Repository navigation
accessibility.rs: pending Java exceptions are not cleared #40
Description
Priority: P2 (robustness). Code audit of gpui-mobile src/android/accessibility.rs (fork main 4dd00ad, upstream PR longbridge/gpui-mobile#25).
It calls Java through accesskit_android's jni 0.21 API (call_method for isEnabled, getContext, getSystemService, getWindow, getDecorView, findViewById; new_string; new_global_ref). On a Java exception these return Err and leave the exception pending; nothing clears it, so the next JNI call on the render thread (shared with the jni 0.22 code, which clears through or_clear) runs with an exception pending, which is undefined behaviour and aborts under CheckJNI.
Delegate set off the UI thread: checked, InjectingAdapter::new already posts setAccessibilityDelegate to the UI thread; only the read-only lookups run on the render thread.
Activity
[-]accessibility.rs: pending Java exceptions not cleared; delegate set off the UI thread[/-][+]accessibility.rs: pending Java exceptions are not cleared[/+]Bombatomica64 commentedon Oct 9, 2026
Fixed in gpui-mobile
android-a11y-clear-exceptions(#43): pending exceptions are described and cleared after the host-view lookups,isEnabledand each tree update. Code fix only; no throwing case was reproduced on the device. TalkBack still works on the build.