Tomcat 5.5 and Ubuntu

I am having problems using Tomcat on Ubuntu. I installed Tomcat 5.5 with Synaptic, and there are all these permission problems now. I am not sure but there is a Tomcat55 user, but it does not have a home directory. I am logged in as my user, and I want to deploy my webapp.

However, Tomcat fails to even run on Ubuntu, everything fails with ACL errors.
Caused by: java.security.AccessControlException: access denied (java.io.FilePermission /usr/share/tomcat5.5-webapps/servlets-examples/WEB-INF/classes/logging.properties read)

Did Synaptic not install it correctly? How do I fix it? I read all the install tutorials I could find, but none talk about this problem.

Should I try to change the owner of all the Tomcat 55 directories?

Thanks

Mark
[ September 03, 2008: Message edited by: Mark Spritzler ]

How are you starting Tomcat? I use:

Who is the owner of the installed tomcat??

If it is 'tomcat55' that is the installations owner - then this is the user to use - otherwise you need to start/stop tomcat as Joe, and I do.

Actually what it ends up being is that by default the security manager is on and there are properties for certain files defined in a properties file that restrict the normal webapps directory to nothing more than just read, which causes the failure while deploying the apps.

I turned off the security manager and now it works perfectly.

Mark