Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/15377#discussion_r84212380
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -2432,6 +2432,26 @@ private[spark] object Utils extends Logging {
}
}
+private[util] object CallerContext {
+ private def callerContextClassExists(): Boolean = {
+ try {
+ // scalastyle:off classforname
+ Class.forName("org.apache.hadoop.ipc.CallerContext")
+ Class.forName("org.apache.hadoop.ipc.CallerContext$Builder")
+ // scalastyle:on classforname
+ true
+ } catch {
+ case _ : ClassNotFoundException => false
+ }
+ }
--- End diff --
The above code can be simplified with `Try { xxxx }.isSuccess`, please
check `scala.util.Try`. Then these two methods can be merged into one
expression.
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