如何比较撒克逊的s9api XdmValues的平等性？

import net.sf.saxon.s9api.*;

public class XdmValueComparison {
    public static void main(String[] args) throws SaxonApiException {
        Processor processor = new Processor(false);
        XPathCompiler xpathCompiler = processor.newXPathCompiler();
        XdmNode document1 = xpathCompiler.evaluateSingle("/path/to/document1.xml");
        XdmNode document2 = xpathCompiler.evaluateSingle("/path/to/document2.xml");

        XdmValue value1 = document1.axisIterator(Axis.DESCENDANT).asUnordered().materialize();
        XdmValue value2 = document2.axisIterator(Axis.DESCENDANT).asUnordered().materialize();

        boolean isEqual = value1.equals(value2);
        System.out.println("XdmValues are equal: " + isEqual);
    }
}