I am trying to enable paging mode in embedded server using following code. Maximum allowed memory set to 50MBs, but when I run the program, it uses more than 450MBs (for 200,000 messages) and the paging file size is zero! Is there anything I missed in paging configuration?

  final String queueName = "queue.exampleQueue";

  AddressSettings addressSettings = new AddressSettings();
  addressSettings.setMaxSizeBytes(50 * 1024 * 1024);
  addressSettings.setPageSizeBytes(25 * 1024 * 1024);
  addressSettings.setAddressFullMessagePolicy(AddressFullMessagePolicy.PAGE);
  final Map<String, AddressSettings> addressing = new HashMap<String, AddressSettings>();
  addressing.put(queueName, addressSettings);

  Configuration configuration = new ConfigurationImpl();
  configuration.setJournalDirectory("target/data/journal");
  configuration.setPagingDirectory("target/data/paging");
  configuration.setPersistenceEnabled(false);
  configuration.setSecurityEnabled(false);
  configuration.getAcceptorConfigurations()
  .add(new TransportConfiguration(InVMAcceptorFactory.class.getName()));
  configuration.setAddressesSettings(addressing);

  HornetQServer server = HornetQServers.newHornetQServer(configuration);
  server.start();

  ServerLocator serverLocator = HornetQClient
  .createServerLocatorWithoutHA(new TransportConfiguration(InVMConnectorFactory.class.getName()));
  ClientSessionFactory sf = serverLocator.createSessionFactory();
  ClientSession coreSession = sf.createSession(false, false, false);
  coreSession.createQueue(queueName, queueName, true);
  coreSession.close();

  ClientSession session = null;
  try {
       session = sf.createSession();
       ClientProducer producer = session.createProducer(queueName);
       ClientMessage message = session.createMessage(false);
       final String propName = "myprop";
       message.putStringProperty(propName, "Hello sent at " + new Date());
       System.out.println("Sending the message.");
       for (int i = 0; i < 200000; i++)
            producer.send(message);

       ClientConsumer messageConsumer = session.createConsumer(queueName);
       session.start();
       int counter = 0;
       ClientMessage messageReceived = messageConsumer.receiveImmediate();
       while (messageReceived != null) {
            messageReceived.acknowledge();
            counter++;
            messageReceived = messageConsumer.receiveImmediate();
       }
       System.out.println(String.format("%d messages received!", counter));
  } finally {
       if (sf != null) {
            sf.close();
       }
       server.stop();
  } catch (Exception e) {
       e.printStackTrace();
  }