@Override
	public int getOrder() {
		// registered with a high order priority so the close() method is invoked early
		// and *BEFORE* EurekaAutoServiceRegistration
		// (must be in effect when the registration is closed and the eureka replication
		// triggered -> health check handler is
		// consulted at that moment)
		return Ordered.HIGHEST_PRECEDENCE;
	}
{@code true} until the context is stopped.
spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaHealthCheckHandler.java