public synchronized List<Integer> getTombstones(long lastSync) throws ServiceException {
public synchronized List<Integer> getTombstones(int lastSync) throws ServiceException {
    public synchronized List<Integer> getTombstones(long lastSync) throws ServiceException {        if (!isTrackingSync())            throw ServiceException.FAILURE("not tracking sync", null);        boolean success = false;        try {            beginTransaction("getTombstones", null);            MailItem.TypedIdList tombstones = DbMailItem.readTombstones(this, lastSync);            success = true;            return tombstones.getAll();        } finally {            endTransaction(success);        }    }