r.readContentStream();
r.getContent(); fis.close();
    public Request readRequest(String id) throws StoreException {        File f = new File(_dir + "conversations/" + id + "-request");        FileInputStream fis = null;        try {            fis = new FileInputStream(f);        } catch (FileNotFoundException fnfe) {            return null;        }        Request r = new Request();        try {            r.read(fis);            r.readContentStream();        } catch (IOException ioe) {            throw new StoreException("IOException reading request(" +id + ") : " + ioe);        }        return r;    }