问usb4java:USB错误4：没有这样的设备（它可能已经断开连接）？

LibUsb.freeDeviceList(list, true);报错：USB error 4: No such device (it may have been disconnected)

LibUsb.freeDeviceList(list, false);报错：USB error 12: Operation not supported or unimplemented on this platform

public class Test3 {
    private static final short idVendor = 0x4080;
    private static final short idProduct = 0x00F0;


    public static void main(String[] args) {

        Context context = new Context();
        int result = LibUsb.init(context);
        if(result != LibUsb.SUCCESS) {
            throw new LibUsbException("Unable to initialize libusb.", result);
        }

        //获取对应的USB
        Device device = findDevice(context);

        System.out.println(device);

        //打开设备
        DeviceHandle handle = new DeviceHandle();
        result = LibUsb.open(device, handle);

        if(result != LibUsb.SUCCESS) {
            throw new LibUsbException(result);
        }


    }

    public static Device findDevice(Context context){
        DeviceList list = new DeviceList();
        int result = LibUsb.getDeviceList(context, list);

        try {
            // 遍历设备列表
            for (Device device : list) {
                DeviceDescriptor descriptor = new DeviceDescriptor();
                result = LibUsb.getDeviceDescriptor(device, descriptor);
                if (result != LibUsb.SUCCESS) {
                    throw new LibUsbException("Unable to read device descriptor.", result);
                }

                System.out.println("设备: VID="+descriptor.idVendor()+", PID="+descriptor.idProduct());
                System.out.printf("设备: VID=0x%04X, PID=0x%04X%n", descriptor.idVendor(), descriptor.idProduct());
                System.out.println("-------------------------------");

                if (descriptor.idVendor() == idVendor && descriptor.idProduct() == idProduct){

                    return device;
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }
        finally {
            // 释放资源
            LibUsb.freeDeviceList(list, true);
            LibUsb.exit(context);
        }
        return null;
    }
}