srowen commented on a change in pull request #25389: [SPARK-28657][CORE] Fix
currentContext Instance failed sometimes
URL: https://github.com/apache/spark/pull/25389#discussion_r321278362
##########
File path: core/src/main/scala/org/apache/spark/util/Utils.scala
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@@ -2991,7 +2991,7 @@ private[spark] class CallerContext(
if (CallerContext.callerContextSupported) {
try {
val callerContext =
Utils.classForName("org.apache.hadoop.ipc.CallerContext")
- val builder =
Utils.classForName("org.apache.hadoop.ipc.CallerContext$Builder")
+ val builder: Class[_] =
Utils.classForName("org.apache.hadoop.ipc.CallerContext$Builder")
Review comment:
OK, that's odd, but without a generic type we should see the same thing in
many places. I can't see why this one behaves differently. Maybe so, but I'm
worried the cause is actually different.
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