[runningcode]

PR Stack (Sample Tests)

• test: [Sample Tests 1] Add an in-process MockSentryServer #6266 (base: main)
• test: [Sample Tests 2] Share the system-test envelope matchers #6267 (base: test: [Sample Tests 1] Add an in-process MockSentryServer #6266)
• test(logback): [Sample Tests 3] Move the logback system test into the module #6268 (base: test: [Sample Tests 2] Share the system-test envelope matchers #6267)
• test(otel): [Sample Tests 4] Add a smoke test for the built agent #6269 (base: test: [Sample Tests 2] Share the system-test envelope matchers #6267)
• test(otel): [Sample Tests 5] Test a Spring Boot app under the agent #6271 (base: test(otel): [Sample Tests 4] Add a smoke test for the built agent #6269)
• test(spring-boot): [Sample Tests 6] Move the Boot 3 Person test into the module #6292 (base: test(otel): [Sample Tests 5] Test a Spring Boot app under the agent #6271)
• test(spring-boot): [Sample Tests 7] Move the Boot 3 tracing and HTTP client tests #6293 (base: test(spring-boot): [Sample Tests 6] Move the Boot 3 Person test into the module #6292)
• test(spring-boot): [Sample Tests 8] Move the Boot 3 cache, metrics and flag tests #6294 (base: test(spring-boot): [Sample Tests 7] Move the Boot 3 tracing and HTTP client tests #6293)
• test(spring-boot): [Sample Tests 9] Move the Boot 3 GraphQL tests into the module #6295 (base: test(spring-boot): [Sample Tests 8] Move the Boot 3 cache, metrics and flag tests #6294)
• test(spring-boot): [Sample Tests 10] Move the Boot 3 Kafka test into the module #6296 (base: test(spring-boot): [Sample Tests 9] Move the Boot 3 GraphQL tests into the module #6295)
• test(spring-boot): [Sample Tests 11] Move the Boot 4 sample's tests into the module #6297 (base: test(spring-boot): [Sample Tests 10] Move the Boot 3 Kafka test into the module #6296)
• test(spring-boot): [Sample Tests 12] Move the Boot 4 Kafka test into the module #6298 (base: test(spring-boot): [Sample Tests 11] Move the Boot 4 sample's tests into the module #6297)
• test(spring-boot): [Sample Tests 13] Move the Boot 2 sample's tests into the module #6299 (base: test(spring-boot): [Sample Tests 12] Move the Boot 4 Kafka test into the module #6298)
• test(spring-boot): [Sample Tests 14] Move the Boot 2 GraphQL and Kafka tests #6300 (base: test(spring-boot): [Sample Tests 13] Move the Boot 2 sample's tests into the module #6299)
• test(spring-boot): [Sample Tests 16] Replace the log4j2 Boot samples' system tests with a Log4j2 suite #6306 (base: test(spring-boot): [Sample Tests 14] Move the Boot 2 GraphQL and Kafka tests #6300)
• test(spring-boot): [Sample Tests 17] Move the Boot 3 WebFlux sample's tests into the module #6308 (base: test(spring-boot): [Sample Tests 16] Replace the log4j2 Boot samples' system tests with a Log4j2 suite #6306)
• test(spring-boot): [Sample Tests 18] Move the Boot 4 WebFlux sample's tests into the module #6310 (base: test(spring-boot): [Sample Tests 17] Move the Boot 3 WebFlux sample's tests into the module #6308)
• test(spring-boot): [Sample Tests 19] Move the Boot 2 WebFlux sample's tests into the module #6311 (base: test(spring-boot): [Sample Tests 18] Move the Boot 4 WebFlux sample's tests into the module #6310)
• test(spring-boot): [Sample Tests 20] Move the Boot 3 OTel no-agent sample's tests #6312 (base: test(spring-boot): [Sample Tests 19] Move the Boot 2 WebFlux sample's tests into the module #6311)
• test(spring-boot): [Sample Tests 21] Move the Boot 4 OTel no-agent sample's tests #6313 (base: test(spring-boot): [Sample Tests 20] Move the Boot 3 OTel no-agent sample's tests #6312)
• test(spring-boot): [Sample Tests 22] Move the Boot 2 OTel no-agent sample's tests #6314 (base: test(spring-boot): [Sample Tests 21] Move the Boot 4 OTel no-agent sample's tests #6313)
• test(spring-boot): [Sample Tests 23] Port the Boot 3 OTel agent sample's Person, tracing and Todo tests #6315 (base: test(spring-boot): [Sample Tests 22] Move the Boot 2 OTel no-agent sample's tests #6314)
• test(spring-boot): [Sample Tests 24] Port the rest of the Boot 3 OTel agent sample's tests #6316 (base: test(spring-boot): [Sample Tests 23] Port the Boot 3 OTel agent sample's Person, tracing and Todo tests #6315)
• test(spring-boot): [Sample Tests 25] Move the Boot 4 OTel agent sample's tests #6317 (base: test(spring-boot): [Sample Tests 24] Port the rest of the Boot 3 OTel agent sample's tests #6316)
• test(spring-boot): [Sample Tests 26] Move the Boot 2 OTel agent sample's tests #6318 (base: test(spring-boot): [Sample Tests 25] Move the Boot 4 OTel agent sample's tests #6317)
• test(spring): [Sample Tests 27] Move the Spring jakarta WAR sample's tests into the module #6319 (base: test(spring-boot): [Sample Tests 26] Move the Boot 2 OTel agent sample's tests #6318)
• test(spring): [Sample Tests 28] Move the Spring 7 WAR sample's tests into the module #6320 (base: test(spring): [Sample Tests 27] Move the Spring jakarta WAR sample's tests into the module #6319)
• test(spring): [Sample Tests 29] Move the Spring WAR sample's tests into the module #6321 (base: test(spring): [Sample Tests 28] Move the Spring 7 WAR sample's tests into the module #6320)
• test(log4j2): [Sample Tests 30] Move the log4j2 sample's system test into sentry-log4j2 #6322 (base: test(spring): [Sample Tests 29] Move the Spring WAR sample's tests into the module #6321)
• test(jul): [Sample Tests 31] Move the JUL sample's system test into sentry-jul #6323 (base: test(log4j2): [Sample Tests 30] Move the log4j2 sample's system test into sentry-log4j2 #6322)
• test: [Sample Tests 32] Add end-to-end tests of the core APIs and a profiled transaction #6324 (base: test(jul): [Sample Tests 31] Move the JUL sample's system test into sentry-jul #6323)
• test(kafka): [Sample Tests 34] Add an end-to-end test of the raw Kafka client's tracing #6326 (base: test: [Sample Tests 32] Add end-to-end tests of the core APIs and a profiled transaction #6324)
• test(opentelemetry): [Sample Tests 35] Add an end-to-end test of the agentless OpenTelemetry setup #6327 (base: test(kafka): [Sample Tests 34] Add an end-to-end test of the raw Kafka client's tracing #6326)
• test(opentelemetry): [Sample Tests 36] Add an end-to-end test of the OTLP event linking #6328 (base: test(opentelemetry): [Sample Tests 35] Add an end-to-end test of the agentless OpenTelemetry setup #6327)
• test(spring-boot): [Sample Tests 37] Move the Boot 4 OTLP sample's tests into the module #6329 (base: test(opentelemetry): [Sample Tests 36] Add an end-to-end test of the OTLP event linking #6328)
• test: [Sample Tests 38] Remove the system-test runner and its Python mock server #6330 (base: test(spring-boot): [Sample Tests 37] Move the Boot 4 OTLP sample's tests into the module #6329)
• test: [Sample Tests 39] Remove the io.sentry.systemtest plugin and sentry-system-test-support #6331 (base: test: [Sample Tests 38] Remove the system-test runner and its Python mock server #6330)
• docs: [Sample Tests 40] Describe the in-module end-to-end tests instead of the system tests #6332 (base: test: [Sample Tests 39] Remove the io.sentry.systemtest plugin and sentry-system-test-support #6331)
• test(spring-boot): [Sample Tests 41] Drop Spring Boot 2.4 to 2.6 from the test matrix #6381 (base: docs: [Sample Tests 40] Describe the in-module end-to-end tests instead of the system tests #6332)
• test(spring): [Sample Tests 42] Run each Spring Boot matrix version as its own Gradle task #6382 (base: test(spring-boot): [Sample Tests 41] Drop Spring Boot 2.4 to 2.6 from the test matrix #6381)
• test(spring): [Sample Tests 43] Compile the Spring modules against their oldest Spring Boot version #6383 (base: test(spring): [Sample Tests 42] Run each Spring Boot matrix version as its own Gradle task #6382)

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📜 Description

Adds SentryEndToEndTest to sentry. It ports the core part of sentry-samples-console's system test, which ran the sample's JAR against the Python mock server. The test reports through the APIs an app uses without integrations, and checks what reaches MockSentryServer over the real HTTP transport:

• a message at the scope's FATAL level and one at an explicit WARNING level;
• an exception with its feature flag;
• an event with a fingerprint and the DEBUG level;
• a breadcrumb from an event processor, and none from the one a beforeBreadcrumb callback rejects;
• ten events in a row, all of which arrive (the sample accepted five);
• a transaction with a child span;
• metrics, with the scope's attributes.

It also adds ContinuousProfilerEndToEndTest to sentry-async-profiler, which ports the sample's profiling check. A sampled transaction with the TRACE profile lifecycle starts the async profiler, and the test checks that the profile chunk reaches MockSentryServer with the transaction's profiler ID.

The traces path is in the temp dir. The profiler rejects a traces path with a . anywhere in its absolute form, as #6319 found, so a relative path fails in a checkout whose path has a dot in it.

The sample's test also runs a Kafka round trip. That goes to sentry-kafka in the next PR, which retires the sample.

The test's name avoids …IntegrationTest, which in this module means a test of an SDK Integration.

After a coverage audit against the sample's tests:

• The exception check also asserts its type, RuntimeException, as the sample did.

💡 Motivation and Context

Core's unit tests mock the transport. SentryEndToEndTest is the one place where core's own APIs, with no framework integration, go through serialization and HTTP to a server. It runs in 0.2 seconds.

sentry-async-profiler's tests mock the transport and the profiler's surroundings. ContinuousProfilerEndToEndTest runs the real profiler and sends the chunk over HTTP, in under a second.

💚 How did you test it?

• Both tests pass.
• Expecting a different fingerprint makes SentryEndToEndTest fail.
• Expecting the transaction to have no profiler ID makes ContinuousProfilerEndToEndTest fail.
• In a checkout whose path contains /.claude/, 16 of JavaContinuousProfilerTest's tests fail with or without this PR: the same dot check disables profiling, and one test expects , as the rejected character and gets .. In CI, whose checkout path has no dot, they pass.

📝 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.
• Public API changes reviewed by another Mobile SDK team member or implemented according to the develop docs spec.

🔮 Next steps

The console sample's Kafka round trip into sentry-kafka, which retires the sample.

#skip-changelog

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