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From "Frank Steinmann (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LOG4J2-409) Specifying log4jConfiguration in web.xml fails on Windows when using ${user.home}
Date Mon, 23 Sep 2013 13:24:03 GMT
Frank Steinmann created LOG4J2-409:

             Summary: Specifying log4jConfiguration in web.xml fails on Windows when using
                 Key: LOG4J2-409
                 URL: https://issues.apache.org/jira/browse/LOG4J2-409
             Project: Log4j 2
          Issue Type: Bug
    Affects Versions: 2.0-beta8
         Environment: Windows 7, Apache Tomcat 7, Java 7
            Reporter: Frank Steinmann
            Priority: Minor

When specifying the context parameter log4jConfiguration in the web.xml of a web application
and using $\{user.home\} as part of the path, e.g.

the following exception is thrown on Windows systems:

java.net.URISyntaxException: Illegal character in authority at index 7: file://C:\Users\steinman/someDirectory/log4j2.xml
    at java.net.URI$Parser.fail(Unknown Source)
    at java.net.URI$Parser.parseAuthority(Unknown Source)
    at java.net.URI$Parser.parseHierarchical(Unknown Source)
    at java.net.URI$Parser.parse(Unknown Source)
    at java.net.URI.<init>(Unknown Source)
    at org.apache.logging.log4j.core.config.Configurator.initialize(Configurator.java:46)

It is because of the backslashes that are not allowed in URIs.

There is an example in the documentation using backslashes ([http://logging.apache.org/log4j/2.x/manual/webapp.html])
which will produce the same exception.

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