1 files changed, 2 insertions, 10 deletions
diff --git a/kotlinx-coroutines-core/jvm/test/scheduling/SchedulerTestBase.kt b/kotlinx-coroutines-core/jvm/test/scheduling/SchedulerTestBase.kt
index bfabf5b2..dd969bdd 100644
--- a/kotlinx-coroutines-core/jvm/test/scheduling/SchedulerTestBase.kt
+++ b/kotlinx-coroutines-core/jvm/test/scheduling/SchedulerTestBase.kt
@@ -39,17 +39,9 @@ abstract class SchedulerTestBase : TestBase() {
             )
         }
 
-        /**
-         * Asserts that any number of pool worker threads in [range] exists at the time of method invocation
-         */
-        fun checkPoolThreadsExist(range: IntRange) {
-            val threads = Thread.getAllStackTraces().keys.asSequence().filter { it is CoroutineScheduler.Worker }.count()
-            assertTrue(threads in range, "Expected threads in $range interval, but has $threads")
-        }
-
         private fun maxSequenceNumber(): Int? {
             return Thread.getAllStackTraces().keys.asSequence().filter { it is CoroutineScheduler.Worker }
-                .map { sequenceNumber(it.name) }.max()
+                .map { sequenceNumber(it.name) }.maxOrNull()
         }
 
         private fun sequenceNumber(threadName: String): Int {
@@ -105,4 +97,4 @@ abstract class SchedulerTestBase : TestBase() {
             }
         }
     }
-}
-\ No newline at end of file
+}