LazyInitializationException with map collection

I know that it is a trite question, but I could not find a solution. I have two beans and one of them has HashMap collection. I'm getting an exception when trying to read this collection. Mapping config had been specified to load this collection eagerly.

My environment is :

• Hibernate 4.2.0
• mysql-connector-java 5.1.24

Also I have two beans:

public class FeaturedDoc {
    private Long id;
    private Map<Feature, Float> features;

    public FeaturedDoc() {
        features = new HashMap<Feature, Float>();
    }
   (getters and setters)
}

and

public class Feature {
    private Long id;
    private String name;
    private Long internalId;
    (getters and setters)    
}

This beans have mapping:

<class name="Feature" table="FEATURE">
    <id name="id" type="long" column="ID">
        <generator class="increment"/>
    </id>
    <property name="name" length="255" type="string" unique="true" column="NAME" index="INDEX_NAME"/>
    <property name="internalId" type="long" unique="true" not-null="false" column="INTERNAL_ID" index="INDEX_INTID"/>
    <sql-insert>insert into FEATURE (NAME, INTERNAL_ID, ID) values (?, ?, ?) on duplicate key update ID = ID</sql-insert>
</class>

<class name="FeaturedDoc" table="FEATURED_DOC">
    <id name="id" type="long" column="ID">
        <generator class="increment"/>
    </id>
    <map  name="features" table="DOC_FEATURE" cascade="all" lazy="false" fetch="join">
        <key column="ID"></key>
        <map-key-many-to-many column="FEATURE_ID" class="Feature"/>
        <element column="value" type="float"/>
    </map>
</class>

Also I have DAO layer with method:

public FeaturedDoc read(long id) {
    FeaturedDoc fd = null;
    try {
        session.beginTransaction();
        fd = session.get(FeaturedDoc.class, id);
        session.getTransaction().commit();
    } catch (Exception e) {
        e.printStackTrace();
        session.getTransaction().rollback();
    } finally {
        close();
    }
    return fd;
}

When I'm trying to do something like this:

FeaturedDoc fd = daoService.read(26);
System.out.println(fd.getFeatures());

I'm getting an exception

org.hibernate.LazyInitializationException: could not initialize proxy - no Session

Do you know how should I fix this error?