https://tomcat.apache.org/tomcat-11.0-doc/api/org/apache/catalina/tribes/group/interceptors/NonBlockingCoordinator.CoordinationEvent.html
NonBlockingCoordinator.CoordinationEvent (Apache Tomcat 11.0.22 API Documentation)
declaration: package: org.apache.catalina.tribes.group.interceptors, class: NonBlockingCoordinator, class: CoordinationEvent
apache tomcatapidocumentation