为什么杰克逊2不承认第一个大写字母，如果领先的骆驼案例字只有一个字母长？

I'm using Spring 4 MVC with Jackson 2 for my service. For one of the operations I have a request object that has an attribute where the leading camel case word this is only one letter in length:I'm using Spring 4 MVC with Jackson 2 for my se