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https://issues.apache.org/jira/browse/CLI-61?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12521679
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Brian Egge commented on CLI-61:
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I tested this patch out, and it makes sense. It's the same issue as CLI-145,
and the solution is better than the patch I created. I would apply this patch,
and then apply the test case from CLI-145.
> [cli] argument defaults prevent commandline usage.
> --------------------------------------------------
>
> Key: CLI-61
> URL: https://issues.apache.org/jira/browse/CLI-61
> Project: Commons CLI
> Issue Type: Bug
> Components: CLI-2.x
> Environment: Operating System: other
> Platform: Other
> Reporter: Andrew Shirley
> Fix For: 2.0
>
> Attachments: Bug39335Test.java, defaultsBugFix.patch
>
>
> I have found a bug in the following scenario:
> You have an option which can take a single argument which in turn has a
> default
> value. You supply a value on the command line which is intended to override
> this default however as the CommandLine already has a value for this Option,
> this second value is not allowed and the command line cannot be parsed.
> I have created a patch which adds a method to WritableCommandLine and its Impl
> which allows you to retrieve the undefaulted values for an Option. I have then
> changed ArgumentImpl to use this method to determine the argument count
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