IMetaStore metastore = OrionConfiguration.getMetaStore();
List<String> keys = new ArrayList<String>();
keys.add(UserConstants2.EMAIL);
keys.add(UserConstants2.OAUTH);
keys.add(UserConstants2.OPENID);
metastore.registerUserProperties(keys);
Logger logger = LoggerFactory.getLogger("org.eclipse.orion.server.config"); //$NON-NLS-1$
if (logger.isDebugEnabled()) {
logger.debug("Started orion server authentication."); //$NON-NLS-1$
}