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https://issues.apache.org/jira/browse/WW-4045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660492#comment-13660492
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Lukasz Lenart commented on WW-4045:
-----------------------------------
It must be something else, {{DefaultFileManger#loadFile}} can handle null - it
will return null in that case and the rest of the code also can handle null.
Could you prepare a working example, Maven based? Or instruct me how reproduce
that NPE?
> Null Pointer Exception on DefaultActionValidatorManager
> -------------------------------------------------------
>
> Key: WW-4045
> URL: https://issues.apache.org/jira/browse/WW-4045
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.3.7
> Reporter: Fritzi
> Fix For: 2.3.15
>
>
> With the change implemented on WW-3850, I think the missing piece is that if
> the validatorFileCache does not contain the fileName being modified, that the
> line is = fileManager.loadFile(fileUrl); is still being executed which will
> still result in a null pointer exception.
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