Eclipse bug? Switching on a null with only default case

Question

I was experimenting with enum, and I found that the following compiles and runs fine on Eclipse (Build id: 20090920-1017, not sure exact compiler version):

Answer 1

Yep. According to the JLS it's a bug:

If the switch expression is of a reference type, such as a boxed primitive type or an enum, a run-time error will occur if the expression evaluates to null at run-time.