title: EclipseLink MOXy @XmlPath support for axes/parent
body: <p>Are any of the following XPath expressions acceptable? Using version 2.3.1 of eclipselink</p>
  
  <pre><code>@XmlPath("../header/@type")
  @XmlPath("/root/header/@type")
  @XmlPath("parent::*/header/@type")
  </code></pre>
  
  <p>Basically this is in a class which repeats within the XML document (<code>/root/tag</code>), if that isn't clear I'll elaborate.</p>
  
  <p>I'm trying to traverse up the tree rather than down. My other <code>@XmlPath</code> annotations are working fine.</p>