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https://issues.apache.org/jira/browse/TEXT-88?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047086#comment-16047086
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Sebb commented on TEXT-88:
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To me a second param of null means "I have not provided any delimiters".
So does omitting the second parameter.
Therefore they should have the same behaviour.
Since the commonest delimiter is whitespace, it's convenient to have that as a
default if no delimiter array is provided.
This is also what the LANG original states in the Javadoc.
> WordUtils.capitalizeFully behaves in a counterintuitive manner with empty
> delimiter array.
> ------------------------------------------------------------------------------------------
>
> Key: TEXT-88
> URL: https://issues.apache.org/jira/browse/TEXT-88
> Project: Commons Text
> Issue Type: Bug
> Reporter: Rob Tompkins
>
> As discussed in TEXT-85, it seems that
> {code:java}
> WordUtils.capitalizeFully("i am fine", new char[]{}) // --> i am fine
> {code}
> Both Sebb and Arun think that this is odd and that the letter "i" should have
> been capitalized resulting in the output {{I am fine}}
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