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Streamline and reduce Kotlin delegates [SPR-16020] #20569

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spring-issuemaster opened this issue Sep 27, 2017 · 0 comments

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commented Sep 27, 2017

Juergen Hoeller opened SPR-16020 and commented

With #20432 leading to yet another need for a Kotlin-specific parameter declaration check, let's take the opportunity to streamline our Kotlin support code: Specifically, we can unify the detection of Kotlin's optional parameters in MethodParameter.isOptional(), reduce BeanUtils.findPrimaryConstructor to Kotlin semantics (for reuse in AutowiredAnnotationBeanPostProcessor as well as data class construction), and finally introduce a common KotlinDetector delegate with an isKotlinType(Class) check.


Affects: 5.0 RC4

Issue Links:

  • #20232 Kotlin class instantiation with optional parameters and default values
  • #20402 Add support for Kotlin autowired constructor with optional parameters
  • #20432 Revisit handling of missing fields (without default values) for immutable data classes
  • #21825 GenericApplicationContext.registerBean should support non-default constructors

Referenced from: commits ec345bf

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