JPA 2.0 : Exception to use javax.validation.* package in JPA 2.0

Question

when i try to using bean validation with JPA using hibernate , the follwoing exception will occur :

Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: Chapter11] Unable to build EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915) at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47) at example.test.Test.main(Test.java:18)  Caused by: org.hibernate.HibernateException: Error applying BeanValidation relational constraints at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:219) at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.integrate(BeanValidationIntegrator.java:126) at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:306) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1744) at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94) at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905) ... 5 more  Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:208) ... 10 more Caused by: java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:41) at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:269) at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:111) at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:521) at org.hibernate.cfg.beanvalidation.TypeSafeActivator.applyDDL(TypeSafeActivator.java:119) ... 15 more  Caused by: java.lang.ClassNotFoundException: javax.validation.ParameterNameProvider at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 20 more 

i am new to use validation package and i have not knowledge of JAVA EE beans . how to use this validation package with jpa entity following is my code :

 public class Employee implements Serializable , EmployeeDetail{   private static final long serialVersionUID = 1L; @Id @GeneratedValue private int id; @NotNull private String name;     ____________________  public class Test { public static void main(String[] args) {     EntityManagerFactory emf = Persistence.createEntityManagerFactory("Chapter11");     EntityManager em = emf.createEntityManager();     EntityTransaction etr = em.getTransaction();      etr.begin();             ------------------          FullTimeEmployee flEmp = new FullTimeEmployee();         flEmp.setName("Harmeet Singh");         flEmp.setPension(56000);         flEmp.setSalary(100000);          ValidatorFactory factory = Validation.buildDefaultValidatorFactory();         Validator validator = factory.getValidator();         validator.validate(flEmp, Employee.class);          em.persist(flEmp);     etr.commit(); 

Answer 1

For those who got error NoClassDefFoundError: javax/validation/valueextraction/ValueExtractorDeclarationException and their validation-api was already javax.validation:validation-api:1.1.0.Final

The fix was to upgrade from javax.validation:validation-api:1.1.0.Final to javax.validation:validation-api:2.0.1.Final.

Answer 2

As @Korgen mentioned in comments hibernate-validator-5.x.x isn't compatible with validation-api-1.0.x. This is because of moving to new specification JSR-303 -> JSR-349.

There are two ways to solve this issue:

1. Downgrade hibernate validator version (which is implements JSR-303):

<dependency>     <groupId>org.hibernate</groupId>     <artifactId>hibernate-validator</artifactId>     <version>4.3.1.Final</version> </dependency>  

2. If you don't want to move back from hibernate validator 5 to hibernate validator 4 another solution is to upgrade javax.validation to higher version (which is describe JSR-349):

<dependency>     <groupId>javax.validation</groupId>     <artifactId>validation-api</artifactId>     <version>1.1.0.Final</version> </dependency>