PR Stack (Queue Instrumentation)

• feat(core): Queue Instrumentation #5249
• feat(core): [Queue Instrumentation 1] Add enableQueueTracing option and messaging span data conventions #5250
• feat(samples): [Queue Instrumentation 2] Add Kafka to Spring Boot 3 sample app #5253
• feat(spring-jakarta): [Queue Instrumentation 3] Add Kafka producer instrumentation #5254
• feat(spring-jakarta): [Queue Instrumentation 4] Add Kafka consumer instrumentation #5255
• feat(spring-boot-jakarta): [Queue Instrumentation 5] Add Kafka queue auto-configuration #5259
• test(samples): [Queue Instrumentation 6] Add Kafka queue system tests #5260
• feat(samples): [Queue Instrumentation 7] Add Kafka to Spring Boot 3 OTel sample apps #5265
• fix(spring-boot-jakarta): [Queue Instrumentation 8] Disable Sentry Kafka spans when OTel is active #5274
• fix(spring-jakarta): [Queue Instrumentation 9] Clean up stale ThreadLocal context in Kafka consumer interceptor #5279
• fix(spring-jakarta): [Queue Instrumentation 10] Fork root scopes and skip when OTel is active in Kafka consumer #5280
• fix(spring-jakarta): [Queue Instrumentation 11] Guard entire span lifecycle in Kafka producer interceptor #5281
• fix(spring-jakarta): [Queue Instrumentation 12] Add Kafka retry count attribute #5282
• fix(spring-jakarta): [Queue Instrumentation 13] Align enqueue time with Python #5283
• ref(kafka): [Queue Instrumentation 14] Extract sentry-kafka module #5288
• feat(samples): [Queue Instrumentation 15] Add opt-in Kafka console e2e coverage #5289
• fix(test): [Queue Instrumentation 16] Enable Kafka profile in system runner #5291
• feat(kafka): [Queue Instrumentation 17] Add manual consumer tracing helper #5312
• ref(samples): [Queue Instrumentation 18] Move Kafka sources into queues.kafka package #5313
• ref(samples): [Queue Instrumentation 19] Drop Kafka auto-config exclude from Spring Boot samples #5314
• ref(kafka): [Queue Instrumentation 20] Log Kafka instrumentation failures #5315
• fix(kafka): [Queue Instrumentation 21] Preserve third-party baggage on Kafka producer records #5316
• test(spring-boot-jakarta): [Queue Instrumentation 22] Cover spring-kafka class-absence gate #5318
• fix(spring-jakarta): [Queue Instrumentation 23] Install Kafka context before trace setup #5319
• fix(kafka): [Queue Instrumentation 24] Read all baggage headers on consumers #5320
• fix(kafka): [Queue Instrumentation 25] Finish producer spans on failures #5321
• fix(kafka): [Queue Instrumentation 26] Mark producer interceptor experimental #5322
• fix(spring-jakarta): [Queue Instrumentation 27] Delegate Kafka record thread-state hooks #5323
• test(samples): [Queue Instrumentation 28] Cover OTel Jakarta Kafka coexistence in CI #5324
• fix(spring-jakarta): [Queue Instrumentation 29] Set body_size on Spring Kafka consumer transaction #5325
• test(spring-jakarta): [Queue Instrumentation 30] Cover Kafka record interceptor lifecycle edge cases #5327
• fix(kafka): [Queue Instrumentation 31] Write enqueued-time header as plain decimal #5328
• test(spring-boot-jakarta): [Queue Instrumentation 32] Filter OTel in Kafka auto-config negative tests #5330
• fix(otel): [Queue Instrumentation 34] Fix OTel messaging span mapping correctness #5337
• fix(kafka): [Queue Instrumentation 35] Inject trace headers without real active span #5338
• fix(kafka): [Queue Instrumentation 36] Avoid dropping customer interceptor #5341
• fix(spring-boot-jakarta): [Queue Instrumentation 37] Skip Kafka autoconfig for OTel agent #5343
• fix(spring-jakarta): [Queue Instrumentation 38] Close leaked Kafka interceptor scope #5345
• fix(test): [Queue Instrumentation 39] Remove stale Kafka container before startup #5347
• feat(spring): [Queue Instrumentation 40] Add Spring Boot 4 Kafka tracing #5348

📜 Description

Clean up stale Kafka system-test containers before starting the local broker.

SystemTestRunner.start_kafka_broker() now force-removes the named container up front, even when the current runner instance did not start the previous broker. stop_kafka_broker() stays ownership-aware and still only tears down brokers started by the current run.

💡 Motivation and Context

A review comment on the original Kafka console sample PR pointed out that interrupted runs could leave behind a stopped container named sentry-java-system-test-kafka. The runner tried to clean that up before startup, but the cleanup path returned early whenever kafka_started_by_runner was false, so the next docker run --name ... failed with a container-name conflict.

This change fixes the stale-container path without changing the reuse behavior for an already running broker on localhost:9092.

I also looked into replacing Redpanda with the official Apache Kafka image. That is possible, but it is not a drop-in swap because the current startup command is Redpanda-specific, so I left that as a separate follow-up.

💚 How did you test it?

• Ran ./gradlew spotlessApply apiDump
• Ran python3 -m py_compile test/system-test-runner.py
• Ran a mocked Python verification that start_kafka_broker() now issues docker rm -f sentry-java-system-test-kafka before docker run

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

If we want the most official broker image for these tests, switch the runner to apache/kafka in a separate PR.

#skip-changelog

⚠️ Merge this PR using a merge commit (not squash). Only the collection branch is squash-merged into main.