* @return A newly created instance of the BlockingActor class
*/
public final BlockingActor blockingActor(@DelegatesTo(BlockingActor.class) final Runnable handler) {
final BlockingActor actor = new RunnableBackedBlockingActor(handler);
actor.setParallelGroup(this);
actor.start();
return actor;
}
/**
* Creates a new instance of DefaultActor, using the passed-in runnable/closure as the body of the actor's act() method.