Tabelas de junção (Relacionamento) não são criadas pelo Netbeans

import java.io.Serializable;

import java.util.Collection;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import <a href="http://javax.persistence.Id">javax.persistence.Id</a>;

import javax.persistence.JoinColumn;

import javax.persistence.JoinTable;

import javax.persistence.ManyToMany;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.XmlTransient;

@ Entity

@ Table(name = “recurso”)

@ XmlRootElement

@NamedQueries({

@ NamedQuery(name = “Recurso.findAll”, query = “SELECT r FROM Recurso r”),

@ NamedQuery(name = “Recurso.findById”, query = “SELECT r FROM Recurso r WHERE <a href="http://r.id">r.id</a> = :id”),

@ NamedQuery(name = “Recurso.findByDescricao”, query = “SELECT r FROM Recurso r WHERE r.descricao = :descricao”)})

public class Recurso implements Serializable {

private static final long serialVersionUID = 1L;

@ Id

@ GeneratedValue(strategy = GenerationType.IDENTITY)

@ Basic(optional = false)

@ Column(name = “id”)

private Integer id;

@ Column(name = “descricao”)

private String descricao;

@ JoinTable(name = “utilizador_descricao”, joinColumns = {

@ JoinColumn(name = “id_recurso”, referencedColumnName = “id”)}, inverseJoinColumns = {

@ JoinColumn(name = “id_utilizador”, referencedColumnName = “id”)})

@ ManyToMany

private Collection utilizadorCollection;

public Recurso() {
}

public Recurso(Integer id) {
    this.id = id;
}

public Integer getId() {
    return id;
}

public void setId(Integer id) {
    this.id = id;
}

public String getDescricao() {
    return descricao;
}

public void setDescricao(String descricao) {
    this.descricao = descricao;
}

@XmlTransient
public Collection<Utilizador> getUtilizadorCollection() {
    return utilizadorCollection;
}

public void setUtilizadorCollection(Collection<Utilizador> utilizadorCollection) {
    this.utilizadorCollection = utilizadorCollection;
}

@Override
public int hashCode() {
    int hash = 0;
    hash += (id != null ? id.hashCode() : 0);
    return hash;
}

@Override
public boolean equals(Object object) {
    // TODO: Warning - this method won't work in the case the id fields are not set
    if (!(object instanceof Recurso)) {
        return false;
    }
    Recurso other = (Recurso) object;
    if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
        return false;
    }
    return true;
}

@Override
public String toString() {
    return "testcirculo.Recurso[ id=" + id + " ]";
}

import java.io.Serializable;

import java.util.Collection;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import <a href="http://javax.persistence.Id">javax.persistence.Id</a>;

import javax.persistence.ManyToMany;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.XmlTransient;

@ Entity

@ Table(name = “utilizador”)

@ XmlRootElement

@ NamedQueries({

@ NamedQuery(name = “Utilizador.findAll”, query = “SELECT u FROM Utilizador u”),

@ NamedQuery(name = “Utilizador.findById”, query = “SELECT u FROM Utilizador u WHERE <a href="http://u.id">u.id</a> = :id”),

@ NamedQuery(name = “Utilizador.findByNome”, query = “SELECT u FROM Utilizador u WHERE u.nome = :nome”)})

public class Utilizador implements Serializable {

private static final long serialVersionUID = 1L;

@ Id

@ GeneratedValue(strategy = GenerationType.IDENTITY)

@ Basic(optional = false)

@ Column(name = “id”)

private Integer id;

@ Column(name = “nome”)

private String nome;

@ManyToMany(mappedBy = “utilizadorCollection”)

private Collection recursoCollection;

public Utilizador() {
}

public Utilizador(Integer id) {
    this.id = id;
}

public Integer getId() {
    return id;
}

public void setId(Integer id) {
    this.id = id;
}

public String getNome() {
    return nome;
}

public void setNome(String nome) {
    this.nome = nome;
}

@ XmlTransient
public Collection<Recurso> getRecursoCollection() {
    return recursoCollection;
}

public void setRecursoCollection(Collection<Recurso> recursoCollection) {
    this.recursoCollection = recursoCollection;
}

@ Override
public int hashCode() {
    int hash = 0;
    hash += (id != null ? id.hashCode() : 0);
    return hash;
}

@ Override
public boolean equals(Object object) {
    // TODO: Warning - this method won't work in the case the id fields are not set
    if (!(object instanceof Utilizador)) {
        return false;
    }
    Utilizador other = (Utilizador) object;
    if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
        return false;
    }
    return true;
}

@ Override
public String toString() {
    return "testtables.Utilizador[ id=" + id + " ]";
}

recursos.add( new Recurso (“Nome1”);

recursos.add( new Recurso (“Nome2”);

recursos.add( new Recurso (“Nome3”);

em.getTransaction().begin();
    Utilizador utilizador = new Utilizador();

    List<Recurso> recur = new ArrayList();
    recur.add(new Recurso(1));
    recur.add(new Recurso(2));
    
    
    utilizador.setRecursoCollection(recur);
    utilizador.setId(1); // seria o utilizador já existente para atribuir os recursos mas não funciona

        
    UtilizadorJpaController utili = new UtilizadorJpaController(emf);
    utili.create(utilizador); // O Netbeans já cria a classe controller contendo o persist


    em.getTransaction().commit();