micrometer-metrics/tracing

AbstractObservationAwareSpanThreadLocalAccessorTests#onlyReactorPropagatesBaggage [false] is flaky for BraveConfig

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#1,082 opened on Jun 5, 2025

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help wantedtype: task

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Description

org.opentest4j.AssertionFailedError: 
expected: "baggage2"
 but was: null
	at app//io.micrometer.tracing.test.contextpropagation.AbstractObservationAwareSpanThreadLocalAccessorTests.onlyReactorPropagatesBaggage(AbstractObservationAwareSpanThreadLocalAccessorTests.java:334)

This happens quite often on CI, which requires a lot of manually re-running of jobs to get the CI to pass.

Contributor guide

Research direction
Examine the test setup and the Reactor pipeline to understand why baggage2 is null. Check for race conditions or missing context propagation.
Tech stack
java
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaTesting
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65