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Home/ Questions/Q 6588717
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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T17:04:57+00:00 2026-05-25T17:04:57+00:00

i implements this tutorial , but i cant access the service from EJB3. My

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i implements this tutorial, but i cant access the service from EJB3.

My ejb looks like this:

@Stateless
public class Authentication implements AuthenticationRemote {

  private ServiceTwoManagement man;

  ...    

}

@EJB will throw: java.lang.RuntimeException: Could not resolve @EJB reference:

Any Suggestions

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  1. Editorial Team
    Editorial Team
    2026-05-25T17:04:58+00:00Added an answer on May 25, 2026 at 5:04 pm

    You guys had no chance to post an concrete answer (many informations hidden), i currently found either an clean solution or an buggy workaround. In second case: i would be glad to see any better solution like i found.

    My solution was to create an service-bean (3rd bean) hold’s all the TransportObjects.

    @Service defines an Singleton, so i get close to the GoF-Pattern using the Singleton-Pattern.

    Finally my solution looks like this:

    package org.gegenakw.ejb.user;
    
    import java.security.NoSuchAlgorithmException;
    import java.util.List;
    import java.util.logging.Logger;
    
    import javassist.NotFoundException;
    
    import javax.ejb.EJB;
    import javax.ejb.Stateless;
    import javax.persistence.PersistenceContext;
    
    import org.antiakw.exceptions.authentication.AccountAlreadyExistsException;
    import org.antiakw.exceptions.authentication.IllegalLoginException;
    import org.antiakw.exceptions.authentication.NotYetActivatedException;
    import org.gegenakw.Utils;
    import org.gegenakw.ejb.extern.RegistrationEmailsTransportObjectHolder;
    import org.gegenakw.ejb.interfaces.RegistrationTransferObject;
    import org.hibernate.Criteria;
    import org.hibernate.HibernateException;
    import org.hibernate.Session;
    import org.hibernate.Transaction;
    import org.hibernate.criterion.Restrictions;
    import org.hibernate.validator.InvalidStateException;
    import org.jboss.ejb3.annotation.Depends;
    
    import de.antiakw.jpa.beans.Benutzer;
    
    /**
     * Session Bean implementation class Authentication
     */
    @Stateless
    public class Authentication implements AuthenticationRemote {
    
      public static Logger log = Logger.getLogger("Authentication");
    
      @PersistenceContext(unitName = "gegenakwjpa")
      Session hibernateSession;
    
      // @EJB
      private List<RegistrationTransferObject> registration = RegistrationEmailsTransportObjectHolder.getInstance();
    
      @Override
      public void createAccountCheckDuplicates(String email, String pass)
          throws InvalidStateException, AccountAlreadyExistsException {
        ...
      } 
    
      ...
    }
    

    My RETOH looks like this:

    package org.gegenakw.ejb.extern;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import javax.annotation.PostConstruct;
    
    import org.gegenakw.ejb.interfaces.RegistrationTransferObject;
    import org.jboss.ejb3.annotation.Management;
    import org.jboss.ejb3.annotation.Service;
    
    @Service(objectName = "gegen-akw:service=RETOH")
    @Management(List.class)
    public class RegistrationEmailsTransportObjectHolder extends ArrayList<RegistrationTransferObject> {
    
      private static RegistrationEmailsTransportObjectHolder me;
    
      public static RegistrationEmailsTransportObjectHolder getInstance() {
        return me;
      }
    
      @PostConstruct
      public void create() throws Exception {
        me = this;
    
      }
    
    }
    

    And my Job looks like this:

    package de.antiakw.service.email;
    
    import java.io.DataInputStream;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import java.security.KeyStore;
    import java.security.KeyStoreException;
    import java.security.NoSuchAlgorithmException;
    import java.security.NoSuchProviderException;
    import java.security.PrivateKey;
    import java.security.Provider;
    import java.security.Security;
    import java.security.cert.X509Certificate;
    import java.util.List;
    import java.util.logging.Logger;
    
    import javax.annotation.Resource;
    import javax.ejb.ActivationConfigProperty;
    import javax.ejb.MessageDriven;
    import javax.mail.Message.RecipientType;
    import javax.mail.MessagingException;
    import javax.mail.Transport;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeBodyPart;
    import javax.mail.internet.MimeMessage;
    import javax.mail.internet.MimeMultipart;
    
    import org.bouncycastle.jce.provider.BouncyCastleProvider;
    import org.bouncycastle.mail.smime.SMIMEException;
    import org.bouncycastle.mail.smime.SMIMESignedGenerator;
    import org.gegenakw.ejb.interfaces.RegistrationTransferObject;
    import org.jboss.ejb3.annotation.Depends;
    import org.jboss.ejb3.annotation.ResourceAdapter;
    import org.quartz.Job;
    import org.quartz.JobExecutionContext;
    import org.quartz.JobExecutionException;
    
    @ResourceAdapter("quartz-ra.rar")
    @MessageDriven(activationConfig = { @ActivationConfigProperty(propertyName = "cronTrigger", propertyValue = "0 * * * * ?") }
    
    )
    public class RegistrationEmails implements Job {
    
      public static final Logger log = Logger.getLogger("RegistrationEmails");
    
      private static java.security.cert.Certificate certificate;
    
      @Depends("gegen-akw:service=RETOH")
      private List<RegistrationTransferObject> registrationMailHolder;
    
      @Resource(mappedName = "java:Gegen-AKW-Mailsystem")
      javax.mail.Session mailSession;
    
      @Override
      public void execute(JobExecutionContext arg0) throws JobExecutionException {
        synchronized (registrationMailHolder) {
    

    @JavaKaBaby: to folow your needs, i post my stactrace using @EJB instad of singleton-pattern (i hope the problem is comprehesible withal my workaround):

    09:51:21,577 ERROR [AbstractKernelController] Error installing to Real: name=vfs:///C:/jboss-6.1.0.Final/server/default/deploy/gegen-akw.ear state=PreReal mode=Manual requiredState=Real: org.jboss.dep
    loyers.spi.DeploymentException: Error during deploy: org.jboss.metadata.ejb.jboss.JBossEnterpriseBeanMetaData.Authentication
            at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:185) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1832) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1550) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1571) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1603) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1491) [:2.2.2.GA]
            at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:379) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:2044) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:1083) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.executeOrIncrementStateDirectly(AbstractController.java:1322) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1246) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1139) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:939) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:654) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.change(DeployersImpl.java:1983) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:1076) [:2.2.2.GA]
            at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:679) [:2.2.2.GA]
            at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.process(MainDeployerPlugin.java:106) [:6.1.0.Final]
            at org.jboss.profileservice.dependency.ProfileControllerContext$DelegateDeployer.process(ProfileControllerContext.java:143) [:0.2.2]
            at org.jboss.profileservice.dependency.ProfileDeployAction.deploy(ProfileDeployAction.java:151) [:0.2.2]
            at org.jboss.profileservice.dependency.ProfileDeployAction.installActionInternal(ProfileDeployAction.java:94) [:0.2.2]
            at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:54) [jboss-kernel.jar:2.2.0.SP2]
            at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:42) [jboss-kernel.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:379) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:2044) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:1083) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.executeOrIncrementStateDirectly(AbstractController.java:1322) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1246) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1139) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:939) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:654) [jboss-dependency.jar:2.2.0.SP2]
            at org.jboss.profileservice.dependency.ProfileActivationWrapper$BasicProfileActivation.start(ProfileActivationWrapper.java:190) [:0.2.2]
            at org.jboss.profileservice.dependency.ProfileActivationWrapper.start(ProfileActivationWrapper.java:87) [:0.2.2]
            at org.jboss.profileservice.dependency.ProfileActivationService.activateProfile(ProfileActivationService.java:215) [:0.2.2]
            at org.jboss.profileservice.dependency.ProfileActivationService.activate(ProfileActivationService.java:159) [:0.2.2]
            at org.jboss.profileservice.bootstrap.AbstractProfileServiceBootstrap.activate(AbstractProfileServiceBootstrap.java:112) [:0.2.2]
            at org.jboss.profileservice.resolver.BasicResolverFactory$ProfileResolverFacade.deploy(BasicResolverFactory.java:87) [:0.2.2]
            at org.jboss.profileservice.bootstrap.AbstractProfileServiceBootstrap.start(AbstractProfileServiceBootstrap.java:91) [:0.2.2]
            at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:132) [:6.1.0.Final]
            at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:56) [:6.1.0.Final]
            at org.jboss.bootstrap.impl.base.server.AbstractServer.startBootstraps(AbstractServer.java:827) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-6]
            at org.jboss.bootstrap.impl.base.server.AbstractServer$StartServerTask.run(AbstractServer.java:417) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-6]
            at java.lang.Thread.run(Thread.java:662) [:1.6.0_25]
    Caused by: java.lang.RuntimeException: Could not resolve @EJB reference: [EJB Reference: beanInterface 'java.util.List', beanName 'null', mappedName 'null', lookupName 'null', owning unit 'ComponentDe
    ploymentContext@848640405{org.jboss.metadata.ejb.jboss.JBossEnterpriseBeanMetaData.Authentication}'] for environment entry: env/org.gegenakw.ejb.user.Authentication/registration in unit ComponentDeplo
    ymentContext@848640405{org.jboss.metadata.ejb.jboss.JBossEnterpriseBeanMetaData.Authentication}
            at org.jboss.ejb3.jndi.deployers.resource.provider.AnnotatedEJBRefResourceProvider.provide(AnnotatedEJBRefResourceProvider.java:99) [:0.1.7]
            at org.jboss.ejb3.jndi.deployers.resource.provider.AnnotatedEJBRefResourceProvider.provide(AnnotatedEJBRefResourceProvider.java:50) [:0.1.7]
            at org.jboss.switchboard.mc.JndiEnvironmentProcessor.process(JndiEnvironmentProcessor.java:68) [:1.0.0-alpha-15]
            at org.jboss.switchboard.mc.deployer.AbstractSwitchBoardDeployer.process(AbstractSwitchBoardDeployer.java:119) [:1.0.0-alpha-15]
            at org.jboss.switchboard.mc.deployer.EJBEnvironmentSwitchBoardDeployer.internalDeploy(EJBEnvironmentSwitchBoardDeployer.java:87) [:1.0.0-alpha-15]
            at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:55) [:2.2.2.GA]
            at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:179) [:2.2.2.GA]
            ... 45 more
    
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