add a unused import to test

apache · Nov 20, 2020 · b9026f2 · b9026f2
1 parent a92c80d
commit b9026f2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/core/src/main/scala/org/apache/spark/SparkContext.scala b/core/src/main/scala/org/apache/spark/SparkContext.scala
@@ -27,6 +27,7 @@ import scala.collection.JavaConverters._
 import scala.collection.Map
 import scala.collection.immutable
 import scala.collection.mutable.HashMap
+import scala.collection.mutable.HashSet
 import scala.language.implicitConversions
 import scala.reflect.{classTag, ClassTag}
 import scala.util.control.NonFatal