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https://issues.apache.org/jira/browse/LANG-922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13796973#comment-13796973
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Benedikt Ritter commented on LANG-922:
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I think for booleans there are special cases like isOneTrue, isAnyTrue,
isOneFalse, isAnyFalse. We could implement the suggested method in ArrayUtils
but that would require us to do this for all primitives and for the gerenic
type T. IMHO we should definitely implement the old behavior. Don't know when
I'll find the time to do this :-) Maybe I can have a look on friday.
Regarding the name: isOneTrue is clear if you also have isAnyTrue, WDYT?
> 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
>
>
> 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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