Sorry if this is not the right place to post a bug report, but I couldn¹t find any other list or email address on the MASON page. Details below. Russ ------ The suspected bug is in the ³addEdge(Edge e)² method of the Network class. I get a exception: ³Attempted to add an Edge already added elsewhere² when actually the network is empty after a clear(). Context: Prior to the code snippet shown, I have initialized a network ³consumerSocialNetwork² and have been updating it for many steps during the priming process for my agents. Once priming is complete, I want to reset the network to its initial topology and continue the run. > This code works: > consumerSocialNetwork.clear(); > Edge [][] e = softRestartSocialNetwork.getAdjacencyMatrix(); > for (int i = 0; i < e.length; i++){ > for (int j = i + 1; j < e[i].length; j++){ > if (e[i][j]!=null){ > Consumer from = (Consumer)e[i][j].from(); > Consumer to = (Consumer)e[i][j].to(); > SocialTie tie = (SocialTie)e[i][j].getInfo(); > consumerSocialNetwork.addEdge(from,to,tie); > } > } > } > --------------------------------------------------- > This code, which should be equivalent, does not work: > consumerSocialNetwork.clear(); > Edge [][] e = softRestartSocialNetwork.getAdjacencyMatrix(); > > for (int i = 0; i < e.length; i++){ > for (int j = i + 1; j < e[i].length; j++){ > if (e[i][j]!=null){ > consumerSocialNetwork.addEdge(e[i][j]); > } > } > } > ------------------------------------------------ > OUTPUT > Diagnostic print statement for e[i][j], i = 0, j = 1: > > array indices = (0, 1); edge = > Edge[agents.Consumer@7031086c<->agents.Consumer@2670d85b: > valueNets.SocialTie@e74917] > > Error message: > java.lang.RuntimeException: Attempted to add an Edge already added elsewhere > at sim.field.network.Network.addEdge(Network.java:355) > at valueNets.ValueNets.softRestart(ValueNets.java:1600) > at valueNets.ValueNets.access$000(ValueNets.java:73) > at valueNets.ValueNets$2.step(ValueNets.java:1384) > at sim.engine.Repeat.step(Schedule.java:766) > at sim.engine.Schedule.step(Schedule.java:324) > at sim.display.GUIState.step(GUIState.java:462) > at sim.display.Console$58.run(Console.java:2532) > at java.lang.Thread.run(Thread.java:680)