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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2015/08/10 23:11:46 UTC

[jira] [Created] (LANG-1162) StringUtils#equals fails with Index OOBE on non-Strings with identical leading prefix

Sebb created LANG-1162:
--------------------------

             Summary: StringUtils#equals fails with Index OOBE on non-Strings with identical leading prefix
                 Key: LANG-1162
                 URL: https://issues.apache.org/jira/browse/LANG-1162
             Project: Commons Lang
          Issue Type: Bug
    Affects Versions: 3.4
            Reporter: Sebb
            Assignee: Sebb


>From the Commons User mailing list:

{quote}
StringUtils.equals(cs1,cs2) delegates to CharSequence.regionMatches(...) in a way that causes IndexOutOfBounds when either of cs1/cs2 isn't a String.

Specifically, comparing "foo" and "foobar" for non-String CharSequences bombs due to CharSequenceUtils.regionMatches(cs1, false, 0, cs2, 0, Math.max(cs1.length(), cs2.length())) because regionMatches doesn't check for input exhaustion.
{quote}




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