[BAEL-3934]shedlock update

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

@@ -0,0 +1,15 @@
+package com.baeldung;
+
+import net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@SpringBootApplication
+@EnableScheduling
+@EnableSchedulerLock(defaultLockAtMostFor = "PT30S")
+public class Application {
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

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

@@ -1,14 +0,0 @@
-package com.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-modules/spring-boot-libraries/src/main/java/com/baeldung/scheduling/shedlock/BaeldungTaskScheduler.java

@@ -5,9 +5,8 @@ import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
 @Component
-class TaskScheduler {
-
-    @Scheduled(cron = "*/15 * * * *")
+class BaeldungTaskScheduler {
+    @Scheduled(cron = "0 0/15 * * * ?")
     @SchedulerLock(name = "TaskScheduler_scheduledTask", lockAtLeastForString = "PT5M", lockAtMostForString = "PT14M")
     public void scheduledTask() {
         System.out.println("Running ShedLock task");

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

@@ -1,12 +1,16 @@
 package com.baeldung.scheduling.shedlock;
 
+import net.javacrumbs.shedlock.core.LockProvider;
+import net.javacrumbs.shedlock.provider.jdbctemplate.JdbcTemplateLockProvider;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock;
-import org.springframework.scheduling.annotation.EnableScheduling;
+
+import javax.sql.DataSource;
 
 @Configuration
-@EnableScheduling
-@EnableSchedulerLock(defaultLockAtMostFor = "PT30S")
 public class SchedulerConfiguration {
-
+    @Bean
+    public LockProvider lockProvider(DataSource dataSource) {
+        return new JdbcTemplateLockProvider(dataSource);
+    }
 }