If you really need to remove tasks when canceled (instead of when these expire)

provide setRemoveOnCancelPolicy on ManagedScheduledExecutorService ------------------------------------------------------------------ Key: WFLY-13051 URL: https://issues.redhat.com/browse/WFLY-13051 Project: WildFly Issue Type: Enhancement Components: Concurrency Utilities Affects Versions: 19.0.0.Beta1 Reporter: nimo stephan Assignee: Eduardo Martins Priority: Major Using {code:java} @Resource private ManagedScheduledExecutorService executor; {code} provides no possiblity to setRemoveOnCancelPolicy to true. A casting within a method: {code:java} ((ScheduledThreadPoolExecutor) executor).setRemoveOnCancelPolicy(true); {code} throws the error: {code:java} Caused by: javax.ejb.EJBException: java.lang.ClassCastException: class org.glassfish.enterprise.concurrent.ManagedScheduledExecutorServiceAdapter cannot be cast to class java.util.concurrent.ScheduledThreadPoolExecutor (org.glassfish.enterprise.concurrent.ManagedScheduledExecutorServiceAdapter is in unnamed module of loader 'org.glassfish.javax.enterprise.concurrent' @a93b7af; java.util.concurrent.ScheduledThreadPoolExecutor is in module java.base of loader 'bootstrap') at org.jboss.as.ejb3@17.0.1.Final//org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:246) at org.jboss.as.ejb3@17.0.1.Final//org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:388) at org.jboss.as.ejb3@17.0.1.Final//org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:68) {code} Please provide option to cast or if not possible to add the property {code:java} setRemoveOnCancelPolicy() {code} within the object ManagedScheduledExecutorService. Because without it, we cannot remove a task from the queue with "future.cancel(false)".