is

WeakReference<Entity?>

more proper than

WeakReference<Entity>

. If I had to guess, I'd say it will always NPE after GC

get

for

WeakReference<T>

returns

T?

, so

WeakReference<Entity>

would be correct in your case,

get

would then return

Entity?

.

Oh, strange. That must be a built-in exception, right?

I am not quite sure where it gets the nullable information from here, yeah.

yeah,

get()

on WeakReference doesn't have a

@Nullable

annotation but still returns

T?

. Maybe it's hardcoded into the compiler or something