title: spring-boot health not showing details (withDetail info)
body: <p>I have written a class implementing HealthIndicator, overriding the health-method. I return <code>Health.down().withDetail("SupportServiceStatus", "UP").build();</code></p>
  
  <p>This should make my <code>health</code>-endpoint return:</p>
  
  <pre><code>{
      "status":"UP",
      "applicationHealth": {
          "status":"UP"
      }
  }
  </code></pre>
  
  <p>Instead it just returns (health, without details):</p>
  
  <pre><code>{
      "status":"UP",
  }
  </code></pre>
  
  <p>Javacode (somewhat simplified):</p>
  
  <pre><code>@Component
  public class ApplicationHealth implements HealthIndicator {
  
    @Override
    public Health health() {
      return check();
    }
  
    private Health check() {
      return Health.up().withDetail("SupportServiceStatus", supportServiceStatusCode).build();
    }
  
  }
  </code></pre>