Attachments duplication

[codelimit]

Integration

sentry-android

Build System

Gradle

AGP Version

9.5.1

Proguard

Enabled

Other Error Monitoring Solution

No

Version

8.43.2

Steps to Reproduce

For sentry_samples_android app

1. Declare native function in io/sentry/samples/android/NativeSample.java
   public static native void captureException();
2. Implement native function in native-sample.cpp

JNIEXPORT void JNICALL Java_io_sentry_samples_android_NativeSample_captureException(
    JNIEnv *env, jclass cls) {
  sentry_value_t event = sentry_value_new_event();
  sentry_value_t exc = sentry_value_new_exception("Exception", "Error message.");
  sentry_value_set_stacktrace(exc, NULL, 0);
  sentry_event_add_exception(event, exc);
  sentry_capture_event(event);
}

3. Add button to trigger the method in io/sentry/samples/android/MainActivity.kt:

  item {
    SentryTraced("capture_exception_native") {
      OutlinedButton(
        onClick = {
          NativeSample.captureException();
        },
        modifier = Modifier,
      ) {
        Text("Capture Exception Native", maxLines = 2, overflow = TextOverflow.Ellipsis)
      }
    }
  }

4. Build and run app, click "Capture Exception Native"
5. Check event's attachments

Expected Result

Attachments are not duplicated

Actual Result

Attachment duplication:

[linear-code]

JAVA-559

[codelimit]

As I understood, sentry native captures the exception, dumps the envlope to outbox directory. Then, EnvelopeFileObserver picks up and process envelope. Envelope has two items: event and attachment. When OutboxSender process event item, it enriches it with attachment from global scope (this is the first attachment instance), and then, sends second item, which is original attachment from sentry native envelope (second attachment instance).

[codelimit]

The reproduction is even simplier: just click "Native Capture" button in "sentry samples android" app and check the issue page. It has two attachments.