I have been using GSON with proguard enabled in my app. I am saving an object in shared prefs using GSON like this

DriverBalanceStat class

public class DriverBalanceStat {
public Double Balance;
public Integer PendingDays;
public boolean IsMeterBlocked;
public Long BalanceDate;
public double CashbackAmount;
public Boolean IsAllowCashTrip;
public Boolean IsAllowCashlessTrip;

public DriverBalanceStat(Double balance, Integer pendingDays, boolean isMeterBlocked, Long balanceDate,
                         Double cashbackAmount, Boolean isAllowCashTrip, Boolean isAllowCashlessTrip) {
    this.Balance = balance;
    this.PendingDays = pendingDays;
    this.IsMeterBlocked = isMeterBlocked;
    this.BalanceDate = balanceDate;
    this.CashbackAmount = cashbackAmount;
    this.IsAllowCashTrip = isAllowCashTrip;
    this.IsAllowCashlessTrip = isAllowCashlessTrip;
}

}

Setting object in shared pref

    public boolean SetAppPrefsByKey(int key, Object value) {
    synchronized (this) {
        try {
            Gson gson = new Gson();
            String json = gson.toJson(value);
            prefsEdit.putString(context.getString(key), json);
            prefsEdit.apply();
            return true;
        } catch (Exception e) {
            FirebaseCrashlytics.getInstance().recordException(e);
            return false;
        }
    }
}

Getting object from shared pref

 public Object GetAppObjectByKey(int key, Class<?> cls) {
    synchronized (this) {
        Gson gson = new Gson();
        String json = prefs.getString(context.getString(key), "");
        return gson.fromJson(json, cls);
    }
}

Whenever i trying to get the values from shared pref using

(DriverBalanceStat) sharedPrefUtil.GetAppObjectByKey(R.string.driver_bal_key, DriverBalanceStat.class)

it throws me fatal error

java.lang.IllegalStateException - Expected an int but was BOOLEAN at line 1 column 24 path $.b

When i logged the values saved in pref i got the following results

without proguard

{"Balance":-35617.2,"BalanceDate":1717503937502,"CashbackAmount":0.0,"IsAllowCashTrip":true,"IsAllowCashlessTrip":true,"IsMeterBlocked":false,"PendingDays":0}

with proguard

{"a":-0.0,"b":false,"c":1717804886626,"d":true,"e":true}

Problem starts only after i upgrade my gradle plugin to 7.4.2 from 4.x.x

kindly suggest. My app is breaking in release version