code: public static List<String> getAvailableLocaleSuffixesForBundle(String messageBundlePath, String fileSuffix) {
  		return getAvailableLocaleSuffixesForBundle(messageBundlePath, fileSuffix, null);
  	}
docs: Returns the list of available locale suffixes for a message resource
  bundle
  
  @param messageBundlePath
  the resource bundle path
  @param fileSuffix
  the file suffix
  @return the list of available locale suffixes for a message resource
  bundle