title: SpringBoot 1.5.1: health endpoint does not show registered health indicators
body: <p>I upgraded spring boot version from 1.4.2 to 1.5.1. My application depends on RabbitMQ.</p>
  
  <p>While using version 1.4.2 the output of health endpoint was</p>
  
  <pre><code>{
    "status": "UP",
    "diskSpace": {
      "status": "UP",
      "total": 249779191808,
      "free": 160644202496,
      "threshold": 10485760
    },
    "rabbit": {
       "status": "UP",
       "version": "3.6.5"
    }
  }
  </code></pre>
  
  <p>After the upgrade, with version 1.5.1 the output is</p>
  
  <pre><code>{
    "status": "UP"
  }
  </code></pre>
  
  <p>So, diskSpace and rabbit indicators are not there anymore. Strangely in the logs, I can find this:</p>
  
  <pre><code>Registering bean definition for @Bean method org.springframework.boot.actuate.autoconfigure.HealthIndicatorAutoConfiguration$DiskSpaceHealthIndicatorConfiguration.diskSpaceHealthIndicatorProperties()
  Registering bean definition for @Bean method org.springframework.boot.actuate.autoconfigure.HealthIndicatorAutoConfiguration$RabbitHealthIndicatorConfiguration.rabbitHealthIndicator() 
  </code></pre>
  
  <p>and even when I request /health endpoint I can see in the logs that call to RabbitMq is made</p>
  
  <pre><code>o.s.amqp.rabbit.core.RabbitTemplate - Executing callback on RabbitMQ Channel: Cached Rabbit Channel: AMQChannel(amqp://guest@0:0:0:0:0:0:0:1:5672/,2), conn: Proxy@5292883 Shared Rabbit Connection: SimpleConnection@1aa1a795 [delegate=amqp://guest@0:0:0:0:0:0:0:1:5672/, localPort= 59527]
  </code></pre>
  
  <p>Expectedly, if I shut down the RabbitMQ instance the response is</p>
  
  <pre><code>{
    "status": "DOWN"
  }
  </code></pre>
  
  <p>In my <code>application.yml</code> I don't have any configuration for health, so the default configuration is used.</p>
  
  <p>How to get back the old output for health endpoint?</p>