https://docs.spring.io/spring-framework/docs/2.0.x/javadoc-api/org/springframework/util/comparator/ComparableComparator.html
ComparableComparator (Spring Framework API 2.0)
spring frameworkapi
https://access.redhat.com/webassets/avalon/d/red_hat_jboss_enterprise_application_platform/7.3/javadocs/org/hibernate/internal/util/compare/ComparableComparator.html
ComparableComparator (Red Hat JBoss Enterprise Application Platform 7.3.0.GA public API)
red hat jboss