@Override
  public @NonNls String toString() {
    String initialHeadPositions = StringUtil.join(myInitialHeadPositions.keySet(),
                                                  repository -> DvcsUtil.getShortRepositoryName(repository) + ": " + myInitialHeadPositions.get(repository), ", ");
    String statuses = StringUtil.join(myStatuses.keySet(),
                                      repository -> DvcsUtil.getShortRepositoryName(repository) + ": " + myStatuses.get(repository), ", ");
    return String.format("{Params: [%s].\nInitial positions: %s.\nStatuses: %s.\nSaver: %s}", myParams, initialHeadPositions, statuses, mySaver);
  }
@Override
  public @NonNls String toString()