Java NPE in ternary operator with autoboxing?

Question

I ran across a very weird NPE this morning, and reduced it to a simple example. Is this a JVM bug or correct behavior?

public class Test1 {
    class Item {
         


        

Answer 1

item may not be null, but when you call getId(), that is returning null. When you try to auto-unbox null, you get an NPE.