[jboss-as7-dev] jboss-as-7.1.0.Final Stack Trace not being logged from SLF4J

I'm not sure if this is the right list for this question, so please redirect me if I chose this one in error. I'm having very little sucess getting JBoss to correctly log the stack trace of my error messages. Our application uses SLF4J , which is in our WAR file (slf4j-api-1.7.5.jar). This prints stack trace: LOGGER.error("Something blew up", e); This does not print stack trace: final String verb = "blew"; LOGGER.error("Something {} up", verb, e); What is going on? How do I get JBoss to work correctly with SLF4J? Thanks, Eric Stein standalone.xml: <subsystem xmlns="urn:jboss:domain:logging:1.1"> <console-handler name="CONSOLE"> <level name="DEBUG"/> <formatter> <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/> </formatter> </console-handler> <periodic-rotating-file-handler name="FILE"> <formatter> <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/> </formatter> <file relative-to="jboss.server.log.dir" path="server.log"/> <suffix value=".yyyy-MM-dd"/> <append value="true"/> </periodic-rotating-file-handler> <logger category="com.arjuna"> <level name="WARN"/> </logger> <logger category="org.apache.tomcat.util.modeler"> <level name="WARN"/> </logger> <logger category="sun.rmi"> <level name="WARN"/> </logger> <logger category="jacorb"> <level name="WARN"/> </logger> <logger category="jacorb.config"> <level name="WARN"/> </logger> <logger category="org.jboss.resteasy"> <level name="ALL"/> </logger> <logger category="com.mycompany"> <level name="ALL"/> </logger> <root-logger> <level name="WARN"/> <handlers> <handler name="CONSOLE"/> <handler name="FILE"/> </handlers> </root-logger> </subsystem>