docs: protected String buildMeAndNeighbor(ReadableJobAttr me, ReadableJobState neighbor, Function<ReadableJobState, String> stateDisp,
              NeighborConcurrentGroup group) {
          final StringBuilder sb = new StringBuilder();
          sb.append("me=").append(me.toIdentityDisp());
          sb.append(", neighbor=").append(neighbor.toIdentityDisp());
          sb.append("(").append(stateDisp.apply(neighbor)).append(")");
          sb.append(", group=").append(group.getGroupName());
          return sb.toString();
      }