Self autowiring does not work for transactional beans [SPR-16645]

[spring-projects-issues]

Jon Rimmer opened SPR-16645 and commented

The ability for beans to self autowire was added in: #13096

However, this does not work if the bean to self wire is transactional, e.g. has at least one method annotated with @transactional when transactions are enabled.

See the linked GitHub project for a very simple reproduction.

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Affects: 5.0.4

Reference URL: https://github.com/jonrimmer/spring-self-autowiring-is-broken

Issue Links:

• Support @Autowired-like self injection [SPR-8450] #13096 Support @Autowired-like self injection

[spring-projects-issues]

Juergen Hoeller commented

From a quick look at your sample, it looks you're dereferencing a nested field on the self-injected service proxy: That won't work since you'll get a CGLIB proxy with uninitialized fields that you're not supposed to access on the proxy instance. You have to go through public non-final methods there which the proxy can actually intercept.

That said, why are you even dereferencing that field on the proxy to begin with? Only the service proxy itself has transactionally decorated methods: If you're calling methods on a nested delegate there, those won't be transactional in any case. Or am I missing something?

[spring-projects-issues]

Jon Rimmer commented

Ah, yes. I see now. The non-sample code was calling a method on the injected self reference, but it wasn't public, so wasn't proxied. Sorry!