Is it possible to configure JBoss to install multiple persistence units with the same name that are scoped to different web applications?

Issue

• Two war files have the same JPA persistence unit named "drift" deployed in their WEB-INF/lib directory.  When these war files are deployed to the same JBoss instance the following exception is thrown.

        Unable to register deployment mbean org.jboss.metadata.jpa.spec.PersistenceUnitMetaData.drift
        javax.management.InstanceAlreadyExistsException: jboss.deployment:id="org.jboss.metadata.jpa.spec.PersistenceUnitMetaData.drift",type=Component already registered.
             at org.jboss.mx.server.registry.BasicMBeanRegistry.add(BasicMBeanRegistry.java:756)
             at org.jboss.mx.server.registry.BasicMBeanRegistry.registerMBean(BasicMBeanRegistry.java:233)
             at sun.reflect.GeneratedMethodAccessor75.invoke(Unknown Source)
             at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
             at java.lang.reflect.Method.invoke(Method.java:597)
        ...

• Is it possible to configure JBoss to install multiple persistence units with the same name that are scoped to different web applications?