How can I collect a Java 8 stream into a Guava ImmutableCollection?

Question

I would like to do the following:

List list = IntStream.range(0, 7).collect(Collectors.toList());

but in a way that the resu

Answer 1

BTW: since JDK 10 it can be done in pure Java:

List list = IntStream.range(0, 7)
    .collect(Collectors.toUnmodifiableList());

Also toUnmodifiableSet and toUnmodifiableMap available.

Inside collector it was done via List.of(list.toArray())