log.info("ok");
   public void testNonRecoverableChannel_4_1() throws Exception   {      if (channel.isRecoverable())      {         // we test only non-recoverable channels now         return;      }      if (channel.acceptReliableMessages())      {         // we test channels that don't accept reliable messages         return;      }      // the channel has no receivers      assertFalse(channel.iterator().hasNext());      SimpleDeliveryObserver observer = new SimpleDeliveryObserver();      Message[] messages = new Message[NUMBER_OF_MESSAGES];      for(int i = 0; i < NUMBER_OF_MESSAGES; i++)      {         messages[i] = MessageFactory.createMessage("message" + i, true, "payload" + i);         // non-transacted send, reliable message, multiple messages         Delivery delivery = channel.handle(observer, messages[i], null);         // the channel must not accept the message         assertNull(delivery);      }      assertTrue(channel.browse().isEmpty());   }