The Subject almost says it all: Will webMathematica work with Tomcat 7?
The rest is: on OS X 10.8 (Mountain Lion), I'm running Java 7 rather than the Apple-provided Java 6 (because Apple prohibits running any Java plug-in for its Safari browser except one directly obtained from Oracle, and all you can get from Oracle now , apparently, is Java 7). And I've been trying to get the MacPorts port tomcat6 of Tomcat 6 to work, but unsuccessfully (with a number of problems).
--- Murray Eisenberg firstname.lastname@example.org Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2838 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305