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https://issues.apache.org/jira/browse/FLINK-35939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ferenc Csaky reassigned FLINK-35939:
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Assignee: Ferenc Csaky
> Do not set empty config values via ConfigUtils#encodeCollectionToConfig
> -----------------------------------------------------------------------
>
> Key: FLINK-35939
> URL: https://issues.apache.org/jira/browse/FLINK-35939
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 1.20.0
> Reporter: Ferenc Csaky
> Assignee: Ferenc Csaky
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.0.0
>
>
> The {{ConfigUtils#encodeCollectionToConfig}} function only skips to set a
> given {{ConfigOption}} value, if that value is null. If the passed collection
> is empty, it will set that empty collection.
> I think this behavior is less logical and can cause more undesired
> situations, when we only set a value if it is not empty AND not null.
> Furthermore, the method's
> [javadoc|https://github.com/apache/flink/blob/82b628d4730eef32b2f7a022e3b73cb18f950e6e/flink-core/src/main/java/org/apache/flink/configuration/ConfigUtils.java#L73]
> describes the logic I just mentioned above, which is in conflict with the
> actual implementation and tests, which sets an empty collection.
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