fix the bug from using type Shape
fix the bug from using type Shape

apache/incubator-singa,ijingo/incubator-singa,nusdbsystem/incubator-singa,ijingo/incubator-singa,apache/incubator-singa,nudles/incubator-singa,apache/incubator-singa,nusdbsystem/incubator-singa,nusdbsystem/incubator-singa,nudles/incubator-singa,nusdbsystem/incubator-singa,kaiping/incubator-singa,nusdbsystem/incubator-singa,ijingo/incubator-singa,nudles/incubator-singa,apache/incubator-singa,kaiping/incubator-singa,kaiping/incubator-singa,apache/incubator-singa,ijingo/incubator-singa,ijingo/incubator-singa,kaiping/incubator-singa,kaiping/incubator-singa,nudles/incubator-singa,nudles/incubator-singa