response.getDestination().getAddress(), response.getDestinationPort());
exchangesByMID.put(idByMID, exchange);
if (response.getOptions().hasBlock2()) {
Request request = exchange.getRequest();
KeyUri idByUri = new KeyUri(request.getURI(),
response.getDestination().getAddress(), response.getDestinationPort());
if (exchange.getResponseBlockStatus()!=null && !response.getOptions().hasObserve()) {
// Remember ongoing blockwise GET requests
LOGGER.fine("Ongoing Block2 started, storing "+idByUri + "\nOngoing " + request + "\nOngoing " + response);
ongoingExchanges.put(idByUri, exchange);