If my aging memory serves, that was the difference between Tomcat 5.0 and Tomcat 5.5. Tomcat 5.0 was limited to JDK 1.4, Tomcat 5.5 was JDK5.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.