SpringBoot + Prometheus JMX Exporter
./gradlew build
java -javaagent:jmx_prometheus_javaagent-0.11.0.jar=8081:config.yaml -jar build/libs/gs-spring-boot-0.1.0.jar
https://spring.io/guides/gs/spring-boot/
https://github.com/prometheus/jmx_exporter