SimplePortableExtension.java

package com.serverco;

import javax.enterprise.event.Observes;

import javax.enterprise.inject.spi.AfterDeploymentValidation;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.Extension;

public class SimplePortableExtension implements Extension {
 
  public SimplePortableExtension() {
    super();
    // Called by java.util.ServiceLoader
  }
  
  public void containerIsOpenForBusiness(@Observes final AfterDeploymentValidation event, final BeanManager beanManager) {
    System.out.println("*** container is open for business!"); 
  }
  
}