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https://issues.apache.org/jira/browse/ISIS-2296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17049818#comment-17049818
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ASF subversion and git services commented on ISIS-2296:
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Commit b79d9c97af50f9d356933207c1b2414b51062151 in isis's branch
refs/heads/master from Andi Huber
[ https://gitbox.apache.org/repos/asf?p=isis.git;h=b79d9c9 ]
ISIS-2296: remove unnecessary sync lock (different threads operate on
their own session stack)
> @RequestScoped isn't honoured ... also use @TransactionScope instead of our
> home-grown WithTransactionScope
> -----------------------------------------------------------------------------------------------------------
>
> Key: ISIS-2296
> URL: https://issues.apache.org/jira/browse/ISIS-2296
> Project: Isis
> Issue Type: Bug
> Reporter: Daniel Keir Haywood
> Assignee: Andi Huber
> Priority: Critical
> Fix For: 2.0.0-M3
>
>
> @RequestScoped isn't honoured (don't see new instance each request)
> The services are:
> * AcceptHeadersService
> * CommandContext
> * InteractionContext
> * Scratchpad
> * PublisherDispatchServiceDefault
> That's a big problem... I would expect them to be instantiated (and call
> @PostConstruct/@PreDestroy) for each request. As it is, they seem to be
> singletons.
> Also, these three further domain services are annotated with @RequestScoped,
> but also implement WithTransactionScope:
> * ChangedObjectService
> * QueryResultsCacheDefault
> * MetricsServiceDefault
> This callback is being called, so they are not memory leaking over time, but
> they are not thread-safe for concurrent transactions. At any rate, we should
> get rid of this home-grown transaction stuff and instead use Spring's
> @TransactionScope
> ~~~
> Also, AcceptHeadersServiceForRest (the RO implementation) although it is
> annotated with @RequestScoped, seems to have its own thread-local. This
> could probably be removed if it can be made to be properly request-scoped.
>
>
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