public T get(int i) {
T wrapper = null;
if (parameterType == JsonArrayNumber.class) {
wrapper = (T) new GwtJsonArrayNumber((JsArrayNumber) jso.get(i));
} else if(parameterType == JsonArrayString.class) {
wrapper = (T) new GwtJsonArrayString((JsArrayString) jso.get(i));
}
return wrapper;
}