private String _postStatusMessage(String objectId, String message) throws FacebookException {
        JSONObject json = post(buildEndpoint(objectId, "feed"),
                            new HttpParameter[] {new HttpParameter("message", message)}
                          ).asJSONObject();
        try {
            return json.getString("id");
        } catch (JSONException jsone) {
            throw new FacebookException(jsone.getMessage(), jsone);
        }
    }