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https://issues.apache.org/jira/browse/LANG-428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12592086#action_12592086
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Simon Kitching commented on LANG-428:
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The existing behaviour is consistent with the other methods.
And as James notes, any change would break existing code.
So IMO, WONTFIX is the correct resolution. Sorry Artem but backwards
compatibility and consistency are very important in widely-used libs like
commons-lang.
I guess that a new method, isNumericValue(String) could be added to implement
the requested behaviour. But I'm not sure it is worth it.
> StringUtils.isNumeric
> ---------------------
>
> Key: LANG-428
> URL: https://issues.apache.org/jira/browse/LANG-428
> Project: Commons Lang
> Issue Type: Bug
> Affects Versions: 2.3
> Reporter: Artem Sakhnov
> Assignee: James Carman
> Priority: Minor
>
> StringUtils.isNumeric.
> if we put empty string as parameter we got true.
> StringUtils.isNumeric("") return true.
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