Dear professor, thanks for read my confuse.

I had create a custom `ConstraintValidator`, code like those:

```
...
@Slf4j
public class PathValidator implements ConstraintValidator<Path, String> {

private final MlbService mlbService;

private final Set<String> catalogSet = new CopyOnWriteArraySet<>();
private final Set<String> extensionSet = new CopyOnWriteArraySet<>();

// path regex
private final Pattern pathPattern = Pattern.compile("^(\\w+)/(\\w)/(\\w)/([
w-]{36})\\.(
w+)$");

@Autowired
public PathValidator(MlbService mlbService) {
this.mlbService = mlbService;
}

@Override
public void initialize(Path constraintAnnotation) {
catalogSet.addAll(mlbService.minioSupportCatalog());
extensionSet.addAll(mlbService.minioSupportExtension());
}

@Override
public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
var matcher = pathPattern.matcher(s);
if (!matcher.find()) {
log.warn("Minio path {} is illegal", s);
return false;
}
var catalog = matcher.group(1);
var extension = matcher.group(5);
if (catalogSet.contains(catalog) && extensionSet.contains(extension)) {
return true;
} else {
log.warn("Minio path {} is illegal, catalog or extension illegal", s);
return false;
}
}
}
```

`MlbService` is a Spring Service Bean, i need inject this bean at constructor because it had parse some config from yaml.

JSR 303 annotation is named `@Path`.

```
...
@Constraint(validatedBy = {PathValidator.class})
...
public @interface Path {
...
}
```

But i had some problem.

The @Path is normal when i annotated it at method parameters or return value, but when i use it at JPA entity and repository interface is annotated with `@Validated`, and call the save method or others, then , i will get `HV000064: Unable to instantiate ConstraintValidator` and `NoSuchMethodException: ...PathValidator.<init>()`

I am very very confuse about it.

and i try to debug the source code, i found in normal case the `ValidatorFactory` is `SpringConstraintValidatorFactory`, but at abnormal case is `ConstraintValidatorFactoryImpl`, `ConstraintValidatorFactoryImpl` find no args constructor at ConstraintValidator define, so that get an NoSuchMethodException.

I had search this issue at google, but no useful information found, i am very very confuse about this, that bothers me the most.

And the attachment is the full releate code.

Thank you for reading this, I look forward to receiving your reply.