[jira] [Created] (GROOVY-10810) Spring Validator error when validating trait-added property

["Christopher Smith (Jira)" <ji...@apache.org>]

Christopher Smith created GROOVY-10810:
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             Summary: Spring Validator error when validating trait-added property
                 Key: GROOVY-10810
                 URL: https://issues.apache.org/jira/browse/GROOVY-10810
             Project: Groovy
          Issue Type: Bug
          Components: Compiler
    Affects Versions: 4.0.6
            Reporter: Christopher Smith


I am not certain that this is not a Spring bug, but I'm starting here.

I have this arrangement:
{code:groovy}
class ErrorInfo {
 @NotBlank String code
 @NotNull Instant timestamp
}

trait HasErrorInfo {
  @NotNull @Valid ErrorInfo errorInfo
}

class ErrorMessage implements HasErrorInfo {
  String text
}
{code}

On a validation failure ({{timestamp}} is null), Spring throws an exception:
{code}
java.lang.IllegalStateException: JSR-303 validated property 'data.attributes.com_example_HasErrorInfo__errorInfo.timestamp' does not have a corresponding accessor for Spring data binding - check your DataBinder's configuration (bean property versus direct field access)
  at org.springframework.validation.beanvalidation.SpringValidatorAdapter.processConstraintViolations(SpringValidatorAdapter.java:188)
  at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:109)
  at org.springframework.boot.autoconfigure.validation.ValidatorAdapter.validate(ValidatorAdapter.java:66)
  at org.springframework.validation.DataBinder.validate(DataBinder.java:933)
  ...
{code}

It seems the problem is a result of Spring's introspection of JSR-303 results.

I note on inspecting javap that although I have a method {{ErrorInfo getErrorInfo()}}, the JSR-303 annotations were not applied to that JavaBeans getter but instead to the synthetic method {{ErrorInfo com_example_HasErrorInfo__errorInfo$get()}}, which seems like a mistargeting.



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