Converting Immutable to mutable list Java, is there any alternative? [closed]

Question

I have a method that returns an Immutable list. I want to add elements to it and that's why have to convert it to a mutable list. Currently, I am creating a new ArrayList out of the Immutable list as follows:

final List<someDTO> mutableList = new ArrayList<>(someDTO.getImmutableList());

Is there any better way of doing it like using some collections copy method, java streams, or anything like that?

Answer 1

in all honesty, that's as best as it gets, but another variant would be:

someDTO.getImmutableList().stream().collect(toCollection(ArrayList::new));