The "allappserver" flavor of the Introscope agent tarball is, as the name implies, all-encompassing to include configurations suitable for the many application servers that the agent supports. It is shipped with a directory structure and file content suitable for use on many different app servers. One side-effect of this is that the one extension needed for JMX metric functionality is not in the directory location that the Tomcat agent requires: WebAppSupport.jar. This jar is shipped in the "allappserver" tarball within the wily/common/ directory. However for JMX metrics from a Tomcat agent to report to Introscope, this jar must reside within the wily/core/ext/ directory instead.