@Override
        protected void afterLoadGraphWith(final Graph graph) throws Exception {
            final int numNodes = numberOfVertices;
            for (int i = 0; i < numNodes; i++) graph.addVertex("oid", i);
            tryCommit(graph);
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/algorithm/generator/DistributionGeneratorTest.java