Polish

spring-boot-samples/spring-boot-sample-jetty-ssl/src/test/java/sample/jetty/ssl/SampleJettySslApplicationTests.java

@@ -41,6 +41,7 @@ public class SampleJettySslApplicationTests {
 
 	@Autowired
 	private TestRestTemplate restTemplate;
+
 	@Autowired
 	private AbstractConfigurableWebServerFactory webServerFactory;
 
@@ -55,4 +56,5 @@ public class SampleJettySslApplicationTests {
 		assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 		assertThat(entity.getBody()).isEqualTo("Hello World");
 	}
+
 }

spring-boot-samples/spring-boot-sample-tomcat-multi-connectors/src/test/java/sample/tomcat/multiconnector/SampleTomcatTwoConnectorsApplicationTests.java

@@ -52,10 +52,13 @@ public class SampleTomcatTwoConnectorsApplicationTests {
 
 	@LocalServerPort
 	private int port;
+
 	@Autowired
 	private Ports ports;
+
 	@Autowired
 	private TestRestTemplate restTemplate;
+
 	@Autowired
 	private AbstractConfigurableWebServerFactory webServerFactory;
 

spring-boot-samples/spring-boot-sample-undertow/src/main/java/sample/undertow/web/SampleController.java

@@ -31,13 +31,7 @@ public class SampleController {
 
 	@GetMapping("/async")
 	public Callable<String> helloWorldAsync() {
-		return new Callable<String>() {
-
-			@Override
-			public String call() throws Exception {
-				return "async: Hello World";
-			}
-		};
+		return () -> "async: Hello World";
 	}
 
 }