One or more Filters failed to start. how to find container log?

[chichicuervo]

11-Mar-2020 06:00:36.958 SEVERE [main] org.apache.catalina.core.StandardContext.startInternal One or more Filters failed to start. Full details will be found in the appropriate container log file
11-Mar-2020 06:00:36.958 SEVERE [main] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors

How do I find the container log? I've attempted to add logging lines to logging.properties as instructed here

https://jaykhimani.blogspot.com/2016/12/tomcat-one-or-more-listeners-failed-to.html

also in the system's /etc/tomcat9/logging.properties

system is an EC2 instance running Ubuntu 18.04 LTS

[cdaf]

I have the same symptom, but in Windows 2016. I have also tried setting the logging to no avail, no additional logging is provided. In the past I have blindly upgraded Java, upgraded tomcat, removed and redeployed the WAR file until it worked but this time I still can't get it (jenkins in my case) to start.