Error Target Unreachable, identifier 'registrationBean' resolved to null

Question

I have an Enterprise Application in NetBeans comprising of 2 modules: test-ejb (EJB project) and test-war(Web application). In the web application I have a JSF page that makes a call to a method of a managed bean that exists in the test-ejb.

Inside register.xhtml:

<h:commandButton id="register" value="Register" action="#{registrationBean.doRegister}" />

The RegistrationBean.java is inside com.testpackage and has a method:

@ManagedBean
@RequestScoped
public class RegistrationBean {

    public String doRegister() {
        return "confirmation";
    }
}

Those two modules are automatically deployed by NetBeans in a JBoss 7.1 AS. When I run the web application and click the register button I get on my browser:

Target Unreachable, identifier 'registrationBean' resolved to null

My question is, how can I call a method of the RegistrationBean.java that resides in a different module than the web application.

As a solution I tried to add the .jar file of the EJB Module in the libraries of the web application, but it didn't help.

Thank you in advance!