I'm trying to run an xpath on an xml with nested default namespaces. I'd rather not specify any namespaces in the xpath, is this possible?

I have made a minimal example below that shows what I'd like to do and obviously it doesn't work. Is it not possible to declare multiple namespaces with empty prefix?


import net.sf.saxon.s9api.DocumentBuilder;
import net.sf.saxon.s9api.Processor;
import net.sf.saxon.s9api.XPathCompiler;
import net.sf.saxon.s9api.XPathSelector;
import net.sf.saxon.s9api.XdmItem;
import net.sf.saxon.s9api.XdmNode;
import java.io.StringReader;
import javax.xml.transform.stream.StreamSource;

public class Test {
   public static void main(String[] args) throws Exception {
      String xml = "<a xmlns=\"http://example.com/schema1\">" +
                   "  <b>Testing</b>" +
                   "  <c xmlns=\"http://example.com/schema2\">" +
                   "    <d>Again</d>" +
                   "  </c>" +

      Processor processor = new Processor(false);

      DocumentBuilder builder = processor.newDocumentBuilder();
      XdmNode metadataNode = builder.build(new StreamSource(new StringReader(xml)));
      XPathCompiler xpathCompiler = processor.newXPathCompiler();
      xpathCompiler.declareNamespace("", "http://example.com/schema1");
      xpathCompiler.declareNamespace("", "http://example.com/schema2");
      XPathSelector selector = xpathCompiler.compile("/a/c/d/text()").load();

      for (XdmItem xdmItem : selector.evaluate()) {
         System.out.println("Val = " + xdmItem.getStringValue());