TestCase doesn't call ResultSet.close

ResultSet res = tpch.execute("select 100 * sum(" +
        "case when p_type like 'PROMO%' then l_extendedprice else 0.0 end) / sum(l_extendedprice * (1 - l_discount)) "
        + "as promo_revenue from lineitem, part where l_partkey = p_partkey");

assertTrue(res.next());
assertEquals(33, res.getInt(1));

ResultSet res = tpch.execute("select 100 * sum(" +
        "case when p_type like 'PROMO%' then l_extendedprice else 0.0 end) / sum(l_extendedprice * (1 - l_discount)) "
        + "as promo_revenue from lineitem, part where l_partkey = p_partkey");

try {
  assertTrue(res.next());
  assertEquals(33, res.getInt(1));
} finally {
  res.close();
}