[JAVA] Eccezioni che non vanno!!!

[FreeManX]

Ciao,
ho questo codice (con due eccezioni definite da me.. solo costruttori ereditati da Objct) Ma quando faccio il test mi da questo errore:

stack/TestStack.java [28:1] exception stack.Exception.EmptyStackException is never thrown in body of corresponding try statement
       } catch (EmptyStackException e) {
         ^
1 error
Errors compiling TestStack.

--- CODICE STACK CLASS --

/*
 * Stack.java
 *
 * Created on April 4, 2004, 5:58 PM
 */

/**
 *
 * @author  root
 */
package stack;
import stack.Exception.*;

public class Stacoone
{
    private int stacksize;
    private int curr;
    private Object[] stackval;
    
    /** Creates a new instance of Stack */
    public Stacoone (int s)
    {
        stackval = new Object[s];
        curr=-1;
        stacksize=s;
    }
    
    public void push (Object o) {
        if (stacksize-1 == curr) throw new FullStackException();
       
        curr++;
        stackval[curr] = o;
        
        
        
    }
    
    public Object pop () {
        if (curr==-1) throw new EmptyStackException();
        
        return stackval[curr--];

    }

    public Object top () {
        if (curr == -1) throw new EmptyStackException();
        
        return stackval[stacksize];

    }
    
    public int size () {
        return curr+1;
    }
    
    public boolean isEmpty() { return (curr == -1); }
    
}

-- CODICE MAIN --

/*
 * TestStack.java
 *
 * Created on April 4, 2004, 6:24 PM
 */

/**
 *
 * @author  root
 */
package stack;
import stack.Stacoone;
import stack.Exception.*;
//import java.util.*;

public class TestStack
{
    
    /**
     * @param args the command line arguments
     */
    public static void main (String[] args) throws FullStackException, EmptyStackException
    {
        
        Stacoone interi = new Stacoone(4);
       try {
        interi.pop();
       } catch (EmptyStackException e) {
       System.out.println("Stack vuoto");
       }
      
        //interi.push(new Integer(3));
       
        // TODO code application logic here
    }

Grazie ciao!