[GitHub] spark pull request #15560: [SPARKR] fix warnings

[asfgit]

Github user asfgit closed the pull request at:

https://github.com/apache/spark/pull/15560


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[GitHub] spark pull request #15560: [SPARKR] fix warnings

[felixcheung]

GitHub user felixcheung opened a pull request:

https://github.com/apache/spark/pull/15560

[SPARKR] fix warnings

## What changes were proposed in this pull request?

Fix for a bunch of test warnings that were added recently.
We need to investigate why warnings are not turning into errors.

## How was this patch tested?

unit tests


You can merge this pull request into a Git repository by running:

$ git pull https://github.com/felixcheung/spark rwarnings

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/spark/pull/15560.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #15560


commit b25b277d8ebabb6aabd3c1c80bc9140c8670407f
Author: Felix Cheung 
Date:   2016-10-20T05:09:18Z

fix warnings




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