public Optional<FileSystemNode> handleAsDescendantOfChild(VfsRelativePath pathInChild, T child) {
                return child.getNode(pathInChild, caseSensitivity);
            }

            @Override
            public Optional<FileSystemNode> handleAsAncestorOfChild(String childPath, T child) {
                return Optional.of(child);
            }

            @Override

            public Long handleAsDescendantOfChild(VfsRelativePath pathInChild, VersionHierarchy child) {
                return child.getVersion(pathInChild, caseSensitivity);
            }

            @Override
            public Long handleAsAncestorOfChild(String childPath, VersionHierarchy child) {
                return child.getMaxVersionInHierarchy();
            }

            @Override

        // load the child project, which inherits from p0...
        MavenProject project1 = getProject(pom1);

        System.out.println("\n\n");
        System.out.println("Child SCM URL is: " + project1.getScm().getUrl());
        System.out.println("Child SCM connection is: " + project1.getScm().getConnection());
        System.out.println(

        AtomicBoolean alreadyFoundASymlink = new AtomicBoolean(false);
        children.stream()
            .map(child -> child.getValue().relocate(targetPath + File.separatorChar + child.getPath(), interner)
                .map(relocatedSnapshot -> new ChildMap.Entry<FileSystemLocationSnapshot>(child.getPath(), relocatedSnapshot)))
            .forEach(relocatedChild -> {
                if (!alreadyFoundASymlink.get()) {

					allErrs = append(allErrs, field.Invalid(pth.Child("default"), s.Default.Object, "must not have unknown fields"))
				}
			}

			// check ObjectMeta/TypeMeta and everything else
			if err := schemaobjectmeta.Coerce(pth.Child("default"), s.Default.Object, s, s.XEmbeddedResource, false); err != nil {
				allErrs = append(allErrs, err)

				allErrs = append(allErrs, validateNestedValueValidationCompleteness(&vFld, sAdditionalPropertiesSchema, sPath.Child("additionalProperties"), vPath.Child("properties").Key(k), opts)...)
			}
		} else {
			allErrs = append(allErrs, validateNestedValueValidationCompleteness(&vFld, &sFld, sPath.Child("properties").Key(k), vPath.Child("properties").Key(k), opts)...)
		}
	}

	allErrs = append(allErrs, ValidateAnnotations(meta.GetAnnotations(), fldPath.Child("annotations"))...)
	allErrs = append(allErrs, ValidateOwnerReferences(meta.GetOwnerReferences(), fldPath.Child("ownerReferences"))...)
	allErrs = append(allErrs, ValidateFinalizers(meta.GetFinalizers(), fldPath.Child("finalizers"))...)

        T newChild = handler.handleAsDescendantOfChild(targetPath.pathFromChild(childPath), child);
        return withReplacedChild(newChild);
    }

    @Override
    public ChildMap<T> handleAsAncestorOfChild(VfsRelativePath targetPath, String childPath, T child) {
        T newChild = handler.handleAsAncestorOfChild(childPath, child);

class NestedModelRuleDescriptor extends AbstractModelRuleDescriptor {

    private final ModelRuleDescriptor parent;
    private final ModelRuleDescriptor child;

    public NestedModelRuleDescriptor(ModelRuleDescriptor parent, ModelRuleDescriptor child) {
        this.parent = parent;
        this.child = child;
    }

    @Override
    public void describeTo(Appendable appendable) {
        parent.describeTo(appendable);
        try {

        def outerBuild = new BuildTestFile(testDirectory, "root")
        def childBuild = new BuildTestFile(testDirectory.file("child"), "child")

        outerBuild.settingsFile << """
            includeBuild 'child'
        """
        outerBuild.file('buildSrc/src/main/java/Thing.java') << """
            class Thing {
                Thing() { System.out.println("outer thing"); }