The first () method is not used in the default usage mode. Under the following mode: statement stmt = con.createstatement (ResultSet.Type_Scroll_insensitive, ResultSet.concur_Updata);
Check the cursor open number Select Count (*) from sys.gv_ $ open_cursor
Select count (*) AS sessiona from v $ session; select count (*) AS CURSORA from sys.gv_ $ open_cursor;
