[jboss-jira] [JBoss JIRA] (WFLY-4384) ContextService (JSR236): transactional context always suspended

[Eduardo Martins (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-4384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13045011#comment-13045011 ] 

Eduardo Martins edited comment on WFLY-4384 at 2/28/15 2:16 AM:
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The "execution" property is related to the thread invoking/executing the contextual object, which may not be the thread creating that object. In your example code the executing thread is a ManagedExecutorService internal thread, which has no transaction.

You can see an example of its usage at [http://docs.oracle.com/javaee/7/api/javax/enterprise/concurrent/ContextService.html#createContextualProxy(T,%20java.util.Map,%20java.lang.Class)]


was (Author: emmartins):
The "execution" property is related to the thread invoking/executing the contextual object, which may not be the thread creating that object. In your example code the executing thread is a ManagedExecutorService internal thread, which has no transaction.

You can see an example of its usage at http://docs.oracle.com/javaee/7/api/javax/enterprise/concurrent/ContextService.html#createContextualProxy(T,%20java.util.Map,%20java.lang.Class)

> ContextService (JSR236): transactional context always suspended
> ---------------------------------------------------------------
>
>                 Key: WFLY-4384
>                 URL: https://issues.jboss.org/browse/WFLY-4384
>             Project: WildFly
>          Issue Type: Bug
>          Components: EE
>    Affects Versions: 8.2.0.Final, 9.0.0.Alpha1
>            Reporter: Maxim Frolov
>            Assignee: Eduardo Martins
>            Priority: Critical
>
> According to §3.3.5 of JSR-236 specification: 
> ??By using an execution property when creating the contextual proxy object, application components can choose to not suspend the transactional context on the thread ...??
> Given the following EJB and Task:
> {code:java}
> @WebService(serviceName = "Jsr236WebService")
> @Stateless
> public class Jsr236WebService {
>     @Inject Jsr236ManagedTask jsr236ManagedTask;
>     @Resource ManagedExecutorService executor;
>     @Resource ContextService contextService;
>  
>     @WebMethod(operationName = "hello")
>     public String hello(@WebParam(name = "name") String txt) {
>         Map<String, String> execProps = new HashMap<>();
>         execProps.put(ManagedTask.TRANSACTION, ManagedTask.USE_TRANSACTION_OF_EXECUTION_THREAD);
>         Future<String> future = executor.submit(
>                 contextService.createContextualProxy(jsr236ManagedTask, execProps, Callable.class));
>         try {
>             return future.get();
>         } catch (InterruptedException | ExecutionException e) {
>             throw new RuntimeException(e);
>         }
>     }
> }
> {code}
> {code:java}
> @Dependent
> @Transactional(Transactional.TxType.MANDATORY)
> public class Jsr236ManagedTask implements Callable<String>, ManagedTask {
>     @Override
>     public String call() {
>         return "called";
>     }
>     @Override
>     public Map<String, String> getExecutionProperties() {
>        Map<String, String> execProps = new HashMap<>();
>         execProps.put(ManagedTask.TRANSACTION, ManagedTask.USE_TRANSACTION_OF_EXECUTION_THREAD);
>         return execProps;
>     }
> }
> {code}
> When the {{call()}} Method of the task is called the following exception occurs:
> {noformat}
> javax.transaction.TransactionalException: ARJUNA016110: Transaction is required for invocation
> {noformat}
> See maven test project [https://github.com/wrungel/bugs/tree/master/jsr236-test] on GitHub.



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