anchor.diff:      public MongoDbFactory mongoDbFactory() {
           CloudFactory cloudFactory = new CloudFactory();
           Cloud cloud = cloudFactory.getCloud();
  -        MongoServiceInfo serviceInfo = (MongoServiceInfo) cloud.getServiceInfo("my-mongodb");
  -        String serviceID = serviceInfo.getID();
  -        return cloud.getServiceConnector(serviceID, MongoDbFactory.class, null);
  +        return cloud.getSingletonServiceConnector(MongoDbFactory.class, null);
       }
   
       @Bean
  
positive.code:     public ConnectionFactory rabbitConnectionFactory() {
          CloudFactory cloudFactory = new CloudFactory();
          Cloud cloud = cloudFactory.getCloud();
          AmqpServiceInfo serviceInfo = (AmqpServiceInfo) cloud.getServiceInfo("my-rabbit");
      String serviceID = serviceInfo.getID();
      return cloud.getServiceConnector(serviceID, ConnectionFactory.class, null);
      }
  
      @Bean
  
negative.code:     public DataSource dataSource() {
          CloudFactory cloudFactory = new CloudFactory();
          Cloud cloud = cloudFactory.getCloud();
          return cloud.getSingletonServiceConnector(DataSource.class, null);
      }
  }
  ```
  