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https://issues.apache.org/jira/browse/SPARK-2486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061625#comment-14061625
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William Benton commented on SPARK-2486:
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A (trivial but functional) workaround is here:
https://github.com/apache/spark/pull/1413
> Utils.getCallSite can crash under JVMTI profilers
> -------------------------------------------------
>
> Key: SPARK-2486
> URL: https://issues.apache.org/jira/browse/SPARK-2486
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.0.1
> Environment: running under profilers (observed on OS X under YourKit
> with CPU profiling and/or object allocation site tracking enabled)
> Reporter: William Benton
> Priority: Minor
>
> When running under an instrumenting profiler, Utils.getCallSite sometimes
> crashes with an NPE while examining stack trace elements.
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