docs: private String getLevelsPath(final URI rootTemp) {
          final int u = rootTemp.toString().split(URI_SEPARATOR).length - 1;
          if (u == 0) {
              return "";
          }
          final StringBuilder buff = new StringBuilder();
          for (int current = u; current > 0; current--) {
              buff.append("..").append(File.separator);
          }
          return buff.toString();
      }