Validation in Hibernate Validator

I want to use Hibernate Validator, In first step I checked and studied the following reference :

• Hibernate Validator JSR 349 Reference Implementation Reference Guide 5.0.2.Final

first sample in page 3 is my problem

I cloud not find this imports packages (javax.validation.*)

in hibernate-validator-5.0.2.Final.jar

I found only (org.hibernate.validator.*) but these classes did not exist

package org.hibernate.validator.referenceguide.chapter01;

import java.util.Set;
// ?????
import javax.validation.ConstraintViolation; // Not Found 
import javax.validation.Validation; // Not Found 
import javax.validation.Validator; // Not Found 
import javax.validation.ValidatorFactory; // Not Found 
// ?????
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class CarTest {

    private static Validator validator;

    @BeforeClass
    public static void setUp() {
        // ?????
        ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
        validator = factory.getValidator();
        // ?????
    }

    @Test
    public void manufacturerIsNull() {
        Car car = new Car(null, "DD-AB-123", 4);
        Set<ConstraintViolation<Car>> constraintViolations
                = validator.validate(car);
        assertEquals(1, constraintViolations.size());
        assertEquals("may not be null", constraintViolations.iterator().next().getMessage());

}

please help me and guide me what is necessary packages for the following code ?

    ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
    validator = factory.getValidator();

You need to add the validation-api jar to your classpath. The latest version is validation-api-1.1.0.Final.jar. The classes javax.validation.* are contained in this jar.