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https://issues.apache.org/jira/browse/IO-611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601335#comment-17601335
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Gary D. Gregory commented on IO-611:
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Hi [~urvanov]
You must use GitHub to create a pull request:
https://github.com/apache/commons-io
> FilenameUtils.normalize does not sanitize multiple slashes after prefix
> -----------------------------------------------------------------------
>
> Key: IO-611
> URL: https://issues.apache.org/jira/browse/IO-611
> Project: Commons IO
> Issue Type: Bug
> Affects Versions: 2.6
> Reporter: Urvanov
> Priority: Major
>
> FilenameUtils.#normalize states in javadoc that //foo//./bar becomes /foo/bar
> {code:java}
> System.out.println(FilenameUtils.normalize("//foo//./bar"));
> System.out.println(FilenameUtils.normalize("\\\\foo\\\\.\\bar"));
> {code}
> Result:
> {code:java}
> //foo//bar
> //foo//bar
> {code}
> So, javadoc says, that it should be /foo/bar. I think, that //foo is prefix,
> so it should be //foo/bar. But in real life it becomes the third way
> (//foo//bar).
>
> I think we should fix javadoc and the code. The correct result should be
> //foo/bar
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