* Christoph Höger <christoph.hoeger@xxxxxxxxxxxx> [2011-10-31 11:37]:
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> Hash: SHA1
>
> Hi all,
>
> I am really unsure here, if this is a javac bug, or an eclipse glitch
> or something plain strange. Consider the following interfaces:
>
> public interface A {
> A foo();
> }
>
> public interface B {
> B foo();
> }
>
> public interface C extends A, B {
> @Override
> C foo();
> }
>
> Eclipse _does_ compile those interfaces. If you comment out C foo(),
> it (rightfully IMO) complains.
> javac does _not_ compile those interfaces and (IMO erroneously)
> complains about incompatible super interfaces.
>
> Any ideas who is wrong?
>
It looks like a known bug in the 6 compiler related to interface
inheritance and covariant return types. I think this is the commit
that fixed it in 7:
http://hg.openjdk.java.net/jdk7/jdk7/langtools/rev/4a3b9801f7a0
If you have code that resembles the above and would like to see the fix
backported to 6, please feel free to open a bug.
Cheers,
Deepak
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