I saw this link on comp.lang.java.announce today, a wrapper around Tomcat that allows you to debug (I think) and do a little extra stuff. I’ll download it and play with it. It appears that a Tomcat 4 process runs inside Schrodinger. If you are able to actually step through the servlet/JSP code via Schrodinger, then it is definitely a keeper. For now, it is just a curiousity.