Clojure will use reflection to find *a* method, but if you want it to pick
the correct one from multiple overloads, you need to give clojure type
hints so it knows the correct static types of the parameters. At least I
think that's how it works.
When I've hit this before, I've just played with type hints until it works.
It's one place where type hints have a semantic effect, rather than just
being an optimisation.
Phil
On May 13, 2013 1:25 AM, "Korny Sietsma" <ko...@sietsma.com> wrote:
> Hi folks - I met some strange behaviour today using the clj-ssh library -
> but it looks like it might not be the library's fault as such.
>
> If I call (add-identity agent {:private-key-path "foo" :passphrase "bar"})
> the clj-ssh library (eventually) calls a java method:
>
> (.addIdentity agent "foo" "bar")
>
> This method has several implementations, including:
> public void addIdentity(java.lang.String prvkey, byte[] passphrase);
> public void addIdentity(java.lang.String prvkey, java.lang.String
> passphrase);
> and for some reason this fails with
> ClassCastException java.lang.String cannot be cast to [B
>
> If instead I call:
> (add-identity agent {:private-key-path "foo" :passphrase (.getBytes
> "bar")})
> then everything works.
>
> I had thought Clojure would use reflection to find the right addIdentity
> call - any idea why it isn't? Or am I misdiagnosing something somewhere?
>
> - Korny
>
> --
> Kornelis Sietsma korny at my surname dot com http://korny.info
> .fnord { display: none !important; }
>
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