SpringData vs EntityManager injection [NullPointerException]

I´m using spring data, witch is very good and all. But it fails me because I cant create a dinamic query
(for filtering, in an datatable, por e.g). Soo, i need to get a reference of EntityManager to build my query.
But i get nullPointerException!! Check out my config;

Code:

---

        <!-- Autoscan for annotations -->
        <context:component-scan base-package="br.com.noronha" />

        <jpa:repositories base-package="br.com.noronha" />

        <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
                <property name="entityManagerFactory" ref="emf" />
        </bean>


        <bean id="dataSource"
                class="org.springframework.jdbc.datasource.DriverManagerDataSource">

                <property name="driverClassName" value="com.mysql.jdbc.Driver" />
                <property name="url" value="jdbc:mysql://localhost/myfinancesweb" />
                <property name="username" value="root" />
                <property name="password" value="root" />
        </bean>


        <bean id="emf"
                class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
                <property name="dataSource" ref="dataSource" />
                <property name="packagesToScan" value="br.com.noronha.model.entity" />
                <property name="persistenceProvider">
                        <bean class="org.hibernate.ejb.HibernatePersistence" />
                </property>
                <property name="jpaProperties">
                        <map>
                                <entry key="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
                                <entry key="hibernate.hbm2ddl.auto" value="update" />
                        </map>
                </property>
        </bean>

---

Now here's how i´m tryin to inject it:

Code:

---

    private EntityManager entityManager;

    @PersistenceContext
    public void setEntityManager(EntityManager entityManager) {
        this. entityManager = entityManager;
    }
   
    @Autowired
    public GrupoController(GrupoService grupoService, MessageUtil messageUtil) throws Exception {
        super(grupoService, Grupo.class,messageUtil);
        lazyModel = new BaseLazyModelJPA<Grupo, Integer>(grupoService,entityManager, Grupo.class, messageUtil);
       
    }

---

and when I try to use it, in my BaseLazyModelJPA class:

Code:

---


    private EntityManager entityManager;
  //ommited
   
    public BaseLazyModelJPA(BaseService<T, PK> baseService, EntityManager entityManager, Class<T> entityClass, MessageUtil messageUtil) {
        this.entityManager = entityManager;
        //ommited       
    }

//this method is called by primefaces, in p:datatable.... but when it reaches the last line of the code block,
 // null pointer ;(
    @Override
    public List<T> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String, String> filters) {

        List<T> data = new ArrayList<T>();
        String noneSelected = messageUtil.getMessageBundle("global.selecione");
       
       
        // Criteria
        CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();

---

Can anybody help?