RDF validator null pointer exception

The following small sample file causes a java.lang.NullPointerExection.
It may have RDF errors, but it shouldn't be failing with an exception.

 

Regards,

Sam Greenfield

 

File:

<?xml version="1.0"?> 
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
         xmlns:x="example:ns:x" 
> 
  <rdf:Description> 
    <x:xes> 
      <rdf:Description> 
        <x:x x:version="ver"> 
              <rdf:Description /> 
        </x:x> 
      </rdf:Description> 
    </x:xes> 
  </rdf:Description> 
</rdf:RDF> 

 

Error:

Parser Loading Error

Exception parsing: java.lang.NullPointerException 

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