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https://issues.apache.org/jira/browse/IO-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12606857#action_12606857
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Sebb commented on IO-171:
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So OSX is very similar to OpenVMS in that case-sensitivity is not defined by
the system type.
I.e. whatever IOCase SYSTEM is initialised to will be wrong in some cases.
Since the setting cannot be determined, I think IOCase.SYSTEM should be set to
null in such cases.
Rather than just let NPEs happen, the code should check for null and throw a
more suitable exception.
> IO assumes there are only two OSes: Windows and Unix
> ----------------------------------------------------
>
> Key: IO-171
> URL: https://issues.apache.org/jira/browse/IO-171
> Project: Commons IO
> Issue Type: Bug
> Reporter: Sebb
> Priority: Minor
>
> Just noticed that IO assumes systems are either:
> Windows-like:
> * File.separatorChar = \
> * Case-insensitive matching
> or
> Unix-like:
> * File.separatorChar = /
> * Case-sensitive matching
> It may well be true that there are only two different file sepator
> characters, but it is not true that all non-Windows systems use
> case-sensitive matching.
> For example, OpenVMS uses a file separator char of /, but originally only
> supported case-insensitive file names (always shown as uppercase).
> Current versions of OpenVMS support both upper and lower-case; the default is
> to use case-insenstive matching (and upper case names).
> Perhaps the IOCase.SYSTEM constant needs to have an "Unknown" or "Variable"
> setting for this; it would then be an error to use IOCase.SYSTEM to determine
> the case sensitivity.
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