title: Karaf retrieve a service object / reference from bundle context
body: <p>In Karaf version 3.0.3 i was able to retrieve the ServiceReference object using the below code</p>
  
  <pre><code>ServiceReference serviceReference = 
                  (ServiceReference) bundleContext.getServiceReference(CustomService.class.getName());
  </code></pre>
  
  <p>But in Karaf 4 this code returns null. My service is started i was able to see the service in the service list. </p>
  
  <p>Note: i am trying to retrieve a service which is loaded as a wrapped bundle</p>