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https://issues.apache.org/jira/browse/ARROW-8305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ji Liu updated ARROW-8305:
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Description: In ExtensionTypeVector seems not check nullability for
underlyingVector, and it will throw exception when it is null in some api like
accpet/reset/getField etc. (was: We have introduced visitor API for comparing
vector/range/type in ARROW-6211, but it dose not support {{ExtensionType}} yet.)
> [Java] ExtensionTypeVector should make sure underlyingVector not null
> ---------------------------------------------------------------------
>
> Key: ARROW-8305
> URL: https://issues.apache.org/jira/browse/ARROW-8305
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Java
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Major
>
> In ExtensionTypeVector seems not check nullability for underlyingVector, and
> it will throw exception when it is null in some api like
> accpet/reset/getField etc.
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