Turned on checkstyle

spring-cloud-function-samples/function-sample-task/build.gradle

@@ -39,9 +39,9 @@ ext {
 ext['reactor.version'] = "3.1.7.RELEASE"
 
 dependencyManagement {
-     imports {
-          mavenBom "org.springframework.cloud:spring-cloud-function-dependencies:${springCloudFunctionVersion}"
-     }
+	imports {
+		mavenBom "org.springframework.cloud:spring-cloud-function-dependencies:${springCloudFunctionVersion}"
+	}
 }
 
 dependencies {

spring-cloud-function-samples/function-sample-task/pom.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xmlns="http://maven.apache.org/POM/4.0.0"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>io.spring.sample</groupId>
@@ -19,7 +20,8 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>2.0.2.BUILD-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>2.0.2.BUILD-SNAPSHOT
+		</spring-cloud-function.version>
 		<wrapper.version>1.0.10.RELEASE</wrapper.version>
 		<reactor.version>3.1.2.RELEASE</reactor.version>
 	</properties>

spring-cloud-function-samples/function-sample-task/src/main/java/com/example/SampleApplication.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -19,10 +19,13 @@ package com.example;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+// @checkstyle:off
 @SpringBootApplication
 public class SampleApplication {
 
 	public static void main(String[] args) throws Exception {
 		SpringApplication.run(SampleApplication.class, args);
 	}
+
 }
+// @checkstyle:on

spring-cloud-function-samples/function-sample-task/src/main/resources/application.yml

@@ -4,7 +4,7 @@ spring:
       task:
         supplier: words
         function: uppercase
-        consumer: print        
+        consumer: print
       compile:
         words:
           type: supplier