Bonjour,

J'ai développé des EJB que je deploie sur Glassfish , je souhaite les tester à l'aide d'un client lourd.

J'arrive a récuperer mon EJB Remote depuis le client lourd , cepedante lorsque j'execute une méthode metier de cet EJB , l'appel à la methode entityFacade.findAll echoue lamentablement.

JE m'explique sur la manière que j'ai employé pour développer le projet :
J'ai définit une bdd , puis depuis netbeans j'ai generé les entity beans depuis une nouvelle persistence unit , puis a partir de ces entity j'ai généré les session beans ( facade ) , puis j'ai developper un ejb remote qui encapsule les méthodes métier.

Voici le code d'un entity :

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ecom.entity;
 
import java.io.Serializable;
import java.util.Collection;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
 
/**
 *
 * @author Rami
 */
@Entity
@Table(name = "customers", catalog = "baptiste", schema = "")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Customers.findAll", query = "SELECT c FROM Customers c"),
    @NamedQuery(name = "Customers.findByIdCustomer", query = "SELECT c FROM Customers c WHERE c.idCustomer = :idCustomer"),
    @NamedQuery(name = "Customers.findByLastName", query = "SELECT c FROM Customers c WHERE c.lastName = :lastName"),
    @NamedQuery(name = "Customers.findByFirstName", query = "SELECT c FROM Customers c WHERE c.firstName = :firstName"),
    @NamedQuery(name = "Customers.findByEmail", query = "SELECT c FROM Customers c WHERE c.email = :email"),
    @NamedQuery(name = "Customers.findByPassword", query = "SELECT c FROM Customers c WHERE c.password = :password")})
public class Customers implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @Basic(optional = false)
    @NotNull
    @Column(name = "idCustomer")
    private Integer idCustomer;
    @Size(max = 45)
    @Column(name = "lastName")
    private String lastName;
    @Size(max = 45)
    @Column(name = "firstName")
    private String firstName;
    // @Pattern(regexp="[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", message="Invalid email")//if the field contains email address consider using this annotation to enforce field validation
    @Size(max = 255)
    @Column(name = "email")
    private String email;
    @Size(max = 45)
    @Column(name = "password")
    private String password;
    @JoinTable(name = "customer_has_adress", joinColumns = {
        @JoinColumn(name = "customer_id", referencedColumnName = "idCustomer")}, inverseJoinColumns = {
        @JoinColumn(name = "adress_id", referencedColumnName = "idAdress")})
    @ManyToMany
    private Collection<Adress> adressCollection;
    @JoinColumn(name = "account_id", referencedColumnName = "idAccount")
    @ManyToOne(optional = false)
    private Account accountId;
    @OneToMany(cascade = CascadeType.ALL, mappedBy = "customerId")
    private Collection<Orders> ordersCollection;
 
    public Customers() {
    }
 
    public Customers(Integer idCustomer) {
        this.idCustomer = idCustomer;
    }
 
    public Integer getIdCustomer() {
        return idCustomer;
    }
 
    public void setIdCustomer(Integer idCustomer) {
        this.idCustomer = idCustomer;
    }
 
    public String getLastName() {
        return lastName;
    }
 
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
 
    public String getFirstName() {
        return firstName;
    }
 
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
 
    public String getEmail() {
        return email;
    }
 
    public void setEmail(String email) {
        this.email = email;
    }
 
    public String getPassword() {
        return password;
    }
 
    public void setPassword(String password) {
        this.password = password;
    }
 
    @XmlTransient
    public Collection<Adress> getAdressCollection() {
        return adressCollection;
    }
 
    public void setAdressCollection(Collection<Adress> adressCollection) {
        this.adressCollection = adressCollection;
    }
 
    public Account getAccountId() {
        return accountId;
    }
 
    public void setAccountId(Account accountId) {
        this.accountId = accountId;
    }
 
    @XmlTransient
    public Collection<Orders> getOrdersCollection() {
        return ordersCollection;
    }
 
    public void setOrdersCollection(Collection<Orders> ordersCollection) {
        this.ordersCollection = ordersCollection;
    }
 
    @Override
    public int hashCode() {
        int hash = 0;
        hash += (idCustomer != null ? idCustomer.hashCode() : 0);
        return hash;
    }
 
    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Customers)) {
            return false;
        }
        Customers other = (Customers) object;
        if ((this.idCustomer == null && other.idCustomer != null) || (this.idCustomer != null && !this.idCustomer.equals(other.idCustomer))) {
            return false;
        }
        return true;
    }
 
    @Override
    public String toString() {
        return "ecom.entity.Customers[ idCustomer=" + idCustomer + " ]";
    }
 
}
Voici le code d'un sesionbean :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package ecom.entityFacade;
 
import ecom.entity.Customers;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
 
/**
 *
 * @author Rami
 */
@Stateless
public class CustomersFacade extends AbstractFacade<Customers> implements CustomersFacadeLocal {
    @PersistenceContext(unitName = "EnterpriseApplication2-ejbPU")
    private EntityManager em;
 
    @Override
    protected EntityManager getEntityManager() {
        return em;
    }
 
    public CustomersFacade() {
        super(Customers.class);
    }
 
    public Customers findByEmail(String email) {
      Query q = em.createNamedQuery("Customers.findByEmail").setParameter("email", email);
      return (Customers) q.getSingleResult();
    }
 
     public Customers findByName(String name) {
         Query q = em.createNamedQuery("Customers.findByLastName").setParameter("lastName", name);
       return (Customers) q.getSingleResult();
    }
      public List<Customers> findAll2() {
         Query q = em.createNamedQuery("Customers.findAll");
       return (List<Customers>)  q.getResultList();
    }
 
}
Voici le code de mon remote :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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package ecom.session;
 
import ecom.exception.EcomException;
 
import ecom.entity.Account;
import ecom.entity.Adress;
import ecom.entity.Categories;
import ecom.entity.Country;
import ecom.entity.Customers;
import ecom.entity.Products;
import ecom.entity.ProductStore;
import ecom.entity.Stores;
import ecom.entityFacade.*;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Remote;
import javax.ejb.Stateful;
 
@Stateful
//@Remote(EcomAdminRemote.class)
public class EcomAdminBean extends EcomGenericBean implements EcomAdminRemote {
 
 
    /********** METHODE POUR LES ACCOUNT
     * createAccount
     * listAccount
     * modifyAccount
     * deleteAccount
     */
    /**
     *
     * @param iban : iban du compte
     * @param accountOwner : correspond au nom  dans le cas d'un client, ou du nom du magazin dans le cas d'un store
     * @param balance : balance du compte
     */
 
    @Override
   public void createAccount(String iban, String accountOwner, double balance) throws EcomException {
        //Creation de l'Account
        Account account = new Account();
        account.setIban(iban);
        account.setBalance(Double.valueOf(balance));
 
        // Creation du DAO pour creer le compte
        AccountFacade accountDao = new AccountFacade();
        accountDao.create(account);
 
 
        // mise a jour de l'utilisateur qui possede le nouveau compte
        CustomersFacade customerDao = new CustomersFacade();
        Customers c = customerDao.findByName(accountOwner);
 
        if (null == c) {
            // il s'agit d'un store
            throw new EcomException("On ne peut pas encore ajouter de compte pour un store");
        } else {
            // il s'agit d'un customer
            c.setAccountId(account);
            customerDao.edit(c);
        }
 
    }
 
    @Override
    public void createCategory(String label, String description) throws EcomException {
        //Creation de l'Account
        Categories category = new Categories();
        category.setLabel(label);
        category.setDescription(description);
 
 
 
        // Creation du DAO pour creer le compte
        CategoriesFacade categoryDao = new CategoriesFacade();
        categoryDao.create(category);
 
 
    }
 
    @Override
    public void deleteCategory(int id) {
        Categories c = null;
        CategoriesFacade categoryDao = new CategoriesFacade();
 
        c = categoryDao.find(id);
        categoryDao.remove(c);
 
    }
 
    @Override
    /**
     * List
     */
    public List<Account> listAccount() {
        AccountFacade accountDao = new AccountFacade();
        List<Account> accountList = accountDao.findAll();
        return accountList;
    }
 
    @Override
    /**
     * List
     */
    public Account getAccountByIban(String iban) {
        AccountFacade accountDao = new AccountFacade();
        Account account = accountDao.findByIban(iban);
 
        return account;
    }
 
    @Override
    /**
     * List
     */
    public Account getAccountById(int id) {
        AccountFacade accountDao = new AccountFacade();
        Account account = accountDao.find(id);
        return account;
    }
 
    @Override
    /**
     * Permet de modifier la balance d'un compte a partir de son iban
     */
    public void modifyAccount(int id, String iban, double balance) {
        AccountFacade accountDao = new AccountFacade();
        Account account = accountDao.find(id);
        account.setIban(iban);
        account.setBalance(balance);
        accountDao.edit(account);
    }
 
    @Override
    public void deleteAccount(int id) {
        Account a = null;
        AccountFacade accountDao = new AccountFacade();
 
        a = accountDao.find(id);
        accountDao.remove(a);
 
    }
 
    /********** METHODE POUR LES STORES
     * createStore
     * listStore
     * modifyStore
     * deleteStore
     */
    /**
     *  Créer un magasin à partir de son nom
     * @param name 
     */
    public void createStore(String name) {
        //Creation de l'Account
        Account account = new Account();
        Integer idAccount =0;
        account.setIdAccount(idAccount);
 
 
        //Création du store
        Stores store = new Stores();
        store.setName(name);
        store.setAccountId(account);
 
 
 
        // Creation du DAO pour creer le compte
        StoresFacade storeDAO = new StoresFacade();
        storeDAO.create(store);
 
 
    }
 
    @Override
    public void modifyStore(Integer storeId, String newNameStore) {
        //Recherche du store correspondant à l'id
        Stores store = new Stores();
 
        //Création des dao
        StoresFacade storeDAO = new StoresFacade();
        store = storeDAO.find(storeId);
 
        //changement
        store.setName(newNameStore);
 
        //transaction
        storeDAO.edit(store);
    }
 
    @Override
    public void associateProductToStore(int productId, int storeId, int stock, Double price) throws EcomException {
       Stores store = new Stores();
       Products product = new Products();
       StoresFacade storeDAO = new StoresFacade();
       ProductsFacade productDAO = new ProductsFacade();
 
 
       store = storeDAO.find(storeId);
       product = productDAO.find(productId);
 
       if(null == store) {
           throw new EcomException("le Store avec l'id "+storeId+" n'existe pas");
       } else if(null == product) {
           throw new EcomException("le Product avec l'id "+productId+" n'existe pas");
       } else {
           ProductStore productStore = new ProductStore(storeId, productId);
           ProductStoreFacade productStoreDAO = new ProductStoreFacade();
           productStore.setPrice(price);
           productStore.setStock(stock);
           productStoreDAO.create(productStore);
       } 
 
 
    }
 
    @Override
    public void associateAccountToStore(Integer storeId, Integer accountID) {
        //Recherche du store correspondant à l'id
        Stores store = new Stores();
        StoresFacade storeDAO = new StoresFacade();
        store = storeDAO.find(storeId);
 
        //recherche du compte
        Account account =  new Account();
        AccountFacade accountDAO = new AccountFacade();
        account = accountDAO.find(accountID);
 
        //association du compte au store
        store.setAccountId(account) ;
 
        //transaction
        storeDAO.edit(store);
 
 
    }
 
    /**
     * Supprime un magasin a partir de son ID
     * @param storeId 
     */
    @Override
    public void deleteStore(Integer storeId) {
 
        //Recherche du store correspondant à l'id
        Stores store = new Stores();
 
        //Création des dao
        StoresFacade storeDAO = new StoresFacade();
        store = storeDAO.find(storeId);
 
        //suprresion du store
        storeDAO.remove(store);
    }
 
    public void createProduct(String productName, String description, int categoryId) throws EcomException {
        Products product = new Products();
        ProductsFacade productDAO = new ProductsFacade();
        CategoriesFacade categoryDAO = new CategoriesFacade();
        product.setName(productName);
        product.setDescription(description);
 
        Categories category = categoryDAO.find(categoryId);
 
        if (null == category) {
            throw new EcomException("La categorie n'existe pas");
        } else {
            // il s'agit d'un customer
            product.setCategoryId(category);
            productDAO.create(product);
        }
 
    }
 
    /********** METHODE POUR LES CUSTOMERS
     * createCustomer
     * listCustomer
     * modifyCustomer
     * deleteCustomer
     */
    @Override
    public List<Customers> listCustomer() {
        List<Customers> customerList  ;
        CustomersFacade customerDao = new CustomersFacade();
        customerList = customerDao.findAll2();
 
        return customerList;
    }
 
    /**
     * Permet de creer un customer a partir d'un compte existant
     * @param lastName
     * @param firstName
     * @param email
     * @param password
     * @param street
     * @param zipCode
     * @param city
     * @param countryId
     * @param idAccount
     * @throws EcomException 
     */
    @Override
    public void createCustomer(String lastName, String firstName, String email, String password, String street, String zipCode, String city, int countryId, int idAccount) throws EcomException {
        // Declarations des DAOs
        CustomersFacade customerDAO = new CustomersFacade();
        AdressFacade adressDAO = new AdressFacade();
        AccountFacade accountDAO = new AccountFacade();
 
        // Creation des references de l'objet customer
        Customers customer = new Customers();
        Adress adress = new Adress();
        List<Adress> adressList = new ArrayList();
 
        adress.setCity(city);
        adress.setStreet(street);
        adress.setZipcode(zipCode);
        adress.setCountryId(new Country(countryId));
 
        adressList.add(adress);
 
        customer.setFirstName(firstName);
        customer.setLastName(lastName);
        customer.setEmail(email);
        customer.setPassword(password);
        customer.setAdressCollection(adressList);
 
        Account a= accountDAO.find(idAccount);
 
        if (null == a) {
            throw new EcomException("L'account n'existe pas");
        } else {
            // Debut des transactions
            customer.setAccountId(a);
            adressDAO.create(adress);
            customerDAO.create(customer);
        }
        // fermeture des session
    }
 
    /**
     * Permet de creer un customer y compris le compte
     * @param lastName
     * @param firstName
     * @param email
     * @param password
     * @param street
     * @param zipCode
     * @param city
     * @param countryId
     * @param iban
     * @param balance
     * @throws EcomException 
     */
    public void createCustomer(String lastName, String firstName, String email, String password, String street, String zipCode, String city, int countryId, String iban, double balance) {
        // Declarations des DAOs
        CustomersFacade customerDAO = new CustomersFacade();
        AdressFacade adressDAO = new AdressFacade();
        AccountFacade accountDAO = new AccountFacade();
 
        // Creation des references de l'objet customer
        Customers customer = new Customers();
        Adress adress = new Adress();
        List<Adress> adressList = new ArrayList();
        Account account = new Account();
 
        adress.setCity(city);
        adress.setStreet(street);
        adress.setZipcode(zipCode);
        adress.setCountryId(new Country(countryId));
 
        adressList.add(adress);
 
        account.setIban(iban);
        account.setBalance(balance);
 
        customer.setFirstName(firstName);
        customer.setLastName(lastName);
        customer.setEmail(email);
        customer.setPassword(password);
        customer.setAdressCollection(adressList);
        customer.setAccountId(account);
 
        // Debut des transactions
        accountDAO.create(account);
        adressDAO.create(adress);
        customerDAO.create(customer);
 
    }
 
    @Override
    public void modifyCustomer(String lastName, String firtName, String email) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
 
    @Override
    public void deleteCustomer(int id) {
        Customers c = null;
        CustomersFacade customerDao = new CustomersFacade();
 
        c = customerDao.find(id);
        customerDao.remove(c);
    }
 
    @Override
    public void addAdressToCustomer(Customers c) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
 
    @Override
    /**
     * Permet de lister les country afin de saisir la totalite de l'adresse pour la creation d'un customer
      */
    public List<Country> listCountry() {
        List<Country> countryList = null;
        CountryFacade dao = new CountryFacade();
        countryList = dao.findAll();
        return countryList;
    }
 
    @Override
    public List<Products> listProducts() {
        List<Products> productList = null;
        ProductsFacade productDAO = new ProductsFacade();
        productList = productDAO.findAll();
        return productList;
    }
 
 
    /**
     * liste les produits d'un store
     * @param idStore
     * @return la liste des produits d'un store
     */
 
    @Override
    public List<ProductStore> listProductsStore(int idStore) {
        List<ProductStore> productStoreList = null;
        ProductStoreFacade productStoreDAO = new ProductStoreFacade();
        productStoreList = productStoreDAO.findByStoreId(idStore);
        return productStoreList;
    }
 
 
    /**
     * Liste les produits d'un catégorie
     * @param idCategory
     * @return une liste de produit
     */
/*    
    @Override
    public List<Product> listProductsByCategory(int idCategory) {
        List<Product> productList = null;
        ProductDAO productDAO = new ProductDAO();
        productList = productDAO.findAllByCategory(idCategory);
        productDAO.closeSession();
        return productList;
    }
*/
 
    /**
     * Liste toutes les catégories
     */
    public List<Categories> listCategory() {
        CategoriesFacade categoryDao = new CategoriesFacade();
        List<Categories> categoryList = categoryDao.findAll();
 
        return categoryList;
    }
 
    @Override
    /**
     * Retourne la catégorie en fonction de l'id
     */
    public Categories findCategory(int idCategory) {
        CategoriesFacade categoryDao = new CategoriesFacade();
        Categories category = categoryDao.find(idCategory);
 
        return category;
    }
 
    @Override
    public List<Products> findProductsByInName(String inName) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
}
Voici la trace lors d'un appel de la methodes customersFacade.findAll :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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ATTENTION: EJB5184:A system exception occurred during an invocation on EJB EcomAdminBean, method: public java.util.List ecom.session.EcomAdminBean.listCustomer()
ATTENTION: javax.ejb.EJBException
	at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5215)
	at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5113)
	at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4901)
	at com.sun.ejb.containers.StatefulSessionContainer.postInvokeTx(StatefulSessionContainer.java:1651)
	at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2045)
	at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1994)
	at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:213)
	at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:79)
	at $Proxy256.listCustomer(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:144)
	at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:174)
	at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:528)
	at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:199)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1624)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1486)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:990)
	at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:214)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:742)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:539)
	at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2324)
	at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
	at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
Caused by: java.lang.NullPointerException
	at ecom.entityFacade.CustomersFacade.findAll2(CustomersFacade.java:42)
	at ecom.session.EcomAdminBean.listCustomer(EcomAdminBean.java:290)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
	at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
	at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:4180)
	at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5368)
	at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348)
	at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:206)
	... 19 more

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Merci par avance

Cordialement