UndirectedGraph<LabelVertex, WeightedEdge> graphModel =
new ZachBuilder().getAffinityGraph();
System.out.println("MODEL GRAPH IS " + graphModel);
LPADriver driver = (LPADriver)
finderField.get(serverNode.getNodeMappingService());
GraphListener serverListener = driver.getGraphListener();
AffinityGraphBuilder builder = driver.getGraphBuilder();
// The graph can only be found on the server side. Let's make
// sure it looks like the expected Zachary graph.
// The core server graph listener builds a DistGraphBuilder,
// which (on the core node) creates the DistGraphBuilderServerImpl.