We have trouble with Tomcat 5.5 which stops at night on our production servers (Linux CentOS 4.8) and we have no idea why it stops... There is no Tomcat\'s log in catalina.out o
Tomcat 7 has an option inside catalina to prevent the System.exit class call or something similar: http://ci.apache.org/projects/tomcat/tomcat7/docs/security-manager-howto.html .
Maybe there's a similar option for the 5.5 version. Try the documentation.
There are options to redirect the output to the same console that you use to start Tomcat. This information is redirected to logs when you execute on Unix based systems, on Windows, it remains with the console if not redirected.