lambda in a static method of an interface

[Brian Goetz]

Yes, we're working on this.

On 4/1/2013 12:49 PM, Mike Duigou wrote:
> Also present in Mercurial tip unless very recently fixed.
>
> Mike
>
> On Apr 1 2013, at 05:04 , Remi Forax wrote:
>
>> This code currently compiles but doesn't work at runtime
>>
>> public interface User {
>>    public default String firstName() {
>>      return transform(0);
>>    }
>>
>>    public default String lastName() {
>>      return transform(1);
>>    }
>>
>>    public abstract String transform(int index);
>>
>>    public static User User(String firstName, String lastName) {
>>      return ref -> (ref == 0)? firstName: lastName;
>>    }
>>
>>    public static void main(String[] args) {
>>      User bob = User("Bob", "Vance");
>>      System.out.println(bob.firstName());
>>      System.out.println(bob.lastName());
>>    }
>> }
>>
>> Exception in thread "main" java.lang.IncompatibleClassChangeError: Class
>> java.lang.String does not implement the requested interface User
>>      at User$$Lambda$1.transform(Unknown Source)
>>      at User.firstName(User.java:3)
>>      at User$$Lambda$1.firstName(Unknown Source)
>>      at User.main(User.java:18)
>>
>> I believe it's a bug in javac, the desugared method is not declared
>> static but should:
>>    public java.lang.String lambda$0(java.lang.String, java.lang.String,
>> int);
>>
>> BTW, I use the b83 binary build, not the lastest mecurial tip.
>>
>> cheers,
>> Rémi
>>
>>
>>
>
>