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    java.lang.NullPointerException
        at org.apache.xml.dtm.ref.dom2dtm.DOM2DTM.dispatchNodeData(DOM2DTM.java:1687)
        at org.apache.xml.dtm.ref.dom2dtm.DOM2DTM.dispatchCharactersEvents(DOM2DTM.java:1619)
        at org.apache.xml.dtm.ref.DTMTreeWalker.dispatachChars(DTMTreeWalker.java:202)
        at org.apache.xml.dtm.ref.DTMTreeWalker.startNode(DTMTreeWalker.java:331)
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