@Before public void setUp() throws Exception { StoreConfig config = new StoreConfig(); config.setDataFileName(DATA_FILE_NAME); config.setDataMappedMemorySize(DATA_MAPPED_BUFFER_SIZE); config.setInitialFileSize(DATA_FILE_SIZE); Kryo kryo = new Kryo(); kryo.register(VertexImpl.class); TypeResolver.registerClass(VertexImpl.class, (byte) 0); store = new VertexStore(config, kryo); store.start(); }