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https://issues.apache.org/jira/browse/ARROW-1779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Jin resolved ARROW-1779.
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Resolution: Fixed
> [Java] Integration test breaks without zeroing out validity vectors
> -------------------------------------------------------------------
>
> Key: ARROW-1779
> URL: https://issues.apache.org/jira/browse/ARROW-1779
> Project: Apache Arrow
> Issue Type: Sub-task
> Reporter: Li Jin
> Fix For: 0.8.0
>
> Attachments: nested.bad, nested.good, nested.json
>
>
> This is discovered in https://github.com/apache/arrow/pull/1290
> I found one the integration test (nested) failed without zeroing out validity
> vectors before loading the array from json.
> I have created three files to reproduce this:
> (1) nested.json
> (2) nested.good (zeroing out validity vector before reading)
> (3) nested.bad (not zeroing out validity vector before reading)
> (1) / (2) and (1) / (3) both pass Java integration test, however (1) / (3)
> fails C++ test - one of the validity vector in (3) doesn't seem to be read
> correctly.
> I am not sure what the issue is because I cannot reproduce an error in Java.
> I am hoping maybe some one more familiar with C++ could take a look and give
> some insights what's the wrong with (3).
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