Github user willb commented on a diff in the pull request:
https://github.com/apache/spark/pull/1413#discussion_r14916362
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -809,7 +809,11 @@ private[spark] object Utils extends Logging {
*/
def getCallSite: CallSite = {
val trace = Thread.currentThread.getStackTrace()
- .filterNot(_.getMethodName.contains("getStackTrace"))
+ .filterNot((ste:StackTraceElement) =>
+ // When running under some profilers, the current stack trace
might contain some bogus
+ // frames. This Try is intended to ensure that we don't crash in
these situations by
+ // ignoring any frames that we can't examine.
+ Try(ste.getMethodName.contains("getStackTrace")).getOrElse(true))
--- End diff --
So I was thinking that either `ste` or the result of `ste.getMethodName`
could be `null` when running under instrumentation. I'll rewrite to use checks
instead of `Try`, though.
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