default servlet handling welcome page prior to filter runnin

[dr3342]

I'm running JBoss 4.2.2 and have a filter in the ROOT.war WEB-INF/web.xml of the jboss-web.deployer. For some reason though when I request a page like http://host.domain.name/, the default servlet tacks on the index.html (which is a valid file and is one of the entries in the welcome file list of the web.xml) prior to my filter running. My filter is basically like the following:

<filter>
 <filter-name>RewriteFilter</filter-name>
 <filter-class>my.class.RewriteFilter</filter-class>
</filter>

<filter-mapping>
 <filter-name>RewriteFilter</filter-name>
 <url-pattern>/*</url-pattern>
</filter-mapping>

The default servlet portion of the jboss-web.deployer/conf/web.xml is like the following:

<servlet>
 <servlet-name>default</servlet-name>
 <servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
 <init-param>
 <param-name>debug</param-name>
 <param-value>0</param-value>
 </init-param>
 <init-param>
 <param-name>listings</param-name>
 <param-value>false</param-value>
 </init-param>
 <load-on-startup>1</load-on-startup>
</servlet>

Is there something I'm missing? Or will the default servlet always process before my filter?

Thanks,
Dave