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https://issues.apache.org/jira/browse/LANG-922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13795523#comment-13795523
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Benedikt Ritter commented on LANG-922:
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I've implement isOneTrue for primitives and wrappers in
[r1532491|http://svn.apache.org/r1532491].
> 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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