JNDI and initial context lookup problems with glass fish three

[Chris Adkin]

I have a simple stand alone Java client, the code for which is:-

package www.client.com;

import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import www.async.com.AsyncBean;

public class Client {
public static void main(String[] args) {
try {
Properties jndiProps = new Properties();
jndiProps.put("java.naming.factory.initial", "com.sun.enterprise.naming.impl.SerialInitContextFactory");
jndiProps.put("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
jndiProps.put("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
jndiProps.setProperty("org.omg.CORBA.ORBInitialHost", "127.0.0.1");
jndiProps.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
Context ctx = new InitialContext(jndiProps);
@SuppressWarnings("unused")
AsyncBean mySessionBean = (AsyncBean)ctx.lookup("AsyncEJB");
} catch (Exception e) {
e.printStackTrace();
}
}
}

This invokes the following stateless bean:-

package www.async.com;

import javax.ejb.Stateless;

/**
* Session Bean implementation class AsyncBean
*/
@Stateless(mappedName="AsyncEJB")
public class AsyncBean implements AsyncBeanRemote, AsyncBeanLocal {

/**
* Default constructor.
*/
public AsyncBean() {
// TODO Auto-generated constructor stub
}

public void doSomething(String message) {
System.out.println(message);
}

}

The remote interface for this is:-

package www.async.com;
import javax.ejb.Remote;

@Remote
public interface AsyncBeanRemote {
public void doSomething(String message);
}

My understaning with JEE6 is that the mapping information provided with the @Stateless annotation should create a JNDI reference of AsyncBean for me, although I should not need any deployment descriptors, this is my sun-ejb-jar.xml file:-

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 9.0 EJB 3.0//EN" "http://www.sun.com/software/appserver/dtds/sun-ejb-jar_3_0-0.dtd">
<sun-ejb-jar>
<enterprise-beans>
<ejb>
<ejb-name>AsyncBean</ejb-name>
<jndi-name>AsyncEJB</jndi-name>
</ejb>
</enterprise-beans>
</sun-ejb-jar>


When I run the client I get:-

ava.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at www.client.com.Client.main(Client.java:19)
javax.naming.NamingException: Lookup failed for 'AsyncEJB' in SerialContext targetHost=127.0.0.1,targetPort=3700 [Root exception is javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext targetHost=127.0.0.1,targetPort=3700 [Root exception is java.lang.NullPointerException]]
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:442)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at www.client.com.Client.main(Client.java:19)
Caused by: javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext targetHost=127.0.0.1,targetPort=3700 [Root exception is java.lang.NullPointerException]
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:276)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
... 2 more
Caused by: java.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
... 3 more

My initial thoughts are that the lookup is not finding the JNDI reference for my bean, or the reference I'm providing is incorrect. I would have posted this on a Sun forum, if it were not for the fact that some moron appears to have completely spammed it. Can someone advise as to why my client is not working.

[Chris Adkin]

Fixed it !!!

I found: https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html#StandaloneRemoteEJB.

If the standlone client is to be run on the same machine as the app server, the client code is as simple as:-

package www.client.com;

import javax.naming.Context;
import javax.naming.InitialContext;
import www.async.com.AsyncBeanRemote;

//import www.async.com.AsyncBean;

public class Client {
public static void main(String[] args) {
try {
Context ctx = new InitialContext();
@SuppressWarnings("unused")
AsyncBeanRemote asyncBean = (AsyncBeanRemote)ctx.lookup("AsyncEJB");
} catch (Exception e) {
e.printStackTrace();
}
}
}

You only have to mess around with initial content factories, IIOP ports etc, if the client is genuinely remote. Also, the glass fish jar: appserv-rt.jar needs to be added to the build path.

Chris