java中列表的情况下，使用jackson json反序列化错误

我已经基于这个类用Jackson创建了一个JSON：

    public class One {
    public long param;

    public List<Two> two;

    public static class Two{
        public long param;
        public List<Short> param2;
    }
}

现在我想读取并加载参数，并定义：

    mapper.configure(Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true); //tried with and without
    JsonFactory f = new JsonFactory();
    JsonParser jp;
jp = f.createJsonParser(FILE);
    jp.nextToken();
    while (jp.nextToken() == JsonToken.START_OBJECT) {
         mapper.readValue(jp, One.class);
     }
     jp.close();

我有一个错误：

Can not deserialize instance of json.One$Two out of START_ARRAY

---

我找到了解决办法

加载json文件：

List<One> myObjects = new ArrayList<One>();
myObjects = mapper.readValue(FILE, mapper.getTypeFactory().constructCollectionType(List.class, One.class));

List<One> myObjects = new ArrayList<One>();
myObjects = mapper.readValue(FILE, mapper.getTypeFactory().constructCollectionType(List.class, One.class));

   public class One {
    public long param;
    @JsonProperty("Two")
    public List<Two> two;

    public static class Two{
        public long param;
        public List<Short> param2;
    }
}