the shortest code to throw a NullPointerException

If I were to throw a NullpointerException from within my code I normally would code something like this:

if(somethingIsNull) {
	throw new NullPointerException();
}

While reading the code examples on https://github.com/reactive-streams/reactive-streams-jvm I just saw this definitely shorter possibility which I did not know up to now:

if(somethingIsNull) {
	throw null;
}