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Date: Tue, 20 Nov 2012 20:48:57 +0000 (UTC)
From: "Gary Gregory (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
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Subject: [jira] [Resolved] (LANG-857) StringIndexOutOfBoundsException in
 CharSequenceTranslator
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     [ https://issues.apache.org/jira/browse/LANG-857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Gregory resolved LANG-857.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 3.2

Thank you for the patch. I added a couple more tests. We could use more.

Do you see any issues in other areas?

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commit -m "[LANG-857] StringIndexOutOfBoundsException in CharSequenceTranslator." C:/svn/org/apache/commons/trunks-proper/lang/src/test/java/org/apache/commons/lang3/StringUtilsTest.java C:/svn/org/apache/commons/trunks-proper/lang/src/changes/changes.xml C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/CharSequenceTranslator.java
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/changes/changes.xml
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/main/java/org/apache/commons/lang3/text/translate/CharSequenceTranslator.java
    Sending        C:/svn/org/apache/commons/trunks-proper/lang/src/test/java/org/apache/commons/lang3/StringUtilsTest.java
    Transmitting file data ...
    Committed revision 1411850.
{noformat}
                
> StringIndexOutOfBoundsException in CharSequenceTranslator
> ---------------------------------------------------------
>
>                 Key: LANG-857
>                 URL: https://issues.apache.org/jira/browse/LANG-857
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.text.translate.*
>    Affects Versions: 3.x
>            Reporter: Kazuki Hamasaki
>            Priority: Minor
>              Labels: patch
>             Fix For: 3.2
>
>         Attachments: CharSequenceTranslator_translate.patch
>
>
> I found that there is bad surrogate pair handling in the CharSequenceTranslator
> This is a simple test case for this problem.
> \uD83D\uDE30 is a surrogate pair.
> {code:java}
> @Test
> public void testEscapeSurrogatePairs() throws Exception {
>     assertEquals("\uD83D\uDE30", StringEscapeUtils.escapeCsv("\uD83D\uDE30"));
> }
> {code}
> You'll get the exception as shown below.
> {code}
> java.lang.StringIndexOutOfBoundsException: String index out of range: 2
> 	at java.lang.String.charAt(String.java:658)
> 	at java.lang.Character.codePointAt(Character.java:4668)
> 	at org.apache.commons.lang3.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:95)
> 	at org.apache.commons.lang3.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:59)
> 	at org.apache.commons.lang3.StringEscapeUtils.escapeCsv(StringEscapeUtils.java:556)
> {code}
> Patch attached, the method affected:
> # public final void translate(CharSequence input, Writer out) throws IOException

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