ETListSubscriberService listSubscriberService = new ETListSubscriberServiceImpl();

... //create filter with list id and unsubscribed status

ETResponse<ETListSubscriber> response = listSubscriberService.get(client, filterByListIdAndUnsubscribedStatus);

response.getResults(); //does not return more than the 2500 limit

if(response.hasMoreResults()){

   //what to do from here???

}