title: JAXB class with specific @XmlAttribute value
body: <p>I am trying to create JAXB classes to only filter out Product of type Item<br>
  irrespective the item is present in which category.</p>
  
  <pre><code>&lt;Product usertype="category1"&gt;
     &lt;Product usertype="category2"&gt;
       &lt;Product usertype="Item"&gt;
       .....
       ....
       &lt;/Product&gt;
   &lt;/Product&gt;
  &lt;/Product&gt;
  </code></pre>
  
  <p>AM not sure if we can provide value in @XmlAttribute(name = "usertype") in jaxb classes.</p>
  
  <p>Please let us know how we can proceed in above unusual scenario</p>