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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2012/07/14 02:50:36 UTC

[jira] [Commented] (LANG-813) StringUtils.equalsIgnoreCase doesn't check string reference equality

    [ https://issues.apache.org/jira/browse/LANG-813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414223#comment-13414223 ] 

Sebb commented on LANG-813:
---------------------------

Another optimisation would be to check that the lengths are the same.
The code already calculates both lengths, so this would not add any overhead and would be more efficient for sequences that differ only in length.
                
> StringUtils.equalsIgnoreCase doesn't check string reference equality
> --------------------------------------------------------------------
>
>                 Key: LANG-813
>                 URL: https://issues.apache.org/jira/browse/LANG-813
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.*
>    Affects Versions: 3.1
>            Reporter: Paul Nepywoda
>
> This looks like a regression from .lang versions prior to 3. If the 2 given CharSequences are strings (and both not null) you should check reference equality before delegating to regionMatches()

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