for (URL url : persistenceUnitInfo.getJarFileUrls()) {
classNames.addAll(PersistenceUnitProcessor.getClassNamesFromURL(url, m_loader, null));
}
// Add all the classes off the classpath at the persistence unit root url.
if (! persistenceUnitInfo.excludeUnlistedClasses()) {
classNames.addAll(PersistenceUnitProcessor.getClassNamesFromURL(persistenceUnitInfo.getPersistenceUnitRootUrl(), m_loader, m_predeployProperties));
}
// 5 - Go through all the class names we found and add those classes
// that have not yet been added. Be sure to check that the accessor