[jboss-jira] [JBoss JIRA] (WFLY-13542) Container does not enforce bean-managed concurrency for timeout methods

[Fábio Silva (Jira)]

     [ https://issues.redhat.com/browse/WFLY-13542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fábio Silva updated WFLY-13542:
-------------------------------
    Steps to Reproduce: 
Sample bean:

{code:java}
import java.util.concurrent.locks.ReentrantLock;
import javax.ejb.Asynchronous;
import javax.ejb.ConcurrencyManagement;
import javax.ejb.ConcurrencyManagementType;
import javax.ejb.Schedule;
import javax.ejb.Singleton;

@Singleton
@ConcurrencyManagement(ConcurrencyManagementType.BEAN)
public class MySingleton {

  private static final ReentrantLock locker = new ReentrantLock();

  @Schedule(persistent = false, second = "0/1", minute = "*", hour = "*")
  public void requestEntry() {
    long id = Thread.currentThread().getId();
    if (locker.tryLock()) {
      System.out.println("Please come in, " + id + "!");
      doSomething();
      locker.unlock();
    } else {
      System.err.println("Please wait outside, " + id + "!");
    }
  }

  private void doSomething() {
    int timeout = (int) (Math.random() * 8000 + 1000);
    try {
      Thread.sleep(timeout);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }

}
{code}

  was:
Sample bean:

{code:java}
import java.util.concurrent.locks.ReentrantLock;
import javax.ejb.Asynchronous;
import javax.ejb.ConcurrencyManagement;
import javax.ejb.ConcurrencyManagementType;
import javax.ejb.Schedule;
import javax.ejb.Singleton;

@Singleton
@ConcurrencyManagement(ConcurrencyManagementType.BEAN)
public class MySingleton {

	private static final ReentrantLock locker = new ReentrantLock();

	@Schedule(persistent = false, second = "0/1", minute = "*", hour = "*")
	public void requestEntry() {
		long id = Thread.currentThread().getId();
		if (locker.tryLock()) {
			System.out.println("Please come in, " + id + "!");
			doSomething();
			locker.unlock();
		} else {
			System.err.println("Please wait outside, " + id + "!");
		}
	}

	private void doSomething() {
		int timeout = (int) (Math.random() * 8000 + 1000);
		try {
			Thread.sleep(timeout);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}

}
{code}




> Container does not enforce bean-managed concurrency for timeout methods
> -----------------------------------------------------------------------
>
>                 Key: WFLY-13542
>                 URL: https://issues.redhat.com/browse/WFLY-13542
>             Project: WildFly
>          Issue Type: Bug
>          Components: EJB
>    Affects Versions: 19.1.0.Final
>            Reporter: Fábio Silva
>            Assignee: Cheng Fang
>            Priority: Major
>
> Bean-managed concurrency for @Singleton EJBs is not enforced for timeout methods annotated with @Schedule. When a timeout is fired while the previous one is still running, the timeout method is not called. Instead, WildFly logs a warning like the following:
> {code:java}
> 20:58:54,000 WARN  [org.jboss.as.ejb3.timer] (EJB default - 2) WFLYEJB0043: A previous execution of timer [id=aa716284-ef7b-4bb3-a356-a8ca187255c4 timedObjectId=myweb.myweb.MySingleton auto-timer?:true persistent?:false timerService=org.jboss.as.ejb3.timerservice.TimerServiceImpl at 303bd2d5 previousRun=Sun May 31 20:57:10 BRT 2020 initialExpiration=null intervalDuration(in milli sec)=0 nextExpiration=Sun May 31 20:58:54 BRT 2020 timerState=IN_TIMEOUT info=null] ScheduleExpression [second=0/1;minute=*;hour=*;dayOfMonth=*;month=*;dayOfWeek=*;year=*;timezoneID=null;start=null;end=null] is still in progress, skipping this overlapping scheduled execution at: Sun May 31 20:58:54 BRT 2020.
> {code}



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