import java.util.Set;
import java.util.concurrent.TimeoutException;
import java.util.function.Consumer;
-import java.util.stream.Collectors;
public class MultiAccountManagerImpl implements MultiAccountManager {
@Override
public List<String> getAccountNumbers() {
synchronized (managers) {
- return managers.stream().map(Manager::getSelfNumber).collect(Collectors.toList());
+ return managers.stream().map(Manager::getSelfNumber).toList();
}
}