ConstraintExceptionHandler should skip null node when building message

[FrogDevelopper]

Expected Behavior

The error message should be correctly constructed without null add to path

Actual Behaviour

When building the message, the path is append in the beginning to add context.
But if last node (type = BEAN) is undefined (name is null), we have a message "my_class.null: my_message"

Steps To Reproduce

1. Create an annotation @Toto

@Documented
@Target({ TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = { TotoValidator.class })
public @interface Toto {
}

2. Create the validator class

@Singleton
@Introspected
public class TotoValidator implements ConstraintValidator<Toto, MyClass> {

    @Override
    public boolean isValid(final MyClass myClass, @NonNull final AnnotationValue<Toto> annotationMetadata,
            @NonNull final ConstraintValidatorContext context) {
        context.messageTemplate("my_message");
        return false;
    }
}

3. Annotate a class with it
4. Try to validate an instance of the class
5. See in ConstraintExceptionHandler that the last node used for building message will return null for the name leading to message ""myClass.null: my_message"

Environment Information

• OS: MacOS 13.6.3
• JDK: Java 17 Temurin

Example Application

No response

Version

4.2.0

[FrogDevelopper]

FYI, in the ConstraintValidator, context.currentPath.nodes[2] (ValidationPath$DefaultBeanNode) already have its name as null