docs: public static Map<String,Locale> getEnabledLocales(ServletRequest request) {
  		@SuppressWarnings("unchecked")
  		Map<String,Locale> enabledLocales = (Map<String,Locale>)request.getAttribute(ENABLED_LOCALES_REQUEST_ATTRIBUTE_KEY);
  		if(enabledLocales==null) throw new IllegalStateException("Not in request filtered by LocaleFilter, unable to get enabled locales.");
  		return enabledLocales;
  	}