@Entity
public class A implements Serializable {
...
    @ManyToMany(fetch = FetchType.LAZY)
    @OrderBy("name")
    private List<B> bList; // B is also an entity class
...
}

entityManager.find(A.class, id)

SELECT entity FROM A entity WHERE entity.id = :id

SELECT entity FROM A entity LEFT JOIN FETCH entity.bList WHERE entity.id = :id