I'm using DaizyDIff library to compare two html files. I wrote a java code to implement the DaizyDiff. but while running I'm getting NULL pointer exception on net.sf.saxon.event.ReceivingContentHandler.startElement
I have tries multiple approach on SAXTransformerFactory , but I couldn't figure out
public static void daisyDiffTest() throws Exception {
String html1 = "<html><body>var v2</body></html>";
String html2 = "<html>
<body>
Hello world
</body>
</html>";
try {
StringWriter finalResult = new StringWriter();
SAXTransformerFactory tf = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
TransformerHandler result = tf.newTransformerHandler();
result.getTransformer().setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
result.getTransformer().setOutputProperty(OutputKeys.INDENT, "yes");
result.getTransformer().setOutputProperty(OutputKeys.METHOD, "html");
result.getTransformer().setOutputProperty(OutputKeys.ENCODING, "UTF-8");
result.setResult(new StreamResult(finalResult));
ContentHandler postProcess = result;
Locale val = Locale.ENGLISH;
DaisyDiff.diffHTML(new InputSource(new StringReader(html1)), new InputSource(new StringReader(html2)),
postProcess, "test", val);
System.out.println(finalResult.toString());
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Expected result would be diff in the HTML file.
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