try
{
byte[] bytes = new String("pi").getBytes();
BytesMessage message = senderSession.createBytesMessage();
message.writeBytes(bytes);
message.writeDouble(3.14159);
sender.send(message);
Message m = receiver.receive(TestConfig.TIMEOUT);
Assert.assertTrue("The message should be an instance of BytesMessage.\n", m instanceof BytesMessage);
BytesMessage msg = (BytesMessage)m;