https://spring.io/projects/spring-boot: Spring Boot Actuator (Pivotal Software, Inc.) 
public interface org.springframework.boot.actuate.health.HealthContributorRegistry extends org.springframework.boot.actuate.health.ContributorRegistry<org.springframework.boot.actuate.health.HealthContributor>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.springframework.boot.actuate.health.HealthContributorRegistry
  super_class: java.lang.Object
{
}
Signature: Ljava/lang/Object;Lorg/springframework/boot/actuate/health/ContributorRegistry<Lorg/springframework/boot/actuate/health/HealthContributor;>;
SourceFile: "HealthContributorRegistry.java"