We keep on seeing this message
07-Jan-2020 23:57:14.407 WARNING [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.valves.StuckThreadDetectionValve.notifyStuckThreadCompleted Thread [http-nio-8080-exec-14] (id=[33]) was previously reported to be stuck but has completed. It was active for approximately [127,330] milliseconds.
And our JIRA login page does not load. The browser is just blank. Every once in a while the page loads.
I increased the maxthread value to 1024 (from 150) in the server.xml file and restarted the server - no change.