Context:

https://github.com/NYPL-Simplified/DRM-Android-Core/blob/2f45e9298b6402c6ed3a6a0fd9e8263620337a6a/nypl-drm-core/src/main/java/org/nypl/drm/core/AdobeAdeptConnectorFactory.java#L113

Okay, there it is! It seems like Adobe Android is actually a bit different than what I proposed. There, the mediating library, the equivalent of PDF Renderer Provider, loads the tainted library, the equivalent of PSPDFKit Provider, directly.

Both ways work fine. It's just a question of where the code in that factory class I linked lives.

You can see how it calls `Class.forName` to load the class dynamically and then casts it to an instance of `AdobeAdeptConnectorType` (which is part of the non-tainted mediating library).