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Add order-fulfillment module: Spring Modulith 2.1 boundary enforcement, events, generated docs

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asmhatre
2026-10-03 18:45:37 +00:00
commit 866eceed0a
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order-fulfillment/output/05-redundant-transactional-failure.txt
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at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:385) ~[surefire-booter-3.2.5.jar:3.2.5]
at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162) ~[surefire-booter-3.2.5.jar:3.2.5]
at org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:507) ~[surefire-booter-3.2.5.jar:3.2.5]
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:495) ~[surefire-booter-3.2.5.jar:3.2.5]
Caused by: java.lang.IllegalStateException: @TransactionalEventListener method must not be annotated with @Transactional unless when declared as REQUIRES_NEW or NOT_SUPPORTED: public void com.ankurm.modulithdemo.inventory.InventoryManagement.on(com.ankurm.modulithdemo.order.OrderPlaced)
at org.springframework.transaction.annotation.RestrictedTransactionalEventListenerFactory.createApplicationListener(RestrictedTransactionalEventListenerFactory.java:52) ~[spring-tx-7.0.9.jar:7.0.9]
at org.springframework.context.event.EventListenerMethodProcessor.processBean(EventListenerMethodProcessor.java:187) ~[spring-context-7.0.9.jar:7.0.9]
at org.springframework.context.event.EventListenerMethodProcessor.afterSingletonsInstantiated(EventListenerMethodProcessor.java:141) ~[spring-context-7.0.9.jar:7.0.9]
... 92 common frames omitted
2026-10-03T23:49:39.346+05:30 WARN 1623 --- [order-fulfillment] [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener] to prepare test instance [com.ankurm.modulithdemo.order.OrderFulfillmentIntegrationTests@646af766]
Root cause: @ApplicationModuleListener already carries @Transactional(propagation =
REQUIRES_NEW) as a meta-annotation (confirmed by javap -v on the annotation class itself -
see the post's "how it really works underneath" section). Redeclaring a plain
@Transactional (default propagation REQUIRED) on the same method is not harmless
layering - Spring's RestrictedTransactionalEventListenerFactory refuses to even register
the listener, and the whole ApplicationContext fails to start. Fixed by deleting the
redundant @Transactional from InventoryManagement.on(OrderPlaced) and
ShippingManagement.on(StockReserved).