Inserção no banco com JPA

Usage: RealmBase -a <algorithm> [-e <encoding>] <credentials>

@Entity
public class Dog {
	
	@Id
	@GeneratedValue
	private Integer id;
	
	@ManyToMany(mappedBy="dogs")
	private List<Person> person;
	
	private String name;

	public List<Person> getPerson() {
		return person;
	}

	public void setPerson(List<Person> person) {
		this.person = person;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	

}

@Entity
public class Person {

	@Id
	@GeneratedValue
	private Integer id;
	
	private String name;
	
	@ManyToMany
	@JoinTable(
			name="person_dog", 
			joinColumns=@JoinColumn(name="person_id"), 
			inverseJoinColumns = @JoinColumn(name="dog_id") )
	private List<Dog> dogs;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public List<Dog> getDogs() {
		return dogs;
	}

	public void setDogs(List<Dog> dogs) {
		this.dogs = dogs;
	}
}

package mapeamento.manytomany;

import java.util.ArrayList;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class main {
	
	public static List<Person> getPersonList(){
		
		List<Person> personList = new ArrayList<>();
		
		Person person1 = new Person();
		person1.setName("testePerson1");		
		person1.setDogs(getDogList());
		
		Person person2 = new Person();
		person2.setName("testePerson2");		
		person2.setDogs(getDogList());
		
		personList.add(person1);
		personList.add(person2);
		
		return personList;
	}
	
	public static List<Dog> getDogList(){
		
		List<Dog> dogList = new ArrayList<>();
		
		Dog dog1 = new Dog();
		dog1.setName("testeDog1");
		dog1.setPerson(getPersonList());
		
		Dog dog2 = new Dog();
		dog2.setName("testeDog2");
		dog2.setPerson(getPersonList());
		
		dogList.add(dog1);
		dogList.add(dog2);
		return dogList;
	}
	
	public static void main(String []args){
		
		EntityManagerFactory emf = Persistence.createEntityManagerFactory("testeHibernate");
		EntityManager em = emf.createEntityManager();
		
		try {
			em.getTransaction().begin();
			
			Person person = new Person();
			person.setName("Person");
		    person.setDogs(getDogList());
			
			em.persist(person);
			
			em.getTransaction().commit();
			
			System.out.println("terminou transição");
			
		} catch (Exception e) {
			em.getTransaction().rollback();
			e.printStackTrace();
		}finally{
			em.close();
		}
		
	}

}