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https://issues.apache.org/jira/browse/WW-4045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633322#comment-13633322
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Fritzi commented on WW-4045:
----------------------------
I have that Lukasz:
if ((checkFile && fileUrl != null &&
fileManager.fileNeedsReloading(fileUrl.toString())) ||
!validatorFileCache.containsKey(fileName)) {
The thing is, that the fileName is not in the validatorFileCache so it is going
in the if block anyway. Shouldn't the code be more like this:
if (fileUrl != null && (checkFile && &&
fileManager.fileNeedsReloading(fileUrl.toString())) ||
!validatorFileCache.containsKey(fileName))
So that you are guaranteed to have the fileUrl before going in the if block, if
it is null, just add it to the validatorFileCache.
> 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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