Field name is used to match on bean name when @Autowired matches several beans by type [SPR-16142]

[spring-projects-issues]

Rasmus Lund opened SPR-16142 and commented

As shown by the referenced example project, field name is used to match on bean name when @Autowired matches several beans by type. We can't find this behavior documented anywhere. Is it by accident or by purpose? If by purpose, it should be mentioned in the reference documentation when @Autowired is described.

Note: The example project referenced by the URL shows a minimal setup that illustrates the unexpected behavior. It also has a more verbose explanation in its README.md.

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Reference URL: https://github.com/mkjensen/spring-question

Issue Links:

• Autowiring by name (interface vs class) [SPR-16174] #20722 Autowiring by name (interface vs class)

Backported to: 4.3.13

[spring-projects-issues]

Juergen Hoeller commented

This is indeed by design. I'll make sure to mention this properly in the documentation.

[spring-projects-issues]

Rasmus Lund commented

Thanks for the quick answer!

This has been a cause for big confusion on our project - so maybe mention in both ref-documentation and JavaDoc on @Autowired :-)

[spring-projects-issues]

Yanming Zhou commented

It very useful improvement, solved parts of #18201