Apache Tomcat fails to shutdown gracefully if JFR is enabled in agent config

[jtduffy]

Description

If jfr.enabled is true in the agent config, Apache Tomcat fails to shutdown via the shutdown.sh command. This was tested and reproduced against Tomcat v9 and v10.

Repro

• In the newrelic.yml (or equivalent) set jfr.enabled to true
• In the Tomcat bin folder, add the required -javaagent flag to CATALINA_OPTS:

CATALINA_OPTS="$CATALINA_OPTS -javaagent:/path/to/newrelic.jar"

• Start Tomcat via the bin/startup.sh start script; allow tomcat to fully start up
• Verify the agent is attached and reporting JFR data
• Run the bin/shutdown.sh script. The script seems to exit successfully, but Tomcat is still running.

Internal slack thread

[workato-integration]

https://new-relic.atlassian.net/browse/NR-358920