[jira] [Commented] (CALCITE-2889) IndexOutOfBoundsException in EnumUtils#fromInternal when handling methods with varargs

["Stamatis Zampetakis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16843142#comment-16843142 ] 

Stamatis Zampetakis commented on CALCITE-2889:
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Hey [~amaliujia], sorry for not answering earlier. I looked again in the PR. I tried reproducing the problem myself through a test in UdfTest but I failed since there seem to be issues with the validator (and possibly not only in one place). Do you use the same validator in Beam?  

> IndexOutOfBoundsException in EnumUtils#fromInternal when handling methods with varargs
> --------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2889
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2889
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Rui Wang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.20.0
>
>          Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/adapter/enumerable/EnumUtils.java#L210
> If "targetTypes" is from "method.getParameterTypes()" and if method's signature is "func(stirng ... args)", then "targetTypes" will contain one type "String[].class", but "expressions" could contain one than one element, so it throws IndexOutOfBoundsException.



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