}
        }
        ExcludeSpec nodeExclusions = computeNodeExclusions();
        if (incomingEdges.isEmpty()) {
            return nodeExclusions;
        }

        return computeExclusionFilter(incomingEdges, nodeExclusions);
    }

    private ExcludeSpec computeNodeExclusions() {
        if (cachedNodeExclusions == null) {