importing class to jsp from outer project and calling a method

Hi for all good people on this site. I have a project that i need to write a web interface for it, which can call some methods in classes of the existing project. I wrote a jsp and imported a classes that i need to call methods in them. Also i know that to import classes i must to add a class jar to web-inf directory or to add whole existing project to class-path. but when i am trying to import instantiate with i get

javax.servlet.ServletException: java.lang.InstantiationException: class BL.TaxiStation : java.lang.InstantiationException: BL.TaxiStation

My jsp:

in line 19.

The class im trying to import TaxiStation.java:

package BL;

import java.io.IOException;
import java.io.Serializable;
import java.util.Vector;
//import java.util.logging.*;
import java.util.Calendar;
import java.util.logging.FileHandler;
import java.util.logging.Filter;
import java.util.logging.Handler;
import java.util.logging.Logger;
import BL.LogThis;

import Listeners.PassengersEventsListener;
import Listeners.TaxisEventsListener;
import UI.MainPanel;

public class TaxiStation implements Runnable, Serializable{
    private String Sname;
    private int maxWaitingTaxis;
    private Vector<Taxi> allTaxi =new Vector<Taxi>();
    private Vector<Taxi> awaitingTaxi = new Vector<Taxi>();
    private Vector<Taxi> drivingTaxi = new Vector<Taxi>();
    private Vector<Taxi> finishedDrivingTaxi = new Vector<Taxi>();
    private Vector<Passenger> allPassengers = new Vector<Passenger>();
    private boolean isAvailable = true;
    private boolean isAvailableQue=true;
    private boolean isOpen=true;
    private static Object stationRester = new Object();
    private String sameDist;
    private boolean ReOpened=false;
    private float StartPrice;
    private float PricePerSecond;
    private int wait=0;
    private Logger logger;
    transient private TaxisEventsListener listenerTaxi;
    transient private PassengersEventsListener listenerPassenger;
    private boolean fillFirstTime=false;
    private boolean copyData;

---------  some data -------

}
    public Vector<Passenger> getVecPassengers(){
        return allPassengers;
    }

as i see it is imported because a can reach its methods in <jsp:usebean>

The error i got

classpath and projects structre

Another question maybe instead of trying to import the classes and methods I should work with data base, which i also have in project.

Thank you all. and sorry for such a long post.