@Override
public E remove(Object key) {
throw AppError.Unsupported();
}
@Override
public E put(String key, E value) {
throw AppError.Unsupported();
}
@Override
public void putAll(Map<? extends String, ? extends E> map) {
throw AppError.Unsupported();
}
@Override
public void clear() {
throw AppError.Unsupported();
}