I now have a completely dead install again. Tomcat is down as long as the web app exists. I'll just have to start from scratch. Even with the embedded database this is one of the most fragile systems I've dealt with.
I maybe missed it mentioned in the thread but if you have installed 8.0 you will need a license.bin file. The 8 install mentions this. With out this the web app fails and tomcat stops. Plus a path to the extensions in the java config. Check the install. I will try to find it but for now take another look through the install. Hope this helps