### Question:
ProductServiceImpl implements ProductService { @Override public List<Integer> getIncrementValue(List<Integer> nums, int incrementValue) { log.debug("getIncrementValue : nums : {}", nums); StopWatch sw = new StopWatch(); sw.start(); List<Integer> value = productDao.getIncrementValue(nums, incrementValue); sw.stop(); System.out.format("Seconds=%1$s, value=%2$s%n", sw.getTotalTimeSeconds(), value); return value; }  List<Product> findAllProducts(); Product findProduct(String name); int getPrice(String name); void addProduct(Product product); void changeProduct(String productName, int overridePrice); List<Product> resetPriceForAllProducts(); @Override List<Integer> getIncrementValue(List<Integer> nums, int incrementValue); List<Product> updatePriceForGivenProductName(List<String> nameList, int overridePrice); @Override List<Product> getAllProductsFromMemory(); @Override Product getProductFromMemory(String name); @Override List<Product> getProductGivenProductNameFromMemory(List<String> nameList);  }### Answer:
@Test public void testReadThroughMultiCache() { this.executeWithMemcachedFlush(productService, () -> { List<Integer> nums = new ArrayList<Integer>(Arrays.asList(2, 3, 4, 5)); productService.getIncrementValue(nums, 4); productService.getIncrementValue(nums, 1); }); }