Java - Ayuda con Hibernate

@Entity(name = "Person")

public class Person implements Serializable {

     @Id

    @GeneratedValue

    private Long id;

    @OneToMany(cascade = {CascadeType.ALL})

    @JoinColumn(name = "pkPerson")

    private List<Phone> phones = new ArrayList<>();

    con contructores, getters y setters

}

@Entity(name = "Phone")

public class Phone implements Serializable {

    @Id

    @GeneratedValue

    private Long id;

    @NaturalId

    @Column(name = "`number`", unique = true)

    private String number;

    con contructores, getters y setters

}

package com.praxis.siho.core.data.repository;

import java.util.List;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;

import javax.persistence.PersistenceContextType;

import org.hibernate.Criteria;

import org.hibernate.Session;

import org.hibernate.criterion.CriteriaSpecification;

import org.hibernate.criterion.Order;

import org.hibernate.criterion.Restrictions;

import org.hibernate.sql.JoinType;

import org.springframework.stereotype.Repository;

import com.praxis.siho.core.data.dto.HoAnalisisRiesgoDto;

import com.praxis.siho.core.data.entity.HoAnalisisRiesgo;

@Repository

public class PersonDao {

	@PersistenceContext(type = PersistenceContextType.TRANSACTION)

	private EntityManager entityManager;

	@SuppressWarnings("unchecked")

	public List<Person> findByPhoneEstado(String estado) {

		Session session = entityManager.unwrap(Session.class);

		Criteria criteria = session.createCriteria(Person.class, "person");

		criteria.createAlias("person.phone", "phone", JoinType.INNER_JOIN);

		if(estado != null && !estado.isEmpty()) {

			criteria.add(Restrictions.eq("phone.estado", estado));

		}

		criteria.setResultTransformer(CriteriaSpecification.DISTINCT_ROOT_ENTITY);

		return (List<Person>) criteria.list();

	}

}