@Override
public Short get(int index) {
short value = list.get(index);
if (value == list.getNoEntryValue()) return null;
else return Short.valueOf(value);
}
@Override
public Short set(int index, Short value) {
short previous_value = list.set(index, value);
if (previous_value == list.getNoEntryValue()) return null;
else return Short.valueOf(previous_value);
}
@Override
public Short remove(int index) {
short previous_value = list.removeAt(index);
if (previous_value == list.getNoEntryValue()) return null;
else return Short.valueOf(previous_value);
}