When does getClass().getName() return void?

Question

The java documentation for Class.getName() says:

Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this Class object, as a String.

When will it return void?

Answer 1

It will give you void String for class literal for void type:

Class<Void> clazz = void.class;
System.out.println(clazz.getName());

Refer JLS § 15.8.2 for further reading:

A class literal is an expression consisting of the name of a class, interface, array, or primitive type, or the pseudo-type void, followed by a '.' and the token class.
[...]
The type of void.class (§8.4.5) is Class<Void>.