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https://issues.apache.org/jira/browse/SPARK-12607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146006#comment-15146006
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Jon Maurer commented on SPARK-12607:
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Does this issue still happen on the latest master after SPARK-11518?
> spark-class.cmd produced null command strings for "exec"
> --------------------------------------------------------
>
> Key: SPARK-12607
> URL: https://issues.apache.org/jira/browse/SPARK-12607
> Project: Spark
> Issue Type: Bug
> Components: Spark Submit, Windows
> Affects Versions: 1.4.0, 1.4.1, 1.5.2
> Environment: MSYS64 on Windows 7 64 bit
> Reporter: SM Wang
>
> When using the run-example script in 1.4.0 to run the SparkPi example, I
> found that it did not print any text to the terminal (e.g., stdout, stderr).
> After further investigation I found the while loop for producing the exec
> command from the launcher class produced a null command array.
> This discrepancy was observed on 1.5.2 and 1.4.1. The 1.3.1's behavior seems
> to be correct.
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