@Entity
@Table(name = "TRAVEL_ENTITY")
public class TravelEntity {

    // instance data

    private UUID uuid;   
    private String description = "";
    private Set<MatterOfExpenseEntity> mattersOfExpense = new HashSet<MatterOfExpenseEntity>();
   
    @Type(type = "com.hrs.svl.travel.commons.type.usertypes.UUIDUserType")
    @Id
    @Column(name = "UUID", length = 36)
    public UUID getUuid() {
        return this.uuid;
    }

    public void setUuid(UUID uuid) {
        this.uuid = uuid;
    }   

    @Column(name = "DESCRIPTION", length = 100)
    public String getDescription() {
        return this.description;
    }

    public void setDescription(String description) {
        this.description = description;
    }


    @OneToMany(mappedBy = "travel", cascade = CascadeType.ALL)
    public Set<MatterOfExpenseEntity> getMattersOfExpense() {
        return this.mattersOfExpense;
    }

    public void setMattersOfExpense(Set<MatterOfExpenseEntity> mattersOfExpense) {
        this.mattersOfExpense = mattersOfExpense;
    }

}

@Entity
@Table(name = "MATTER_OF_EXPENSE_ENTITY")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name = "TID", discriminatorType = DiscriminatorType.STRING)
public class MatterOfExpenseEntity {
    // instance data

    private UUID uuid;
    private TravelEntity travel;

    // public

    @Type(type = "com.hrs.svl.travel.commons.type.usertypes.UUIDUserType")
    @Id
    @Column(name = "UUID", length = 36)
    @Attribute(primaryKey = true, index = 1)
    public UUID getUuid() {
        return this.uuid;
    }

    public void setUuid(UUID uuid) {
        this.uuid = uuid;
    }

    @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, optional = false, targetEntity = TravelEntity.class)
    @JoinColumn(name = "OR_TRAVEL")
    @Relation(target = TravelEntity.class, inverse = TravelEntity.MATTERS_OF_EXPENSE, index = 3)
    public TravelEntity getTravel() {
        return this.travel;
    }

    public void setTravel(TravelEntity travel) {
        this.travel = travel;
    }
}

                CriteriaBuilder cb = jpa.getCriteriaBuilder();
                CriteriaQuery<Object[]> cq = cb.createQuery(Object[].class);
                Root from = cq.from(TravelEntity.class);

                cq.multiselect(from.get("mattersOfExpense").alias("MATTER"), from.get("uuid").alias("ID"));

                Predicate pr = cb.equal(cb.literal(UUID.fromString("3f1302f7-1f2f-11e1-94ec-78acc0b04e2e")), from.get("uuid"));

                cq.from(TravelEntity.class);
                cq.where(pr);

                Object o3 = jpa.createQuery(cq).getResultList();

select . as col_0_0_,

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'as col_0_0_