Apache + Tomcat = 100% CPU

After much surfing the net I finaly found the infoemation needed to
install and configure Apache to work with Tomcat. I recommend this site
to others:

http://apacheguide.org/

But there is one problem left. When I integrated tomcat with Apache my
CPU usage go crazy. Up to 100% and stays there untill i restart the
Apache server. Is there some configuration that I have done wrong or
forgot to do?

According to Tomcat FAQ it can be the result from a memory leak (?) -
but they dont give a solution to it. Dose anyone know what to do?