return null;
    public SVNLock getLock(String path) throws SVNException {        try {            openConnection();            path = getRepositoryPath(path);            Object[] buffer = new Object[] { "get-lock", path };            write("(w(s))", buffer);            authenticate();            read("[((?L))]", buffer);            return (SVNLock) buffer[0];        } finally {            closeConnection();        }    }