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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LANG-1406) StringIndexOutOfBoundsException in StringUtils.replaceIgnoreCase
Date Mon, 13 Aug 2018 15:44:00 GMT

    [ https://issues.apache.org/jira/browse/LANG-1406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16578478#comment-16578478
] 

ASF GitHub Bot commented on LANG-1406:
--------------------------------------

Github user HiuKwok commented on a diff in the pull request:

    https://github.com/apache/commons-lang/pull/340#discussion_r209659530
  
    --- Diff: src/main/java/org/apache/commons/lang3/StringUtils.java ---
    @@ -5596,8 +5596,8 @@ private static String replace(final String text, String searchString,
final Stri
              }
              String searchText = text;
              if (ignoreCase) {
    -             searchText = text.toLowerCase();
    -             searchString = searchString.toLowerCase();
    +             searchText = text.toUpperCase();
    +             searchString = searchString.toUpperCase();
    --- End diff --
    
    @kinow May be try to store a original text.length before performance any upper || lower
case operation and make use of it?
    
    haha, it's just a thought. Would try out later 


> StringIndexOutOfBoundsException in StringUtils.replaceIgnoreCase
> ----------------------------------------------------------------
>
>                 Key: LANG-1406
>                 URL: https://issues.apache.org/jira/browse/LANG-1406
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.*
>            Reporter: Michael Ryan
>            Priority: Major
>
> STEPS TO REPRODUCE:
> {code}
> StringUtils.replaceIgnoreCase("\u0130x", "x", "")
> {code}
> EXPECTED: "\u0130" is returned.
> ACTUAL: StringIndexOutOfBoundsException
> This happens because the replace method is assuming that text.length() == text.toLowerCase().length(),
which is not true for certain characters.



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