DmaapListener handleSubscriptions method returns after creating
consumer thread for first subscription string, issue is fixed by
removing return.
https://jira.onap.org/browse/CCSDK-173
Issue-ID: CCSDK-173
Change-Id: I796b000b22762cda0a4f4fa929d5e2aabdcc7e8b
Signed-off-by: shashikanth.vh <shashikanth.vh@huawei.com>
             }
 
             if (consumerClass != null) {
-                return handleConsumerClass(consumerClass, consumerClassName, propertyPath,
+                handleConsumerClass(consumerClass, consumerClassName, propertyPath,
                     properties, consumers);
             }
         }
-        return false;
+        return !consumers.isEmpty();
     }
 
     private static boolean handleConsumerClass(Class<?> consumerClass, String consumerClassName, String propertyPath,