Scheduled tasks is runnings two times in tomcat production - spring

Question

I have onde app spring-boot v2 with one class Scheduled, in developer enviroment my method run in class Scheduled run one times.
But i build for production (using mvn clean package) and publishing in tomcat 8
my task is executing two times
This is my class #Scheduled
#Service
#EnableScheduling
public class SchedulerEmailService {
#Autowired
private SenderEmailService senderEmailService;
private static final Logger LOG = LoggerFactory.getLogger(SchedulerEmailService.class);
#Autowired
private TaskService taskService;
#Scheduled(fixedDelay = 10000)
public void run() {
LOG.info("Status do Servico: " + taskService.isEnabled());
if(taskService.isEnabled()) {
LOG.info("Executando... {}", LocalDateTime.now());
senderEmailService.enviarEmail();
}else {
LOG.info("Falsa execução do servico... {}", LocalDateTime.now());
}
}
}
In production this is log
O servico foi parado
Status do Servico: false
Falsa execução do servico... 2018-08-21T15:26:59.663
Status do Servico: true
Executando... 2018-08-21T15:27:01.183
Status do Servico: false
Falsa execução do servico... 2018-08-21T15:27:09.664
Status do Servico: true
Executando... 2018-08-21T15:27:11.368
See in log that her run one times for false and other for true.
Obs: I define that variable taskService.isRunning for false
but in exists other task in executing of value default true
Edit
I print in log the hash code class and this is a result:
2018-08-22 07:49:45.996 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : Status do Servico: true
2018-08-22 07:49:45.996 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : HashCode Classe: 19875385
2018-08-22 07:49:45.996 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : Executando... 2018-08-22T07:49:45.996
2018-08-22 07:49:50.730 INFO 8168 --- [pool-20-thread-1] c.c.s.services.SchedulerEmailService : Status do Servico: true
2018-08-22 07:49:50.730 INFO 8168 --- [pool-20-thread-1] c.c.s.services.SchedulerEmailService : HashCode Classe: 11898713
2018-08-22 07:49:50.731 INFO 8168 --- [pool-20-thread-1] c.c.s.services.SchedulerEmailService : Executando... 2018-08-22T07:49:50.731
2018-08-22 07:49:56.121 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : Status do Servico: true
2018-08-22 07:49:56.121 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : HashCode Classe: 19875385
2018-08-22 07:49:56.121 INFO 8168 --- [pool-19-thread-1] c.c.s.services.SchedulerEmailService : Executando... 2018-08-22T07:49:56.121
Exists two diferent class in execution.
What resolve this ?

Answer 1

From the hashCode in the log you can see that the SchedulerEmailService gets instantiated twice by Spring.
I'm not 100% sure about the reason but the #EnableScheduling annotation is not meant to be used on a bean class but on a #Configuration class
Enables Spring's scheduled task execution capability, similar to functionality found in Spring's XML namespace. To be used on #Configuration classes as follows:
https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/scheduling/annotation/EnableScheduling.html
I would suggest removing the #EnableScheduling annotation from SchedulerEmailService and adding a config like with a ComponentScan including the package of SchedulerEmailService.
#Service
public class SchedulerEmailService {
// ...
#Scheduled(fixedDelay = 10000)
public void run() {
// ...
}
}
#Configuration
#EnableScheduling
#ComponentScan(basePackages="your.package")
public class AppConfig {
}