api/src/main/java/jakarta/faces/component/_DeltaStateHelper.java [670:715]:
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        if (serializableMap == null || serializableMap.isEmpty())
        {
            return null;
        }

        Map.Entry<Serializable, Object> entry;
        Object[] retArr = new Object[serializableMap.entrySet().size() * 2];

        Iterator<Map.Entry<Serializable, Object>> it = serializableMap.entrySet().iterator();
        int cnt = 0;
        while (it.hasNext())
        {
            entry = it.next();
            retArr[cnt] = entry.getKey();

            Object value = entry.getValue();
            
            // The condition in which the call to saveAttachedState
            // is to handle List, StateHolder or non Serializable instances.
            // we check it here, to prevent unnecessary calls.
            if (value instanceof StateHolder ||
                value instanceof List ||
                !(value instanceof Serializable))
            {
                Object savedValue = UIComponentBase.saveAttachedState(context, value);
                retArr[cnt + 1] = savedValue;
            }
            else
            {
                retArr[cnt + 1] = value;
            }
            cnt += 2;
        }
        
        return retArr;
    }

    @Override
    public void restoreState(FacesContext context, Object state)
    {
        if (state == null)
        {
            return;
        }

        Object[] serializedState = (Object[]) state;
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api/src/main/java/jakarta/faces/component/behavior/_AjaxBehaviorDeltaStateHelper.java [410:455]:
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        if (serializableMap == null || serializableMap.isEmpty())
        {
            return null;
        }

        Map.Entry<Serializable, Object> entry;
        Object[] retArr = new Object[serializableMap.entrySet().size() * 2];

        Iterator<Map.Entry<Serializable, Object>> it = serializableMap.entrySet().iterator();
        int cnt = 0;
        while (it.hasNext())
        {
            entry = it.next();
            retArr[cnt] = entry.getKey();

            Object value = entry.getValue();

            // The condition in which the call to saveAttachedState
            // is to handle List, StateHolder or non Serializable instances.
            // we check it here, to prevent unnecessary calls.
            if (value instanceof StateHolder ||
                    value instanceof List ||
                    !(value instanceof Serializable))
            {
                Object savedValue = UIComponentBase.saveAttachedState(context, value);
                retArr[cnt + 1] = savedValue;
            }
            else
            {
                retArr[cnt + 1] = value;
            }
            cnt += 2;
        }

        return retArr;
    }

    @Override
    public void restoreState(FacesContext context, Object state)
    {
        if (state == null)
        {
            return;
        }

        Object[] serializedState = (Object[]) state;
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