ArrayList<Integer> purgedConvs = new ArrayList<Integer>();
List<Integer> purgedConvs = new ArrayList<Integer>();
    private static List<Integer> getPurgedConversations(Mailbox mbox) throws ServiceException {        Connection conn = mbox.getOperationConnection();        ArrayList<Integer> purgedConvs = new ArrayList<Integer>();        PreparedStatement stmt = null;        ResultSet rs = null;        try {            stmt = conn.prepareStatement("SELECT id FROM " + getMailItemTableName(mbox) +                    " WHERE type = " + MailItem.TYPE_CONVERSATION + " AND size <= 0");            rs = stmt.executeQuery();            while (rs.next())                purgedConvs.add(rs.getInt(1));            return purgedConvs;        } catch (SQLException e) {            throw ServiceException.FAILURE("getting list of purged conversations", e);        } finally {            DbPool.closeResults(rs);            DbPool.closeStatement(stmt);        }    }