MethodValidationPostProcessor still validates FactoryBean methods on CGLIB proxies [SPR-17386]

[spring-projects-issues]

Juergen Hoeller opened SPR-17386 and commented

As mentioned in #21907 comments, the initial fix only covers the interface-based proxy case but unfortunately still runs into a stack overflow against CGLIB proxies. This incurs a significantly more expensive check at runtime, so let's see what we can do about it.

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Affects: 4.3.20, 5.0.10, 5.1.1

Issue Links:

• MethodValidationPostProcessor validates FactoryBean methods for which validation is not applicable [SPR-17374] #21907 MethodValidationPostProcessor validates FactoryBean methods for which validation is not applicable
• MethodValidationPostProcessor does not support JDK proxy from FactoryBean [SPR-17431] #21964 MethodValidationPostProcessor does not support JDK proxy from FactoryBean

Backported to: 5.0.11, 4.3.21