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https://issues.apache.org/jira/browse/FLINK-8364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16350371#comment-16350371
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ASF GitHub Bot commented on FLINK-8364:
---------------------------------------

Github user StefanRRichter commented on the issue:

    https://github.com/apache/flink/pull/5356
  
    I still do not believe that this is a significant improvement, and may even 
increase confusion: Now you have two slightly different ways to do almost the 
same thing, in one case you need to take care of `null` and in the other case 
not. It is always nicer to keep the core user interfaces slim. I would prefer 
to not include this change, and remember that this should be fixed if we come 
to the point of a API-breaking release.


> Add iterator() to ListState which returns empty iterator when it has no value
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-8364
>                 URL: https://issues.apache.org/jira/browse/FLINK-8364
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.4.0
>            Reporter: Bowen Li
>            Assignee: Bowen Li
>            Priority: Major
>             Fix For: 1.5.0
>
>
> Add iterator() to ListState which returns empty iterator when it has no value



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