@Nullable
  public static Element findComponent(@Nullable Element root, @NonNls String componentName) {
    for (Element element : JDOMUtil.getChildren(root, COMPONENT_ELEMENT)) {
      if (isComponent(componentName, element)) {
        return element;
      }
    }
    return null;
  }
@Nullable
  public static Element findComponent(@Nullable Element root, @NonNls String componentName)