checkstyle fix

applications/processor/twitter-trend-processor/src/test/java/org/springframework/cloud/stream/app/processor/twitter/trend/TwitterTrendLocationProcessorIntegrationTests.java

@@ -88,7 +88,9 @@ public class TwitterTrendLocationProcessorIntegrationTests {
 	@AfterEach
 	public void stopServer() {
 		mockServer.stop();
-		while (!mockServer.hasStopped(3,100L, TimeUnit.MILLISECONDS)){}
+		while (!mockServer.hasStopped(3, 100L, TimeUnit.MILLISECONDS)) {
+			// Do nothing
+		}
 	}
 
 	@Test