GH-1037 Fix gradle build

Resolves #1037

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

@@ -1,93 +1,52 @@
-buildscript {
-	ext {
-		springBootVersion = '2.6.7'
-		wrapperVersion = '1.0.29.BUILD-SNAPSHOT'
-		shadowVersion = '5.1.0'
-	}
-	repositories {
-		mavenLocal()
-		jcenter()
-		mavenCentral()
-		maven { url "https://repo.spring.io/snapshot" }
-		maven { url "https://repo.spring.io/milestone" }
-	}
-	dependencies {
-		classpath "com.github.jengelman.gradle.plugins:shadow:${shadowVersion}"
-		classpath("org.springframework.boot.experimental:spring-boot-thin-gradle-plugin:${wrapperVersion}")
-		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
-		classpath("io.spring.gradle:dependency-management-plugin:1.0.8.RELEASE")
-	}
+/*
+ * This file was generated by the Gradle 'init' task.
+ */
+
+plugins {
+    id 'java-library'
+    id 'maven-publish'
 }
 
-apply plugin: 'java'
-apply plugin: 'maven-publish'
-apply plugin: 'eclipse'
-apply plugin: 'com.github.johnrengelman.shadow'
-apply plugin: 'org.springframework.boot'
-apply plugin: 'org.springframework.boot.experimental.thin-launcher'
-apply plugin: 'io.spring.dependency-management'
-
-group = 'io.spring.sample'
-version = '2.0.0.RELEASE'
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
-
 repositories {
-	mavenLocal()
-	mavenCentral()
-	maven { url "https://repo.spring.io/snapshot" }
-	maven { url "https://repo.spring.io/milestone" }
-}
+    mavenLocal()
+    maven {
+        url = uri('https://repo.spring.io/snapshot')
+    }
 
-ext {
-	springCloudFunctionVersion = "3.2.4"
-	awsLambdaEventsVersion = "3.9.0"
-	awsLambdaCoreVersion = "1.1.0"
-}
-ext['reactor.version'] = "3.1.7.RELEASE"
+    maven {
+        url = uri('https://repo.spring.io/milestone')
+    }
 
-assemble.dependsOn = [shadowJar, thinJar]
-
-jar {
-	manifest {
-		attributes 'Main-Class': 'example.FunctionConfiguration'
-	}
-}
-
-import com.github.jengelman.gradle.plugins.shadow.transformers.*
-
-shadowJar {
-	classifier = 'aws'
-	dependencies {
-		exclude(
-			dependency("org.springframework.cloud:spring-cloud-function-web:${springCloudFunctionVersion}"))
-	}
-	// Required for Spring
-	mergeServiceFiles()
-	append 'META-INF/spring.handlers'
-	append 'META-INF/spring.schemas'
-	append 'META-INF/spring.tooling'
-	transform(PropertiesFileTransformer) {
-		paths = ['META-INF/spring.factories']
-		mergeStrategy = "append"
-	}
-}
-
-configurations {
-	testCompile.extendsFrom(compileOnly)
-}
-
-dependencyManagement {
-	imports {
-		mavenBom "org.springframework.cloud:spring-cloud-function-dependencies:${springCloudFunctionVersion}"
-	}
+    maven {
+        url = uri('https://repo.maven.apache.org/maven2/')
+    }
 }
 
 dependencies {
-	implementation("org.springframework.cloud:spring-cloud-function-adapter-aws")
-	implementation("org.springframework.cloud:spring-cloud-starter-function-webflux")
-	implementation("org.springframework.boot:spring-boot-configuration-processor")
-	compileOnly("com.amazonaws:aws-lambda-java-events:${awsLambdaEventsVersion}")
-	compileOnly("com.amazonaws:aws-lambda-java-core:${awsLambdaCoreVersion}")
-	testCompile('org.springframework.boot:spring-boot-starter-test')
+    api 'org.springframework.cloud:spring-cloud-function-adapter-aws:4.0.3-SNAPSHOT'
+    api 'com.amazonaws:aws-lambda-java-events:3.9.0'
+    api 'org.springframework.boot:spring-boot-configuration-processor:3.0.5'
+    testImplementation 'org.springframework.boot:spring-boot-starter-test:3.0.5'
+    compileOnly 'com.amazonaws:aws-lambda-java-core:1.1.0'
+}
+
+group = 'io.spring.sample'
+version = '4.0.0.RELEASE'
+description = 'function-sample-aws'
+java.sourceCompatibility = JavaVersion.VERSION_1_8
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from(components.java)
+        }
+    }
+}
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+
+tasks.withType(Javadoc) {
+    options.encoding = 'UTF-8'
 }