[jboss-jira] [JBoss JIRA] (WFLY-13051) provide setRemoveOnCancelPolicy on ManagedScheduledExecutorService

[nimo stephan (Jira)]

    [ https://issues.redhat.com/browse/WFLY-13051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14121428#comment-14121428 ] 

nimo stephan commented on WFLY-13051:
-------------------------------------

It is easy to "reproduce" this error by yourself. Simply try to use  "_setRemoveOnCancelPolicy(true)_" in any bean and you see the error. 
For example:


{code:java}
@Singleton
public class Start{

@Resource
private ManagedScheduledExecutorService executor;

@PostConstruct
void init(){

...

// this is actually not possible in JEE Environment
((ScheduledThreadPoolExecutor) executor).setRemoveOnCancelPolicy(true);

}

}
{code}


> 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 at 17.0.1.Final//org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:246)
> 	at org.jboss.as.ejb3 at 17.0.1.Final//org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:388)
> 	at org.jboss.as.ejb3 at 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)".



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