Jaxb dataFormat don't works in spring DSL

I created a route to make unmarshall from xml files to java objects, however when I execute this one, the error below occur.

Caused by: javax.xml.bind.JAXBException: "com.redhat.training.model" doesnt contain ObjectFactory.class or jaxb.index

I don't understand the reason of problem because I created an annotated class basead in the JB421 course.

package com.redhat.training.model;

import java.io.Serializable;

import javax.xml.bind.annotation.*;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Order implements Serializable{

    private static final long serialVersionUID = 5851038813219503043L;
    @XmlAttribute
    private String id;
    @XmlAttribute
    private String description;
    @XmlAttribute
    private double value;   
    @XmlAttribute
    private double tax;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getDescription() {
        return description;
    }
    public void setDescription(String description) {
        this.description = description;
    }
    public double getValue() {
        return value;
    }
    public void setValue(double value) {
        this.value = value;
    }
    public double getTax() {
        return tax;
    }
    public void setTax(double tax) {
        this.tax = tax;
    }   
}

after that, I made a reference to this class using the tag in the camelContext.xml file.
I don't find any reference that I need to create an instance of ObjectFactory or put a file jaxb.index in the same package of annotated classes.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:camel="http://camel.apache.org/schema/spring"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd        
    http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">

    <bean id="xmlProcessor" class="com.redhat.training.processor.XmlProcessor" />

    <camelContext id="camelContext-5934cd73-2041-4b43-aa3c-52f4f62aaeef"
        trace="false" xmlns="http://camel.apache.org/schema/spring">

        <dataFormats>
            <jaxb id="jaxb"  contextPath="com.redhat.training.model" ></jaxb>
        </dataFormats>

        <route id="_route1">
            <from id="_from1" uri="file:files/xml"/>
            <unmarshal ref="jaxb"/> 
            <to uri="bean:xmlProcessor" />
        </route>

    </camelContext>
</beans>