Novo erro [RESOLVIDO]

@Entity
public class Tabela {
	
	@Id @GeneratedValue
	private Long idtabela;
	
	@Column (nullable = true, length = 50)
	private String nome;
	
	
	public Long getIdtabela() {
		return idtabela;
	}
	public void setIdtabela(Long idtabela) {
		this.idtabela = idtabela;
	}
	public String getNome() {
		return nome;
	}
	public void setNome(String nome) {
		this.nome = nome;
	}
	

}

public class TabelaDAO {
	
	private Session session;
	
	public  TabelaDAO (Session session){
		
		this.session = session;
	}
	

	public void salvar(Tabela t) {
		
		session.beginTransaction();
		session.save(t);
		session.getTransaction().commit();
	}
	
	public void remover(Tabela t) {
		
		session.beginTransaction();
		session.delete(t);
		session.getTransaction().commit();
	}
	
	public Tabela procurar (int idTabela) {
		
		return (Tabela) this.session.load(Tabela.class, idTabela);
	}
	
	public void atualizar(Tabela t) {
		
		session.beginTransaction();
		session.update(t);
		session.getTransaction().commit();
	}
	
	public List<Tabela>  listatudo() {
		
		return this.session.createCriteria(Tabela.class).list();
	}
	
	public List<Tabela> pagina(int inicio, int quantia) {
		
		return this.session.createCriteria(Tabela.class).setMaxResults(quantia).setFirstResult(inicio).list();
	}

}

public class AdicionarTabela {

	
	public static void main(String[] args) {
		
		Session session = new HibernateFactory().getSession();
		
		Tabela t = new Tabela();
		t.setNome("Produto");
		
		TabelaDAO tabelaDAO = new TabelaDAO(session);
		tabelaDAO.salvar(t);
		
		session.close();

	}

}

TabelaDAO tabelaDAO = new TabelaDAO(session);