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https://issues.apache.org/jira/browse/FLINK-3485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15166425#comment-15166425
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sahitya pavurala commented on FLINK-3485:
-----------------------------------------

I attached the screenshot. For primitive types, the accumulator value be 
printed normally, for other types, it prints the hashcode value. May be this is 
because the toString() methods in these accumulator classes just call the 
Object toString() method.

> The SerializedListAccumulator value doest seem to be right
> ----------------------------------------------------------
>
>                 Key: FLINK-3485
>                 URL: https://issues.apache.org/jira/browse/FLINK-3485
>             Project: Flink
>          Issue Type: Bug
>          Components: Web Client
>            Reporter: sahitya pavurala
>            Priority: Minor
>         Attachments: screenshot-1.png
>
>
> When run flink examples, the accumulator value keeps changing, as it shows 
> the hashcode value.



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