On Tuesday, July 26, 2016 at 4:45:03 PM UTC+2, zakaria amine wrote:
>
> I have an interface annotated with @JsFunction that I use as a callback
> for events. As there are different types of events, I have added a type
> parameter:
>
>
> @JsFunctionpublic interface Function<T extends Event>{
>
> public JavaScriptObject call(T event);
> }
>
>
> From the entry point I do something like :
>
>
> //...
>
> map.on("click", new Function<MouseEvent>(){
> @Override
> public JavaScriptObject call(MouseEvent event) {
>
> });
>
>
> When I run the project, everything compiles and run fine. But when the
> code above is executed, I get the following exception in the console:
>
> Uncaught java.lang.ClassCastException
> InternalPreconditions.java:45
>
>
> This seems like a GWT internal error. Is this a known bug in GWT 2.8 ? Are
> generics not allowed with JsInterop types?
>
Many things have changed since 2.8.0-beta1, have you tried with
2.8.0-SNAPSHOT? (I'm not saying it *will* work, I'm saying one shouldn't
draw conclusions based on beta1)
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