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https://issues.apache.org/jira/browse/LANG-922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13801049#comment-13801049
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Henri Yandell commented on LANG-922:
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Agreed. LANG-921 fixing the bug is goodness :)
I don't see a need to maintain the old functionality. I'm in favour of dropping
the 3.2 fix version on this one.
We could add:
ArrayUtils.frequency;int
ArrayUtils.isFrequencyAtLeast;boolean
ArrayUtils.isFrequenctAtMost;boolean
I'm not convinced the latter methods are worth having, but I like the former
method.
> Add isOneTrue(booleans...) to BooleanUtils to preserve old behavior of
> BooleanUtils.xor(booleans...)
> ----------------------------------------------------------------------------------------------------
>
> Key: LANG-922
> URL: https://issues.apache.org/jira/browse/LANG-922
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.*
> Reporter: Benedikt Ritter
> Assignee: Benedikt Ritter
> Fix For: 3.2, Discussion
>
>
> The old implementation (prior to r1532476) of BooleanUtils.xor(boolean...)
> checked if the provided array contained exactly one boolean with value true.
> This was changed because it is not the correct behavior for an XOR operation.
> To preserve the behavior we should add BooleanUtils.isOneTrue(boolean...) and
> BooleanUtils.isOneTrue(Boolean...) (and possibly the equivalents for
> isOneFalse).
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