Re: Problem with define-java-proxy

Dominique Boucher <[email protected]> writes:

> I've just started experimenting with the Scheme<->Java interface (s2j)
> using SISC 1.13.6. I did the following:
>
> (import s2j)
> (define-java-class <java.lang.runnable>)
> (define-java-proxy (runnable thunk)
>   (<java.lang.runnable>)
>   (define run
>     (lambda ()
>       (thunk)
>       (void))))
>
> (define-generic-java-methods run)
>
> When I evaluate the expression:
>
> (run (runnable (lambda () (display "Hi!") (newline))))
>
> I get the following error:
>
> Error: #<java java.lang.reflect.UndeclaredThrowableException
> java.lang.reflect.UndeclaredThrowableException>
> ?:?:?: <from call to @s2j-operation::java/invoke-method>
>
> I tried the example in the documentation (with a Comparator), and it
> works fine.
>
> Any idea?

The method must take a parameter, which gets bound to the surrounding
object on invocation. Once I added that your example works fine for me.


The error message is non-sensical. Please raise a bug for that.



Matthias.



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