@NotNull
  Collection<XmlNamedReferenceProviderBean> getNamedReferenceProviderBeans(@NotNull XmlNamedReferenceHost element) {
    final String hostName = element.getHostName();
    if (hostName == null) {
      return Collections.emptyList();
    }
    return byHostClass(element).byHostName(hostName);
  }
@NotNull
  Collection<XmlNamedReferenceProviderBean> getNamedReferenceProviderBeans(@NotNull XmlNamedReferenceHost element)