https://docs.oracle.com/javase/jp/18/docs/api/java.management/javax/management/relation/RelationService.html
RelationService (Java SE 18 & JDK 18)
declaration: module: java.management, package: javax.management.relation, class: RelationService
java sejdk
https://docs.oracle.com/javase/jp/13/docs/api/java.management/javax/management/relation/RelationService.html
RelationService (Java SE 13 & JDK 13 )
declaration: module: java.management, package: javax.management.relation, class: RelationService
java sejdk
https://docs.oracle.com/javase/jp/15/docs/api/java.management/javax/management/relation/RelationService.html
RelationService (Java SE 15 & JDK 15)
declaration: module: java.management, package: javax.management.relation, class: RelationService
java sejdk