moved shedlock code example to module "spring-boot-libraries"

spring-boot-libraries/src/main/java/com/baeldung/Application.java

@@ -0,0 +1,14 @@
+package org.baeldung.boot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class Application {
+    private static ApplicationContext applicationContext;
+
+    public static void main(String[] args) {
+        applicationContext = SpringApplication.run(Application.class, args);
+    }
+}

spring-boot-libraries/src/main/java/com/baeldung/scheduling/shedlock/SchedulerConfiguration.java

@@ -0,0 +1,12 @@
+package com.baeldung.scheduling.shedlock;
+
+import org.springframework.context.annotation.Configuration;
+import net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@Configuration
+@EnableScheduling
+@EnableSchedulerLock(defaultLockAtMostFor = "PT30S")
+public class SchedulerConfiguration {
+
+}

spring-boot-libraries/src/main/java/com/baeldung/scheduling/shedlock/TaskScheduler.java

@@ -0,0 +1,15 @@
+package com.baeldung.scheduling.shedlock;
+
+import net.javacrumbs.shedlock.core.SchedulerLock;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Component
+class TaskScheduler {
+
+    @Scheduled(cron = "*/15 * * * * *")
+    @SchedulerLock(name = "TaskScheduler_scheduledTask", lockAtLeastForString = "PT5M", lockAtMostForString = "PT14M")
+    public void scheduledTask() {
+        System.out.println("Running ShedLock task");
+    }
+}