[1.17.1] Native Adapter improvements

[TheMeinerLP]

Overview

This PR improve readability, error handling and code consistency.

Description

Submitter Checklist

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1. Make sure you are opening from a topic branch (/feature/fix/docs/ branch (right side)) and not your main branch.
2. Ensure that the pull request title represents the desired changelog entry.
3. New public fields and methods are annotated with @since TODO.
4. I read and followed the contribution guidelines.

[NotMyFault]

Upstream structure changes should ultimately be PRed to upstream.

[TheMeinerLP]

Upstream structure changes should ultimately be PRed to upstream.

Some instruction how can easily do that ?
I had also planned for 1.18.2-1.20.2

[NotMyFault]

Ask upstream whether they are interested in such a change. If they aren't, we likely won't accept it either, to keep the maintenance diff as small as possible, especially for upstream classes.

[TheMeinerLP]

Will not be accepted at all.