When you have a Java method

public Foo foo()

, which is known to return non-null but is not annotated as such, what is the preferred way to tell Kotlin that the value you assign is definitely non-nullable? (1)

val x: Foo = foo()

or (2)

val x = foo()!!

explanation for me is unrelated tho, I prefer to be explicit with types as when I am using GitHub, it has no hints to know the exact type.

if I have other reasons to specify the type I do 1, but just for nullability I do 2.