[LANG-710] StringIndexOutOfBoundsException when calling unescapeHtml4("&#03")

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0
• Fix Version/s: 3.0
• Component/s: lang.*
• Labels: StringEscapeUtils StringUtils

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)

• Assignee: Henri Yandell
• Reporter: Benjamin Valentin
• Created: 01/Jul/11 20:57
• Updated: 09/Jul/11 05:09
• Resolved: 09/Jul/11 05:09

Description

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)