@Override
        public Traversal<List<Integer>, Number> get_g_injectXlistXnull_10_5_nullXX_sumXlocalX() {
            return g.inject(Arrays.asList(null, 10, 5, null)).sum(Scope.local);
        }
@author Daniel Kuppitz (http://gremlin.guru)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/SumTest.java