"Tomcat" isn't eating a lot of CPU. Tomcat is specifically designed NOT to eat a lot of CPU. If you deploy a Tomcat server with no apps installed and it runs heavy CPU, there's something wrong. Generally involving Virtual Memory thrashing (which is an OS/hardware issue, not Tomcat).
Applications and services installed under Tomcat, however, they're another story...
Customer surveys are for companies who didn't pay proper attention to begin with.