}
protected MapContainer addSubscriberMessageContainer(String clientId, String subscriptionName) throws IOException {
String containerName = getSubscriptionContainerName(getSubscriptionKey(clientId, subscriptionName));
MapContainer container = store.getMapContainer(containerName,containerName);
container.setKeyMarshaller(Store.MESSAGEID_MARSHALLER);
Marshaller marshaller = new ConsumerMessageRefMarshaller();
container.setValueMarshaller(marshaller);
TopicSubContainer tsc = new TopicSubContainer(container);
subscriberMessages.put(getSubscriptionKey(clientId, subscriptionName), tsc);
return container;
}