How can I write list in class format

Question

I tried to add class format for list in 2 ways below but it doesn't work.

nullable((Class<List<Integer>>) new ArrayList<Integer>().getClass())

nullable(Class<List<Integer>>)

The nullable function is from org.mockito.ArgumentMatchers.nullable(Class<List> clazz).

Answer 1

Use below.

Class<List<Integer>> klazz =
   (Class<List<Integer>>) new ArrayList<Integer>().getClass();
// WARNING! Type safety: Unchecked cast from
//   Class<capture#1-of ? extends ArrayList> to Class<List<Integer>>