Thread locked with optimize-contexts and @Startup bean

[lucaspouzac]

Describe the bug

Since migration to quarkus 3.6.x, our application don't startup because a thread is locked.

It's related to this feature : #36626

If we set quarkus.arc.optimize-contexts=false, the application start correctly.

Expected behavior

If we set quarkus.arc.optimize-contexts=true, the application start correctly.

Actual behavior

No response

How to Reproduce?

Attached, an application with 2 tests.

• 1 test that works correctly: OptimizeContextsDisabledTest
• 1 test that fails: OptimizeContextsEnabledTest

optimize-contexts.tar.gz

Output of uname -a or ver

No response

Output of java -version

No response

Quarkus version or git rev

No response

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response

[quarkus-bot]

/cc @Ladicek (arc), @manovotn (arc), @mkouba (arc)

[gsmet]

@mkouba could you check it's the same issue that you already solved or if it's different?

[mkouba]

@mkouba could you check it's the same issue that you already solved or if it's different?

I can confirm that it's the same kind of problem and I've just verified that #37982 fixed this problem. In this particular case, an external service is called in the bean constructor (the rest client offloads the execution to a different thread ) which has the same effect as if it was called in a @PostConstruct callback a la #37958.

[mkouba]

@lucaspouzac another workaround is to use a @Startup method or an observer method instead of the bean constructor:

@ApplicationScoped
public class BootService {
    private final ConfigService configService;

    @Inject
    public BootService(@RestClient ConfigService configService) {
        this.configService = configService;
    }

    @Startup
    void onStart() {
       // Sync for startup
       updateCache().await().atMost(Duration.ofSeconds(1));
    }

    Uni<Void> updateCache() {
        return configService.getConfiguration().chain(item -> Uni.createFrom().voidItem());
    }
}

[mkouba]

Fixed in #37982 and backported in #38069.