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https://issues.apache.org/jira/browse/SPARK-11025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14950145#comment-14950145
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Sean Owen commented on SPARK-11025:
-----------------------------------
What behavior do you suggest - ignoring it? Clearly {{-D}} by itself is a
mistake though. It should cause an error that you notice.
> Exception key can't be empty at getSystemProperties function in utils
> ----------------------------------------------------------------------
>
> Key: SPARK-11025
> URL: https://issues.apache.org/jira/browse/SPARK-11025
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.3.0, 1.3.1, 1.4.0, 1.4.1, 1.5.1
> Reporter: Stavros Kontopoulos
> Priority: Trivial
> Labels: easyfix, easytest
>
> At file core/src/main/scala/org/apache/spark/util/Utils.scala
> getSystemProperties function fails when someone passes -D to the jvm and as a
> result the key passed is "" (empty).
> Exception thrown: java.lang.IllegalArgumentException: key can't be empty
> Empty keys should be ignored at that level as in previous versions.
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