FULL PRODUCT VERSION :


A DESCRIPTION OF THE PROBLEM :
As I mentioned in this link: https://stackoverflow.com/questions/47390432/functional-interface-with-default-behavior-with-serializable

I think the behavior of compiler is wrong.

When an Interface with no default method extends Serializable everythings works fine. But When a default method for that interface comes in picture we have a warning that says:

MyInterface.java: serializable class MyInterface has no definition of serialVersionUID
It got intersting when I change that interface to a abstract class. The error disappears.

To sum up the warning happening table is as below:

|----------------------------|------------------|
| Type | WARNING |
|----------------------------|------------------|
| interface with no defaults | NO |
|----------------------------|------------------|
| interface with defaults | YES |
|----------------------------|------------------|
| abstract class | NO |
|----------------------------|------------------|
Is there any reason for that or it's just a bug?




REPRODUCIBILITY :
This bug can be reproduced always.