log.debug("no extension found");
    public static String getExtensionForType (String type) {        // public methods using param must make sure the propfile is loaded        if (param == null) {            readProperties();	}        // find first match	for (Iterator it = param.keySet().iterator(); it.hasNext();) {            String key = (String) it.next();            if (type.equals(param.getProperty(key))) {                return getExtensionFromFilename(key);            }        }        return null;    }