Polish "Samples cleanup"

Closes gh-10548

spring-boot-samples/spring-boot-sample-undertow-ssl/src/test/java/sample/undertow/ssl/SampleUndertowSslApplicationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * Copyright 2012-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -41,6 +41,7 @@ public class SampleUndertowSslApplicationTests {
 
 	@Autowired
 	private TestRestTemplate restTemplate;
+
 	@Autowired
 	private AbstractConfigurableWebServerFactory webServerFactory;
 
@@ -50,7 +51,7 @@ public class SampleUndertowSslApplicationTests {
 	}
 
 	@Test
-	public void testHome() throws Exception {
+	public void testHome() {
 		ResponseEntity<String> entity = this.restTemplate.getForEntity("/", String.class);
 		assertThat(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
 		assertThat(entity.getBody()).isEqualTo("Hello World");