So I've run into a weird issue at work, and I can't find anything relevant round the interwebs.

We've got a set of tomcat instances, 1 dev and 2 prod servers. These machines were setup 4+ years ago by someone else, who's not available for questions at this time (no longer works for the company). Since starting to work on them, I've noticed that no JSP's run. It looks like the compiler is never generating the .java file based on the jsp. Anyone have any ideas?