code: public HealthCheck.Result runHealthCheck(String name) throws NoSuchElementException {
          final HealthCheck healthCheck = healthChecks.get(name);
          if (healthCheck == null) {
              throw new NoSuchElementException("No health check named " + name + " exists");
          }
          return healthCheck.execute();
      }
docs: Runs the health check with the given name.
  
  @param name the health check's name
  @return the result of the health check
  @throws NoSuchElementException if there is no health check with the given name