Setting up web authentication login for a webapp, but with an exception for 1 ip address?

I am currently securing my webapp with web authentication via this code in web.xml: Administration Interface /* DELETE GET POST PUT admin BASIC Restricted Acc

How to monitor a Tomcat Java server in case of problems?

What preparations have YOU made to ensure good monitoring of Java threads, etc. in case of problems, memory leaks, etc. I am looking to use Java Servlets for a website with a lot of visitors, but I wish to have made the right preparations in case some programming code causes major outages. -- Vi