<dependency>
<groupId>io.valdr</groupId>
<artifactId>valdr-bean-validation</artifactId>
<version>2.1.1</version>
</dependency>
public class User {
private String username;
}
public class App {
public static void main(String[] args) {
User user = new User();
Validator validator = new Validator();
Set<ConstraintViolation<User>> violations = validator.validate(user);
if (!violations.isEmpty()) {
for (ConstraintViolation<User> violation : violations) {
}
}
}
}
