为了总结我的问题，我从jserialcomm库的串行端口获取了一些数据。这些数据是不断流动的数据，有时数据可能不完整或过剩。我想从这些数据中获取一个干净的数据，并通过spring boot将其作为web服务发送到tcp端口，但不幸的是，我得到了一个不规则的数组。当我再次触发它的抛出 ConcurrentModificationException . 我无法按需要控制此数组并将清晰数据发送到： http://localhost:8090/value .
结果：

packetlistenerclass类：

public class PacketListener  implements SerialPortDataListener {
    Logger logger = Logger.getLogger(PacketListener.class.getName());
    public String str;
    public List<String> collector = new ArrayList<>();
    int counter = 0;

    @Override
    public int getListeningEvents() {
        return SerialPort.LISTENING_EVENT_DATA_RECEIVED;
    }

    @Override
    public void serialEvent(SerialPortEvent serialPortEvent) {
        while (counter <10) {
            byte[] newData = serialPortEvent.getReceivedData();
            logger.log(Level.INFO, "received Data : {0}", new String(newData));
            collector.add(new String(newData));
            counter++;
        }
    }
}

端口服务类：

@Service
public class PortService implements PortManager {
    Logger logger = Logger.getLogger(PortService.class.getName());
    Entities entities;

    @Override
    public void portReader() {

        SerialPort comPort = SerialPort.getCommPorts()[0];
        setProperties(comPort);
        comPort.openPort();
        comPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_BLOCKING,0,0);
        PacketListener packetListener = new PacketListener();
        comPort.addDataListener(packetListener);

    }

    @Override
    public SerialPort setProperties(SerialPort serialPort) {
        entities = new Entities();
        serialPort.setBaudRate(entities.getBaudRate());
        serialPort.setParity(Parity.NONE.getValue());
        serialPort.setNumDataBits(entities.getDataBits());
        serialPort.setNumStopBits(entities.getStopBits());
        return serialPort;
    }
}

portcontroller类：

@Controller
public class PortController {
    @Autowired
    PortManager portService;
    PacketListener packetListener = new PacketListener();

    @GetMapping(value = "/value")
    @ResponseBody
    public List<String> getValue(){
     portService.portReader();
     return packetListener.collector;
    }
}

我想控制一切 packetListener.collector 数组或它可以是任何字符串值，如果我可以确定它的正确性了。