How to deploy a Java EE simple application

I'm trying to run this simple and small application but I don't understand which is the problem and consequently how to fix it.

Here it is the code. It is very simple. One bean invoked by a client application in order to print out in the client terminal the well-known message Hello World. I have created the application by using Intellij Idea 13.0.3 IDE with Server GlassFish 4.0.0, Java JDK 8.0. May you explain me step-by-step what I should do to run this application in the ide?

package myejb;import javax.ejb.Remote;@RemotepublicinterfaceHello{    publicString sayHello(String name);}

package myejb;import javax.ejb.Remote;import javax.ejb.Stateless;@Stateless(name ="HelloEJB")@Remote({Hello.class})publicclassHelloBeanimplementsHello{    publicHelloBean()    {    }    @Override    publicString sayHello(String name)    {        return"Hello, "+ name +"!";    }}

and the Client application

package myejbclient;import javax.ejb.EJB;import myejb.Hello;publicclassHelloClient{    @EJB(lookup ="HelloEJB")    privatestaticHello hello;    publicHelloClient()    {    }    publicstaticvoid main(String[] args)    {        HelloClient client =newHelloClient();        client.doConversation();    }    publicvoid doConversation()    {        System.out.println(hello.sayHello("World"));    }}

I execute glassfish to deploy the application. it is deployed correctly but when I run the client application I get this error message:

Exceptionin thread "main" java.lang.NullPointerException    at myejbclient.HelloClient.doConversation(HelloClient.java:27)    at myejbclient.HelloClient.main(HelloClient.java:22)    at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:483)    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)