Crash on Android: org.jni_zero.JniInit not found when loading libjingle_peerconnection_so (WebRTC + AGP 8.x / R8 shrinker)

[nightjar0]

Description

When initializing PeerConnectionFactory on Android, the app crashes because the native WebRTC library (libjingle_peerconnection_so.so) fails to find the Java class org.jni_zero.JniInit.

This happens on release builds with R8/ProGuard enabled. The crash is reproducible on AGP 8.x (Gradle 8.x) with WebRTC binaries.

Steps to reproduce

1. Add WebRTC dependency with bundled libjingle_peerconnection_so.so.
2. Enable minifyEnabled true with R8 (default in release).
3. Build and run on a device.
4. Call PeerConnectionFactory.initialize(...).

Expected behavior

The library should load cleanly and initialize without requiring extra ProGuard rules.

Actual behavior

The app crashes during startup with ClassNotFoundException for org.jni_zero.JniInit.

Environment

• Android Gradle Plugin: 8.7.3
• Gradle: 8.x
• WebRTC library: 137.7151.04
• Device: [Pixel 6a, Android 16]
• Build: release with R8

[nightjar0]

Adding the following ProGuard rules resolves the crash:
-keep class org.webrtc.** { *; }
-keep class org.jni_zero.JniInit { *; }

[FlorentNogema]

@davidliu @cloudwebrtc You may want to add a consumer-rules.pro file to the aar, as crashes occur consistently when R8 is enabled.