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From "Benjamin Valentin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LANG-710) StringIndexOutOfBoundsException when calling unescapeHtml4("&#03")
Date Fri, 01 Jul 2011 21:09:28 GMT

    [ https://issues.apache.org/jira/browse/LANG-710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13058800#comment-13058800
] 

Benjamin Valentin commented on LANG-710:
----------------------------------------

any & followed by an invalid escape sequence or just a solitary "&" will have the
same effect.

> StringIndexOutOfBoundsException when calling unescapeHtml4("&#03")
> ------------------------------------------------------------------
>
>                 Key: LANG-710
>                 URL: https://issues.apache.org/jira/browse/LANG-710
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.*
>    Affects Versions: 3.0
>         Environment: java version "1.6.0_24"
> Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
> Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)
>            Reporter: Benjamin Valentin
>            Priority: Minor
>              Labels: StringEscapeUtils, StringUtils
>
> When calling unescapeHtml4() on the String "&#03" (or any String that contains these
characters) an Exception is thrown:
> Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out
of range: 4
> 	at java.lang.String.charAt(String.java:686)
> 	at org.apache.commons.lang3.text.translate.NumericEntityUnescaper.translate(NumericEntityUnescaper.java:49)
> 	at org.apache.commons.lang3.text.translate.AggregateTranslator.translate(AggregateTranslator.java:53)
> 	at org.apache.commons.lang3.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:88)
> 	at org.apache.commons.lang3.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:60)
> 	at org.apache.commons.lang3.StringEscapeUtils.unescapeHtml4(StringEscapeUtils.java:351)

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