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https://issues.apache.org/jira/browse/KAFKA-7905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16763155#comment-16763155
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Bill Bejeck commented on KAFKA-7905:
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Hi [~agrrwal],
I'm still looking into it. Can you share your code?
Thanks,
Bill
> KTable Reduce Allow Null value to be pass in Subtractor
> -------------------------------------------------------
>
> Key: KAFKA-7905
> URL: https://issues.apache.org/jira/browse/KAFKA-7905
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: HARSHIT AGARWAL
> Priority: Major
> Attachments: KTableReduceExceptionTrace.txt
>
>
> KTable Reduce Allow Null value to be pass in Subtractor.
> .reduce((aggValue, newValue) -> addCounts(aggValue, newValue),
> (aggValue, oldValue) -> subtractCounts(*{color:#FF0000}aggValue{color}*,
> oldValue))
> *{color:#FF0000}aggValue{color}* passed by *{color:#FF0000}{color}*
> org.apache.kafka.streams.kstream.internals.KTableReduce.java is
> {color:#FF0000}*null*{color}.
>
> Please find attached Exception Trace.
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