@Value annotation in Validator triggers Exception when resolving. [SPR-7196] #11855
Description
Derek Clarkson opened SPR-7196 and commented
We have written a custom validator and annotation. When we attempt to inject a value provided by a PropertyPlaceholderConfigurer, an exception is triggered. We can successfully inject bean references, which leads us to believe that there is an issue around injecting values. The following are the distilled segments of the code to show the setup and exception.
...
<context:annotation-config />
<mvc:annotation-driven />
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
...
@Target( { TYPE, ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = PasswordMatchValidator.class)
@Documented
public @interface PasswordMatch {
String message() default "{au.edu.open.website.PasswordMatchValidation}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
String field();
}
public class PasswordMatchValidator implements ConstraintValidator<PasswordMatch, Object> {
// This works and the properties bean is inject on each validation execution.
@Autowired
private SystemProperties props;
// This does not work and triggers an exception.
@Value("$host{file.storage.directory}")
private String dir;
public void initialize(final PasswordMatch constraintAnnotation) {
fieldName = constraintAnnotation.field();
}
// ... Rest of validator code goes here.
}
Here is the exception that is thrown when validating:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'au.edu.open.sde.validator.PasswordMatchValidator': Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException:
Could not autowire field: private java.lang.String au.edu.open.sde.validator.PasswordMatchValidator.dir;
nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException:
No bean named 'au.edu.open.sde.validator.PasswordMatchValidator' is defined
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1055)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:286)
at org.springframework.validation.beanvalidation.SpringConstraintValidatorFactory.getInstance(SpringConstraintValidatorFactory.java:50)
at org.hibernate.validator.engine.ConstraintTree.createAndInitializeValidator(ConstraintTree.java:192)
at org.hibernate.validator.engine.ConstraintTree.getInitializedValidator(ConstraintTree.java:171)
at org.hibernate.validator.engine.ConstraintTree.validateConstraints(ConstraintTree.java:113)
at org.hibernate.validator.metadata.MetaConstraint.validateConstraint(MetaConstraint.java:121)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:334)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForRedefinedDefaultGroup(ValidatorImpl.java:278)
at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:260)
at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:213)
at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:119)
at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:74)
at org.springframework.validation.DataBinder.validate(DataBinder.java:688)
...
Affects: 3.0.1