description of this problem. That thread suggests the problem is with EJB3OverridenAnnotationReader not adding properties annotated with @JoinColumn if xml mapping files exist.

My code is:

@Any(metaColumn = @Column(name = "RelatedRecType"))
@AnyMetaDef(idType = "integer", metaType = "string", metaValues = {
@MetaValue(targetEntity = Approval.class, value = "approval"),
@MetaValue(targetEntity = ZoningPermit.class, value = "zoningpermit") })
@JoinColumn(name = "RelatedRecNum", nullable = false)
public BlueserveEntity getNoteOwner()
{
return this.noteOwner;
}

An orm.xml file (auto-generated by seam-gen) exists in this project, though it has no entity mappings and there are no other hbm.xml files. When I remove this file, I no longer receive the exception (that's not a long-term solution).