ScheduledAnnotationBeanPostProcessor does not support Duration syntax [SPR-15455]

[spring-projects-issues]

Misagh Moayyed opened SPR-15455 and commented

The ScheduledAnnotationBeanPostProcessor component is not able to parse and support the duration syntax. (PT20S).

In order to support this, one may have to configure a StringValueResolver on ScheduledAnnotationBeanPostProcessor but there is no clear path to how that might be injected into ScheduledAnnotationBeanPostProcessor. Given how SchedulingConfiguration creates the ScheduledAnnotationBeanPostProcessor bean, it seems like the StringValueResolver instance is always hardcoded.

Received error is:

Initialization of bean failed; nested exception is java.lang.IllegalStateException: Encountered invalid @Scheduled method 'run': Invalid initialDelayString value "PT10S" - cannot parse into integer>

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Affects: 4.3.7

Issue Links:

• StringToLocaleConverter should allow BCP 47 values [SPR-16188] #20736 StringToLocaleConverter should allow BCP 47 values
• @DateTimeFormat support for YearMonth, MonthDay, Year [SPR-14839] #19405 @DateTimeFormat support for YearMonth, MonthDay, Year

Referenced from: commits 13c7354

[spring-projects-issues]

Juergen Hoeller commented

This makes sense in the context of Spring Framework 5.0 in particular where we provide deeper integration with Java 8 across the framework. ScheduledAnnotationBeanPostProcessor leniently accepts number values as well as java.time.Duration compliant specifications now.