Minimal test case to trigger NPE in data.xml.

minimal.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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   xmlns:dc="http://purl.org/dc/elements/1.1/"
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   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
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   height="1052.3625"
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   sodipodi:docname="3-0.svg"><metadata
     id="metadata8"><rdf:RDF><cc:Work
         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title /></cc:Work></rdf:RDF></metadata><defs
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     bordercolor="#666666"
     borderopacity="1"
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     gridtolerance="10"
     guidetolerance="10"
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         id="cuneiforms"
         clip-path="url(#clipPath22)"><g
           id="g1366"
           transform="translate(304.5977,369.7344)" /><g
           id="g2042"
           transform="translate(322.80776,442.55445)" /><g
           id="g2530"
           transform="translate(385.72286,466.37185)"><path
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           id="g2534"
           transform="translate(385.74826,466.31225)"><path
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