protected void handleDiscoveryResponse(PingData data, Address sender) {
// add physical address (if available) to transport's cache
Address logical_addr = data.getAddress() != null ? data.getAddress() : sender;
addDiscoveryResponseToCaches(logical_addr, data.getLogicalName(), data.getPhysicalAddr());
boolean overwrite = Objects.equals(logical_addr, sender);
addResponse(data, overwrite);
}
private boolean keyServerChanged(Address newKeyServer) {
return !Objects.equals(keyServerAddr, newKeyServer);
}