我以map<integer，findeduser>格式对数据进行排序，其中integer是system.currenttimemillis（）/1000和findeduser类中的时间戳

Map<Integer, FindedUser> reverseSortedMap = new TreeMap<>(Collections.reverseOrder());
        reverseSortedMap.putAll(addedUsersMap);

for (Map.Entry<Integer, FindedUser> entry : reverseSortedMap.entrySet()) {
            FindedUser user = entry.getValue();
            System.out.println(entry.getKey()+" "+entry.getValue());
            helperMap.put(entry.getKey(), new FindedUser(user.getId(), user.getName(), user.getTimestamp()));
        }

得到了正确的数据

1609093171 FindedUser{name='ccc', id='11', timestamp='1609093171'}
1609092871 FindedUser{name='bbb', id='10', timestamp='1609092871'}
1609092015 FindedUser{name='aaa', id='9', timestamp='1609092015'}

但当我将其发送到listview时：

MyAdapterHash addedUsersAdapter = new MyAdapterHash(helperMap);
        addedUsersListView.setAdapter(addedUsersAdapter);
        addedUsersAdapter.notifyDataSetChanged();

结果排序不正确：

1609092015 FindedUser{name='aaa', id='9', timestamp='1609092015'}
1609093171 FindedUser{name='ccc', id='11', timestamp='1609093171'}
1609092871 FindedUser{name='bbb', id='10', timestamp='1609092871'}

问题出在哪里？