JNDI problem

[Sean Tiley]

Hi there,
I am trying to get a simple example of EJB working from Head First EJB and when I run my client I am getting the following error

javax.naming.NoInitialContextException: Need to specify class name in environmen
t or system property, or as an applet parameter, or in an application resource f
ile: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.lookup(Unknown Source)
at AdviceClient.go(AdviceClient.java:29)
at AdviceClient.main(AdviceClient.java:13)


What am I doing wrong, my code is as follows

 
import javax.naming.*;
import java.rmi.*;
import javax.rmi.*;
import ca.st.*;
import javax.ejb.*;
import java.util.*;
import com.sun.enterprise.naming.*;
 

 
public class AdviceClient{
public static void main(String[] args){
new AdviceClient().go();
}
 

public void go(){
try{
Context initialContext = new InitialContext();
Object o = initialContext.lookup("ejb/Advisor");
 
AdviceHome home = (AdviceHome) PortableRemoteObject.narrow(o,AdviceHome.class);
Advice advisor = home.create();
System.out.println(advisor.getAdvice());
}
catch(Exception ex){
ex.printStackTrace();
}
}
}
 

   

[Prem Kumar]

Hi

The exception that you get is probably because there are no
default properties for the JNDI Server you are using.Try modifying your
code like this. Also make sure you have j2ee.jar in your classpath.

Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.enterprise.naming.SerialInitContextFactory");
env.put(Context.PROVIDER_URL,
"localhost:1099");
Context initialContext = new InitialContext(env);

[Sean Tiley]

Thanks for the info.
Oddly enough today it works fine.

Thanks
Sean