return Collections.EMPTY_LIST;
return null;
    private List parseAliases(File file) {        try {            return (List) m_digester.parse(file);        } catch (IOException e) {            LOG.warn("Errors when reading aliases file.", e);        } catch (SAXException e) {            LOG.warn("Errors when parsing aliases file.", e);        }        return Collections.EMPTY_LIST;    }