Sax parse exception when XML has xsi:type attribute

Question

Using SAX and Java I want to parse an XML string but get this exception

[Fatal Error] :1:92: The prefix "xsi" for attribute "xsi:type" associated with an element type "device" is not bound.

    try {
        SAXParserFactory factory = SAXParserFactory.newInstance();
        factory.setNamespaceAware(false);
        factory.setValidating(false);

        SAXParser parser = factory.newSAXParser();
        XMLReader xmlReader = parser.getXMLReader();
        handler = new ConfigHandler();

        xmlReader = XMLReaderFactory.createXMLReader();
        // assign our handler
        xmlReader.setContentHandler(handler);
        // perform the synchronous parse
        xmlReader.parse(new InputSource(new StringReader(xml)));

    } catch (Exception e) {
        e.printStackTrace();
    }

Here is the xml

<device  xsi:type="axl:XIPPhone" ctiid="182" uuid="{20a9f66a-fb1f-6981-5851-1474258054dc}">
<fullConfig>true</fullConfig>
<portalDefaultServer>serveraxd.lestry.com</portalDefaultServer>
<deviceProtocol>SOORTY</deviceProtocol>
..
..
</device>

I am not able to change the XML content in this case.

Answer 1

Exactly as the error message says, you have not provided a namespace declaration for the xsi: prefix. Add

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

to your top-level element (the <device> element).