BlockingFireAndForgetAlternativeBean.java

package com.acme.cdiejb.async;

import java.util.concurrent.CountDownLatch;

import javax.ejb.Asynchronous;
import javax.ejb.Local;
import javax.ejb.Stateless;
import javax.enterprise.inject.Alternative;

@Alternative
@Stateless
@Local(FireAndForget.class)
public class BlockingFireAndForgetAlternativeBean extends FireAndForgetBean {
    public static CountDownLatch LATCH = new CountDownLatch(1);

    public static ThreadLocal<Long> threadValue = new ThreadLocal<Long>();

    @Override
    @Asynchronous
    public void fire(long busy) {
        System.out.println("Starting operation");
        System.out.println("Current thread [id=" + Thread.currentThread().getId() +
                "; name=" + Thread.currentThread().getName() + "]");
        super.fire(busy);
        System.out.println("Operation completed");
        threadValue.set(Thread.currentThread().getId());
        LATCH.countDown();
    }
}