小编use*_*561的帖子

用一个例子解释问题:

public class DataWrapper<T> {
    T data;
};

DataWrapper<Object> obj1 = new DataWrapper<Object>();

List<DataWrapper<?>> anyDataList = Arrays.asList(obj1); //this doesn't work

DataWrapper<Integer> objInt = new DataWrapper<Integer>();
anyDataList = Arrays.asList(obj1, objInt); //this work

我无法理解为什么"Arrays.asList(obj1)"不起作用？