code: public static String getLocalizedBundleName(String bundleName, String localeKey) {
  
  		String newName = bundleName;
  		int idxSeparator = bundleName.lastIndexOf('.');
  		if (StringUtils.isNotEmpty(localeKey) && idxSeparator != -1) {
  			newName = bundleName.substring(0, idxSeparator);
  			newName += '_' + localeKey;
  			newName += bundleName.substring(idxSeparator);
  		}
  
  		return newName;
  	}
docs: Returns the localized bundle name
  
  @param bundleName
  the bundle name
  @param localeKey
  the locale key
  @return the localized bundle name