Java connect to SAP R/3

Question

I would seek for opinion on the problem that we're currently encountered related to java We are developing an intranet system using Java and Borland Enterprise Server as an application/web server and also connecting to SAP R/3 database to get certain informations. The problem is that the connection to the database is not disconnect eventhough users already logout from the system. I can check the connection via the SAP (transaction SM04) and the connection are still established.
According to the Java developers they already put in the disconnect statement in the java program.
Pls help.

Answer 1

Try and adhere to this pattern :
Datasource datasource = //Go configure your own datasource if you need to
Connection con = null ;
PreparedStatement pstat = null;
ResultSet rset = null; 
try {
   con = datasource.getConnection() ;
   pstat = con.prepareStatement(SQLSTRING) ;
   rset = pstat.executeQuery() ;
   if(rset.next()) {
           //blah blah
} catch (SQLException e) {
  e.printStackTrace() ;
} finally {
   try {
      rset.close() ;
      pstat.close() ;
      con .close() ;
    }catch (SQLException e) {
       e.printStackTrace() ;