/guava/android/guava/src/com/google/common/graph/StandardMutableNetwork.java
connectionsV = addNode( nodeV) ;
connectionsV = addNodeInternal ( nodeV ) ;
if (connectionsU == null) { connectionsU = addNodeInternal(nodeU); } connectionsU.addOutEdge(edge, nodeV); NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV); if (connectionsV == null) { <extra_id_0> } connectionsV.addInEdge(edge, nodeU, isSelfLoop); edgeToReferenceNode.put(edge, nodeU); return true; } @Override