Compilation error with JDK9-ea+138

[Alex Buckley]

This isn't a Jigsaw issue, please mail compiler-dev instead, being sure 
to note which JDK 9 build you are compiling with.

On 10/5/2016 12:55 AM, Christian Beikov wrote:
> The following used to compile just fine on JDKs < 9
>
>      @Override
>      public <C, R> SimpleCase<C, R> selectCase(Expression<? extends C>
> expression) {
>          return selectCase((Class<R>) null, expression);
>      }
>
>      public <C, R> SimpleCase<C, R> selectCase(Class<R> type,
> Expression<? extends C> expression) {
>          return new SimpleCaseExpression<C, R>(this, type, expression);
>      }
>
> but now fails with:
>      error: incompatible types: SimpleCase<CAP#1,R> cannot be converted
> to SimpleCase<C,R>
>
> The error is in the first selectCase method.
>
> Is that a bug in the compiler?
>
> Regards,
> Christian