org.hibernate.QueryException: not an association

I want to add order by restricting a condition in Hibernate. I have two tables Event and MainEvent with a one-to-many relationship (MainEvent has many events).

    final Criteria criteria = getCurrentSession().createCriteria(
            Event.class);
    criteria.createAlias("mainEvent.date", "deadline");
    criteria.addOrder(Order.asc("deadline"));
    return criteria.list();

When I try to run this command I get the following error:

org.hibernate.QueryException: Not associated with: Date.

MainEvent entity:

@Entity
@Table(name = "MAIN_EVENT")
public class MainEventEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "MAIN_EVENT_ID")
    private int id;

    @Column(name = "MAIN_EVENT_DATE")
    private Date date;

    @OneToMany(mappedBy = "mainEvent", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
    private List<EventEntity> events = new ArrayList<EventEntity>();

}

Event entity:

@Entity
@Table(name = "EVENT")
public class EventEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "EVENT_ID")
    private int id;

    @ManyToOne(cascade = CascadeType.PERSIST)
    @JoinColumn(name = "MAIN_EVENT_ID", nullable = false)
    private MainEventEntity mainEvent;

}