chia7712 commented on code in PR #15808:
URL: https://github.com/apache/kafka/pull/15808#discussion_r1584212773
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core/src/test/scala/unit/kafka/log/remote/RemoteIndexCacheTest.scala:
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@@ -321,16 +322,16 @@ class RemoteIndexCacheTest {
// Give the thread cleaner thread some time to throw an exception
Thread.sleep(100)
// Verify that Cleaner thread is still running even when exception is
thrown in doWork()
- var threads =
TestUtils.numThreadsRunning(REMOTE_LOG_INDEX_CACHE_CLEANER_THREAD, isDaemon =
true)
+ var threads = getRunningCleanerThread
assertEquals(1, threads.size,
- s"Found unexpected ${threads.size} threads=${threads.map(t =>
t.getName).mkString(", ")}")
+ s"Found unexpected ${threads.size} threads=${threads.stream().map(t =>
t.getName).collect(Collectors.joining(", "))}")
Review Comment:
`threads.stream().map[String](t => t.getName).collect(Collectors.joining(",
"))`
You can define the `type` explicitly to fix the type mismatch in scala 2.12
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