ThreadPoolTaskScheduler

Example

package com.logicbig.example;

import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;

import java.time.LocalTime;

public class ThreadPoolTaskSchedulerExample {
  public static void main(String[] args) throws InterruptedException {
      ThreadPoolTaskScheduler s = new ThreadPoolTaskScheduler();
      s.setPoolSize(5);
      s.initialize();
      for (int i = 0; i < 2; i++) {
          int finalI = i;
          s.scheduleAtFixedRate(
                  () -> System.out.printf("Task: %s, Thread: %s, Time: %s%n",
                          finalI,
                          Thread.currentThread().getName(),
                          LocalTime.now()), 1000);
      }
      Thread.sleep(10000);
      //shutting down after 10 sec
      s.getScheduledThreadPoolExecutor().shutdownNow();
  }
}

Output

Task: 0, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:06.504676100
Task: 1, Thread: ThreadPoolTaskScheduler-1, Time: 20:39:06.504676100
Task: 0, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:07.503680800
Task: 1, Thread: ThreadPoolTaskScheduler-3, Time: 20:39:07.505095500
Task: 1, Thread: ThreadPoolTaskScheduler-4, Time: 20:39:08.575560400
Task: 0, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:08.575560400
Task: 0, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:09.503270500
Task: 1, Thread: ThreadPoolTaskScheduler-5, Time: 20:39:09.506271200
Task: 0, Thread: ThreadPoolTaskScheduler-4, Time: 20:39:10.503615300
Task: 1, Thread: ThreadPoolTaskScheduler-3, Time: 20:39:10.504616900
Task: 1, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:11.509843800
Task: 0, Thread: ThreadPoolTaskScheduler-1, Time: 20:39:11.509843800
Task: 0, Thread: ThreadPoolTaskScheduler-1, Time: 20:39:12.503454400
Task: 1, Thread: ThreadPoolTaskScheduler-3, Time: 20:39:12.504939200
Task: 0, Thread: ThreadPoolTaskScheduler-5, Time: 20:39:13.504138
Task: 1, Thread: ThreadPoolTaskScheduler-5, Time: 20:39:13.504138
Task: 0, Thread: ThreadPoolTaskScheduler-4, Time: 20:39:14.503608
Task: 1, Thread: ThreadPoolTaskScheduler-1, Time: 20:39:14.504774600
Task: 0, Thread: ThreadPoolTaskScheduler-2, Time: 20:39:15.503183100
Task: 1, Thread: ThreadPoolTaskScheduler-3, Time: 20:39:15.505453700
Task: 0, Thread: ThreadPoolTaskScheduler-5, Time: 20:39:16.503429500
Task: 1, Thread: ThreadPoolTaskScheduler-4, Time: 20:39:16.504646

Example Project

Dependencies and Technologies Used:

• spring-context 6.2.12 (Spring Context)
   Version Compatibility: 4.0.0.RELEASE - 6.2.12Version List
  ×

  Version compatibilities of spring-context with this example:

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  Compatible Java Version: 17+
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  Versions in green have been tested.

• JDK 25
• Maven 3.9.11