asmhatreandClaude Sonnet 5
c1b40b0db9
Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Gth99spB1CzQmBFofXmU4Z
14 lines
865 B
Markdown
14 lines
865 B
Markdown
# kafka4-migration: Spring Kafka 3 to 4 on Spring Boot 3.5 to 4.1
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Companion code for the ankurm.com post "Spring Kafka 3 to 4 Migration Guide".
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| Folder | What it is |
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| `legacy/` | Producer, `@KafkaListener` and an `@EmbeddedKafka` test on Boot 3.5.16 / Spring Kafka 3.3.16 / kafka-clients 3.9.2 (JDK 21), using the Jackson 2 `JsonSerializer` |
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| `migrated/` | The same app on Boot 4.1.1 / Spring Kafka 4.1.1 / kafka-clients 4.2.1 (JDK 25), using `spring-boot-starter-kafka` and `JacksonJsonSerializer` |
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| `scripts/run-all.sh` | Builds the intermediate stages from `legacy/` and regenerates every file in `output/` |
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| `output/` | Transcripts for each stage |
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Spring Kafka 4.1.1 is the latest GA; 4.2.0-M1 and 4.2.0-M2 are milestones and are not tested here.
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No external broker is needed: the tests use `@EmbeddedKafka`. Tested on 28 September 2026.
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