code: public static final String createMsg(ListResourceBundle fResourceBundle,
  	String msgKey, Object args[])  //throws Exception
    {
  
      String fmsg = null;
      boolean throwex = false;
      String msg = null;
  
      if (msgKey != null)
        msg = fResourceBundle.getString(msgKey);
  
      if (msg == null)
      {
        msg = fResourceBundle.getString(BAD_CODE);
        throwex = true;
      }
  
      if (args != null)
      {
        try
        {
  
          // Do this to keep format from crying.
          // This is better than making a bunch of conditional
          // code all over the place.
          int n = args.length;
  
          for (int i = 0; i < n; i++)
          {
            if (null == args[i])
              args[i] = "";
          }
  
          fmsg = java.text.MessageFormat.format(msg, args);
        }
        catch (Exception e)
        {
          fmsg = fResourceBundle.getString(FORMAT_FAILED);
          fmsg += " " + msg;
        }
      }
      else
        fmsg = msg;
  
      if (throwex)
      {
        throw new RuntimeException(fmsg);
      }
  
      return fmsg;
    }
docs: Creates a message from the specified key and replacement
  arguments, localized to the given locale.
  
  @param fResourceBundle The resource bundle to use.
  @param msgKey  The message key to use.
  @param args      The arguments to be used as replacement text
  in the message created.
  
  @return The formatted message string.