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https://issues.apache.org/jira/browse/NIFI-8235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne resolved NIFI-8235.
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Fix Version/s: 1.14.0
Resolution: Fixed
> UnsupportedOperationException during PutAccumuloRecord validation
> -----------------------------------------------------------------
>
> Key: NIFI-8235
> URL: https://issues.apache.org/jira/browse/NIFI-8235
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4
> Reporter: Zsihovszki Krisztina
> Priority: Minor
> Fix For: 1.14.0
>
> Attachments: Screenshot 2021-02-17 at 14.03.14.png
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> In case "Column Family" and "Column Family Field" properties are not set
> properly on PutAccumuloRecord, a bulletin error is reported with this
> message: "Failed to perform validation due to
> java.lang.UnsupportedOperationException". No error is logged in nifi logs.
> Remote debugging revealed that the exception is thrown from
> PutAccumuloRecord.customValidate method.
> [https://github.com/apache/nifi/blob/f9ae3bb9c970cd8d6d1d9e10f07cab9bdb66baa9/nifi-nar-bundles/nifi-accumulo-bundle/nifi-accumulo-processors/src/main/java/org/apache/nifi/accumulo/processors/PutAccumuloRecord.java#L268]
> The method tries to add value to an immutable Collections.emptySet(), this is
> why the UnsupportedOperationException is thrown and the validation error is
> not reported properly.
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