gistfile1.txt

public class Channel {
 private final Queue<Runnable> queue ...
 private final ChannelExecutor executor;
 
 ....
 
 public EventExecutor executor() {
  return executor;
 }
 private final class ChannelExecuter implements EventExecutor, Runnable {
  EventExecutor origin;
  
  public void execute(Runnable task) {
   queue.add(task);
   origin.execute(this);
  }
  
  public void run() {
   for (;;) {
    Runnable task = queue.poll();
    if (task == null) {
     break;
    }
    task.run();
  }
 }
}