关于 java：使用返回不正确布尔值的布尔数组列表反序列化对象

private boolean state;
private boolean repeating;
private int hours;
private int mins;
private ArrayList<Boolean> days;
private final int numdays = 7;

 public alarm_entity(int hoursin, int minsin)
{

    days = new ArrayList<Boolean>();
    state = true;
    repeating = false;
    hours = hoursin;
    mins = minsin;
    initDays();
}

private void initDays()
{
    for(int i = 0 ; i < numdays; i++)
    {
        boolean temp = false;
        days.add(i, temp);
    }
}

public void setDay(int pos, boolean state)
{
    days.add(pos, state);
}

public ArrayList<Boolean> getDays()
{
   return days;
}

public int getMins()
{
    return mins;
}

public void setMins(int minsin)
{
    mins = minsin;
}

public boolean isState() {
    return state;
}

public int getHours()
{
   return hours;
}

public void setHours(int hoursin)
{
    hours = hoursin;
}

public void setState(boolean statein)
{
    state = statein;
}

public boolean getState()
{
    return state;
}
}

    if(alarmfile == null) {

        createFile(Alarm_List.filename);
    }

    try
    {
        fostream = new FileOutputStream(alarmfile);
        oostream = new ObjectOutputStream(fostream);
        addAlarms(alarmlist);

        oostream.close();
        fostream.close();
    }
    catch(Exception ex)
    {
        ex.printStackTrace();
        Log.e("error","write exception");
    }

}

private void addAlarms(final ArrayList alarmlist) {

    Thread mythrd = new Thread(new Runnable() {

        @Override
        public void run() {

            for(alarm_entity alarm : alarmlist)
            {
                try {
                    oostream.writeObject(alarm);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    });

    mythrd.start();

    try {
        mythrd.join();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }

    Log.d("alarms writing","alarms saved");
}