Add service sample

Closes gh-844

initializr-service-sample/src/main/java/sample/service/ServiceApplication.java

@@ -0,0 +1,38 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample.service;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.scheduling.annotation.EnableAsync;
+
+/**
+ * Sample service application.
+ *
+ * @author Stephane Nicoll
+ */
+@SpringBootApplication
+@EnableCaching
+@EnableAsync
+public class ServiceApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(ServiceApplication.class, args);
+	}
+
+}