Why is root marked as changed?

[denov]

I'm trying to compare a couple DTO that's mostly Strings, longs, and a couple List<> of other DTOs. I'm only expecting to '/titleText' see be outputted and not '/'. All my DTOs have full equals() and hash() methods.

    @Test
    public void compareReferences() {
        ReferenceDTO ref1 = getReferenceDTO("test 1");
        ReferenceDTO ref2 = getReferenceDTO("test 2");


        DiffNode diff = ObjectDifferBuilder.buildDefault().compare(ref1, ref2);

        assertThat(diff.hasChanges(), is(true));

        diff.visit((node, visit) -> System.out.println(node.getPath() + " => " + node.getState()));

        System.out.println("\n---\n");

        diff.visit((node, visit) -> {
            final Object baseValue = node.canonicalGet(ref1);
            final Object workingValue = node.canonicalGet(ref2);
            final String message = node.getPath() + " changed from " + baseValue + " to " + workingValue;
            System.out.println(message);
        });
    }


    public ReferenceDTO getReferenceDTO(String titleText) {
        ReferenceDTO reference = new ReferenceDTO();
        reference.titleText = titleText;
        return reference;
    }

/ => CHANGED
/titleText => CHANGED

---

/ changed from org.magic.web.dto.reference.ReferenceDTO@565f390[referenceId=,sectionId=,order=,shortName=,titleText=test] to org.magic.web.dto.reference.ReferenceDTO@7dc3712[referenceId=,sectionId=,order=,shortName=,titleText=test 2]
/titleText changed from test to test 2

[denov]

I figured it out. I missed this part in the getting started page.

if (node.hasChanges() && !node.hasChildren()) { }