我试图让android应用程序在崩溃时重启，但我无法让它正常工作。你能帮帮我吗？
这是应用程序代码。希望你能帮助我：
主要活动：

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Thread.setDefaultUncaughtExceptionHandler(new MyExceptionHandler(this));

    if (getIntent().getBooleanExtra("crash", false)) {
        Log.d("Test","Restart after crash");
    }
}

}
myapplication.java

public class MyApplication extends Application {

public static MyApplication instance;
@Override
public void onCreate() {
    super.onCreate();
    instance = this;
}
@Override
public Context getApplicationContext() {
    return super.getApplicationContext();
}
public static MyApplication getInstance() {
    return instance;
}

}
myexceptionhandler：

public class MyExceptionHandler implements Thread.UncaughtExceptionHandler {
private Activity activity;
public MyExceptionHandler(Activity a) {
    activity = a;
}

@Override
public void uncaughtException(Thread thread, Throwable ex) {
    Intent intent = new Intent(activity, MainActivity.class);
    intent.putExtra("crash", true);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
            | Intent.FLAG_ACTIVITY_CLEAR_TASK
            | Intent.FLAG_ACTIVITY_NEW_TASK);
    PendingIntent pendingIntent = PendingIntent.getActivity(MyApplication.getInstance().getBaseContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager mgr = (AlarmManager) MyApplication.getInstance().getBaseContext().getSystemService(Context.ALARM_SERVICE);
    mgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 10000, pendingIntent);
    Log.d("Test","exit my way");
    activity.finish();
    System.exit(2);
}

}
这是我从adb外壳得到的警报

RTC_WAKEUP #0: Alarm{c22bdfd type 0 when 1627381079029 ro.xxxx.appwithrestart}
  tag=*walarm*:ro.xxxx.appwithrestart/.MainActivity
  operation=PendingIntent{56be29a: PendingIntentRecord{9be2a45 ro.xxxx.appwithrestart startActivity (whitelist: e045cfd:+30s0ms)}}

（appsync）ro.x.appwithrestart/0
报警触发后：

ro.xxxx.appwithrestart, u0: -3s669ms,
  u0a298:ro.xxxx.appwithrestart +35ms running, 1 wakeups:
      *walarm*:ro.xxxx.appwithrestart/.MainActivity
   (AppSync) ro.xxxx.appwithrestart/0

但是应用程序没有启动。