More descriptive errors for InvalidArgList about jni-rs HOT 5 CLOSED

Have you tried the following?

call_method(callback_object, "onStarted", "()V", &[]).unwrap()

The fourth argument is a (read only) reference to the array of method parameters. It should be empty in your case.

from jni-rs.

Probably InvalidArgList error shall be expanded with information about expected signature and actual number of passed parameters and their types, similarly to FieldNotFound:

https://github.com/prevoty/jni-rs/blob/8592176cd21c9fa70a3788140243096a4c753924/src/wrapper/errors.rs#L27

from jni-rs.

Yes. It definitelly works. Thanks! However I think it would be nice if parser skips the args in case of void signature.

from jni-rs.

I don't think that's a better behaviour because it hides a programming error (= a user is expected to pass as many arguments as the Java method accepts). But if there is an error, I'd expect a meaningful error describing what is wrong. It seems the library already handles this case: https://github.com/prevoty/jni-rs/blob/aac22fddf6b2c3a578b4d27385d9dfc10f984a4b/src/wrapper/jnienv.rs#L833

Did you get a descriptive error message?

from jni-rs.

Did you get a descriptive error message?
-- No.

I don't think that's a better behaviour because it hides a programming error
-- Agree.

Probably InvalidArgList error shall be expanded with information about expected signature
-- This is the best solution!

from jni-rs.