реализация JSR 303 дает ClassCastException

Question

Я реализую пользовательскую аннотацию проверки, используя JSR 303, и я становлюсь ниже ошибки. Я выполняю данные, указанные в Cross field validation with Hibernate Validator (JSR 303)

java.lang.ClassCastException: com.sun.proxy.$Proxy95 cannot be cast to com.my.validator.FieldMatch 
at com.my.validator.FieldMatchValidator.initialize(FieldMatchValidator.java:14) ~[classes/:na] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintValidatorManager.initializeConstraint(ConstraintValidatorManager.java:261) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintValidatorManager.createAndInitializeValidator(ConstraintValidatorManager.java:183) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintValidatorManager.getInitializedValidator(ConstraintValidatorManager.java:122) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.getConstraintValidatorNoUnwrapping(ConstraintTree.java:303) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.getConstraintValidatorInstanceForAutomaticUnwrapping(ConstraintTree.java:244) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.getInitializedConstraintValidator(ConstraintTree.java:163) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:116) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.constraintvalidation.ConstraintTree.validateConstraints(ConstraintTree.java:87) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:73) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 
at org.hibernate.validator.internal.engine.ValidatorImpl.validateMetaConstraint(ValidatorImpl.java:617) ~[hibernate-validator-5.2.4.Final.jar:5.2.4.Final] 

Может кто-то пожалуйста, помогите мне?

Answer 1

Если вы написали пользовательскую аннотацию проверки, пожалуйста, убедитесь, что @Constraint (validatedBy = FieldMatchValidator.class) имеет правильный класс проверки. Если validatedBy имеет другой класс, вы получите ClassCastException. Пожалуйста, обратитесь к аналогичной проблеме, указанной в How to solve cast issue java.lang.ClassCastException: $Proxy cannot be cast to NotEmpty wich is annotation

@Target({TYPE, ANNOTATION_TYPE}) 
@Retention(RUNTIME) 
@Constraint(validatedBy = FieldMatchValidator.class) 
@Documented 
public @interface FieldMatch 
{ 
}