@Nullable
  private static String parseWorkingDirectory(@NotNull List<String> stdoutLines, int pid) {
    boolean pidEncountered = false;
    for (String line : stdoutLines) {
      if (line.startsWith("p")) {
        int p = StringUtil.parseInt(line.substring(1), -1);
        pidEncountered |= p == pid;
      }
      else if (pidEncountered && line.startsWith("n")) {
        return line.substring(1);
      }
    }
    return null;
  }
@Nullable
  private static String parseWorkingDirectory(@NotNull List<String> stdoutLines, int pid)