The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect

The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect.Parameter 8 (""): The supplied value is not a valid instance of data type float. Check the source data for invalid values. An example of an invalid value is data of numeric type with scale greater than precision

I keep getting this error

Can anyone please help me with this code? Every time I submit the details of the form in the jsp page i keep getting this exception.

this is the code on the servlet that takes in data from a form on a jsp page. it was working in a previous version and stopped after I changed he

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
        MPGBean user2 = new MPGBean();

        String prevMiles = request.getParameter("previousMiles");
        int pM2 = Integer.parseInt(prevMiles);
        System.out.println(pM2);
        user2.setPreviousMiles(pM2);

        String currMiles = request.getParameter("currentMiles");
        int pM3 = Integer.parseInt(prevMiles);
        System.out.println(pM2);
        user2.setCurrentMiles(pM3);

        String noOFLitres = request.getParameter("noOFLitres");
        int pM4 = Integer.parseInt(prevMiles);
        System.out.println(pM2);
        user2.setNoOfLitres(pM4);

        String fT = request.getParameter("fuelPrice");
        System.out.println("023");
        System.out.println(fT);
        double fT2 = Double.parseDouble(fT);
        System.out.println(fT2);
        System.out.println("024");
        user2.setFuelPrice(fT2);
        System.out.println(user2.getFuelPrice());
        System.out.println("022");

        user2.setTotalMiles(user2.getCurrentMiles() - user2.getPreviousMiles());
        System.out.println(user2.getTotalMiles());
        user2.setTotalGallons(user2.getNoOfLitres() / user2.GALLON);
        System.out.println(user2.getTotalGallons());
        System.out.println("02");

        double mps = user2.getTotalMiles() / user2.getTotalGallons();
        String mps2 = String.format("%.2f", mps);
        double mps3 = Double.parseDouble(mps2);
        System.out.println("Decimal"+mps2);

        //mpg.setMPG(mpg.getTotalMiles() / mpg.getTotalGallons());
        user2.setMPG(mps3);
        System.out.println(user2.getMPG());
        user2.setTotalPrice(user2.getFuelPrice() * user2.getNoOfLitres());
        System.out.println(user2.getTotalPrice());
        System.out.println("02");

        double cps = (user2.getTotalPrice() / user2.getTotalMiles());
        String cps2 = String.format("%.2f", cps);
        System.out.println("Decimal"+cps2);
        double cps3 = Double.parseDouble(cps2);

        user2.setCPM(cps3);
        //mpg.setCPM(mpg.getTotalPrice() / mpg.getTotalMiles());
        System.out.println(user2.getCPM());
        System.out.println("02");

        System.out.println("MPG -->" + user2.getMPG() );
        System.out.println("CPM -->" + user2.getCPM());
        System.out.println("02");

        String message = "";
        String url = "";

        if((currMiles.length() == 0 )||
           prevMiles.length() == 0 ||
           noOFLitres.length() == 0)
        {
            message = "Please fill out all te text boxes";
            url = "/loginpage.jsp";
        }
        else if (isDouble(currMiles) == false ||
                isDouble(prevMiles) == false ||
                isDouble(noOFLitres) == false)
        {
            message = "Please use only integers!";
            url = "/userlogged.jsp";
        }
        else
        {
            message = "";
            //ServletContext context = getServletContext();
            //String path = context.getRealPath("");
            user2 = MpgDAO.mpgCalculate(user2);

            //url = "";
        }
        request.setAttribute("user2", user2);
        request.setAttribute("message", message);

        RequestDispatcher dispatcher = request.getRequestDispatcher(url);
        dispatcher.forward(request, response);
    }
    catch (Throwable theException)
      {
          System.out.println(theException);
          System.out.println("08");
      }
      }

this is the code for connecting to the database

public static MPGBean mpgCalculate(MPGBean bean2)
 {
     //preparing some objects for connection
     Statement stmt = null;
     PreparedStatement pstmt = null;
     Connection conn = null;
     System.out.println("a");
    int totalMiles = bean2.getTotalMiles();
    int noOFLitres = bean2.getNoOfLitres();
    double mp = bean2.getMPG();
    double cp = bean2.getCPM();
    double fueltype = bean2.getFuelPrice();
    //int fueltype = 0;
    /*if(bean2.getFuelPrice() == 1.38)
    {
        fueltype = 1;
    }
    else if(bean2.getFuelPrice() == 1.30)
    {
        fueltype = 2;
    }*/


    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.DATE, 1);

     java.util.Date today = new java.util.Date();
     System.out.println(today);
    //System.out.print
    //SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd");

    /*DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
    Date myDate = formatter.parse(date);







     //PreparedStatement pstmt = null;


    /*String insertQuery = "insert into mpg_cpmtable (fuel_id, total_miles, No_OF_Litres, date_OF_Sale)" +
            "values ("+ fueltype+", "+ totalMiles +","+ noOFLitres+","+sqlDate+" );";*/



    // String insertQuery = "insert into mpg_cpmtable (fuel_id, total_miles, No_OF_Litres,MPG,CPM, date_OF_Sale)" +
    //  "values (?, ?, ? , ?, ?, ?);";

     /*String insertQuery ="insert into mpg_cpmtable(fuel_id, total_miles,"
                +"no_of_litres,mpg, cpm ,date_of_sale)"
            +"  values ((select fuel_id from fueltable where fuel_prices = ?)"
            +", ?, ?, ?, ?, ?); SELECT @@IDENTITY ";*/
     String insertQuery ="insert into mpg_cpmtable(fuel_id, total_miles,"
            +"no_of_litres,mpg, cpm ,date_of_sale)"
        +"  values ((select fuel_id from fueltable where fuel_prices = ?)"
        +", ?, ?, ?, ?, ?)";





     //String password= bean.getPassword();
     //int employeeNumber = bean.getEmployeeNumber();
     //String searchName = " ";
     System.out.println("b");
     //String password = bean.getPassword();
     //System.out.println("c");

     //username + "' AND password='" + password + "'";

     try
     {
         //connect to DB
         currentCon = ConnectionManager.getConnection();
         System.out.println("e");


          pstmt = currentCon.prepareStatement(insertQuery);

         //stmt=currentCon.createStatement();
         System.out.println("f");
         //CallableStatement statement = null;
         //statement = currentCon.prepareCall(insertQuery);

         pstmt = currentCon.prepareStatement(insertQuery, Statement.RETURN_GENERATED_KEYS);

         java.util.Date date = new java.util.Date();
         long t = date.getTime();
         System.out.println(t);
         java.sql.Date sqlDate = new java.sql.Date(t);
         java.sql.Time sqlTime = new java.sql.Time(t);
         java.sql.Timestamp sqlTimestamp = new java.sql.Timestamp(t);
         System.out.println("sqlDate=" + sqlDate);
         System.out.println("sqlTime=" + sqlTime);
         System.out.println("sqlTimestamp=" + sqlTimestamp);



        /* statement.setDouble(1, fueltype);
         System.out.println("NNNNN");
         statement.setInt(2, totalMiles);
         statement.setInt(3, noOFLitres);
         statement.setDouble(4, mp);
         statement.setDouble(5, cp);
         statement.setDate(6, sqlDate);
         System.out.println("mmmmmm");
         //statement.registerOutParameter(7, Types.NUMERIC);
         System.out.println("LLLLLLLL");
         //statement.executeUpdate();
         System.out.println("UUUUUU");
         statement.execute();
         //int id = statement.getInt(7);
         System.out.println("777777");
         //System.out.println(id);

         int iUpdCount = statement.getUpdateCount();
         boolean bMoreResults = true;
         int myIdentVal = -1;
         while (bMoreResults || iUpdCount!=-1)
         {

             rs = statement.getResultSet();
             if (rs != null)
             {
                 rs.next();
                 myIdentVal = rs.getInt(1);
             }

         }
         bMoreResults = statement.getMoreResults();
         iUpdCount = statement.getUpdateCount();
         System.out.println("GoON Please");
         //int myIdentVal = rs.getInt(1);
         //int hello = pstmt.getInt(7);
         //pstmt.executeUpdate();
         System.out.println( "@@IDENTITY is: " + myIdentVal);
         System.out.println("Please Please");


         statement.close();*/

         pstmt.setDouble(1, fueltype);
         pstmt.setInt(2, totalMiles);
         pstmt.setInt(3, noOFLitres);
         pstmt.setDouble(4, mp);
         pstmt.setDouble(5, cp);
         System.out.println("YY");
         pstmt.setDate(6, sqlDate);
         System.out.println("XYXX");
         pstmt.executeUpdate();

         int last_inserted_id =0;
         ResultSet rs = pstmt.getGeneratedKeys();
         if(rs.next())
         {
             last_inserted_id = rs.getInt(1);
             System.out.println(last_inserted_id);
         }
         System.out.println(last_inserted_id);
         bean2.setTransactionNo(last_inserted_id);

        /* pstmt.setDouble(1, fueltype);
         pstmt.setInt(2, totalMiles);
         pstmt.setInt(3, noOFLitres);
         pstmt.setDouble(4, mp);
         pstmt.setDouble(5, cp);
         pstmt.setDate(6, sqlDate);
         //pstmt.registerOutParameter(7);
         //int hello = pstmt.getInt(7);
         pstmt.executeUpdate();*/

         //rs = pstmt.getResultSet();
         System.out.println("XXX");

         //int hello = rs.getInt(7);
         //System.out.println(hello);
        // rs = stmt.executeQuery(insertQuery);
         //rs = stmt.executeQuery(insertQuery);
         System.out.println("g");

         //boolean more = rs.next();
         System.out.println("h");

         // if user does not exist set the isValid variable to false
         //if (!more)
         //{
             //System.out.println("Sorry, you are not a registered user! Please sign up first");
            // System.out.println("Sorry, CANNOT FIND DATA");
             //System.out.println("i");

             //bean2.setValid(false);
             //System.out.println("j");
        // }
         //if user exists set the isValid variable to true
        /* else if (more)
         {
            // String usernameqy = rs.getString("employeeType");

             System.out.println("k");


            // System.out.println("Welcome " + usernameqy);
             System.out.println("l");

             System.out.println("m");

             bean2.setValid(true);
             System.out.println("n");
         }*/
    }


     catch (Exception e)
     {
          e.printStackTrace();
          System.out.println("Failed to insert the record." + e);
     }
     if (stmt != null)
    {
        try
        {
         pstmt.close();
         System.out.println("p");
        }
        catch (Exception e) {}
        pstmt = null; }
     if (currentCon != null)
    {
        try { currentCon.close();
                pstmt.close();
        System.out.println("q");
        }
        catch (Exception e)
        { }
        currentCon = null;
    }
     return bean2;