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https://issues.apache.org/jira/browse/ARROW-6871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16950711#comment-16950711
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Liya Fan commented on ARROW-6871:
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+1 for adding more UT to test corner cases.
Please note that some of the operations are performance critical, so please pay
attention to the performance impacts.
> [Java] Enhance TransferPair related parameters check and tests
> --------------------------------------------------------------
>
> Key: ARROW-6871
> URL: https://issues.apache.org/jira/browse/ARROW-6871
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Major
>
> {{TransferPair}} related param checks in different classes have potential
> problems:
> i. {{copyValueSafe}} do not check from index, if from > valueCount, no error
> is shown.
> ii. {{splitAndTansfer}} has no indices check in classes like {{VarcharVector}}
> iii. {{splitAndTranser}} indices check in classes like UnionVector is not
> correct (Preconditions.checkArgument(startIndex + length <= valueCount)),
> should check params separately.
> iv. some assert usages should be replaced with {{Preconditions}}.
> v. should add more UT to cover corner cases.
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