How to copy byte[] from Java to Rust

[pickleburger]

Hello,

I have a method in Java which returns a byte[]. How can I copy the return value into a Rust byte array, e.g. Vec<u8> efficiently (with minimal serialization/deserialization)?

Thanks!

[astonbitecode]

Unfortunately, having to_rust handling container types like Vec or Map natively (using jni if they contain basic types) is parked for a while. This is because Rust does not implement reflection and it seems the way to go is implementing a macro.

Maybe the time has come to deal with it. Until this is implemented, I am afraid there is no way to copy Java Lists or Maps to rust without deserialization.

[pickleburger]

@astonbitecode thanks for the quick response. I'm wondering if you are open to a PR for handling just primitive arrays. I can put up one, since it's needed for my short-term requirements.

[astonbitecode]

Sure, please go on for the PR.

[pickleburger]

Thank you! I just created #97

Can you please have a look?

[astonbitecode]

Implemented in PR #97.

Thanks @pickleburger