/guava/android/guava/src/com/google/common/graph/DirectedGraphConnections.java
return null;
return edge;
@CheckForNull protected EndpointPair<N> computeNext() { while (resultWithDoubleSelfLoop.hasNext()) { EndpointPair<N> edge = resultWithDoubleSelfLoop.next(); if (edge.nodeU().equals(edge.nodeV())) { if (!alreadySeenSelfLoop.getAndSet(true)) { <extra_id_0> } } else { return edge; } } return endOfData();