@Override
    public JsonObject upgrade(final JsonObject outdatedDBEntry, Map<File, JsonObject> dbSnapshot) {
        return rename(outdatedDBEntry, newName, path);
    }
@ Override public JsonObject upgrade ( final JsonObject outdatedDBEntry , Map < File , JsonObject > dbSnapshot ) { return rename ( outdatedDBEntry , newName , path ) ; }
Generic renaming.

@param outdatedDBEntry the outdated db entry where the upgrade should be applied to.
@param dbSnapshot      all entries of the current database which may are partially upgraded.

@return the updated value.