docs: @Action(semantics = SemanticsOf.SAFE)
      @CollectionLayout(render = RenderType.EAGERLY)
      @ActionLayout(contributed = Contributed.AS_ASSOCIATION)
      public SortedSet<CommunicationChannel> communicationChannels(final CommunicationChannelOwner owner) {
          return communicationChannelRepository.findByOwner(owner);
      }