/**
   * Release the tryClaim of the coordinate. It means that nobody owns the coordinate anymore.
   * Requires that that this instance owns the tryClaim to the coordinate.
   */
  public void releaseClaim() throws CloudnameException {
    scheduler.shutdown();
    zkClient.deregisterListener(this);

    while (true) {
      final TrackedConfig config;
      synchronized (trackedConfigList) {
        if (trackedConfigList.isEmpty()) {
          break;
        }
        config = trackedConfigList.remove(0);
      }
      config.stop();
    }

    sendEventToCoordinateListener(
        CoordinateListener.Event.NOT_OWNER, "Released claim of coordinate");

    synchronized (lastStatusVersionMonitor) {
      try {
        zkClient.getZookeeper().delete(path, lastStatusVersion);
      } catch (InterruptedException e) {
        throw new CloudnameException(e);
      } catch (KeeperException e) {
        throw new CloudnameException(e);
      }
    }
  }
 public void deregisterCoordinateListener(final CoordinateListener coordinateListener) {
   coordinateListenerList.remove(coordinateListener);
 }