On .NET 9, Java exception on background thread double reports

[bruno-garcia]

SDK version 5.9.0 (latest)

Originally, when we, added this method, it was only captured via the native Android SDK. It seems at some point .NET started also capturing it.

But it's quite odd, because the one captured by .NET has no stack trace (so rather useless) And the screenshot seems to be sometime after the native one (not sure how many frames)

Managed details

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The native one has a stack trace (the Java file name and line number)

Native

{"event_id":"0a22c79162a0406a9d497c047c7335e8","project":5953206,"release":"[email protected]+1","dist":"1","platform":"java","message":"","datetime":"2025-06-01T02:20:13+00:00","tags":[["build-type","release"],["device","Pixel 5"],["device.class","2"],["device.family","Pixel"],["environment","production"],["handled","no"],["isSideLoaded","true"],["level","fatal"],["mechanism","UncaughtExceptionHandler"],["os","Android 13"],["os.name","Android"],["os.rooted","no"],["dist","1"],["release","[email protected]+1"],["user","id:2c40764ae1214a5a9c846c95dd901a87"],["server-endpoint","https://symbol-collector.services.sentry.io/"],["user-agent","Dalvik/2.1.0 (Linux; U; Android 13; Pixel 5 Build/TQ3A.230901.001)"]],"_dsc":{"environment":"production","public_key":"656e2e78d37d4511a4ea2cb3602e7a65","release":"[email protected]+1","replay_id":null,"sample_rand":"0.1005134502601192","trace_id":"3d1275b74c1c434ba7d8422f7a0c71aa","transaction":null},"_meta":{"extra":{"Metrics":{"":{"rem":[["@password:filter","s",0,10]],"len":420}}}},"_metrics":{"bytes.ingested.event":4522,"bytes.ingested.event.attachment":172661,"bytes.stored.event":6737,"bytes.stored.event.attachment":172661},"breadcrumbs":{"values":[{"timestamp":1748744405.692,"type":"navigation","category":"ui.lifecycle","level":"info","data":{"screen":"MainActivity","state":"created"}},{"timestamp":1748744406.365,"type":"navigation","category":"ui.lifecycle","level":"info","data":{"screen":"MainActivity","state":"started"}},{"timestamp":1748744406.367,"type":"navigation","category":"app.lifecycle","level":"info","data":{"state":"foreground"}},{"timestamp":1748744406.374,"type":"navigation","category":"ui.lifecycle","level":"info","data":{"screen":"MainActivity","state":"resumed"}},{"timestamp":1748744412.184,"type":"user","category":"ui.click","level":"info","data":{"view.class":"android.widget.Button","view.id":"btnUpload"}},{"timestamp":1748744412.191,"type":"default","category":"ui.event","level":"info","message":"OnUploadButtonOnClick"}]},"contexts":{"app":{"app_start_time":"2025-06-01T02:20:04.251Z","app_identifier":"io.sentry.symbolcollector.android","app_name":"Symbol 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Ideally we'd stop .NET from trying to capture this.