ManagedScheduledExecutorService should be only available after server is ready ------------------------------------------------------------------------------ Key: WFLY-12329 URL: https://issues.jboss.org/browse/WFLY-12329 Project: WildFly Issue Type: Bug Components: Concurrency Utilities Affects Versions: 17.0.1.Final Reporter: nimo stephan Assignee: Eduardo Martins Priority: Major I use a *ManagedScheduledExecutorService* to execute tasks periodically: {code:java} @Startup @Singleton public class TaskScheduler { @Resource ManagedScheduledExecutorService executorService; @PostConstruct public void init() { executorService.scheduleAtFixedRate(this::task, 0, 5, TimeUnit.SECONDS); } public void task() { System.out.println("long running task:" + LocalTime.now()); } } {code} Wildfly throws a few exceptions as long as server is not fully initiated and in "suspend"-mode: {code:java} 12:44:12,715 ERROR [org.jboss.as.ee] (EE-ManagedScheduledExecutorService-default-Thread-3) WFLYEE0110: Failed to run scheduled task: java.lang.IllegalStateException: WFLYEE0111: Cannot run scheduled task my.Task$$Lambda$1041/0x000000080240a040@5ee966ec as container is suspended at org.jboss.as.ee@17.0.1.Final//org.jboss.as.ee.concurrent.ControlPointUtils$ControlledScheduledRunnable.run(ControlPointUtils.java:164) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) at org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.access$201(ManagedScheduledThreadPoolExecutor.java:383) at org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.run(ManagedScheduledThreadPoolExecutor.java:534) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:835) at org.glassfish.javax.enterprise.concurrent//org.glassfish.enterprise.concurrent.ManagedThreadFactoryImpl$ManagedThread.run(ManagedThreadFactoryImpl.java:250) {code} I use _ManagedScheduledExecutorService_ instead of _ScheduledExecutorService_ in JEE because, *ManagedScheduledExecutorService* should be managed by JEE. Hence, the server should also manage and guarantee not to fire the executorService until the server is ready (and EJBs are available).