Can Supplier::get return null

Question

The documentation of Supplier::get is not explicit on the possibility or not for it to return null. Is it possible ?

I thought that it might be the case of a Supplier<Void>. In this case, how can I invoke my Supplier to make sure it does not result in Supplier<Void> ? In other word, which T is such such that it can be anything but Void ?

Answer 1

As pointed out by @Michael, it most certainly can, as in the following code snippet:

import java.util.function.*;

class Ideone
{
    public static void main (String[] args) throws java.lang.Exception
    {
        Supplier<String> supplier = () -> null;
        System.out.println(supplier.get());
    }
}

It painfully highlighted my poor understanding of coping with high order usage of Provider.