public static List<? extends DomElement> getIdentitySiblings(DomElement element) {
    final GenericDomValue nameDomElement = element.getGenericInfo().getNameDomElement(element);
    if (nameDomElement == null) return Collections.emptyList();

    final NameValue nameValue = nameDomElement.getAnnotation(NameValue.class);
    if (nameValue == null || !nameValue.unique()) return Collections.emptyList();

    final String stringValue = ElementPresentationManager.getElementName(element);
    if (stringValue == null) return Collections.emptyList();

    final DomElement scope = element.getManager().getIdentityScope(element);
    if (scope == null) return Collections.emptyList();

    final DomGenericInfo domGenericInfo = scope.getGenericInfo();
    final String tagName = element.getXmlElementName();
    final DomCollectionChildDescription childDescription =
        domGenericInfo.getCollectionChildDescription(tagName, element.getXmlElementNamespaceKey());
    if (childDescription != null) {
      final ArrayList<DomElement> list = new ArrayList<>(childDescription.getValues(scope));
      list.remove(element);
      return list;
    }
    return Collections.emptyList();
  }
 @Nullable
 public static DomElement findDuplicateNamedValue(DomElement element, String newName) {
   return ElementPresentationManager.findByName(getIdentitySiblings(element), newName);
 }