@Override
			public void handleMessage(Message<?> message) throws MessagingException {
				assertEquals(expectedValue, message.getPayload());
				msgSent.set(true);
			}
@author Gary Russell
@author David Turanski
@since 1.0
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/integration/bus/local/LocalMessageBusTests.java