srowen commented on a change in pull request #26911: Remove usage of Guava that
breaks in 27; replace with workalikes
URL: https://github.com/apache/spark/pull/26911#discussion_r358416625
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File path: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala
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@@ -405,9 +405,9 @@ private[spark] object HadoopRDD extends Logging {
* The three methods below are helpers for accessing the local map, a
property of the SparkEnv of
* the local process.
*/
- def getCachedMetadata(key: String): Any =
SparkEnv.get.hadoopJobMetadata.get(key)
+ def getCachedMetadata(key: String): AnyRef =
SparkEnv.get.hadoopJobMetadata.get(key)
Review comment:
Problem here was using a non-ref type in a Java Map. This is only really
used for a JobConf anyway
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