Dependency injection in `@Bean` method with qualifier based on parameter name doesn't work in Spring 6.1

[LogicBig]

Following code stop working in spring-context 6.1.0.

      @Bean
       public BeanA bean1 () {
           return new BeanA("a1");
       }

       @Bean
       public BeanA bean2 () {
           return new BeanA("a2");
       }

       @Bean
       public BeanB bean3 (BeanA bean1) {
           BeanB beanB = new BeanB(bean1);
           return beanB;
       }

Error:
Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'com.example.BeanA' available: expected single matching bean but found 2: bean1,bean2

It was working fine until spring-context 6.0.14
bean-method-parameters.zip

Didn't find any related change here:
https://github.com/spring-projects/spring-framework/wiki/What's-New-in-Spring-Framework-6.x

[bclozel]

Have you seen the second paragraph in the upgrade guide?

https://github.com/spring-projects/spring-framework/wiki/Upgrading-to-Spring-Framework-6.x#core-container

You should have seen log messages as well with 6.0.x.

Can you try compiling with the "-parameters" option and let us know?

[LogicBig]

@bclozel thanks.

I fixed the issue by adding following:

 <compilerArgs>
           <arg>-parameters</arg>
 </compilerArgs>`

Also I see the warning logs in pre 6.0.14, never paid attention 😂

WARNING: Using deprecated '-debug' fallback for parameter name resolution. Compile the affected code with '-parameters' instead or avoid its introspection: com.example.InjectParameterByName$Config

Thanks!

[sbrannen]

Thanks for the confirmation, @LogicBig.

Also I see the warning logs in pre 6.0.14, never paid attention 😂

Well, sometimes it pays to heed warnings. 😉

[sbrannen]

This is effectively a duplicate of

• NoUniqueBeanDefinitionException when constructor/setter parameter name used as qualifier #31643