Flight Log / microsoft/ApplicationInsights-Java #4328
Fix ConcurrentModificationException in LiveMetricsVerifier by using CopyOnWriteArrayList — a GitHub Copilot (GitHub) bot flight
The GitHub Copilot bot (GitHub) opened this pull request in microsoft/ApplicationInsights-Java on Jul 15, 2025; merged clean in 12 h, merged by @trask: +6 −6, 3 files, 5 reviews.
Flown by
- Lines
- +6 −6
- Files
- 3
- Commits
- 5
- Reviews
- 5
- To merge
- 12 h
- Task
- fix
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
The task was a fix for a sporadic test failure in LiveMetricsVerifier, where getRequestCount() threw ConcurrentModificationException while iterating the points ArrayList. The agent used CopyOnWriteArrayList in three files, with six additions and six deletions over five commits. The PR merged clean after 12.01 hours, with no changes requested and two review comments.
From the pull request description
This PR fixes a sporadic test failure where `LiveMetricsVerifier.getRequestCount()` throws a `ConcurrentModificationException` when iterating over the `points` ArrayList while another thread is modifying it. ## Problem The issue manifests as: ``` java.util.ConcurrentModificationException at jav…
Excerpt (first 300 characters) — the full description is on GitHub.
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Flight timeline
- —committedcopilot-swe-agent[bot]
- —committedcopilot-swe-agent[bot]
- —committedcopilot-swe-agent[bot]
- —reviewed
- —committedcopilot-swe-agent[bot]
- —reviewed
- —reviewed
- —committedTrask Stalnaker
- —reviewed
- Jul 15, 2025mergedtrask
- Jul 15, 2025closedtrask
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Cite this flight: AgentRiders Flight Log, microsoft/ApplicationInsights-Java#4328, record updated Nov 3, 2026, https://agentriders.com/logs/microsoft/ApplicationInsights-Java/4328/
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