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@Scheduled methods in @Lazy beans are not scheduled [SPR-17587] #22119

spring-projects-issues opened this issue Dec 10, 2018 · 1 comment


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@spring-projects-issues spring-projects-issues commented Dec 10, 2018

Silvio Assunção Junior opened SPR-17587 and commented

The issue #17470 was not resolved,  the problem continue

I checked the code of ScheduledAnnotationBeanPostProcessor and the tasks will registered on method postProcessAfterInitialization, but lazy Beans it is not created or initialized, than Beans with @Scheduled and @Lazy does not work correctly

The Schedule will be registered only if I will use the Bean (Force a creation)

Other guys with the same problem

Affects: 4.3.18

Reference URL: #17470

Issue Links:

  • #17470 @Scheduled methods in @Lazy beans are not scheduled
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@spring-projects-issues spring-projects-issues commented Dec 10, 2018

Juergen Hoeller commented

This works as designed: @Scheduled will only be processed on beans while they are 'alive', i.e. after creation and before destruction of each individual bean instance. For lazy-init singletons, this lifecycle only starts once they have actually been created.

If you want a singleton bean's scheduled methods to be called from startup onwards, simply don't declare it as lazy. If you want some backend state to only be created once actually called, factor it out to a separate bean that your @Scheduled bean refers to.

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