Auto-configure JobRegistryBeanPostProcessor with EnableBatchProcessing and DefaultBatchConfiguration

[fmbenhassine]

As of v4.3, @EnableBatchProcessing auto-configures a JobRegistry in the application context. So as a user, I still need to create a JobRegistryBeanPostProcessor bean myself to populate the registry:

@Bean
public JobRegistryBeanPostProcessor jobRegistryBeanPostProcessor(JobRegistry jobRegistry) {
    JobRegistryBeanPostProcessor postProcessor = new JobRegistryBeanPostProcessor();
    postProcessor.setJobRegistry(jobRegistry);
    return postProcessor;
}

Since the JobRegistry is already created by @EnableBatchProcessing, this bean post processor could also be created by the annotation with the registry already set on it.

This also should apply to the programmatic way of configuration through DefaultBatchConfiguration introduced in v5.

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References:

• https://stackoverflow.com/questions/76694233
• https://stackoverflow.com/questions/76512472

[fmbenhassine]

Resolved in 66e0b9a.

[fmbenhassine]

Re-opening this issue as it introduced a (late) unexpected breaking change in Boot for v3.0.

Will be revisited in Batch 5.1 / Boot 3.2.