m1a2st commented on code in PR #15808:
URL: https://github.com/apache/kafka/pull/15808#discussion_r1584199554
##########
core/src/test/scala/unit/kafka/log/remote/RemoteIndexCacheTest.scala:
##########
@@ -1086,4 +1087,10 @@ class RemoteIndexCacheTest {
case e @ (_ : NoSuchFileException | _ : UncheckedIOException) =>
Optional.empty()
}
}
+
+ private def numThreadsRunning(threadNamePrefix: String, isDaemon: Boolean):
mutable.Set[Thread] = {
Review Comment:
I change the function name, and modify using java set
```java
private def getRunningCleanerThread: java.util.Set[Thread] = {
Thread.getAllStackTraces.keySet()
.stream()
.filter(t => t.isAlive &&
t.getName.startsWith(REMOTE_LOG_INDEX_CACHE_CLEANER_THREAD))
.collect(Collectors.toSet())
}
```
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