We need a proper implementation of JPA getPersistenceUnitRootUrl(): " javax.persistence.spi.PersistenceUnitInfo.getPersistenceUnitRootUrl() Returns the URL for the jar file or directory that is the root of the persistence unit. (If the persistence unit is rooted in the WEB-INF/classes directory, this will be the URL of that directory.) The URL will either be a file: URL referring to a jar file or referring to a directory that contains an exploded jar file, or some other URL from which an InputStream in jar format can be obtained. " VFSFile.getPhysicalFile() doesn't seem to extract the children, so that isn't helpful by itself. Do we have something like VFSFile.getPhysicalFile() that gets a physical file representation of all of the files in a deployment root? Scott