Hi all !
I have found an EJB 3 example from Oracle site, it uses dependency injection to invoke the EJB. Unfortunately it doesn't work on JBoss....I get a "NullPointerException" when I invoke the sayHello method.
Added also Context information but still doesn't work.
Do I need to add some configuration file to the EJB's jar file so that dependency injection works ???
This is the EJB
package oracle.ejb30;
import javax.ejb.Remote;
@Remote
public interface HelloWorld {
public void sayHello(String name);
}
-----------------------------------------------------
package oracle.ejb30;
import javax.ejb.Stateless;
@Stateless
public class HelloWorldBean implements HelloWorld {
public void sayHello(String name) {
System.out.println("Hello " + name
+ " from your first EJB 3.0 component ...");
}
}
-------------------------------------------------------
package oracle.ejb30;
import javax.ejb.EJB;
import java.util.*;
import javax.naming.*;
public class HelloWorldClient {
@EJB
private static HelloWorld helloWorld;
public static void main(String[] args) throws NamingException {
Properties env = new Properties();
env.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
env.setProperty("java.naming.provider.url", "localhost:1099");
env.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
Context ctx = new InitialContext(env);
System.out.println("Using Dependency Injection .. invoking sayHello ");
helloWorld.sayHello("Debu Panda!");
}
}
