public static String generateNativeGuid(ComputeSystem device){
  return String.format("%s+%s+%s",_deviceTypeMap.get(device.getSystemType()),device.getIpAddress(),device.getPortNumber());
}

public static String generateNativeGuid ( ComputeSystem device ) { return String . format ( "%s+%s+%s" , _deviceTypeMap . get ( device . getSystemType ( ) ) , device . getIpAddress ( ) , device . getPortNumber ( ) ) ; }
the format of this native guid is computesystem + ipaddress + port
