Java interacting with ms access database - ucanaccess

Is there any other way to properly close the connection to ms access database at the end of the infinite loop? Because if a record is inserted into the table, with my code below I can't see the new row/rows inserted. It looks like that the database is not closing corectly or something...no idea why it is acting like this. If I manually close or open the database (with my program still running in the background) everything is ok - the new row/rows will appear in my query.

import java.rmi.RemoteException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class Main {

    public static void main(String[] args) throws RemoteException,
            InterruptedException, SQLException {
        while (true) {
            Connection con = DBConnection.getDBConnection();
            System.out.println("Connection OK!");
            Statement s = null;

            try {
                    ResultSet rs = null;
                    con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
                    con.setAutoCommit(true);
                    rs = s.executeQuery("SELECT Tel, Msg, Procesat FROM RcvMsg WHERE Procesat = 'NOK'");

                    while (rs.next()) 
                    {
                        String pn = rs.getString(1);
                        String str = rs.getString(2);
                        //do something
                    }
                    rs.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                    } finally {
                        s.close();
                        con.close();
                    }   

            Thread.sleep(5000);
        }
    }
}