NameNotFoundException on EJB lookup in standalone client

[fchapuis]

Hi,

I'm trying to test EJB access from a standalone java client.
EJBs are part of J2EE application deploying and working fine on JBoss 3.2.7RC1 (default config).
The client uses the jbossall-client.jar and an app-client.jar with interfaces of EJBs.
Cautiously, I shutdown my personnal firewall.
And here is the EJB from the JNDIView Global Namespace:

 +- ejb (class: org.jnp.interfaces.NamingContext)
 | +- com.fred.demat.core.MyService

Below is the code doing the lookup:

Hashtable env = new Hashtable();

env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory" );
env.put(Context.PROVIDER_URL, "jnp://localhost:1099");

InitialContext ic = new InitialContext(env);

Object objref = ic.lookup("MyService");
Object obj = PortableRemoteObject.narrow(objref, MyServiceHome.class);
MyServiceHome testHome = (MyServiceHome)obj;
MyService svc = (MyService)testHome.create();

And below is the error:

javax.naming.NameNotFoundException: MyService not bound
 at org.jnp.server.NamingServer.getBinding(NamingServer.java:490)
 at org.jnp.server.NamingServer.getBinding(NamingServer.java:498)
 at org.jnp.server.NamingServer.getObject(NamingServer.java:504)
 at org.jnp.server.NamingServer.lookup(NamingServer.java:277)
 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:324)
 at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
 at sun.rmi.transport.Transport$1.run(Transport.java:148)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
 at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
 at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
 at java.lang.Thread.run(Thread.java:536)
 at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
 at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
 at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
 at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:544)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:520)
 at javax.naming.InitialContext.lookup(InitialContext.java:347)
 at com.fred.test.TestJndiLookup.rmiTest(TestJndiLookup.java:95)
 at com.fred.test.TestJndiLookup.main(TestJndiLookup.java:43)

I've seen many users having the this kind of problem but found no efficient answer.
If anyone can help, thank you.

[tschraepen]

See the following thread:

Please help
http://www.jboss.org/modules/bb/index.html?module=bb&op=viewtopic&t=forums/ Patrick

[tschraepen]

I'm having the same problem I think.

But I'm getting "javax.naming.NameNotFoundException: comp not bound".
But I don't have any EJB's called comp.
I checked the JMX console ( service=JNDIview, invoke listXML() ) and there I find the following interesting piece of text:

java:

XAConnectionFactory
org.jboss.mq.SpyXAConnectionFactory

DefaultDS
org.jboss.resource.adapter.jdbc.WrapperDataSource

SecurityProxyFactory
org.jboss.security.SubjectSecurityProxyFactory

DefaultJMSProvider
org.jboss.jms.jndi.JNDIProviderAdapter

comp
javax.naming.Context

JmsXA
org.jboss.resource.adapter.jms.JmsConnectionFactoryImpl

ConnectionFactory
org.jboss.mq.SpyConnectionFactory

There's also this snippet in relation to my EJB's:

null

java:comp
Person

env
org.jnp.interfaces.NamingContext


java:comp
Address

env
org.jnp.interfaces.NamingContext


java:comp
CredentialsSessionFacade

env
org.jnp.interfaces.NamingContext

ejb
org.jnp.interfaces.NamingContext

PersonLocal
ejb/PersonLocal
javax.naming.LinkRef

AddressLocal
ejb/AddressLocal
javax.naming.LinkRef

[tschraepen]

Also, I'm deploying my EJB's through an .ear file using the JBossIDE for Eclipse.
I've included the interfaces bundled in a .jar file in my Client project, along with jbossall-client.jar.

I've generated most of the interface-classes using XDoclet and JBossIDE.
The error occurs when I call "CredentialsSessionFacadeUtil.getHome(env)". This method in turn calls the .lookup method on the InitialContext.

[tschraepen]

Hello everyone

I "fixed" my problem.
The generated Util class uses COMP_NAME to perform the lookup.
COMP_NAME being "java:comp/env/ejb/CredentialsSessionFacade".
That's why "comp" wasn't bound.
Instead I used "ejb/CredentialsSessionFacade" and it worked.

But I don't understand the difference between java:comp/env and ejb/...
Can anyone explain the difference?

Thanks in advance.

[hariv]

Guys

You can set xdoclet to generate the utility classes to use the JNDI name referring to the global namespace instead on the local env.
If you add @ejb.util
* generate="physical"