Can't get EJB injection to work, Please Help!

Question

I'm new to EJB 3.0, so I tried the "sample" EJB 3.0 stateless session bean sample from Oracle for JDev. (I'm using JDev 10.1.3.1.0 bld. 3984), very simple stuff:
package project1;
import javax.ejb.Remote;
@Remote
public interface Hello {
void sayHello(String inStr);
and
package project1;
import javax.ejb.Stateless;
@Stateless(name="Hello")
public class HelloBean implements Hello {
public HelloBean() {
public void sayHello(String inStr) {
System.out.println("Hello " + inStr );
I can deploy the Bean w/ no problems to the embedded OC4J (in JDev) by just clicking "Run" on it, and I can successfully run the "Client" based on the "Older" implicit JNDI look up as follows:
package project1;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class HelloClient {
public static void main(String [] args) {
try {
final Context context = getInitialContext();
Hello hello = (Hello)context.lookup("Hello");
Call any of the Remote methods below to access the EJB
hello.sayHello("John Doe");
} catch (Exception ex) {
ex.printStackTrace();
private static Context getInitialContext() throws NamingException {
// Get InitialContext for Embedded OC4J
// The embedded server must be running for lookups to succeed.
return new InitialContext();
The above client code works fine, too.
But when I try to run the following client (It compiles fine):
package project1;
import javax.ejb.EJB;
public class HelloClient {
@EJB private static Hello hello;
public static void main(String [] args) {
try {
hello.sayHello("John Doe");
} catch (Exception ex) {
ex.printStackTrace();
It DOES NOT work, the @EJB private static Hello hello seem to never get executed, as "hello" is always null and I get a null pointer exception on (hello.sayHello("John Doe"));.
I even tried to be more explicit and tried:
@EJB(name="Hello"") private static Hello hello
with no luck either.
What am I doing wrong?
I read all the threads here and no one seems to have problems w/ the provided sample, I even did a fresh re-install of my JDev with no help.
Thanks,
Reza

Answer 1

Hi,
duplicate post of
OC4J don't FULLY support injection of EJB implementing multiple interfaces?
Frank