mridulm commented on code in PR #50573:
URL: https://github.com/apache/spark/pull/50573#discussion_r2049076181
##########
core/src/main/scala/org/apache/spark/serializer/SerializationDebugger.scala:
##########
@@ -112,11 +112,11 @@ private[spark] object SerializationDebugger extends
Logging {
val elem = s"externalizable object (class ${e.getClass.getName},
$e)"
visitExternalizable(e, elem :: stack)
- case s: Object with java.io.Serializable if Utils.isTesting =>
+ case s: Object with java.io.Serializable =>
val str = try {
s.toString
} catch {
- case _: SparkRuntimeException => "exception in toString"
+ case _: SparkRuntimeException if Utils.isTesting => "exception
in toString"
Review Comment:
NPE I was referring to is what is getting thrown as part of executing
`toString` : what we addressed in #50402
The current reason for NPE might be (2), as you indicated - and so scoped to
testing currently.
But this can happen for any other reason too (including bugs in user udf's
for example).
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