Claude
b81af72bc3
Companion code for "Spring Batch on Boot 4.1: Jobs, Steps, Chunk Processing and Restartability". A productImportJob configured three ways by profile against a poisoned CSV row, run as real java -jar processes (not just JUnit) so the restart story is genuine: a chunk fails and rolls back, the process exits, a brand-new JVM against the same file-based H2 database resumes at the exact next unread row (READ_COUNT 20, not 60) and completes. Findings the build pins: - StepBuilder.chunk(int, PlatformTransactionManager) still compiles in Batch 6.0.5 but returns the legacy SimpleStepBuilder; chunk(int) returns the new ChunkOrientedStepBuilder, and only the latter is used here. - Two different ExecutionContext classes now exist in two different packages (infrastructure.item vs core.repository.persistence) with different shapes. - spring-boot-starter-batch alone gives a resourceless JobRepository that forgets every JobInstance the moment the JVM exits; spring-boot-starter- batch-jdbc is what makes the restart demo possible at all, demonstrated by excluding BatchJdbcAutoConfiguration and watching a "restart" collide with the previous run's own data instead of resuming it. - A migration-guide summary claiming CommandLineJobRunner was removed in 6.0 is wrong -- javap against the real jar shows @Deprecated(forRemoval=true), not removed. - RepeatStatus moved from core.repeat to infrastructure.repeat, caught by the compiler rather than by reading docs. 11 documentation chapters, 10 captured transcripts (unit tests, javap output, and real two-JVM scenario runs), all regenerated by scripts/run-all.sh. Fixed after push: three dead docs.spring.io links in the doc chapters (readersAndWriters/* and chunk-oriented-processing/*.html paths moved when Spring Batch 6 reorganized its reference docs; corrected to the current readers-and-writers/*, processor.html and chunk-oriented-processing.html paths, verified 200 via curl before committing). Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_019DXsJ1zpikbA1MQJN6RqFA
24 lines
830 B
Plaintext
24 lines
830 B
Plaintext
# javap: CommandLineJobRunner is deprecated (forRemoval), not removed, in 6.0.5
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$ javap -verbose -cp spring-batch-core-6.0.5.jar org.springframework.batch.core.launch.support.CommandLineJobRunner | grep -A3 "^public class\|Deprecated"
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public class org.springframework.batch.core.launch.support.CommandLineJobRunner
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minor version: 0
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major version: 61
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flags: (0x0021) ACC_PUBLIC, ACC_SUPER
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--
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#503 = Utf8 Deprecated
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#504 = Utf8 RuntimeVisibleAnnotations
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#505 = Utf8 Ljava/lang/Deprecated;
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#506 = Utf8 since
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#507 = Utf8 6.0
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#508 = Utf8 forRemoval
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--
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Deprecated: true
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RuntimeVisibleAnnotations:
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0: #505(#506=s#507,#508=Z#509)
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java.lang.Deprecated(
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since="6.0"
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forRemoval=true
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)
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--
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