code: public CmsMessages getMessages(String bundleName, String language, String defaultLanguage) {
  
          return getMessages(bundleName, language, "", "", defaultLanguage);
      }
docs: Generates an initialized instance of {@link CmsMessages} for
  convenient access to localized resource bundles.<p>
  
  @param bundleName the name of the ResourceBundle to use
  @param language language identifier for the locale of the bundle
  @param defaultLanguage default for the language, will be used
  if language is null or empty String "", and defaultLanguage is not null
  @return CmsMessages a message bundle initialized with the provided values