protected T processObjectInputSingleItemArray(
            JSONReader jsonReader,
            Type fieldType,
            Object fieldName,
            long features
    ) {
        String message = "expect {, but [, class " + this.typeName;
        if (fieldName != null) {
            message += ", parent fieldName " + fieldName;
        }
        String info = jsonReader.info(message);

        long featuresAll = jsonReader.features(features);
        if ((featuresAll & JSONReader.Feature.SupportSmartMatch.mask) != 0) {
            Type itemType = fieldType == null ? this.objectClass : fieldType;
            List list = jsonReader.readArray(itemType);

            // 对比2.0.58的非安卓分支发现，下面的三行应该删除，不然可能会产生空指针bug
            if (list.size() == 1) {
                return (T) list.get(0);
            }

            if (list != null) {
                if (list.size() == 0) {
                    return null;
                }
                if (list.size() == 1) {
                    return (T) list.get(0);
                }
            }
        }
        throw new JSONException(info);
    }