On Tue, 31 May 2022 15:11:03 GMT, Jaikiran Pai <j...@openjdk.org> wrote:
>> Can I please get a review of this change which addresses the issue noted in >> https://bugs.openjdk.java.net/browse/JDK-8287318? >> >> The `ServerImpl` has a `Dispatcher` thread which uses a `Selector` to select >> keys of interested. The selected keys is then iterated over and each key is >> removed through the iterator. This is fine as long as the selector isn't >> then used to invoke select operation(s) while the iterator is still in use. >> Doing so leads to the underlying Set being potentially modified with updates >> to the selected keys. As a result any subsequent use of the iterator will >> lead to `ConcurrentModificationException` as seen in the linked issue. >> >> The commit here fixes that by creating a copy of the selected keys and >> iterating over it so that any subsequent select operation on the selector >> won't have impact on the Set that is being iterated upon. >> >> No new tests have been added given the intermittent nature of this issue. >> Existing tier1, tier2 and tier3 tests passed without any related failures, >> after this change. > > Jaikiran Pai has updated the pull request incrementally with one additional > commit since the last revision: > > Use Collection.toArray(...) instead of creating a copy of the collection Marked as reviewed by dfuchs (Reviewer). ------------- PR: https://git.openjdk.java.net/jdk/pull/8898
