docs: @Override
      public List<Channel> getChannels()
      {
          List<Channel> channels = new LinkedList<>();
          if (_acceptingParty != null)
              channels.add(_acceptingParty);
          if (_originatingParty != null)
              channels.add(_originatingParty);
          if (_transferTargetParty != null)
              channels.add(_transferTargetParty);
          return channels;
      }