GitHub user aljoscha opened a pull request:
https://github.com/apache/flink/pull/3535
[FLINK-5713] Protect against NPE in WindowOperator window cleanup
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/aljoscha/flink jira-5713-window-gc-protection
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3535.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 #3535
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commit e126758cecbf7ba9a9e2d6c66f004b25af3f1097
Author: Aljoscha Krettek <aljoscha.kret...@gmail.com>
Date: 2017-02-06T10:10:14Z
[FLINK-5713] Protect against NPE in WindowOperator window cleanup
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