[GitHub] [kafka] jsancio commented on a change in pull request #10344: MINOR: Remove use of NoSuchElementException

[GitBox <gi...@apache.org>]

jsancio commented on a change in pull request #10344:
URL: https://github.com/apache/kafka/pull/10344#discussion_r596455495



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File path: core/src/main/scala/kafka/raft/KafkaMetadataLog.scala
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@@ -37,8 +37,9 @@ final class KafkaMetadataLog private (
   log: Log,
   scheduler: Scheduler,
   // This object needs to be thread-safe because it is used by the snapshotting thread to notify the
-  // polling thread when snapshots are created.
-  snapshotIds: ConcurrentSkipListSet[OffsetAndEpoch],
+  // polling thread when snapshots are created. Using a Map instead of a Set so that there is no
+  // need to handle NoSuchElementException.
+  snapshotIds: ConcurrentSkipListMap[OffsetAndEpoch, Unit],

Review comment:
       `ConcurrentSkipListMap` has `lastEntry` and `firstEntry` that return `null` if the map is empty. `ConcurrentSkipListSet` only has `last` and `first` which throws if the set is empty. :dizzy: 




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