Re: [xwiki-devs] [Proposal] Switch from Commons Logging/Log4j to SLF4J/Logback

There's one issue with slf4j to be aware of. As you probably know slf4j does not allow several versions of slf4j (APIs and implementations) to be located in the classpath. This applies for e.g. JBoss 5.1. It internally uses older version of slf4j. By default in JBoss 5.1 applications do not have isolated classpath. This results in JBoss slf4j being loaded first and potentially conflicting with your app's slf4j may you try to deploy (especially for newer versions of slf4j). This may not be a critical issue (in our case things worked, but we've isolated our web application's classpath and yet the warning got printed), but worth double-checking. Check this post for the details of the issue http://community.jboss.org/thread/157454 Regards, Roman -- View this message in context: http://xwiki.475771.n2.nabble.com/Proposal-Switch-from-Commons-Logging-Log4… Sent from the XWiki- Dev mailing list archive at Nabble.com.