[Android] Send Native Crash reports with empty stacktraces for OS 11 by Copilot · Pull Request #934 · bitdriftlabs/capture-sdk

Copilot · 2026-04-08T21:41:10Z

What

Resolves BIT-7817

Adds support for generating native-crash reports on Android API 30 without stacktraces when ApplicationExitInfo.getTraceInputStream() returns null, avoiding silently dropping those crashes.

Will rely on status from AppExit which is set here

Verification

With OS 11 emulator trigger random native crash on gradle-test-app

Trigger same crash NATIVE_CAPTURE_DESTROY_CRASH on both OS levels

CHANGELOG.md's "Unreleased" section has been updated, if applicable.

Copilot

Pull request overview

Adds support for generating “skeleton” native-crash reports on Android API 30 when ApplicationExitInfo.getTraceInputStream() returns null, avoiding silently dropping those crashes.

Changes:

Make processAppExitReport(..., traceInputStream) nullable through IIssueReporterProcessor/IssueReporterProcessor.
Update IssueReporter to always invoke .use {} on the (nullable) trace stream and forward it to the processor.
Add NativeCrashProcessor fallback to build a minimal native-crash Report when tombstone data is unavailable, plus a regression test and changelog entry.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/IssueReporter.kt	Routes app-exit processing through a single `.use {}` path that can forward a `null` stream.
platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IIssueReporterProcessor.kt	Updates API contract to accept a nullable trace stream (defaulting to `null`).
platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessor.kt	Propagates nullable stream into native crash processing and ANR processing path.
platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/NativeCrashProcessor.kt	Generates a skeleton native crash report when tombstone stream is `null`.
platform/jvm/capture/src/test/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessorTest.kt	Adds test coverage for the new skeleton-report behavior.
CHANGELOG.md	Documents the API-30 native-crash reporting fix.

Comments suppressed due to low confidence (1)

platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessor.kt:117

traceInputStream is now nullable, but the ANR branch passes it directly to processAndPersistANR(stream: InputStream, ...), which requires a non-null stream. This is a compile-time type mismatch (and would also be a runtime issue if forced). Consider requiring a non-null stream when fatalIssueType == ReportType.AppNotResponding (e.g., val stream = requireNotNull(traceInputStream) with a clear error/log + early return) while keeping null allowed for native crashes.

        traceInputStream: InputStream?,
    ) {
        runCatching {
            if (fatalIssueType == ReportType.AppNotResponding) {
                streamingReportsProcessor.processAndPersistANR(
                    traceInputStream,
                    timestamp,

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...jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IIssueReporterProcessor.kt

...rm/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/NativeCrashProcessor.kt

github-actions · 2026-04-08T22:30:17Z

Size Comparison Report (x86_64)

Metric	APK (KB)	SO (KB)
Baseline	3406	1280
Current	3411	1280
Difference	5	0

APK size increased by 5 KB. SO size unchanged.

Copilot · 2026-04-08T22:30:42Z

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

dl.google.com
- Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED -Xmx2048M -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.14.3-bin/cv11ve7ro1n3o1j4so8xd9n66/gradle-8.14.3/lib/gradle-daemon-main-8.14.3.jar (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

...rm/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/NativeCrashProcessor.kt

.../jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessor.kt

murki · 2026-04-08T22:53:16Z

@copilot apply changes based on the comments in this thread

Copilot · 2026-04-08T22:56:48Z

@copilot apply changes based on the comments in this thread

Removed the = null default from traceInputStream in IIssueReporterProcessor so callers must pass it explicitly. All existing call sites already pass it explicitly. See 64ccb05.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

dl.google.com
- Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED -Xmx2048M -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.14.3-bin/cv11ve7ro1n3o1j4so8xd9n66/gradle-8.14.3/lib/gradle-daemon-main-8.14.3.jar (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Copilot

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/NativeCrashProcessor.kt:206

description is nullable, but signalName.ifEmpty { description } requires a non-null fallback string. As written, this won’t compile (or would risk passing null into createString). Use a non-null default (e.g., description ?: "Native crash") for the empty-signal case so the error name/reason is always a valid string.

        tombstone: Tombstone,
        frameOffsets: IntArray,
    ): Int {

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.../capture/src/test/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessorTest.kt

Copilot

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

.../jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessor.kt

platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/IssueReporter.kt

...rm/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/NativeCrashProcessor.kt

CHANGELOG.md

github-actions · 2026-04-08T23:14:52Z

Android Benchmark Results

Device: PR: Emulator - Android SDK built for x86_64 (API 31) | main: Emulator - Android SDK built for x86_64 (API 31)

Note: Benchmarks run on emulator. Results may vary between runs and may differ from physical devices.

Allocations

Test	PR	main	Δ
logHttpNetworkLog50FieldsAndHeadersAndFieldProviders	923	924	-0.1%
logNotMatched5000Fields	10	10	0.0%
logNotMatchedNoFields	1	1	0.0%
trackSpansWithFields	140	140	0.0%
trackSpansWithoutFields	55	55	0.0%
webViewBridgeBridgeReady	61	61	0.0%
webViewBridgeCustomLog	66	66	0.0%
webViewBridgeInvalidJson	38	38	0.0%
webViewBridgeWebVitalCLS	177	178	-0.6%

Timing

Test	PR	main	Δ
logHttpNetworkLog50FieldsAndHeadersAndFieldProviders	238.57 us	235.02 us	+1.5%
logNotMatched5000Fields	2.44 ms	2.44 ms	0.0%
logNotMatchedNoFields	461 ns	469 ns	-1.7%
trackSpansWithFields	488.83 us	473.52 us	+3.2%
trackSpansWithoutFields	7.96 us	7.84 us	+1.5%
webViewBridgeBridgeReady	7.97 us	8.16 us	-2.3%
webViewBridgeCustomLog	9.10 us	9.26 us	-1.7%
webViewBridgeInvalidJson	164.82 us	120.55 us	+36.7%
webViewBridgeWebVitalCLS	21.01 us	20.08 us	+4.7%

murki · 2026-04-09T01:19:54Z

@copilot apply changes based on the comments in this thread

Copilot · 2026-04-09T01:22:42Z

@copilot apply changes based on the comments in this thread

Applied all changes from that review thread in 217848b:

Added signalNumber: Int = 0 default to IssueReporterProcessor override for backward compatibility with existing call sites.
Moved .use {} outside the convertExitReasonToFbsReportType call in IssueReporter so the stream is always closed even when the exit reason is unrecognized.
Added ?: "Native crash" fallback in createErrorOffset to prevent null being passed to FlatBufferBuilder.createString().
Reworded CHANGELOG entry to clarify this is specific to native crash reports without tombstone data on API 30.

murki · 2026-04-09T01:37:34Z

@copilot after your changes the build broke with the following error, go fix it:

e: file:///home/runner/work/capture-sdk/capture-sdk/platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/reports/processor/IssueReporterProcessor.kt:114:29 An overriding function is not allowed to specify default values for its parameters
Finished executing kotlin compiler using DAEMON strategy

> Task :capture:compileReleaseKotlin FAILED

Copilot · 2026-04-09T01:40:39Z

@copilot after your changes the build broke with the following error, go fix it:
e: file:///home/runner/work/capture-sdk/capture-sdk/platform/jvm/capture/src/main/kotlin/io/bitdrift/capture/repo...

Removed = 0 default from the overriding signalNumber parameter in IssueReporterProcessor (Kotlin doesn't allow default values on override parameters) and updated all test call sites to pass signalNumber = 0 explicitly. See b1075f5.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

dl.google.com
- Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED -Xmx2048M -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.14.3-bin/cv11ve7ro1n3o1j4so8xd9n66/gradle-8.14.3/lib/gradle-daemon-main-8.14.3.jar (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

Configure Actions setup steps to set up my environment, which run before the firewall is enabled
Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Co-Authored-By: murki <216735+murki@users.noreply.github.com>

Copilot AI assigned Copilot and murki Apr 8, 2026

Copilot started work on behalf of murki April 8, 2026 21:41 View session

Copilot AI changed the title ~~[WIP] Implement skeleton crash reports without stack traces for native crashes~~ BIT-7817: Skeleton crash reports for native crashes on API level 30 Apr 8, 2026

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Initial plan

99243d7

Co-Authored-By: murki <216735+murki@users.noreply.github.com>

FranAguilera force-pushed the copilot/implement-skeleton-crash-reports branch from b1075f5 to 90742b7 Compare April 9, 2026 10:00

FranAguilera changed the title ~~BIT-7817: Skeleton crash reports for native crashes on API level 30~~ [Android] Send Native Crash reports with empty stacktraces below OS 12 Apr 9, 2026

FranAguilera force-pushed the copilot/implement-skeleton-crash-reports branch 4 times, most recently from 2644123 to 6686aa2 Compare April 9, 2026 11:19

Fran fixes

5bb89e5

FranAguilera force-pushed the copilot/implement-skeleton-crash-reports branch from 6686aa2 to 5bb89e5 Compare April 9, 2026 11:22

FranAguilera changed the title ~~[Android] Send Native Crash reports with empty stacktraces below OS 12~~ [Android] Send Native Crash reports with empty stacktraces for OS 11 Apr 9, 2026

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Copilot AI commented Apr 8, 2026

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murki commented Apr 8, 2026

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Android Benchmark Results

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murki commented Apr 9, 2026

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Copilot AI commented Apr 8, 2026 •

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