protected Element getChild(Element element, String childName) {
        Element child = findChild(element, childName);
        if (child != null) {
            return child;
        }
        throw new RuntimeException(String.format("No <%s> element found in <%s>", childName, element.getTagName()));
    }

    protected Element findChild(Element element, String childName) {
        NodeList childNodes = element.getChildNodes();

      // Decode the current node.
      int firstChild = trieData.charAt(nodeIndex * NODE_SIZE + 1);
      int numChildren = trieData.charAt(nodeIndex * NODE_SIZE + 2) & CHILDREN_MASK;

      nodeIndex = findChild(firstChild, numChildren, labels.get(i));
      if (nodeIndex == -1) {
        break;
      }

      // Check for matches at this node. Higher priority rules are checked last to overwrite.

        List<Element> valueTitles = new ArrayList<Element>();
        for (int i = 1; i < header.size(); i++) {
            Element element = header.get(i);
            Element override = findChild(element, "overrides");
            if (override != null) {
                element.removeChild(override);
                inheritedValueTitleMapping.put(override.getTextContent(), element);
            }

        if (contextPath.length() > 0 && contextPath.endsWith("/")) {
            contextPath = contextPath.replaceAll("/+$", StringUtil.EMPTY);
        }
        final Context context = (Context) server.getHost().findChild(contextPath);
        if (context != null) {
            context.setResources(new FessWebResourceRoot(context));
            context.setCookieProcessor(new Rfc6265CookieProcessor());
        }
    }

    /**