- Collections.sort(fp.value.getUser(), new Comparator<User>() {
- @Override
- public int compare(User u1, User u2) {
- return u1.getId().compareTo(u2.getId());
- }
- });
+ Collections.sort(fp.value.getUser(), (Comparator<User>) (u1, u2) -> u1.getId().compareTo(u2.getId()));