code: public void setLocale(final Locale locale) {
          if (!equals(this.locale, locale)) {
              this.locale = locale;
              super.setValue(toString(locale));
              i18nBundleProvider.reloadBundles(locale);
          }
      }
docs: Reloads {@link com.badlogic.gdx.utils.I18NBundle i18n bundles} managed by the application if the locale changed.
  
  @param locale will become current locale.