[RESOLVIDO] Erro indeterminado

Exception in thread "main" java.lang.VerifyError: (class: extras02/Automovel, method: <init> signature: (Ljava/lang/String;Ljava/lang/String;I)V) Constructor must call super() or this()
        at extras02.Ex12_arraylist.main(Ex12_arraylist.java:20)
Java Result: 1

/*
*/
package extras02;

import java.text.ParseException;
import java.util.Date;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.text.SimpleDateFormat;
import java.util.Calendar;

public class Ex12_arraylist {

    protected static SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");

    public static void main(String[] args) {
        ArrayList<Automovel> lista = new ArrayList<Automovel>();

        try {
            lista.add(new Automovel("MODELO1", sdf.parse("15/11/2012")));
            lista.add(new Automovel("MODELO2", sdf.parse("05/06/1970")));
            lista.add(new Automovel("MODELO3", sdf.parse("18/12/2009")));
        } catch (ParseException e) {
        }

        Ex12_arraylist ex = new Ex12_arraylist();
        ArrayList<Automovel> lista2;

        try {
            lista2 = ex.menosDe10(lista);
            for (int i = 0; i < lista2.size(); i++) {
                System.out.println(lista2.get(i));
            }
        } catch (Exception e) {
        }
    }

    private ArrayList<Automovel> menosDe10(ArrayList<Automovel> lista) throws NullPointerException {
        ArrayList<Automovel> temp = new ArrayList<Automovel>();
        GregorianCalendar gc = new GregorianCalendar();

        for (Automovel aux : lista) {
            gc.setTime(aux.getAno());
            if (gc.get(Calendar.YEAR) >= 2002) {
                temp.add(aux);
            }
        }
        return temp;
    }
}

class Automovel {

    private String modelo;
    private Date ano;

    public Automovel(String modelo, Date ano) {
        this.modelo = modelo;
        this.ano = ano;
    }

    public Date getAno() {
        return this.ano;
    }

    @Override
    public String toString() {
        return this.modelo + "\n" + Ex12_arraylist.sdf.format(this.ano) + "\n";
    }
}