Github user henryr commented on a diff in the pull request:
https://github.com/apache/spark/pull/19893#discussion_r155358362
--- Diff: core/src/test/scala/org/apache/spark/SparkFunSuite.scala ---
@@ -52,6 +62,23 @@ abstract class SparkFunSuite
getTestResourceFile(file).getCanonicalPath
}
+ private def saveThreadNames(): Unit = {
+ beforeAllTestThreadNames =
Thread.getAllStackTraces.keySet().map(_.getName).toSet
+ }
+
+ private def printRemainingThreadNames(): Unit = {
+ val currentThreadNames =
Thread.getAllStackTraces.keySet().map(_.getName).toSet
+ val whitelistedThreadNames = currentThreadNames.
--- End diff --
nit: '.' goes on next line
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