Hi Nick,

> The solution is to configure JBoss to disable parent-first class loading. The 
> method by which you do this has changed from one JBoss version to another.

Thanks a lot! From my (somewhat limited) understanding of the problem, this 
sounds exactly what I need to do, so this will be the next step that I'll 
attempt (might take some time, though).

With kind regards,
Piers


Am 23.05.2013 um 01:42 schrieb Nick Williams:

> Piers,
> 
> IIRC, JBoss 6, by default, prefers the parent class loaders over child class 
> loaders. This means that, when a class path resource is referenced, it is 
> first searched for in the server class loaders and _then_ in the web 
> application class loader. This is similar to the default behavior in 
> WebSphere and WebLogic, and counter to the default behavior in GlassFish and 
> Tomcat (and even earlier versions of JBoss), which search for a resources 
> _first_ in the web application class loader and _then_ in the server class 
> loaders (IMO, the correct behavior).
> 
> The consequence of this is that the log4j.properties/log4j.xml file shipped 
> with JBoss override the log4j.xml file shipped with your application.
> 
> The solution is to configure JBoss to disable parent-first class loading. The 
> method by which you do this has changed from one JBoss version to another. 
> Used to be a setting in /WEB-INF/jboss-web.xml, but it looks like it may have 
> been moved. You should consult the JBoss documentation for instructions on 
> disabling parent-first class loading. Once you do this, for your application 
> only, Log4j will use your configuration files (this only works if the Log4j 
> JAR files are also included in your /WEB-INF/lib directory).
> 
> Nick
> 
> On May 22, 2013, at 5:17 PM, Remko Popma wrote:
> 
>> Piers,
>> 
>> To be honest, this sounds more like a question that should be directed to 
>> the JBoss people...
>> 
>> Kind regards,
>> Remko
>> 
>> Sent from my iPhone
>> 
>> On 2013/05/20, at 22:45, Piers Uso Walter <piers.wal...@ilink.de> wrote:
>> 
>>> Hi,
>>> 
>>> I am migrating an application from JBoss 4 to JBoss 6 and stumble over the 
>>> fact that log4j does not seem to be supported by JBoss 6 out of the box any 
>>> more.
>>> 
>>> I've researched this quite extensively on the web, but have only found 
>>> questions from other people, no answers. I hope someone in the log4j 
>>> community has successfully used log4j (1.2) with JBoss 6 and might be able 
>>> to help.
>>> 
>>> 
>>> Our previous setup with a log4j.xml configuration file in 
>>> server/default/conf/ no longer works. That configuration files does not 
>>> seem to be detected and used by JBoss 6.
>>> Basic logging (as configured in server/default/deploy/jboss-logging.xml) 
>>> works, but I have not been successful in configuring log4j appenders in 
>>> that file. From what I understand, this file does not really configure 
>>> log4j, as JBoss 6 uses a new logging mechanism.
>>> 
>>> For example, I've modified jboss-logging.xml to use a log4j console 
>>> appender and a log4j file appender instead of the standard appenders (see 
>>> attached file). This did not work. The log file 
>>> ${jboss.server.log.dir}/log4j.log is not created, the console log stays at 
>>> level INFO (instead of DEBUG).
>>> 
>>> What would I have to do in order to get JBoss 6 to use log4j for my 
>>> applications?
>>> One requirement we have is to store the log4j configuration in a central 
>>> file and not within the application packages (because for debugging 
>>> purposes we ask our customers to modify the configuration).
>>> 
>>> I'm using JBoss 6.1 final, in case that makes a difference.
>>> 
>>> Thanks a lot
>>> Piers
>>> 
>>> -- 
>>> Piers Uso Walter <piers.wal...@ilink.de>
>>> ilink Kommunikationssysteme GmbH
>>> 
>>> 
>>> <jboss-logging.xml>
>>> 
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