title: Apache Kafka get list of consumers on a specific topic
body: <p>As it can be guest from the title, is there a way to get the consumer list on a specific topic in java?
  Untill now Im able to get the list of topics like this</p>
  
  <pre><code>    final ListTopicsResult listTopicsResult = adminClient.listTopics();
      KafkaFuture&lt;Set&lt;String&gt;&gt; kafkaFuture = listTopicsResult.names();
      Set&lt;String&gt; map = kafkaFuture.get();
  </code></pre>
  
  <p>but I havent found a way to get the list of consumers on each topic</p>