Update

src/de/tud/kom/p2psim/impl/topology/TopologyFactory.java

@@ -78,7 +78,7 @@ public class TopologyFactory implements HostComponentFactory {
 
 	private ObstacleModel obstacleModel;
 
-	private TopologyComponentFactory topologyComponentFactory = null;
+	private TopologyComponentFactory topologyComponentFactory = new DefaultTopologyComponent.Factory();
 
 	private boolean registerAsInformationProviderInSiS = false;