diff --git a/core/src/main/scala/org/apache/spark/storage/StorageLevel.scala b/core/src/main/scala/org/apache/spark/storage/StorageLevel.scala index 56edc4fe2e4adea35dc1d78e0f0ef9505970a380..e5e1cf5a69a1912ff59aef47a6bbafa9d05c3a44 100644 --- a/core/src/main/scala/org/apache/spark/storage/StorageLevel.scala +++ b/core/src/main/scala/org/apache/spark/storage/StorageLevel.scala @@ -18,6 +18,7 @@ package org.apache.spark.storage import java.io.{Externalizable, IOException, ObjectInput, ObjectOutput} +import java.util.concurrent.ConcurrentHashMap import org.apache.spark.annotation.DeveloperApi import org.apache.spark.util.Utils @@ -220,8 +221,7 @@ object StorageLevel { getCachedStorageLevel(obj) } - private[spark] val storageLevelCache = - new java.util.concurrent.ConcurrentHashMap[StorageLevel, StorageLevel]() + private[spark] val storageLevelCache = new ConcurrentHashMap[StorageLevel, StorageLevel]() private[spark] def getCachedStorageLevel(level: StorageLevel): StorageLevel = { storageLevelCache.putIfAbsent(level, level)