Unexpected Behavior with Spring Boot's @Transactional in Asynchronous Methods
I'm performance testing and I'm having trouble with Quick question that's been bugging me - I'm experiencing unexpected behavior when using Spring Boot's `@Transactional` annotation in combination with asynchronous method execution... I have a service class where I'm trying to save an entity to the database and then call another method asynchronously to update some related records. However, the transaction doesn't seem to commit before the async method is executed, leading to stale data being read in the async method. Here's a simplified version of my code: ```java @Service public class MyService { @Autowired private MyRepository myRepository; @Async @Transactional public void saveEntityAndUpdateAsync(MyEntity entity) { myRepository.save(entity); updateRelatedRecords(entity.getId()); // This method is called asynchronously } public void updateRelatedRecords(Long entityId) { // This method reads data related to the entityId List<RelatedEntity> relatedEntities = relatedRepository.findByEntityId(entityId); // Processing related entities... } } ``` When I run this code, the `updateRelatedRecords` method sometimes sees an empty list or stale data related to the entity, even when the entity was just saved. I've also tried using `@Transactional(propagation = Propagation.REQUIRES_NEW)` on the async method, but that doesn't seem to resolve the issue either. I was under the impression that methods annotated with `@Async` run in a separate thread and that the transaction should commit before the async method executes. However, it appears that the transaction is still open while the async method is being processed. I also confirmed that my `@EnableAsync` annotation is set up correctly in my main application class. Is there a way to ensure that the transaction commits before the asynchronous method begins, or is there a better design pattern I should be using in this scenario? I'm coming from a different tech stack and learning Java. I'm working on a CLI tool that needs to handle this. I'd be grateful for any help. The project is a microservice built with Java. Any feedback is welcome! I'm working in a Windows 10 environment.