警告：[未选中] Map 的未选中强制转换

Question

I found the following exception. How do I resolve that warning?

Exception:

warning: [unchecked] unchecked cast
  Map<String, Object> map = (Map<String, Object>) obj;
                                                           
  required: Map<String,Object>
  found:    Object

Code:

List<?> results = response.getResults();
for (Object result : results) {
Map<String, Object> map = (Map<String, Object>) result;

Answer 1

You can't. Casting an Object to a Map will always give you this warning.

The only way to fix it is to have a more specific type than Object in the first place.