code.java

         this.locator = ActiveMQClient.createServerLocator(String.format("tcp://%s:%s", mgmtEndpoint.hostName(), mgmtEndpoint.port()));
        this.sessionFactory = locator.createSessionFactory();
        this.session = sessionFactory.createSession();


ClientRequestor requestor = new ClientRequestor(session, "jms.queue.activemq.management");
        ClientMessage message = session.createMessage(false);
        ManagementHelper.putOperationInvocation(message, address, "listAllSubscriptionsAsJSON");
        session.start();
        ClientMessage reply = requestor.request(message);
        String retVal = (String)ManagementHelper.getResult(reply);
        session.stop();
        return retVal;

sublist.json

[{"queueName":"helloclient:helloclient","clientID":null,"selector":null,"name":"helloclient:helloclient","durable":true,"messageCount":0,"deliveringCount":0,"consumers":"[{\"consumerID\":0,\"connectionID\":\"1771513900\",\"sessionID\":\"1c67e2eb-84a1-11e6-8605-44850066eaf9\",\"browseOnly\":false,\"creationTime\":1474973818275}]"}]