public static ArrayList getOpSerial(String arg_serial) throws SQLException, ClassNotFoundException {
        ArrayList sts = new ArrayList();
        Connection conPol = conMgr.getConnection("PD");
        ResultSet rs;
        if (conPol == null) {
            throw new SQLException("Numero Maximo de Conexoes Atingida!");
        }
        try {
            call = conPol.prepareCall("{call sp_op_infoser(?)}");
            call.setString(1, arg_serial.toUpperCase());

            rs = call.executeQuery();

            while (rs.next()) {

                sts.add("<a href=consultaServ?acao=opsConsultaOp&txt_op=" + rs.getInt("op") + ">" + rs.getInt("op") + "</a> \t"
                        + rs.getDate("data_op") + "\t"
                        + rs.getString("nroserieini") + "\t"
                        + rs.getString("nroseriefim") + "\t"
                        + "\t\t\t\t\t\t\t"
                        + rs.getInt("qtd_op") + "\t"
                        + rs.getString("item") + "\t"
                        + rs.getString("descricao"));
            }
        } finally {
            if (conPol != null) {
                conMgr.freeConnection("PD", conPol);
            }
        }
        return sts;
    }