This is a new install. Successfully configured, started, and logged into the server
Applied the latest cumulative maintenance. Can no longer log in. Got an error page that says the software experience a problem and the session has closed.
Release : 12.1
Component : CA OUTPUT MANAGEMENT WEB VIEWER FOR Linux
The initial install used internal configuration instead of external.
For internal configuration, the /config, /database (when using internal Derby as the database), and other files are placed below the <Tomcat Path>/webapps/CAOMWebViewer12.
That means that when applying maintenance, all the files under the </Tomcat Path> are going to be overwritten, including the database files that were established with the original install, setup, and testing.
Use System Level External Configuration. In any case, now when applying new builds on top of that install that works, the configuration and database changes made before updating will be preserved.