if (CollectionUtils.safeIsEmpty(m_aliases)) { return Collections.EMPTY_LIST; }
    public List getAliasMappings(String domainName) {        if (CollectionUtils.safeIsEmpty(m_aliases)) {            return Collections.EMPTY_LIST;        }        final String contact = getUri(domainName);        List mappings = new ArrayList(m_aliases.size());        for (Iterator iter = m_aliases.iterator(); iter.hasNext();) {            String alias = (String) iter.next();            if (StringUtils.isBlank(alias)) {                throw new RuntimeException("Found an empty alias for user " + m_userName);            }            final String identity = AliasMapping.createUri(alias, domainName);            AliasMapping mapping = new AliasMapping(identity, contact);            mappings.add(mapping);        }        return mappings;    }