#061ConcurrentModificationException on List Removal
java.hardJAVA
1public void removeExpired(List<Session> sessions) {
2 for (Session s : sessions) {
3 if (s.isExpired()) {
4 sessions.remove(s);
5 }
6 }
7}
no lines flagged
#061PracticeHard25 min · 200 XP
ConcurrentModificationException on List Removal
This method throws a ConcurrentModificationException when filtering out expired sessions from a list.
Flagged lines
No lines flagged yet
What's wrong?
Flag a line or write a note to submit.