JBoss not logging Tomcat exception stacktraces

[zbarrow]

I cannot configure JBoss to record/show any Tomcat exception stacktraces. I'm getting a 404, but I cannot track down what exception is causing this. I've modified log4j.xml with these additional entries:

 <category name="org.apache.catalina">
 <priority value="WARN"/>
 </category>

 <category name="org.jboss.web">
 <priority value="WARN"/>
 </category>

I've modified the server.xml file in default/deploy/jbossweb-tomcat55.sar with this entry (added the debug attribute)

 <Connector port="8080" address="${jboss.bind.address}"
 maxThreads="250" strategy="ms" maxHttpHeaderSize="8192"
 emptySessionPath="true"
 enableLookups="false" redirectPort="8443" acceptCount="100"
 connectionTimeout="20000" disableUploadTimeout="true"
 debug="3"/>

Don't know what else I should do to be able to see the tomcat exception stacktrace. When I deploy to a standalone Tomcat server, I can find the stacktrace in the localhost.log

[starksm64]

Tomcat will not log exceptions for file not found conditions, which is what a 404 error is. Its not an exception condition.