Do you have any other class implementing the failing interface?
When there's only one implementation, the compiler can "tighten" the types and
consider/replace every use of the interface as/with the implementing class. The
class then extends JSO so GWT knows it doesn't need any cast (actually,
I do not see any usage of *Impl, are they there ?
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That is pretty awesome. Thanks!
On Thu, Sep 7, 2017 at 6:55 AM, Benjamin DeLillo wrote:
> I decided to package this up in a standalone library so it can be used
> until such time that it makes it into a GWT release.
>
> https://github.com/OneGeek/GWT-CompletableFuture
>
> On