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https://issues.apache.org/jira/browse/NIFI-7055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe Witt updated NIFI-7055:
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Fix Version/s: 1.11.4
> createListValidator returns valid for empty list with "," input
> ---------------------------------------------------------------
>
> Key: NIFI-7055
> URL: https://issues.apache.org/jira/browse/NIFI-7055
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Otto Fowler
> Assignee: Otto Fowler
> Priority: Major
> Fix For: 1.12.0, 1.11.4
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> from Slack:
> <[email protected]>
> "I'm looking at the createListValidator, and to my surprise passing in a list
> of (essentially) two empty elements "," validates, while a totally empty
> string "" does not. Apparently due to some underlying behavior of
> String.split."
> The string "," does return a String[0] from split. This should fail
> validation as if here were no elements as null, "", " " do possibly.
> But that kind of goes against or doesn't consider the ignore empty entries.
> I think the difference is whether or not you consider "," to be a list of two
> empty elements or an empty list.
> The current implementation with String.spilt() will produce an empty list.
> Is that correct?
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