Polish

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/sample/data/jpa/SampleDataJpaApplication.java

@@ -29,4 +29,5 @@ public class SampleDataJpaApplication {
 	public static void main(String[] args) throws Exception {
 		SpringApplication.run(SampleDataJpaApplication.class, args);
 	}
+
 }

spring-boot-samples/spring-boot-sample-secure/src/main/java/sample/secure/SampleSecureApplication.java

@@ -40,7 +40,7 @@ public class SampleSecureApplication implements CommandLineRunner {
 				new UsernamePasswordAuthenticationToken("user", "N/A", AuthorityUtils
 						.commaSeparatedStringToAuthorityList("ROLE_USER")));
 		try {
-			System.out.println(service.secure());
+			System.out.println(this.service.secure());
 		}
 		finally {
 			SecurityContextHolder.clearContext();