$
G
P
G
G
A
,
.
.
.
   (Carriage return)
   (New Line)
$
G
P
G
S
A

static class SerialPortReader implements SerialPortEventListener {

public void serialEvent(SerialPortEvent event) {


            try {
                byte[] tester = serialPort.readBytes(1);

            //System.out.print(getdata);
            InputStream gpsStream = new ByteArrayInputStream(tester);

            BufferedReader in = new BufferedReader(new InputStreamReader(gpsStream, StandardCharsets.UTF_8));
            String output = in.readLine();






            }


            catch (SerialPortException | IOException ex) {
            }
}