dongjoon-hyun commented on a change in pull request #35553:
URL: https://github.com/apache/spark/pull/35553#discussion_r816399653



##########
File path: 
resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/VolcanoTestsSuite.scala
##########
@@ -16,16 +16,33 @@
  */
 package org.apache.spark.deploy.k8s.integrationtest
 
+import java.io.{File, FileInputStream}
+import java.util.UUID
+
+import scala.collection.JavaConverters._
+import scala.collection.mutable
+import scala.concurrent._
+
+import ExecutionContext.Implicits.global

Review comment:
       Actually, SPARK-37891 discourage this. If you need to use this please 
wrap this with `// scalastyle:off executioncontextglobal` and on.
   




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