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https://issues.apache.org/jira/browse/NIFI-6017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16767231#comment-16767231
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Mark Payne commented on NIFI-6017:
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Thanks [~SunSatION] that worked perfectly! Have been able to verify behavior
and reviewed code. +1 merged to master. Thanks again!
> ArrayIndexOutOfBounds Load Balancer CorrelationAttributePartitioner
> -------------------------------------------------------------------
>
> Key: NIFI-6017
> URL: https://issues.apache.org/jira/browse/NIFI-6017
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.8.0
> Reporter: Dorian Bugeja
> Assignee: Mark Payne
> Priority: Critical
> Fix For: 1.9.0
>
> Attachments:
> 0001-NIFI-6017-ArrayIndexOutOfBounds-Load-Balancer-Correl.patch
>
>
> When trying to perform load balancing on queue using 'partition by
> attribute', the use of the hashCode() function can return a negative value
> which in turns, the '%' operation might return a negative value (which is
> used as index) which throws an ArrayIndexOutOfBounds exception.
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