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Document the difference in generics resolution between @Autowired and beanFactory.getBeanProvider #27727

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snicoll opened this issue Nov 24, 2021 · 0 comments
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Document the difference in generics resolution between @Autowired and beanFactory.getBeanProvider #27727

snicoll opened this issue Nov 24, 2021 · 0 comments
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@jhoeller
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in: core Issues in core modules (aop, beans, core, context, expression) type: documentation A documentation task
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5.3.14

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@snicoll
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snicoll commented Nov 24, 2021 •
edited by jhoeller

See the sample project for code example: https://github.com/snicoll-scratches/demo-unresolved-type-fallback

If a bean is defined with an unresolved generic such as NumberHolder<?> and the injection point is defined as NumberHolder<Integer>, @Autowired is able to inject the bean whereas a getIfAvailable call on getBeanProvider returns null.

It looks like an inconsistency in the dependency resolution algorithm.
@snicoll snicoll added the status: waiting-for-triage An issue we've not yet triaged or decided on label Nov 24, 2021
@jhoeller jhoeller changed the title Inconsistent dependency resolution between @Autowired and beanFactory.getOBjectProvider Inconsistent dependency resolution between @Autowired and beanFactory.getBeanProvider Nov 24, 2021
@jhoeller jhoeller added in: core Issues in core modules (aop, beans, core, context, expression) type: documentation A documentation task and removed status: waiting-for-triage An issue we've not yet triaged or decided on labels Nov 24, 2021
@jhoeller jhoeller self-assigned this Nov 24, 2021
@jhoeller jhoeller added this to the 5.3.14 milestone Nov 24, 2021
@jhoeller jhoeller changed the title Inconsistent dependency resolution between @Autowired and beanFactory.getBeanProvider Inconsistent generics resolution between @Autowired and beanFactory.getBeanProvider Nov 26, 2021
@snicoll snicoll changed the title Inconsistent generics resolution between @Autowired and beanFactory.getBeanProvider Document the difference in generics resolution between @Autowired and beanFactory.getBeanProvider Dec 8, 2021
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in: core Issues in core modules (aop, beans, core, context, expression) type: documentation A documentation task
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