Post interceptors are invoked in the reverse order of pre interceptors

org.springframework.integration/src/test/java/org/springframework/integration/channel/interceptor/WireTapTests.java

@@ -111,7 +111,7 @@ public class WireTapTests {
 		QueueChannel secondaryChannel = new QueueChannel();
 		mainChannel.addInterceptor(new WireTap(secondaryChannel));
 		Message<?> message = new StringMessage("testing");
-		Thread.sleep(3);
+		Thread.sleep(50);
 		mainChannel.send(message);
 		Message<?> original = mainChannel.receive(0);
 		Message<?> duplicate = secondaryChannel.receive(0);