Simple EJB3 session beans not deploying in JBOSS6

[Ravi Kumar Onteru]

Hi,

I am newbie to EJB3 and started my first example with JBOSS6 installed in my machine.

I am able to run the server and When i deploy the ejb jar file into "%JBOSS_HOME%\server\default\deploy\" directory, it is not showing any message saying that the bean or the application has been deployed.

Also when i am trying to access the same with standalone client, it is throwing the following Exception...
i would appriciate any help in resolving this issue.

D:\EJB3Dev\simple-ejb\src>java -cp %JBOSS_HOME%\client\jbossall-client.jar;.\..\classes;. example.ClientEjb
about to lookup the JNDI name:java:comp/env/ejb/HelloWorldBean
log4j:WARN No appenders could be found for logger (org.jnp.interfaces.TimedSocketFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" javax.naming.NameNotFoundException: comp not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)
at org.jnp.server.NamingServer.getObject(NamingServer.java:785)
at org.jnp.server.NamingServer.lookup(NamingServer.java:396)
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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:728)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:688)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at example.ClientEjb.main(ClientEjb.java:14)


Also here is my jndi.properties file in the "D:\EJB3Dev\simple-ejb\src" directory.
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099


Thanks & Regards,
Ravi

[Jaikiran Pai]

When i deploy the ejb jar file into "%JBOSS_HOME%\server\default\deploy\" directory, it is not showing any message saying that the bean or the application has been deployed.

What does that jar contain? Post the output of:

jar -tf yourejbjar.jar

[Sunny Bhandari]

if you could post the code of EJB and the client...

[Ravi Kumar Onteru]

Hi,

Here is the contents of the .jar file

C:\jboss-6.0.0\server\default\deploy>jar -tf HelloWorldEjb.jar
META-INF/
META-INF/MANIFEST.MF
../classes/example/HelloWorldInt.class
../classes/example/HelloWorldBean.class


And the Code is here

Business Interface:

package example;

import javax.ejb.Remote;

@Remote
public interface HelloWorldInt{

	public String sayHello(String s);

}

Bean Class:

package example;

import javax.ejb.Stateless;

@Stateless
public class HelloWorldBean implements HelloWorldInt{

	public String sayHello(String s){
		return "Hello " + s + " in EJB World";
	}
}

Standalone Client to access EJB

package example;

import javax.naming.*;
import javax.ejb.*;

public class ClientEjb{

	public static void main(String args[]) throws Exception {
		final String jndiName="HelloWorldBean/remote";
		Context ic = new InitialContext();
		System.out.println("about to lookup the JNDI name:"+jndiName);
		Object obj = ic.lookup(jndiName);
		System.out.println("Lookup returned:"+obj);
		HelloWorldInt hw = (HelloWorldInt)obj;
		String s = hw.sayHello("Ravi");
		System.out.println(s);
	}
}

Regards,
Ravi

[Ravi Kumar Onteru]

Hi,

Here is the client code i have tried.

package example;


import javax.naming.*;
import javax.ejb.*;

public class ClientEjb{

	public static void main(String args[]) throws Exception {
		final String jndiName="HelloWorldBean/remote";
		//final String jndiName ="java:comp/env/ejb/HelloWorldBean";
		Context ic = new InitialContext();
		System.out.println("about to lookup the JNDI name:"+jndiName);
		Object obj = ic.lookup(jndiName);
		System.out.println("Lookup returned:"+obj);
		HelloWorldInt hw = (HelloWorldInt)obj;
		String s = hw.sayHello("Ravi");
		System.out.println(s);
	}
}

Regards,
Ravi

[Ravi Kumar Onteru]

Hi,

The contents of the JAR seems to be invalid. And thanks for pointing me to the contents of the jar. I have re-created the jar file that contains the following contents:
C:\jboss-6.0.0\server\default\deploy>jar -tf HelloWorldEjb.jar
META-INF/
META-INF/MANIFEST.MF
example/HelloWorldBean.class
example/HelloWorldInt.class

After this trail, the JBOSS6 server is responding with a message that it has considered the jar for deployment as follows:

HelloWorldBean/remote - EJB3.x Default Remote Business Interface
HelloWorldBean/remote-example.HelloWorldInt - EJB3.x Remote Business Interface

18:22:20,437 WARN [org.jboss.ejb3.TimerServiceContainer] EJBTHREE-2193: using deprecated TimerServiceFactory for restoring timers

But still, when i am trying to run the client code, it is throwing the following exception:

[color=darkred]D:\EJB3Dev\simple-ejb\classes>java -cp %JBOSS_HOME%\client\jbossall-client.jar;. example.ClientEjb
about to lookup the JNDI name:java:comp/env/ejb/HelloWorldBean
log4j:WARN No appenders could be found for logger (org.jnp.interfaces.TimedSocketFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" javax.naming.NameNotFoundException: comp not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)
at org.jnp.server.NamingServer.getObject(NamingServer.java:785)
at org.jnp.server.NamingServer.lookup(NamingServer.java:396)
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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:728)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:688)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at example.ClientEjb.main(ClientEjb.java:14)[/color]

Please help in resolving the same.

Regards,
Ravi

[Ravi Kumar Onteru]

Hi,

Thanks for all your focus on the problem. The problem is resolved now. There were two issues.

The first problem was that, the contents of the jar file was invalid. It has the top level directories also.
For jndi.properties, was not accessible in the classpath, some how.

Both of these problems have been resolved and my first bean started working.

Thanks & Regards,
Ravi

[Jaikiran Pai]

Glad to know you got it working!