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异常创建无状态会话bean

[英]Exception creation stateless session bean

I'm trying to create an JaveEE project using EJB upon glassfish. 我正在尝试在glassfish上使用EJB创建一个JaveEE项目。 I have an Exception when trying to run it. 尝试运行它时出现异常。

There is a entity bean: 有一个实体bean:

User.java
@Entity
    public class User implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

EJB session: EJB会话:

package com.supinfo.courses.EJB;

import com.supinfo.courses.EJB.local.UserFacadeLocal;
import com.supinfo.courses.entities.User;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Formatter;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;


@Stateless
public class UserFacade extends AbstractFacade<User> implements UserFacadeLocal {

    @PersistenceContext(unitName = "4JVA-Courses-ejbPU")
    private EntityManager em;

    public UserFacade(EntityManager em, Class<User> entityClass) {
        super(entityClass);
        this.em = em;
    }

    @Override
    protected EntityManager getEntityManager() {
        return em;
    }

    public UserFacade() {
        super(User.class);
    }

    @Override
    public User findByCredentials(String email, String password) {
        CriteriaBuilder cb = getEntityManager().getCriteriaBuilder();
        CriteriaQuery<User> cq = cb.createQuery(User.class);
        Root<User> from = cq.from(User.class);
        cq.where(cb.equal(from.get("email"), email));
        cq.where(cb.equal(from.get("password"), hashPassword(password)));
        TypedQuery<User> query = getEntityManager().createQuery(cq);
        List<User> resultList = query.getResultList();

        // return first user that match or null
        return (resultList.isEmpty()) ? null : resultList.get(0);
    }


    @Override
    public void create(User entity) {
        // encrypt password (sha1)
        entity.setPassword(hashPassword(entity.getPassword()));
        super.create(entity);
    }


    public String hashPassword(String password) {
        String sha1 = "";
        try {
            MessageDigest crypt = MessageDigest.getInstance("SHA-1");
            crypt.reset();
            crypt.update(password.getBytes("UTF-8"));
            byte[] byteHash = crypt.digest();

            try (Formatter formatter = new Formatter()) {
                for (byte b : byteHash)
                    formatter.format("%02x", b);
                sha1 = formatter.toString();
            }
        } catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
            throw new Error("Unable to hash password");
        }

        return sha1;
    }

}

And a service for using it: 以及使用它的服务:

@Stateless
public class UserService {

    @EJB
    public UserFacade userFacade;


    public User registerUser(User user) {
        userFacade.create(user);

        return user;
    }


    public User loginUser(String email, String password) {
        User foundUser = userFacade.findByCredentials(email, password);

        return foundUser;
    }


    public boolean isValidEmailAddress(String email) {
        boolean result = true;
        try {
            InternetAddress emailAddr = new InternetAddress(email);
            emailAddr.validate();
        } catch (AddressException ex) {
            result = false;
        }
        return result;
    }
}

And finally the related servlet: 最后是相关的servlet:

@WebServlet(name = "LoginServlet", urlPatterns = {"/login"})
public class LoginServlet extends AbstractServlet {

     @EJB
     UserService userService;

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String error = null;
        // Parse login informations
        String email = request.getParameter("email");
        String password = request.getParameter("password");


        User user = null;
        if (email == null || password == null) {
            error = "Missing field";
        } else if(!userService.isValidEmailAddress(email)) {
            error = "Invalid email address";
        } else if(password.length() < 7) {
            error = "Password too short";
        } else {
            user = userService.loginUser(email, password);
            if (user == null) {
                error = "Bad Credentials";
            }
        }

        if (error != null) {
            //redirect with error data to jsp
            request.setAttribute("error", error);
            render("login", request, response);
        } else {
            request.getSession().setAttribute("user", user);
            forward("/courses/list", request, response);
        }

    }

}

The stacktrace indicate: stacktrace指示:

    Avertissement:   Context path from ServletContext: /4JVA-Courses-war differs from path from bundle: 4JVA-Courses-war
Grave:   EJB5070: Exception creating stateless session bean : [UserService]
Avertissement:   EJB5184:A system exception occurred during an invocation on EJB UserService, method: public boolean com.supinfo.courses.services.UserService.isValidEmailAddress(java.lang.String)
Avertissement:   javax.ejb.EJBException: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:435)
    at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:2516)
    at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1906)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:210)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at com.sun.proxy.$Proxy447.isValidEmailAddress(Unknown Source)
    at com.supinfo.courses.services.__EJB31_Generated__UserService__Intf____Bean__.isValidEmailAddress(Unknown Source)
    at com.supinfo.courses.servlets.authentication.LoginServlet.doPost(LoginServlet.java:60)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
    ... 40 more
Caused by: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:700)
    at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:246)
    at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:430)
    ... 44 more
Caused by: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:514)
    at com.sun.ejb.containers.StatelessSessionContainer.access$000(StatelessSessionContainer.java:97)
    at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:698)
    ... 46 more
Caused by: java.lang.IllegalStateException: Exception attempting to inject Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session into class com.supinfo.courses.services.UserService: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming}
    at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:145)
    at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:46)
    at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:64)
    at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:91)
    at org.glassfish.weld.services.JCDIServiceImpl.injectEJBInstance(JCDIServiceImpl.java:257)
    at com.sun.ejb.containers.BaseContainer.injectEjbInstance(BaseContainer.java:1683)
    at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:475)
    ... 48 more
Caused by: com.sun.enterprise.container.common.spi.util.InjectionException: Exception attempting to inject Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session into class com.supinfo.courses.services.UserService: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming}
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:717)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:484)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:170)
    at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:138)
    ... 54 more
Caused by: javax.naming.NamingException: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session' .  Actual (possibly internal) Remote JNDI name used for lookup is 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' [Root exception is javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]]]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:613)
    ... 57 more
Caused by: javax.naming.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session' .  Actual (possibly internal) Remote JNDI name used for lookup is 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' [Root exception is javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]]
    at com.sun.ejb.EjbNamingReferenceManagerImpl.resolveEjbReference(EjbNamingReferenceManagerImpl.java:188)
    at com.sun.enterprise.container.common.impl.ComponentEnvManagerImpl$EjbReferenceProxy.create(ComponentEnvManagerImpl.java:1143)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:745)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:715)
    at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:159)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:471)
    ... 61 more
Caused by: javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at com.sun.ejb.EjbNamingReferenceManagerImpl.resolveEjbReference(EjbNamingReferenceManagerImpl.java:183)
    ... 66 more
Caused by: javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found
    at com.sun.enterprise.naming.impl.TransientContext.doLookup(TransientContext.java:237)
    at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:204)
    at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:66)
    at com.sun.enterprise.naming.impl.LocalSerialContextProviderImpl.lookup(LocalSerialContextProviderImpl.java:114)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:478)
    ... 70 more

Avertissement:   StandardWrapperValve[LoginServlet]: Servlet.service() for servlet LoginServlet threw exception
javax.ejb.EJBException: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:435)
    at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:2516)
    at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1906)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:210)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at com.sun.proxy.$Proxy447.isValidEmailAddress(Unknown Source)
    at com.supinfo.courses.services.__EJB31_Generated__UserService__Intf____Bean__.isValidEmailAddress(Unknown Source)
    at com.supinfo.courses.servlets.authentication.LoginServlet.doPost(LoginServlet.java:60)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
    ... 42 more
Caused by: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:700)
    at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:246)
    at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:430)
    ... 44 more
Caused by: javax.ejb.CreateException: Could not create stateless EJB
    at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:514)
    at com.sun.ejb.containers.StatelessSessionContainer.access$000(StatelessSessionContainer.java:97)
    at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:698)
    ... 46 more
Caused by: java.lang.IllegalStateException: Exception attempting to inject Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session into class com.supinfo.courses.services.UserService: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming}
    at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:145)
    at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:46)
    at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:64)
    at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:91)
    at org.glassfish.weld.services.JCDIServiceImpl.injectEJBInstance(JCDIServiceImpl.java:257)
    at com.sun.ejb.containers.BaseContainer.injectEjbInstance(BaseContainer.java:1683)
    at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:475)
    ... 48 more
Caused by: com.sun.enterprise.container.common.spi.util.InjectionException: Exception attempting to inject Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session into class com.supinfo.courses.services.UserService: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming}
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:717)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:484)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:170)
    at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:138)
    ... 54 more
Caused by: javax.naming.NamingException: Lookup failed for 'java:comp/env/com.supinfo.courses.services.UserService/userFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session' .  Actual (possibly internal) Remote JNDI name used for lookup is 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' [Root exception is javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]]]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:613)
    ... 57 more
Caused by: javax.naming.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=com.supinfo.courses.services.UserService/userFacade,Remote 3.x interface =com.supinfo.courses.EJB.UserFacade,ejb-link=null,lookup=,mappedName=,jndi-name=com.supinfo.courses.EJB.UserFacade,refType=Session' .  Actual (possibly internal) Remote JNDI name used for lookup is 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' [Root exception is javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]]
    at com.sun.ejb.EjbNamingReferenceManagerImpl.resolveEjbReference(EjbNamingReferenceManagerImpl.java:188)
    at com.sun.enterprise.container.common.impl.ComponentEnvManagerImpl$EjbReferenceProxy.create(ComponentEnvManagerImpl.java:1143)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:745)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:715)
    at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:159)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:471)
    ... 61 more
Caused by: javax.naming.NamingException: Lookup failed for 'com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at com.sun.ejb.EjbNamingReferenceManagerImpl.resolveEjbReference(EjbNamingReferenceManagerImpl.java:183)
    ... 66 more
Caused by: javax.naming.NameNotFoundException: com.supinfo.courses.EJB.UserFacade#com.supinfo.courses.EJB.UserFacade not found
    at com.sun.enterprise.naming.impl.TransientContext.doLookup(TransientContext.java:237)
    at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:204)
    at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:66)
    at com.sun.enterprise.naming.impl.LocalSerialContextProviderImpl.lookup(LocalSerialContextProviderImpl.java:114)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:478)
    ... 70 more

Problem solved, also i didn't totally understood the logic. 问题解决了,我也不是完全理解逻辑。

From EJB Spec 3.1 - 4.9.2.1: 从EJB Spec 3.1-4.9.2.1开始:

Session Bean Superclasses 会话Bean超类

A session bean class is permitted to have superclasses that are themselves session bean >classes. 允许会话bean类具有本身就是会话bean>类的超类。 However, there are no special rules that apply to the processing of annotations or the deployment descriptor for this case. 但是,对于这种情况,没有适用于注释或部署描述符处理的特殊规则。 For the purposes of processing a particular session bean class, all superclass processing is identical regardless of whether the superclasses are themselves session bean classes. 为了处理特定的会话Bean类,所有超类的处理都是相同的,而不管这些超类本身是否为会话Bean类。 In this regard, the use of session bean classes as superclasses merely represents a convenient use of implementation inheritance, but does not have component inheritance semantics. 在这方面,将会话bean类用作超类仅表示实现实现继承的便捷用法,但不具有组件继承语义。

For example, the client views exposed by a particular session bean are not inherited by a subclass that also happens to define a session bean. 例如,特定会话bean公开的客户端视图不会被也恰好定义会话bean的子类继承。

 @Stateless public class A implements Foo { ... } @Stateless public class B extends A implements Bar { ... } 

Assuming Foo and Bar are local business interfaces and there is no associated deployment descriptor, session bean A exposes local business interface Foo and session bean B exposes local business interface Bar, but not Foo. 假设Foo和Bar是本地业务接口,并且没有关联的部署描述符,则会话Bean A公开本地业务接口Foo,而会话Bean B公开本地业务接口Bar,但不公开Foo。

Session bean B would need to explicitly include Foo in its set of exposed views for that interface to apply. 会话Bean B需要在其公开视图集中明确包含Foo,以应用该接口。 For example: 例如:

 @Stateless public class A implements Foo { ... } @Stateless public class B extends A implements Foo, Bar { ... } 

I my case, refractoring project and removing Interfaces worked. 以我为例,修改项目并删除Interfaces可以正常工作。

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