for (E inEdge : incomingEdgesOf(vertex)) { V previousVertex = getEdgeSource(inEdge); Integer previousVertexTopoIndex = topoOrderMap.getTopologicalIndex(previousVertex);
for (E inEdge : incomingEdgesOf(vertex)) { V previousVertex = getEdgeSource(inEdge); Integer previousVertexTopoIndex = topoOrderMap.getTopologicalIndex(previousVertex);