I haven't read this book, nor have I used this technique before, but it must be a pretty common problem.
If you are leaving ResultSets open, who is supposed to clean them up. JRResultSetDataSource doesn't have a close method.
Is this a recommended example from the book, or is it simply this implementation that's causing the problems?
now if some good member can share a link or code using JdbcTemplate.queryForList(String sql) or
ColumnMapRowMapper like was suggested by our friend Jörg
i really appreciate
thanks for advanced