javax.validation.ConstraintViolationException: Bean Validation constraint(s) violated on preUpdate validation

I'm having an annoying error message while trying to insert new element in a many to many relationship using JPA 2.0, SpringMvc 3.0.

I have a table with States and another one with Persons. A person can be linked to many states and a state to many persons. In this particular case, I have a listOfStates and then a person and I would like to insert those elements in my many to many relationships.

ManyToMany Relationship (in table STATE)

    //bi-directional many-to-many association to Appointment
    @ManyToMany(cascade=CascadeType.ALL)
    @JoinTable(
name="PERSON_STATE"
, joinColumns={
    @JoinColumn(name="PERSON_ID", nullable=false)
    }
, inverseJoinColumns={
    @JoinColumn(name="CODE_STATE", nullable=false)
    }
)

DAO Code THAT I'm calling from my controller

try{    
    getEntityManager().getTransaction().begin();            
    getEntityManager().persist(myPerson);                       

    IStateDAO stateDAO = new StateDAO();

    for (int i=0; i<listOfStates.length; i++){
        State myState = stateDAO.findState(listOfStates[i]);
        if (myState != null){                   
            myState.getPersons().add(myPerson);
            getEntityManager().persist(开发者_如何学CmyState);
        }
    }

    getEntityManager().getTransaction().commit();           
    getEntityManager().close();         

} catch (RuntimeException re) {
    getEntityManager().close();
    throw re;           
}

The funny thing is that this code is working fine when I'm not inserting data from a web page. What i am doing wrong here? I already have some persons and states in the DB.

Full Stack Error Message:

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.validation.ConstraintViolationException: Bean Validation constraint(s) violated while executing Automatic Bean Validation on callback event:'preUpdate'. Please refer to embedded ConstraintViolations for details.


javax.validation.ConstraintViolationException: Bean Validation constraint(s) violated while executing Automatic Bean Validation on callback event:'preUpdate'. Please refer to embedded ConstraintViolations for details.

Any pointer would be really appreciated. Thanks in advance you all.

---

wow! got it! I had to change the validation-mode in my persistence.xml from Auto to NONE which basically tells the app not to used the bean validation at all. Error messages are gone and my DAO works well.

---

The Exceptions states that an JSR 303 Bean Validation is used, and Hibernate is configured (Persistence.xml) to check them before updating anything.

JSR 303 Bean Validation are annotations like:

• javax.validation.constraints.NotNull
• javax.validation.constraints.Size