import javax.resource.spi.Activation; //导入依赖的package包/类
/**
 * Process: @Activation
 * @param annotationRepository The annotation repository
 * @param classLoader The class loader
 * @param configProperties The config properties
 * @param plainConfigProperties The plain config properties
 * @return The updated metadata
 * @exception Exception Thrown if an error occurs
 */
private InboundResourceAdapter processActivation(AnnotationRepository annotationRepository, ClassLoader classLoader,
                                                 ArrayList<ConfigProperty> configProperties,
                                                 ArrayList<ConfigProperty> plainConfigProperties)
   throws Exception
{
   ArrayList<MessageListener> listeners = new ArrayList<MessageListener>();
   Collection<Annotation> values = annotationRepository.getAnnotation(Activation.class);
   if (values != null)
   {
      for (Annotation annotation : values)
      {
         listeners.addAll(attachActivation(annotation, classLoader, configProperties, plainConfigProperties));
      }
      listeners.trimToSize();
   }

   return new InboundResourceAdapterImpl(new MessageAdapterImpl(listeners, null), null);
}