docs: public static InetAddress[] getInetAddressArray ( Properties props, String key, String delim, InetAddress[] def ) {
          String p = props.getProperty(key);
          if ( p != null ) {
              StringTokenizer tok = new StringTokenizer(p, delim);
              int len = tok.countTokens();
              InetAddress[] arr = new InetAddress[len];
              for ( int i = 0; i < len; i++ ) {
                  String addr = tok.nextToken();
                  try {
                      arr[ i ] = InetAddress.getByName(addr);
                  }
                  catch ( UnknownHostException uhe ) {
                      log.error("Unknown host " + addr, uhe);
                      return def;
                  }
              }
              return arr;
          }
          return def;
      }