protected SEPersistenceUnitInfo findPersistenceUnitInfoInArchives(String puName, Map m) {
        SEPersistenceUnitInfo persistenceUnitInfo = null;
        // mkeith - get resource name from prop and include in subsequent call
        String descriptorPath = (String) m.get(PersistenceUnitProperties.ECLIPSELINK_PERSISTENCE_XML);
        final Set<Archive> pars;
        if (descriptorPath != null) {
            pars = PersistenceUnitProcessor.findPersistenceArchives(initializationClassloader, descriptorPath);
        } else {
            pars = PersistenceUnitProcessor.findPersistenceArchives(initializationClassloader);
        }
        try {
            for (Archive archive: pars) {
                persistenceUnitInfo = findPersistenceUnitInfoInArchive(puName, archive, m);
                if(persistenceUnitInfo != null) {
                    break;
                }
            }
        } finally {
            for (Archive archive: pars) {
                archive.close();
            }
        }
        return persistenceUnitInfo;
    }