Spring - Bean executes method twice

The below method refreshDatasets is executed twice when I run the app. Any idea what I messed up with the configuration of Spring (annotation based)?

SchedulingTasks

@Component
@EnableScheduling
public class SchedulingTasks {

	private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");

	@Autowired
	public TestClass testclass;

	@Scheduled(fixedDelay = 1 * 60 * 60 * 1000)
	public void refreshDatasets() {
		testclass.simpleTest();
		System.out.println("The time is now " + dateFormat.format(new Date()));
	}
}

TestClass

@Component
public class TestClass {
	public void simpleTest() {
		System.out.println("FINISHED");
	}
}

Configuration

@Configuration
@ComponentScan(basePackages = "com.some.analytics.scripts",
excludeFilters = {@ComponentScan.Filter (
		type= FilterType.ANNOTATION,
		value=Configuration.class)})
public class ScriptsConfig {

	@Bean
	public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
		PropertySourcesPlaceholderConfigurer p =  new PropertySourcesPlaceholderConfigurer();
		p.setIgnoreResourceNotFound(true);

		return p;
	}
}

Main

public class Scripts {

	public static void main(String[] args) {
		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(ScriptsConfig.class);

		SchedulingTasks schedulingTasks = ctx.getBean(SchedulingTasks.class);
		schedulingTasks.refreshDatasets();
	}
}

When running the main method, I get the following output:

FINISHED The time is now 11:08:39 
FINISHED The time is now 11:08:39

When using the @EnableScheduling annotation, Spring creates a TaskExecutor in the background. This will schedule all the @Scheduled methods. In the case of methods with fixedDelay, they will be fired instantly (unless initialDelay is set).

You are also programatically executing the task, so you have two executions:

• The one executed by Spring
• The one executed in the main method.

You should remove the manual invocation, and everything should work as expected.

You can find more information in https://spring.io/guides/gs/scheduling-tasks/ and https://docs.spring.io/spring/docs/current/spring-framework-reference/integration.html#scheduling-task-scheduler