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https://issues.apache.org/jira/browse/CALCITE-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16783438#comment-16783438
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Stamatis Zampetakis commented on CALCITE-2889:
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Thanks for catching this [~amaliujia]! Can you change the summary of this issue
to better illustrate when does IndexOutOfBoundsException appear. For instance
"IndexOutOfBoundsException in EnumUtils#fromInternal when handling methods with
varargs" or something similar.
> EnumUtils's fromInternal cannot handle function with variable length argument
> ------------------------------------------------------------------------------
>
> 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
> Time Spent: 10m
> 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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