com.ringcentral.platform.metrics:metrics-facade-spring-boot-sample-app (maven):  RingCentral Metrics Facade is a Java library for working with metrics, allowing extremely flexible configuration of metrics and their export, designed to be generic and not tied to a specific implementation. 
Keywords: hdrhistogram|histogram|java|jmx|metrics|monitring|open-source|prometheus|ringcentral|zabbix