I know the reason due to which I'm able to write this without any issues. But should I be able to do...

# compiler

[Shreyas Patil]

I know the reason due to which I'm able to write this without any issues. But should I be able to do that with strict type checking?

[ephemient]

null inhabits all T?, and value is smart-cast to null. why shouldn't you be able to?

[Paul Woitaschek]

Yep. In line 7 the compiler knows it's null. And setInt accepts nulls.