class ZkclientZookeeperClient extends AbstractZookeeperClient<IZkChildListener> {

    @Override
    public boolean checkExists(String path) {
        try {
            return client.exists(path);
        } catch (Throwable t) {
            logger.error("zookeeper failed to check node existing with " + path + ": ", t);
        }
        return false;
    }

    public  ZkclientZookeeperClient(URL url);

}