Why doesn't String switch statement support a null case?

Question

I am just wondering why the Java 7 switch statement does not support a null case and instead throws NullPointerException? See the comm

Answer 1

The answer is simply that if you use a switch with a reference type (such as a boxed primitive type), the run-time error will occur if the expression is null because unboxing it would throw the NPE.

so case null (which is illegal) could never be executed anyway ;)