As javax validations not supported in springboot 3.0. How to do field validations using Jakarta. imports

import jakarta.persistence.Entity;
import jakarta.persistence.NotNull;
import jakarta.persistence.Pattern;

@Entity
@Data
public class Users{

@NotNull
@NotEmpty
Private String username;
@Pattern
Private String username;
@NotNull
Private String username;
}

Controller

public class UsersController{
   public void saveUser(@Valid @RequestBody Users user){
    repo.save();
   }
}