Java JAXB how to creatae POJO classes

With JAXB, how can I create the POJO classes with such a xml structure :

 <procedure>
    <procedure>
       <param>value1</param>
       <param>value2</param>
    </procedure>
    <procedure>
       <param>value3</param>
       <param>value4</param>
    </procedure>
 </procedure>

As you can see the external procedure tag is the same than the internal procedure tag.