package testapp;

import javax.ejb.EJB;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;

public class TestInterceptor {

    @EJB(name = "ssBean2")
    private ssBean2Remote ssBean2;

    @AroundInvoke
    public Object myCheck(InvocationContext context) throws Exception {

        //this line will thrown a NPE if the EJB reference is 
        ssBean2.printMessage();
        return context.proceed();
    }
}