Juergen Hoeller opened SPR-15561 and commented

While SpringValidatorAdapter properly supports unwrap calls for the native JSR-303 Validator, its subclass LocalValidatorFactoryBean does not support unwrap for the native JSR-303 ValidatorFactory but rather just inherits the Validator-level support.

This needs to be revised towards proper ValidatorFactory unwrapping, in particular for getClockProvider() access on BV 2.0 and also getParameterNameProvider() access on BV 1.1.

Issue Links:

• Compatibility with Bean Validation 2.0 and JPA 2.2 [SPR-13482] #18061 Compatibility with Bean Validation 2.0 and JPA 2.2 ("is depended on by")
• AbstractMethodError when calling validated method of MethodValidationPostProcessor is using a @Lazy validator [SPR-15629] #20188 AbstractMethodError when calling validated method of MethodValidationPostProcessor is using a @Lazy validator

Referenced from: commits cb3d1be, ac25db6