jodd-joy/src/main/java/jodd/joy/i18n/LocalizationUtil.java
public static void setSessionLocale(final HttpSession session, final String localeCode) {
		if (log.isDebugEnabled()) {
			log.debug("Locale stored to session: " + localeCode);
		}
		Locale locale = Locale.forLanguageTag(localeCode);
		session.setAttribute(SESSION_LOCALE_ATTR, locale);
	}
public static void setSessionLocale(final HttpSession session, final String localeCode) {
		if (log.isDebugEnabled()) {
			log.debug("Locale stored to session: " + localeCode);
		}
		Locale locale = Locale.forLanguageTag(localeCode);
		session.setAttribute(SESSION_LOCALE_ATTR, locale);
	}
Saves Locale to HTTP session.