protected List<Element> children(Element element, String childName) {
        List<Element> matches = new ArrayList<Element>();
        NodeList childNodes = element.getChildNodes();
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node node = childNodes.item(i);
            if (node instanceof Element) {
                Element childElement = (Element) node;

            Model childModel,
            ModelSource childSource,
            ModelBuilderRequest request,
            DefaultModelProblemCollector problems)
            throws ModelBuilderException {
        ModelData parentData = null;

        Parent parent = childModel.getParent();
        if (parent != null) {
            parentData = readParentLocally(childModel, childSource, request, problems);

            final Node childNode = nodeList.item(i);
            if (isPrunedTag(childNode, prunedTags)) {
                removedNodeList.add(childNode);
            } else {
                childNodeList.add(childNode);
            }
        }

        for (final Node childNode : removedNodeList) {
            node.removeChild(childNode);
        }

        parentModel.addModule("../child");

        MavenProject parentProject = new MavenProject(parentModel);

        Model childModel = new Model();
        childModel.setArtifactId("artifact");

        MavenProject childProject = new MavenProject(childModel);

        File childFile = new File(
                System.getProperty("java.io.tmpdir"),