I'm trying to convert XML to HTMl using Java Saxon library with Jcabi-XML.
XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:output method="html" version="5.0"/>
<xsl:template match="/content">
<html lang="en">
<head></head>
<body></body>
</html>
</xsl:template>
</xsl:stylesheet>
XML:
<?xml version="1.0"?>
<content>This text results error</content>
Java:
package com.test;
import java.io.File;
import java.io.FileNotFoundException;
import com.jcabi.xml.XMLDocument;
import com.jcabi.xml.XSLDocument;
public class Main {
public static void main(String... args) {
try {
final XMLDocument xml = new XMLDocument(
new File("test.xml")
);
final XSLDocument xlst = new XSLDocument(
new File("test.xslt")
);
xlst.transform(xml);
} catch (final FileNotFoundException ex) {
System.out.println(ex.getMessage());
}
}
}
This code results java.lang.IllegalArgumentException: net.sf.saxon.trans.XPathException: Unsupported HTML version: 1.0.
I explicitly set HTML5 version, but it doesn't affect to result. How to avoid this error?
Libraries versions:
- Jcabi-XML:
0.23.2 - Saxon-HE:
9.8.0-15
As far as I can tell from the stack trace (showing
the exception is triggered by the line https://github.com/jcabi/jcabi-xml/blob/0.23.2/src/main/java/com/jcabi/xml/XMLDocument.java#L505 doing
trans.setOutputProperty(OutputKeys.VERSION, "1.0");, that seems to be the culprit.So basically it seems that the library uses Saxon with the JAXP Transformer API but at that line tries to override the
versionas1.0and Saxon indeed doesn't support it for the HTML output it is trying to do based on thehtmloutput method being set in the stylesheet.As you want to use Saxon 9.8 (or perhaps later, given that the supported versions are 10 and 11), I would suggest to look at Saxon's API documented at https://www.saxonica.com/documentation11/index.html#!using-xsl/embedding/s9api-transformation and just use that API to perform the XSLT transformation.