Regarding the dlms android project

public GXSerial(Context context) {
if (context == null) {
throw new IllegalArgumentException("context");
}
mContext = context;
GXUsbReceiver mUsbReceiver = new GXUsbReceiver(this);
String name = "gurux.serial";
IntentFilter filter2 = new IntentFilter(name);
filter2.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
filter2.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
mContext.registerReceiver(mUsbReceiver, filter2, Context.RECEIVER_NOT_EXPORTED);
mSyncBase = new GXSynchronousMediaBase(200);
setConfigurableSettings(AvailableMediaSettings.ALL.getValue());
}

this supports only android 8 and above
it is not supporting for android 7 devices i am getting
FATAL EXCEPTION: main
Process: com.iiits.TrmSbd.sit, PID: 6896
java.lang.NoSuchMethodError: No virtual method registerReceiver(Landroid/content/BroadcastReceiver;Landroid/content/IntentFilter;I)Landroid/content/Intent; in class Landroid/content/Context; or its super classes (declaration of 'android.content.Context' appears in /system/framework/framework.jar)
at gurux.serial.GXSerial.<init>(GXSerial.java:216)

i am having the option of
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
context.registerReceiver(mUsbReceiver, filter, Context.RECEIVER_NOT_EXPORTED);
} else {
context.registerReceiver(mUsbReceiver, filter);
}

this but

GXSerial is read only class i want this to support from android 7