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https://issues.apache.org/jira/browse/HADOOP-7440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13059666#comment-13059666
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Bharath Mundlapudi commented on HADOOP-7440:
--------------------------------------------
Hi Todd,
One minor comment: instead of returning null for this function, can we return
empty string array? This was the cleanup we have done in the past with couple
of JDK APIs.
The answer was never return null for the array return types. One reason is all
the client code needs to check for null condition everywhere. So we should
avoid returning null for array types. Do you agree?
Otherwise, patch looks good.
> HttpServer.getParameterValues throws NPE for missing parameters
> ---------------------------------------------------------------
>
> Key: HADOOP-7440
> URL: https://issues.apache.org/jira/browse/HADOOP-7440
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: hadoop-7440.txt
>
>
> If the requested parameter was not specified in the request, the raw
> request's getParameterValues function returns null. Thus, trying to access
> {{unquoteValue.length}} throws NPE.
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