code: private UUID getUUID(UUID uuid, String name)
     {
        return uuid == null ? UUID.nameUUIDFromBytes(name.getBytes()) : uuid;
     }
docs: Utility method. In some cases older compressed PPX files only have a name (or other string attribute)
  but no UUID. This method ensures that we either use the UUID supplied, or if it is missing, we
  generate a UUID from the name.
  
  @param uuid uuid from object
  @param name name from object
  @return UUID instance