javax.ejb.EJBException: Error occured while creating an Initial Context comp/version/NewEJB -- service jboss.naming.context.java.comp.version.NewEJB

[mitvivek]

Hi All,

My ejb-jar.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd">

<ejb-jar id="ejb-jar_ID">

<display-name>TestSessionEJB</display-name>

<enterprise-beans>

  <session id="NewEJB">

   <ejb-name>NewEJB</ejb-name>

   <home>web.ejbPkg.NewEJBHome</home>

   <remote>web.ejbPkg.NewEJB</remote>

   <ejb-class>web.ejbPkg.NewEJBBean</ejb-class>

   <session-type>Stateless</session-type>

   <transaction-type>Container</transaction-type>

  </session>

</enterprise-beans>

<assembly-descriptor id="AssemblyDescriptor_ID">

  <container-transaction>

   <method>

    <ejb-name>NewEJB</ejb-name>

    <method-name>*</method-name>

   </method>

   <trans-attribute>Required</trans-attribute>

  </container-transaction>

</assembly-descriptor>

</ejb-jar>

When I try and look up my ejb from code, it throws the following message:

[Mon Jan 28 11:00:57 IST 2013]  javax.ejb.EJBException: Error occured while creating an Initial Context comp/version/NewEJB -- service jboss.naming.context.java.comp.version.NewEJB

at web.ejbPkg.framework.ejb.HomeFactory.lookupHome(HomeFactory.java:239)

at web.ejbPkg.ordermanager.OdMgrAdp.<init>(OdMgrAdp.java:128)

at web.ejbPkg.sessionobserver.impl.CustomSessionObserver.<init>(CustomSessionObserver.java:85)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at java.lang.Class.newInstance0(Class.java:355)

at java.lang.Class.newInstance(Class.java:308)

at web.ejbPkg.sessionobserver.SessionListener.initializeSessionObserverList(SessionListener.java:69)

at web.ejbPkg.sessionobserver.SessionListener.<init>(SessionListener.java:39)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at org.jboss.msc.value.ConstructedValue.getValue(ConstructedValue.java:61)

at org.jboss.as.naming.ValueManagedReferenceFactory.getReference(ValueManagedReferenceFactory.java:50)

at org.jboss.as.ee.component.ManagedReferenceInterceptorFactory$ManagedReferenceInterceptor.processInvocation(ManagedReferenceInterceptorFactory.java:90)

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)

at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53)

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)

at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45)

at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)

at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)

at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:161)

at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:85)

at org.jboss.as.web.deployment.component.WebComponentInstantiator$1.<init>(WebComponentInstantiator.java:57)

at org.jboss.as.web.deployment.component.WebComponentInstantiator.getReference(WebComponentInstantiator.java:55)

at org.jboss.as.web.deployment.WebInjectionContainer.instantiate(WebInjectionContainer.java:101)

at org.jboss.as.web.deployment.WebInjectionContainer.newInstance(WebInjectionContainer.java:80)

at org.jboss.as.web.deployment.WebInjectionContainer.newInstance(WebInjectionContainer.java:74)

at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3294)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:3777)

at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:156)

at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:60)

at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:93)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

at java.util.concurrent.FutureTask.run(FutureTask.java:138)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:662)

at org.jboss.threads.JBossThread.run(JBossThread.java:122)

My ejbproperties.xml:

<?xml version="1.0"?>

<ejbproperties>

  <default-jndi-prefix>java:/comp/version/</default-jndi-prefix>

  <default-jndi-property>javax.naming.Context.INITIAL_CONTEXT_FACTORY=org.jboss.as.naming.InitialContextFactory</default-jndi-property>

</ejbproperties>

Please help me getting over this error.

Thanks

Vivek

[nickarls]

What is an ejbproperties.xml file?

[mitvivek]

We can use the ejbproperties.xml  to provide the information such as

naming context and other meta data information.

This can also be directly achieved in the code using:

Properties env = new Properties();

env.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.as.naming.InitialContextFactory");

InitialContext context = new InitialContext(env);

As for as the problem is concerned, its not able to lookup the ejb.

[nickarls]

Is the code in an EJB client? What is the complete JNDI name you are looking up?

[mitvivek]

My method through which my EJB is been looked up:

public EJBHome lookupHome(Class aClass) throws javax.ejb.EJBException {
try {
  // check to see if the home already exists
  EJBHome home = (EJBHome) homes.get(aClass);
  if (home != null)
   return home;

  // retrieve the EnterpriseBeanMetaData
  EnterpriseBeanMetaData enterpriseBeanMetaData = getEnterpriseBeanMetaData(aClass);

  // create the Initial Context
  InitialContext initialContext = new InitialContext(enterpriseBeanMetaData.getJndiProperties());
 
    // InitialContext context = new InitialContext(env);
   
     String lookupEJBString = enterpriseBeanMetaData.getJndiPrefix() + enterpriseBeanMetaData.getJndiHomeName();
  home = (EJBHome) initialContext.lookup(lookupEJBString);
 

  if (home == null) {
   throw new javax.ejb.EJBException("Error while creating the Home object for: " + lookupEJBString);
  }

  // store the home for future requests
  homes.put(aClass, home);
  return home;
} catch (javax.naming.NamingException ne) {.... }

catch (java.rmi.RemoteException e) {.... }

This method gets invoked as soon as the application gets loaded while the server is started.

The complete jndi lookup string I am trying to use is : "java:/comp/version/NewEJB"

[nickarls]

So the application deploys OK? And you see the EJBs bound to those JNDI names?

And instead of @EJB or @Inject you keep a cache or something with the home interfaces?

Design-wise it looks a bit non-EE:ish, is there a specific requirement for this architechture?

[mitvivek]

yes in the Jboss Admin console I can see the EJB being deployed:

NewEJB!web.ejbPkg.CatalogueEJB.NewEJB                               NewEJB'}

NewEJBHome!web.ejbPkg.CatalogueEJB.NewEJBHome                NewEJBHome'}

Its a very old application that I am trying to move from IBM to Jboss app server.

[nickarls]

Can't you just lookup like suggested in https://community.jboss.org/message/643495?_sscc=t?

Not sure about the JNDI name you are using (or if seeding the inital context with the stuff from the EJB metadata works)

[sfcoy]

{quote}java:/comp/version/NewEJB{quote}

is not a legal JNDI name in JBoss AS7.

You will need to change these JNDI references to the values that JBoss lists when it deploys your beans.

I also note that your ejb-jar.xml file is written to the EJB 1.1 spec (a mere 14 years old!).

I believe that JBoss AS7 draws the line at supporting EJB 2.1, and nothing older. So don't be surprised if you encounter other issues.