JBoss AS 6 Logging Patterns

Question

In the deployment directory of JBoss 6, there is jboss-logging.xml:

The FILE appender has following pattern:

<pattern-formatter pattern="%d %-5p [%c] (%t:%x) %s%E%n"/>

This outputs something as follows:

2010-08-02 17:41:43,845 INFO  [STDOUT] (http-127.0.0.1-8080-1:)   2010-08-02 17:41:43,844  INFO [http-127.0.0.1-8080-1] (XyzPageController.java:<init>:58) - New abc instantiated and empty xyz constructed.

I'm wondering what the %s%E tokens stand for... Is this something JBoss 6 specific?

Answer 1

from http://i0.grepcode.com/file/repo1.maven.org/maven2/org.jboss.logmanager/jboss-logmanager/1.2.0.GA/org/jboss/logmanager/formatters/FormatStringParser.java

The %E is the stack trace and %s is the message.

Answer 2

The whole jboss-logging.xml file is JBoss-specific - from JBossAS 6, they're using a proprietary logging configuration, rather than using jboss-log4j.xml like they did in previous versions.

I can't find any documentation as to what it means, though. This stuff is still in beta, so the docs may not exist yet.