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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LANG-885) Apache commons StringEscapeUtils.unescapeJava(“\\”) returns “”
Date Tue, 16 Apr 2013 11:05:17 GMT

     [ https://issues.apache.org/jira/browse/LANG-885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb resolved LANG-885.
-----------------------

    Resolution: Not A Problem

This is really a question for the user list; JIRA is not a user forum.

None of the unescape methods are documented to throw Exceptions for invalid escape sequences.
                
> Apache commons StringEscapeUtils.unescapeJava(“\\”) returns “”
> --------------------------------------------------------------
>
>                 Key: LANG-885
>                 URL: https://issues.apache.org/jira/browse/LANG-885
>             Project: Commons Lang
>          Issue Type: Bug
>    Affects Versions: 3.1
>         Environment: Linux 3.2.0-40-generic-pae #64-Ubuntu SMP i686 athlon i386 GNU/Linux
>            Reporter: Menelaos Perdikeas
>            Priority: Minor
>
> The following code:
> {code:title=foo.java|borderStyle=solid}
> final String INVALID_ESCAPE="\\";
> System.out.println(String.format("'%s' -> '%s'", INVALID_ESCAPE, 
>     StringEscapeUtils.unescapeJava(INVALID_ESCAPE)));
> {code}
> ... produces:
> '\' -> ''
> on the console. Since '\' is not a valid escape I would expect an Exception at runtime.
Am I missing anything?

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